Olumide S. Daramola, Navjot Singh, Joseph E. Iboyi, Pratap Devkota
Abstract The increased incidence of glyphosate-resistant weeds has led to an exponential increase in the use of glufosinate in glufosinate-resistant corn, cotton, and soybean. Field experiments were conducted in 2021 and 2022 to evaluate peanut response to glufosinate at 25 and 60 d after planting, corresponding to vegetative (V3) and reproductive (R4) growth stages, at 1.2, 4.7, 18.9, 75.5, and 302 g ai ha -1 representing 1/514 to 1/2 of the labeled rate of 604 g ha -1 . Peanut injury and canopy and yield reductions from glufosinate were <10% when applied at 1.2, 4.7, and 18.9 g ha -1 . However, at 75.5 and 302 g ha -1 peanut injury ranged from 24% to 72% for V3 exposure timing and 33% to 54% for R4 exposure timing. Similarly, glufosinate at 75.5 and 302 g ha -1 reduced peanut canopy width by 10% to 23% for V3 exposure timing and 43% to 57% for R4 exposure timing. Averaged across exposure timing, peanut yield was reduced by 15% and 61% at 75.5 and 302 g ha -1 , respectively. Averaged across rates, peanut yield reduction was 18% for V3 exposure timing, with glufosinate at 298 g ha -1 required to cause an estimated 50% reduction in yield. For R3 exposure timing, peanut yield reduction was 20%, with glufosinate at 243 g ha -1 required to cause an estimated 50% reduction in yield. There was no difference in Normalized Difference Vegetative Index (NDVI) between untreated plants and peanut exposed to glufosinate at 1.2, 4.7, and 18.9 g ha -1 . However, peanut exposed to glufosinate at 75.5 and 302 g ha -1 were distinguished from untreated plants with lower NDVI values. Based on Pearson’s Rho correlation coefficient, the best timing for assessing potential yield reduction based on injury was between 2 and 4 wk after treatment.
抗草甘膦杂草发病率的增加导致抗草甘膦玉米、棉花和大豆中草甘膦的使用呈指数增长。在2021年和2022年进行了田间试验，以评估花生在种植后25和60 d对草铵膦的反应，对应于营养(V3)和生殖(R4)生长阶段，分别为1.2、4.7、18.9、75.5和302 g ha -1，占604 g ha -1标记率的1/514至1/2。施用1.2、4.7和18.9 g / ha -1时，草甘膦对花生的伤害、冠层和产量的减少均为10%。然而，在75.5和302 g ha -1时，V3暴露时间的花生损伤为24% ~ 72%，R4暴露时间为33% ~ 54%。同样，75.5 g和302 g ha -1的草铵膦使V3暴露时间的花生冠层宽度减少10%至23%，R4暴露时间的花生冠层宽度减少43%至57%。处理75.5 g ha -1和302 g ha -1时，花生产量分别降低15%和61%。平均而言，在V3暴露的时间内，花生产量减少18%，草铵膦用量为298 g ha -1，估计会导致产量减少50%。对于R3暴露时间，花生产量减少20%，草铵膦用量为243 g ha -1，估计产量减少50%。未处理花生与1.2、4.7和18.9 g / ha -1草铵膦处理花生的归一化差异营养指数(NDVI)无显著差异。然而，75.5和302 g ha -1草铵膦处理花生NDVI值较低，与未处理花生不同。根据Pearson’s Rho相关系数，评估基于伤害的潜在产量减少的最佳时机是在治疗后2 - 4周。
{"title":"Growth and Yield Response of Peanut to Simulated Drift of Glufosinate at Vegetative and Reproductive Growth Stages","authors":"Olumide S. Daramola, Navjot Singh, Joseph E. Iboyi, Pratap Devkota","doi":"10.1017/wet.2023.81","DOIUrl":"https://doi.org/10.1017/wet.2023.81","url":null,"abstract":"Abstract The increased incidence of glyphosate-resistant weeds has led to an exponential increase in the use of glufosinate in glufosinate-resistant corn, cotton, and soybean. Field experiments were conducted in 2021 and 2022 to evaluate peanut response to glufosinate at 25 and 60 d after planting, corresponding to vegetative (V3) and reproductive (R4) growth stages, at 1.2, 4.7, 18.9, 75.5, and 302 g ai ha -1 representing 1/514 to 1/2 of the labeled rate of 604 g ha -1 . Peanut injury and canopy and yield reductions from glufosinate were <10% when applied at 1.2, 4.7, and 18.9 g ha -1 . However, at 75.5 and 302 g ha -1 peanut injury ranged from 24% to 72% for V3 exposure timing and 33% to 54% for R4 exposure timing. Similarly, glufosinate at 75.5 and 302 g ha -1 reduced peanut canopy width by 10% to 23% for V3 exposure timing and 43% to 57% for R4 exposure timing. Averaged across exposure timing, peanut yield was reduced by 15% and 61% at 75.5 and 302 g ha -1 , respectively. Averaged across rates, peanut yield reduction was 18% for V3 exposure timing, with glufosinate at 298 g ha -1 required to cause an estimated 50% reduction in yield. For R3 exposure timing, peanut yield reduction was 20%, with glufosinate at 243 g ha -1 required to cause an estimated 50% reduction in yield. There was no difference in Normalized Difference Vegetative Index (NDVI) between untreated plants and peanut exposed to glufosinate at 1.2, 4.7, and 18.9 g ha -1 . However, peanut exposed to glufosinate at 75.5 and 302 g ha -1 were distinguished from untreated plants with lower NDVI values. Based on Pearson’s Rho correlation coefficient, the best timing for assessing potential yield reduction based on injury was between 2 and 4 wk after treatment.","PeriodicalId":23710,"journal":{"name":"Weed Technology","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135633983","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Aruna Varanasi, Daljit Singh, Jenny Krebel, Jeffrey Herrmann, John Willis, Greg Elmore, Joshua Fischer, Ty Witten, Graham Head, Chandrashekar Aradhya
Abstract Herbicide resistance in weeds significantly threatens crop production in the United States. The introduction of dicamba-resistant soybean and cotton stacked with other herbicide tolerance traits has provided farmers with the flexibility to use multiple herbicide options to diversify their weed management practices and delay resistance evolution. XtendiMax ® herbicide with VaporGrip ® Technology is a dicamba formulation registered for use in dicamba-resistant soybean and cotton by the United States Environmental Protection Agency (US-EPA). One of the terms of its registration includes evaluating inquiries on reduced weed control efficacy by growers or users of XtendiMax for suspected weed resistance. A total of 3555 product performance inquiries (PPIs) were received from 2018 to 2021 regarding reduced weed control efficacy by dicamba. Following Norsworthy criteria recommended by US-EPA, for screening of suspected resistance in the field, a total of 103 weed accessions from sixty-three counties in 13 states were collected for greenhouse testing over those 4 years. Collection of weed accession(s) for greenhouse testing was made only in states where resistance to dicamba was not yet confirmed in the weed species under investigation. The accessions, which consisted primarily of waterhemp and Palmer amaranth, were treated with dicamba at 560g ae ha -1 and 1120g ae ha -1 rates. All weed accessions except for an accession each of Palmer amaranth and waterhemp, were controlled ≥90% by dicamba at 21 days after treatment in the greenhouse.
{"title":"Investigation of inquiries on weed control efficacy of XtendiMax<sup>®</sup> herbicide with VaporGrip<sup>®</sup> technology","authors":"Aruna Varanasi, Daljit Singh, Jenny Krebel, Jeffrey Herrmann, John Willis, Greg Elmore, Joshua Fischer, Ty Witten, Graham Head, Chandrashekar Aradhya","doi":"10.1017/wet.2023.83","DOIUrl":"https://doi.org/10.1017/wet.2023.83","url":null,"abstract":"Abstract Herbicide resistance in weeds significantly threatens crop production in the United States. The introduction of dicamba-resistant soybean and cotton stacked with other herbicide tolerance traits has provided farmers with the flexibility to use multiple herbicide options to diversify their weed management practices and delay resistance evolution. XtendiMax ® herbicide with VaporGrip ® Technology is a dicamba formulation registered for use in dicamba-resistant soybean and cotton by the United States Environmental Protection Agency (US-EPA). One of the terms of its registration includes evaluating inquiries on reduced weed control efficacy by growers or users of XtendiMax for suspected weed resistance. A total of 3555 product performance inquiries (PPIs) were received from 2018 to 2021 regarding reduced weed control efficacy by dicamba. Following Norsworthy criteria recommended by US-EPA, for screening of suspected resistance in the field, a total of 103 weed accessions from sixty-three counties in 13 states were collected for greenhouse testing over those 4 years. Collection of weed accession(s) for greenhouse testing was made only in states where resistance to dicamba was not yet confirmed in the weed species under investigation. The accessions, which consisted primarily of waterhemp and Palmer amaranth, were treated with dicamba at 560g ae ha -1 and 1120g ae ha -1 rates. All weed accessions except for an accession each of Palmer amaranth and waterhemp, were controlled ≥90% by dicamba at 21 days after treatment in the greenhouse.","PeriodicalId":23710,"journal":{"name":"Weed Technology","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135635375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Casey H. Arnold, Jason K. Norsworthy, Thomas R. Butts, Trenton L. Roberts, Nick R. Bateman, Chad W Shelton
Abstract Control of barnyardgrass is becoming increasingly difficult as plants evolve resistance to herbicides. ROXY oxyfluorfen-resistant rice (ROXY ® Rice Production System) has been developed to allow for an alternative mode of action to control barnyardgrass and other weeds. In 2021 and 2022, field trials were conducted at the Pine Tree Research Station near Colt, AR, the Northeast Research and Extension Center in Keiser, AR, and the University of Arkansas Pine Bluff Small Farm Research Center near Lonoke, AR to determine the level of weed control and crop tolerance following oxyfluorfen applied preemergence or postemergence relative to herbicides currently labeled for use in rice. When applied post-plant preemergence on silt loam soil, oxyfluorfen alone at 1,120 and 1,680 g ai ha -1 resulted in barnyardgrass control comparable to clomazone alone at 336 g ha -1 . Still, injury to rice was often greater than with clomazone, ranging from 20% to 45%. On clay soil, oxyfluorfen at 1,680 g ha -1 resulted in barnyardgrass control comparable to clomazone alone in both site-years at three weeks after emergence but caused up to 18% injury to rice. When oxyfluorfen was applied at 560 to 1,680 g ha -1 at the 2-leaf rice growth stage, barnyardgrass control was ≥85% in three of four site-years one week after treatment. However, injury to rice ranged from 38% to 73% for the rates evaluated. Propanil caused the greatest injury by a herbicide currently labeled for use in rice at 34%. Oxyfluorfen should be used as a post-plant preemergence herbicide rather than a postemergence herbicide due to the injury observed after a postemergence application. The data indicates that if used as a preemergence herbicide, oxyfluorfen should be applied at 560 g ha -1 to reduce the injury observed on silt loam and clay soils.
摘要随着植物对除草剂产生抗性，稗草的防治变得越来越困难。ROXY抗氟氧虫水稻(ROXY®水稻生产系统)已经开发，允许一种替代的行动模式来控制谷仓草和其他杂草。2021年和2022年，在阿拉斯加州柯尔特附近的松树研究站、阿拉斯加州凯泽的东北研究和推广中心以及阿拉斯加州洛诺克附近的阿肯色大学松布拉夫小农场研究中心进行了田间试验，以确定相对于目前标记用于水稻的除草剂，在苗期前或苗期后施用氟氧芬后的杂草控制水平和作物耐受性。在粉质壤土上，在种植后未发芽时单独施用1,120和1,680克氟虫芬，其对稗草的控制效果与单独施用336克氯马酮相当。尽管如此，对水稻的伤害往往比氯马酮更大，从20%到45%不等。在粘土上，1 680 g ha -1氟氧芬在苗期3周后对两个地点年的稗草的防治效果与单独使用氯马酮相当，但对水稻造成高达18%的伤害。在2叶稻生育期施用560 ~ 1680 g ha -1的氟氧芬，4个立地年中有3个立地年的稗草防治率≥85%。然而，对水稻的伤害从38%到73%不等。丙烯造成的危害是目前标记用于水稻的除草剂中最大的，占34%。由于在苗期后使用后观察到的伤害，氟氧芬应该用作植物苗期前除草剂，而不是苗期后除草剂。数据表明，如果作为出苗前除草剂使用，氟氧菊酯的施用量应为560克/公顷，以减少在粉质壤土和粘土上观察到的危害。
{"title":"Effectiveness of Preemergence- and Postemergence-Applied Oxyfluorfen in Rice Compared to Current Standards","authors":"Casey H. Arnold, Jason K. Norsworthy, Thomas R. Butts, Trenton L. Roberts, Nick R. Bateman, Chad W Shelton","doi":"10.1017/wet.2023.84","DOIUrl":"https://doi.org/10.1017/wet.2023.84","url":null,"abstract":"Abstract Control of barnyardgrass is becoming increasingly difficult as plants evolve resistance to herbicides. ROXY oxyfluorfen-resistant rice (ROXY ® Rice Production System) has been developed to allow for an alternative mode of action to control barnyardgrass and other weeds. In 2021 and 2022, field trials were conducted at the Pine Tree Research Station near Colt, AR, the Northeast Research and Extension Center in Keiser, AR, and the University of Arkansas Pine Bluff Small Farm Research Center near Lonoke, AR to determine the level of weed control and crop tolerance following oxyfluorfen applied preemergence or postemergence relative to herbicides currently labeled for use in rice. When applied post-plant preemergence on silt loam soil, oxyfluorfen alone at 1,120 and 1,680 g ai ha -1 resulted in barnyardgrass control comparable to clomazone alone at 336 g ha -1 . Still, injury to rice was often greater than with clomazone, ranging from 20% to 45%. On clay soil, oxyfluorfen at 1,680 g ha -1 resulted in barnyardgrass control comparable to clomazone alone in both site-years at three weeks after emergence but caused up to 18% injury to rice. When oxyfluorfen was applied at 560 to 1,680 g ha -1 at the 2-leaf rice growth stage, barnyardgrass control was ≥85% in three of four site-years one week after treatment. However, injury to rice ranged from 38% to 73% for the rates evaluated. Propanil caused the greatest injury by a herbicide currently labeled for use in rice at 34%. Oxyfluorfen should be used as a post-plant preemergence herbicide rather than a postemergence herbicide due to the injury observed after a postemergence application. The data indicates that if used as a preemergence herbicide, oxyfluorfen should be applied at 560 g ha -1 to reduce the injury observed on silt loam and clay soils.","PeriodicalId":23710,"journal":{"name":"Weed Technology","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135633984","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract Herbicide resistance coupled with a dearth of selective herbicide options has increased complexity of annual bluegrass control in hybrid bermudagrass putting greens. Cumyluron, endothall, and methiozolin are herbicides that have controlled annual bluegrass by inhibiting sites of action that are novel compared to herbicides currently used for turfgrass management in the US. However, peer-reviewed literature has no information on hybrid bermudagrass putting green tolerance to these herbicides. Sixteen field studies were established on eight golf greens in Midlothian, VA, in 2021 and 2022 to evaluate effects of cumyluron, endothall, methiozolin, pronamide and trifloxysulfuron on bermudagrass spring transition. The 16 studies were split equally between initiation during full dormancy versus mid-spring transition. Methiozolin applied at 500 and 1000 g ai ha -1 typically increased the heat units (growing degree days with a base temperature of 15 C) required for hybrid bermudagrass to visibly achieve 90% green coverage (T 90 ) when applied to fully dormant hybrid bermudagrass. This delay in green coverage was more pronounced at sites where hybrid bermudagrass vigor was seemingly reduced via abiotic stressors. Endothall was generally more injurious than all other treatments when applied to hybrid bermudagrass during mid-transition. Endothall applied at 840 g ai ha -1 injured hybrid bermudagrass for 0 to 9 d over a threshold of 30% (DOT 30 ), depending on location. In two site-years characterized by increased abiotic stress, methiozolin applied at 1000 g ai ha -1 caused 44 DOT 30 . Cumyluron never injured hybrid bermudagrass over 30% or delayed T 90 regardless of application timing. These results indicate methiozolin should only be applied within labeled rates to actively growing hybrid bermudagrass putting greens, cumyluron can be safely applied at 6450 g ai ha -1 on dormant or actively growing bermudagrass greens, and endothall applications should be limited to dormant bermudagrass greens unless transient phytotoxicity is acceptable.
除草剂抗性加上选择性除草剂选择的缺乏增加了杂交百慕大草推杆果岭蓝草年度控制的复杂性。Cumyluron, endothall和methiozolin是通过抑制作用位点来控制一年生蓝草的除草剂，与目前在美国用于草坪草管理的除草剂相比，这些除草剂是新颖的。然而，同行评议的文献没有关于杂交百慕草对这些除草剂产生绿色耐受性的信息。本研究于2021年和2022年在弗吉尼亚州Midlothian的8个高尔夫球场进行了16项田间研究，评价了cumyluron、endothall、methiozolin、pronamide和trifloxy磺隆对百慕大草春季过渡的影响。这16项研究在完全休眠和春季中期过渡期间平均分配。当施用于完全休眠的杂交百慕大草时，施用500和1000 g / ha -1的甲硫唑啉通常会增加所需的热量单位(基础温度为15℃的生长度日)，以明显达到90%的绿色覆盖(t90)。这种绿色覆盖的延迟在杂交百慕大草活力似乎因非生物胁迫而减少的地点更为明显。在杂交百慕草过渡中期施用恩度唑的危害大于其他所有处理。根据不同的位置，施用840 g / h的Endothall，在30%的阈值(DOT 30)下，持续0至9 d。在以非生物胁迫增加为特征的两个站点年中，施用1000 g / ha -1的甲氧唑啉导致44 DOT 30。无论施用时间如何，Cumyluron对杂交百慕草的伤害均未超过30%或延迟T 90。综上所述，甲氧唑啉只能在标记的剂量范围内施用于活跃生长的杂交百慕草果岭，cumyluron在休眠或活跃生长的百慕草果岭上施用6450 g / ha -1是安全的，除非可以接受短暂的植物毒性，否则应限制在休眠的百慕草果岭上施用。
{"title":"Herbicide effects on dormant and post-dormant hybrid bermudagrass putting green turf","authors":"John M Peppers, Shawn D Askew","doi":"10.1017/wet.2023.65","DOIUrl":"https://doi.org/10.1017/wet.2023.65","url":null,"abstract":"Abstract Herbicide resistance coupled with a dearth of selective herbicide options has increased complexity of annual bluegrass control in hybrid bermudagrass putting greens. Cumyluron, endothall, and methiozolin are herbicides that have controlled annual bluegrass by inhibiting sites of action that are novel compared to herbicides currently used for turfgrass management in the US. However, peer-reviewed literature has no information on hybrid bermudagrass putting green tolerance to these herbicides. Sixteen field studies were established on eight golf greens in Midlothian, VA, in 2021 and 2022 to evaluate effects of cumyluron, endothall, methiozolin, pronamide and trifloxysulfuron on bermudagrass spring transition. The 16 studies were split equally between initiation during full dormancy versus mid-spring transition. Methiozolin applied at 500 and 1000 g ai ha -1 typically increased the heat units (growing degree days with a base temperature of 15 C) required for hybrid bermudagrass to visibly achieve 90% green coverage (T 90 ) when applied to fully dormant hybrid bermudagrass. This delay in green coverage was more pronounced at sites where hybrid bermudagrass vigor was seemingly reduced via abiotic stressors. Endothall was generally more injurious than all other treatments when applied to hybrid bermudagrass during mid-transition. Endothall applied at 840 g ai ha -1 injured hybrid bermudagrass for 0 to 9 d over a threshold of 30% (DOT 30 ), depending on location. In two site-years characterized by increased abiotic stress, methiozolin applied at 1000 g ai ha -1 caused 44 DOT 30 . Cumyluron never injured hybrid bermudagrass over 30% or delayed T 90 regardless of application timing. These results indicate methiozolin should only be applied within labeled rates to actively growing hybrid bermudagrass putting greens, cumyluron can be safely applied at 6450 g ai ha -1 on dormant or actively growing bermudagrass greens, and endothall applications should be limited to dormant bermudagrass greens unless transient phytotoxicity is acceptable.","PeriodicalId":23710,"journal":{"name":"Weed Technology","volume":"6 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135405829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Laura Pineda-Bermudez, Thierry E. Besançon, Lynn M. Sosnoskie
Abstract In 2021 and 2022, research was initiated to evaluate the efficacy and safety of sulfentrazone in transplanted cabbage and broccoli. Treatments included oxyfluorfen at 560 g ha -1 pre-transplant (PRE-T), sulfentrazone at 116 or 233 g ha -1 PRE-T, and S -metolachlor at 715 g ha -1 immediately applied after transplanting (POST-T) followed by (fb) oxyfluorfen at 210 g ha -1 postemergence (POST) 14 d after planting (DAP). Concerning weed cover, the weedy non-treated plots averaged between 6% (14 DAP) and 72% (42 DAP); all herbicide-treated plots averaged less than 30% cover at 42 DAP. At 14 and 28 DAP, oxyfluorfen, S –metolachlor fb oxyfluorfen, and sulfentrazone high rate reduced total monocotyledonous and dicotyledonous weed densities 62 and 100% relative to the non-treated control. Hairy galinsoga (NJ) and combined ladysthumb and prostrate knotweed (NY) density was reduced 71 to 99%. Except for the low rate of sulfentrazone, all herbicide treatments reduced weed biomass at harvest ≥ 88%. Crop injury varied in response to herbicide treatments or weed competition but was also affected by crop and location. Between 14 and 28 DAP, the greatest amount of stunting (22%) was noted in the S -metolachlor fb oxyfluorfen treatments for both locations. Averaged over treatments, greater stunting was observed in broccoli as compared to cabbage in NY, whereas stunting estimates were higher for cabbage in NJ. All NJ treatments significantly increased cabbage yield and broccoli and cabbage head sizes relative to the non-treated control. No yield difference was noted between herbicide treatments and the non-treated check in NY. Data derived from these studies will be used to enhance crop safety recommendations in Northeast production environments for sulfentrazone used PRE in transplanted cabbage and support a potential label for broccoli.
在2021年和2022年，研究人员开始评估磺胺酮在移栽卷心菜和西兰花中的有效性和安全性。处理包括:移栽前(PRE-T)用量为560 g ha -1的氟氧芬，预t前用量为116或233 g ha -1的磺胺酮，移栽后立即施用715 g ha -1的S -异甲草胺(POST- t)，以及移栽后14天(DAP)出苗后(POST)用量为210 g ha -1的氟氧芬(fb)。杂草覆盖方面，未处理地块平均在6% (14 DAP) ~ 72% (42 DAP)之间;在42 DAP时，所有除草剂处理地块的平均覆盖率均低于30%。在14和28 DAP时，与未处理的对照相比，氟氧虫、S -甲氧草胺、氟氧虫和磺胺酮的单子叶和双子叶总杂草密度分别降低了62%和100%。毛毛猫尾草(NJ)和双叶虎尾草(NY)的密度降低71 ~ 99%。除磺胺酮的使用率较低外，所有除草剂处理均使收获期杂草生物量减少≥88%。作物伤害不仅受除草剂处理和杂草竞争的影响，还受作物和地理位置的影响。在14至28 DAP之间，S -甲草胺和氟氧芬处理的发育迟缓率最高(22%)。平均来看，在纽约州，西兰花的发育迟缓比卷心菜更严重，而在新泽西州，卷心菜的发育迟缓估计更高。与未处理对照相比，所有NJ处理均显著提高了白菜产量、西兰花和白菜头大小。在纽约除草剂处理和未处理的对照间没有发现产量差异。从这些研究中获得的数据将用于在东北生产环境中加强作物安全建议，在移栽卷心菜中使用PRE的磺胺曲酮，并支持西兰花的潜在标签。
{"title":"Sulfentrazone Crop Safety and Efficacy in Cabbage and Broccoli","authors":"Laura Pineda-Bermudez, Thierry E. Besançon, Lynn M. Sosnoskie","doi":"10.1017/wet.2023.75","DOIUrl":"https://doi.org/10.1017/wet.2023.75","url":null,"abstract":"Abstract In 2021 and 2022, research was initiated to evaluate the efficacy and safety of sulfentrazone in transplanted cabbage and broccoli. Treatments included oxyfluorfen at 560 g ha -1 pre-transplant (PRE-T), sulfentrazone at 116 or 233 g ha -1 PRE-T, and S -metolachlor at 715 g ha -1 immediately applied after transplanting (POST-T) followed by (fb) oxyfluorfen at 210 g ha -1 postemergence (POST) 14 d after planting (DAP). Concerning weed cover, the weedy non-treated plots averaged between 6% (14 DAP) and 72% (42 DAP); all herbicide-treated plots averaged less than 30% cover at 42 DAP. At 14 and 28 DAP, oxyfluorfen, S –metolachlor fb oxyfluorfen, and sulfentrazone high rate reduced total monocotyledonous and dicotyledonous weed densities 62 and 100% relative to the non-treated control. Hairy galinsoga (NJ) and combined ladysthumb and prostrate knotweed (NY) density was reduced 71 to 99%. Except for the low rate of sulfentrazone, all herbicide treatments reduced weed biomass at harvest ≥ 88%. Crop injury varied in response to herbicide treatments or weed competition but was also affected by crop and location. Between 14 and 28 DAP, the greatest amount of stunting (22%) was noted in the S -metolachlor fb oxyfluorfen treatments for both locations. Averaged over treatments, greater stunting was observed in broccoli as compared to cabbage in NY, whereas stunting estimates were higher for cabbage in NJ. All NJ treatments significantly increased cabbage yield and broccoli and cabbage head sizes relative to the non-treated control. No yield difference was noted between herbicide treatments and the non-treated check in NY. Data derived from these studies will be used to enhance crop safety recommendations in Northeast production environments for sulfentrazone used PRE in transplanted cabbage and support a potential label for broccoli.","PeriodicalId":23710,"journal":{"name":"Weed Technology","volume":"4 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135368190","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Maria Leticia Zaccaro-Gruener, Jason K. Norsworthy, Leonard B Piveta, L. Tom Barber, Andy Mauromoustakos, Thomas C. Mueller, Trenton L. Roberts
Abstract Investigations of the relevance of low tunnel methodology and air sampling concerning the off-target movement of dicamba were conducted from 2018 to 2022, focused primarily on volatility. This research, divided into three experiments, evaluated the impact of herbicides and adjuvants added to dicamba and the type of surface treated on dicamba volatility. Treatment combinations included glyphosate and glufosinate, the presence of a simulated contamination rate of ammonium sulfate (AMS), the benefit of a volatility reduction agent (VRA), and a vegetated (dicamba-resistant cotton) or soil surface treated with dicamba. Volatility assessments included air sampling collected over 48 h. Dicamba treatments were applied four times to each of two bare soil or cotton trays and placed inside the tunnels. The extraction and quantification of dicamba from air samples were conducted. Field assessments included the maximum and average visible injury in bioindicator soybean and the lateral movement of dicamba damage expressed by the furthest distance from the center of the plots to the position in which plants had 5% injury. Adding glufosinate and glyphosate to dicamba increased the dicamba amount in air samples. A simulated tank contamination rate of AMS (0.005% v/v) did not impact dicamba emissions compared to a treatment lacking AMS. Adding a VRA reduced dicamba in air samples by 70% compared to treatment without the adjuvant. Dicamba treatments applied on vegetation generally produced greater amounts of dicamba detected than treatments applied to bare soil. Field assessment results usually followed differences in dicamba concentration by treatments tested. Results showed that low tunnel methodology allowed simultaneous comparisons of several treatment combinations concerning dicamba volatility.
{"title":"Use of Low Tunnels to Describe Effects of Herbicide, Adjuvant, and Target Surface on Dicamba Volatility","authors":"Maria Leticia Zaccaro-Gruener, Jason K. Norsworthy, Leonard B Piveta, L. Tom Barber, Andy Mauromoustakos, Thomas C. Mueller, Trenton L. Roberts","doi":"10.1017/wet.2023.74","DOIUrl":"https://doi.org/10.1017/wet.2023.74","url":null,"abstract":"Abstract Investigations of the relevance of low tunnel methodology and air sampling concerning the off-target movement of dicamba were conducted from 2018 to 2022, focused primarily on volatility. This research, divided into three experiments, evaluated the impact of herbicides and adjuvants added to dicamba and the type of surface treated on dicamba volatility. Treatment combinations included glyphosate and glufosinate, the presence of a simulated contamination rate of ammonium sulfate (AMS), the benefit of a volatility reduction agent (VRA), and a vegetated (dicamba-resistant cotton) or soil surface treated with dicamba. Volatility assessments included air sampling collected over 48 h. Dicamba treatments were applied four times to each of two bare soil or cotton trays and placed inside the tunnels. The extraction and quantification of dicamba from air samples were conducted. Field assessments included the maximum and average visible injury in bioindicator soybean and the lateral movement of dicamba damage expressed by the furthest distance from the center of the plots to the position in which plants had 5% injury. Adding glufosinate and glyphosate to dicamba increased the dicamba amount in air samples. A simulated tank contamination rate of AMS (0.005% v/v) did not impact dicamba emissions compared to a treatment lacking AMS. Adding a VRA reduced dicamba in air samples by 70% compared to treatment without the adjuvant. Dicamba treatments applied on vegetation generally produced greater amounts of dicamba detected than treatments applied to bare soil. Field assessment results usually followed differences in dicamba concentration by treatments tested. Results showed that low tunnel methodology allowed simultaneous comparisons of several treatment combinations concerning dicamba volatility.","PeriodicalId":23710,"journal":{"name":"Weed Technology","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136112522","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Olivia M. Noorenberghe, Peter H. Sikkema, Michael J. Cowbrough, David C. Hooker, Nader Soltani, François J. Tardif
Abstract Herbicides are often used to terminate cover crops. Producers would like to use herbicides that work quickly, are effective, and do not increase the risk of selecting herbicide-resistant weeds. Eight experiments were conducted to determine if mixing glyphosate (900 g a.e. ha -1 ) with rimsulfuron (15 g a.i. ha -1 ), mesotrione (100 g a.i. ha -1 ), or rimsulfuron + mesotrione enhances winter rye control and to ascertain if using urea ammonium nitrate (UAN) as the herbicide carrier improves and accelerates herbicide efficacy. Winter rye control was assessed 1, 2, 3, and 4 weeks after application (WAA) and biomass was measured 4 WAA. The addition of rimsulfuron, mesotrione, or rimsulfuron + mesotrione to glyphosate did not enhance winter rye control. Similarly, using UAN as the herbicide carrier did not improve or accelerate herbicide efficacy. Glyphosate alone provided the highest level of winter rye control. The addition of rimsulfuron, mesotrione, or rimsulfuron + mesotrione to glyphosate did not increase the level or speed of control. However, mixing glyphosate with rimsulfuron, mesotrione, or rimsulfuron + mesotrione adds other modes of action without compromising winter rye control.
除草剂常用于覆盖作物。生产者希望使用起效快、有效且不会增加选择抗除草剂杂草风险的除草剂。通过8项试验，确定草甘膦(900 g a.i. ha -1)与环磺隆(15 g a.i. ha -1)、美索三酮(100 g a.i. ha -1)或环磺隆+美索三酮混合是否能加强对冬季黑麦的控制，并确定硝酸铵脲(UAN)作为除草剂载体是否能提高和加速除草剂药效。施药后1、2、3和4周(WAA)评价黑麦的防治效果，4周测定生物量。在草甘膦中添加利姆磺隆、中硝磺隆或利姆磺隆+中硝磺隆对冬季黑麦防治效果不显著。同样，使用UAN作为除草剂载体并没有提高或加速除草剂的药效。单独使用草甘膦对冬季黑麦的防治效果最好。在草甘膦中加入利姆磺隆、美索三酮或利姆磺隆+美索三酮并没有提高控制的水平或速度。然而，将草甘膦与利姆磺隆、中硝磺隆或利姆磺隆+中硝磺隆混合会增加其他作用模式，而不会影响对冬季黑麦的控制。
{"title":"Enhancing Winter Rye Termination by Mixing Glyphosate with Other Herbicides Using Water or UAN as the Carrier","authors":"Olivia M. Noorenberghe, Peter H. Sikkema, Michael J. Cowbrough, David C. Hooker, Nader Soltani, François J. Tardif","doi":"10.1017/wet.2023.73","DOIUrl":"https://doi.org/10.1017/wet.2023.73","url":null,"abstract":"Abstract Herbicides are often used to terminate cover crops. Producers would like to use herbicides that work quickly, are effective, and do not increase the risk of selecting herbicide-resistant weeds. Eight experiments were conducted to determine if mixing glyphosate (900 g a.e. ha -1 ) with rimsulfuron (15 g a.i. ha -1 ), mesotrione (100 g a.i. ha -1 ), or rimsulfuron + mesotrione enhances winter rye control and to ascertain if using urea ammonium nitrate (UAN) as the herbicide carrier improves and accelerates herbicide efficacy. Winter rye control was assessed 1, 2, 3, and 4 weeks after application (WAA) and biomass was measured 4 WAA. The addition of rimsulfuron, mesotrione, or rimsulfuron + mesotrione to glyphosate did not enhance winter rye control. Similarly, using UAN as the herbicide carrier did not improve or accelerate herbicide efficacy. Glyphosate alone provided the highest level of winter rye control. The addition of rimsulfuron, mesotrione, or rimsulfuron + mesotrione to glyphosate did not increase the level or speed of control. However, mixing glyphosate with rimsulfuron, mesotrione, or rimsulfuron + mesotrione adds other modes of action without compromising winter rye control.","PeriodicalId":23710,"journal":{"name":"Weed Technology","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136112515","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Vera Vukovic, Clint M. Mattox, Alec R. Kowalewski, Brandon C. McNally, Cale A. Bigelow, Stephen L. Meyers, Jim T. Brosnan, Aaron J. Patton
Abstract The prolific seed production and polyploidy of annual bluegrass allow for the rapid development of herbicide resistance. Ethofumesate-resistant annual bluegrass plants were identified in the 1990s in grass seed production in Oregon but their prevalence and distribution are not well documented. Therefore, a dose-response experiment was initiated to determine the potential level of ethofumesate resistance in seed production systems. Seeds from 55 annual bluegrass populations were obtained from three sources: seed production fields (31 populations), seed cleaning process (6 populations), and seed testing lots prior to retail distribution (18 populations). Additionally, two populations, one with known ethofumesate resistance and one with known susceptibility, were identified in preliminary testing and used as controls in this experiment. Seed from each collected population was increased. Individual seedlings were then transplanted into separate cone-tainers, grown to a size of 2 to 3 tillers in the greenhouse, and then sprayed using a compressed air track spray chamber with ten doses of ethofumesate: 0, 0.56, 1.1, 2.8, 5.6, 8.4, 11.2, 16.8, 22.4, and 44.8 kg ai ha −1 ; with 0.84 to 2.2 kg ha −1 as the label application rates for perennial ryegrass. The resistant to susceptible ratio of populations across all sources ranged from 0.5 to 5.5. The most resistant populations found in production fields, seed cleaning, and seed testing lots had ED 50 values of 12.1, 9.4, and 13.1 kg ha −1 , respectively. Further, 68% of the populations found in production fields had the effective dose necessary to kill 50% of the population (ED 50 ) higher than 6 kg ha −1 , indicating common annual bluegrass resistance in grass seed production. As such, herbicides alone will likely be ineffective at controlling annual bluegrass, and integrated weed management strategies should be implemented by growers.
摘要一年生蓝草高产和多倍性为其抗除草剂能力的快速发展提供了条件。早在20世纪90年代，俄勒冈州的草籽生产中就发现了抗虫氟草酯的蓝草一年生植物，但它们的流行和分布并没有得到很好的记录。因此，开始了一项剂量反应试验，以确定种子生产系统中对乙氧膦酸盐的潜在抗性水平。55个蓝草一年生种群的种子，分别从种子生产场(31个种群)、种子清洗过程(6个种群)和种子零售前的试验场(18个种群)3个来源获得。此外，在初步试验中确定了两个种群，一个已知对乙硫马醋酯具有抗性，另一个已知对乙硫马醋酯具有敏感性，并将其作为本试验的对照。每个种群的种子数量都有所增加。然后将单株幼苗移栽到单独的容器中，在温室中生长到2 ~ 3分蘖大小，然后使用压缩空气轨道喷雾室喷洒10剂:0、0.56、1.1、2.8、5.6、8.4、11.2、16.8、22.4和44.8 kg / ha - 1;多年生黑麦草的标签施用量为0.84 ~ 2.2 kg ha - 1。各来源种群的抗感比为0.5 ~ 5.5。在生产田间、种子清洗场和种子试验场发现的抗性最强种群的ED 50值分别为12.1、9.4和13.1 kg ha - 1。此外，在生产田间发现的68%的种群，其有效剂量(ed50)高于6 kg ha - 1，杀死50%的种群所需的有效剂量(ed50)高于6 kg ha - 1，表明草种子生产中常见的年度蓝草抗性。因此，单独使用除草剂对一年生蓝草的控制可能是无效的，种植者应该实施综合杂草管理策略。
{"title":"Ethofumesate resistant annual bluegrass (<i>Poa annua</i>) in grass seed production systems","authors":"Vera Vukovic, Clint M. Mattox, Alec R. Kowalewski, Brandon C. McNally, Cale A. Bigelow, Stephen L. Meyers, Jim T. Brosnan, Aaron J. Patton","doi":"10.1017/wet.2023.68","DOIUrl":"https://doi.org/10.1017/wet.2023.68","url":null,"abstract":"Abstract The prolific seed production and polyploidy of annual bluegrass allow for the rapid development of herbicide resistance. Ethofumesate-resistant annual bluegrass plants were identified in the 1990s in grass seed production in Oregon but their prevalence and distribution are not well documented. Therefore, a dose-response experiment was initiated to determine the potential level of ethofumesate resistance in seed production systems. Seeds from 55 annual bluegrass populations were obtained from three sources: seed production fields (31 populations), seed cleaning process (6 populations), and seed testing lots prior to retail distribution (18 populations). Additionally, two populations, one with known ethofumesate resistance and one with known susceptibility, were identified in preliminary testing and used as controls in this experiment. Seed from each collected population was increased. Individual seedlings were then transplanted into separate cone-tainers, grown to a size of 2 to 3 tillers in the greenhouse, and then sprayed using a compressed air track spray chamber with ten doses of ethofumesate: 0, 0.56, 1.1, 2.8, 5.6, 8.4, 11.2, 16.8, 22.4, and 44.8 kg ai ha −1 ; with 0.84 to 2.2 kg ha −1 as the label application rates for perennial ryegrass. The resistant to susceptible ratio of populations across all sources ranged from 0.5 to 5.5. The most resistant populations found in production fields, seed cleaning, and seed testing lots had ED 50 values of 12.1, 9.4, and 13.1 kg ha −1 , respectively. Further, 68% of the populations found in production fields had the effective dose necessary to kill 50% of the population (ED 50 ) higher than 6 kg ha −1 , indicating common annual bluegrass resistance in grass seed production. As such, herbicides alone will likely be ineffective at controlling annual bluegrass, and integrated weed management strategies should be implemented by growers.","PeriodicalId":23710,"journal":{"name":"Weed Technology","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135854127","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Abstract The increasing development of herbicide resistance in weeds found in rice cropping systems has encouraged researchers to evaluate alternate herbicides to prevent and manage herbicide-resistant weed biotypes. Metribuzin is a photosynthetic-inhibiting herbicide that controls various important grass and broadleaf weeds. Several crops, including soybeans, wheat, peas, and potatoes, have shown differential varietal responses to metribuzin. To determine whether rice has differential varietal responses to metribuzin for potential utilization in a rice breeding program, greenhouse experiments were conducted to evaluate the responses of 142 long-, medium-, and short-grain rice genotypes to the herbicide. Metribuzin was applied at 0, 22, 44, 88, 176, and 352 g ai ha -1 when rice plants were in the three- to four-leaf stage. Crop response regarding phytotoxicity, height reduction, and biomass reduction was evaluated. Metribuzin caused significant injury to all rice genotypes tested, but short-grain rice genotypes were, on average, more susceptible than medium- and long-grain rice. Short-grain rice genotypes generally had greater height reduction and produced less biomass than long-grain or medium-grain rice genotypes. Crop visual injury ratings were correlated with plant height reductions and biomass reductions. The results indicate that the level of metribuzin tolerance in rice is inadequate for commercial use; however, further research is needed to develop higher levels of herbicide resistance by mutagenized rice cultivars.
随着水稻种植系统中除草剂抗性的增加，研究人员开始评估替代除草剂，以预防和管理具有除草剂抗性的杂草。甲曲霉嗪是一种抑制光合作用的除草剂，对多种重要的禾草和阔叶杂草具有抑制作用。几种作物，包括大豆、小麦、豌豆和土豆，对菊霉嗪表现出不同品种的反应。为了确定水稻品种对嘧霉嗪是否有不同的反应，以便在水稻育种计划中加以利用，我们进行了温室试验，评估了142个长粒、中粒和短粒水稻基因型对该除草剂的反应。在水稻三叶至四叶期分别施用0、22、44、88、176和352 g / ha -1。评估了作物对植物毒性、高度降低和生物量减少的反应。metrizzin对所有水稻基因型均有显著的伤害，但短粒水稻基因型平均比中粒和长粒水稻更敏感。与长粒和中粒水稻基因型相比，短粒水稻基因型总体上具有更大的高度降低和更少的生物量。作物视觉伤害等级与株高降低和生物量降低相关。结果表明，水稻耐嘧霉嗪水平不适合商业应用;然而，需要进一步的研究来开发更高水平的抗除草剂诱变水稻品种。
{"title":"Responses of Rice Genotypes to Foliar-Applied Metribuzin","authors":"Sarah L. Marsh, Kassim Al-Khatib","doi":"10.1017/wet.2023.76","DOIUrl":"https://doi.org/10.1017/wet.2023.76","url":null,"abstract":"Abstract The increasing development of herbicide resistance in weeds found in rice cropping systems has encouraged researchers to evaluate alternate herbicides to prevent and manage herbicide-resistant weed biotypes. Metribuzin is a photosynthetic-inhibiting herbicide that controls various important grass and broadleaf weeds. Several crops, including soybeans, wheat, peas, and potatoes, have shown differential varietal responses to metribuzin. To determine whether rice has differential varietal responses to metribuzin for potential utilization in a rice breeding program, greenhouse experiments were conducted to evaluate the responses of 142 long-, medium-, and short-grain rice genotypes to the herbicide. Metribuzin was applied at 0, 22, 44, 88, 176, and 352 g ai ha -1 when rice plants were in the three- to four-leaf stage. Crop response regarding phytotoxicity, height reduction, and biomass reduction was evaluated. Metribuzin caused significant injury to all rice genotypes tested, but short-grain rice genotypes were, on average, more susceptible than medium- and long-grain rice. Short-grain rice genotypes generally had greater height reduction and produced less biomass than long-grain or medium-grain rice genotypes. Crop visual injury ratings were correlated with plant height reductions and biomass reductions. The results indicate that the level of metribuzin tolerance in rice is inadequate for commercial use; however, further research is needed to develop higher levels of herbicide resistance by mutagenized rice cultivars.","PeriodicalId":23710,"journal":{"name":"Weed Technology","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135855335","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
An abstract is not available for this content so a preview has been provided. Please use the Get access link above for information on how to access this content.
此内容的摘要不可用，因此提供了预览。有关如何访问此内容的信息，请使用上面的获取访问链接。
{"title":"The First Weed Management Textbook in the United States (Part 2)","authors":"John Byrd, David Russell, Kayla Broster","doi":"10.1017/wet.2023.77","DOIUrl":"https://doi.org/10.1017/wet.2023.77","url":null,"abstract":"An abstract is not available for this content so a preview has been provided. Please use the Get access link above for information on how to access this content.","PeriodicalId":23710,"journal":{"name":"Weed Technology","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135970121","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：