A. Ahmed, J. Kurian, S. Satyanarayana, Vijayakumar Raghavan
*Corresponding author e-mail: Ahmed.ahmed@mail.mcgill.ca A b s t r a c t. The addition of biochar is often proposed to increase agricultural soil quality and crop yield, while at the same time sequestering carbon from the atmosphere to help mitigate global climate change. In this research, the pore-size distribution, and saturated hydraulic conductivity of sandy loam and clay loam soils amended with varying dosages (0-10% dry basis) and two different particle sizes (0.5-420 μm (PS1) or 421-841 μm (PS2)) of wood-derived biochar were investigated under compacted conditions (5, 10, or 15 standard Proctor rammer blows (5B, 10B, or 15B, respectively)). In the 5B compacted SL (SL-5B) soil, the volume of the soil fissures and transmission pores decreased, while the volume of the storage pores (SP) increased with increasing wood-derived biochar dosage. 23.1±0.9% of the volume of the 5B compacted clay loam (CL-5B) are storage pores, this value increased to 27.4±2.0% upon amendment with 10% PS1. The saturated hydraulic conductivity of the sandy loam-5B soil amended with 10% PS1 decreased from 6.8±0.3 to 0.80±0.03 mm h. The sandy loam farmland C emissions decreased by 0.071 tC ha y, whereas CL farmland C emissions decreased by 0.091 tC ha y. K e y w o r d s: soil biochar mixture, water retention, pore-size distribution, hydraulic conductivity, carbon sequestration
*通讯作者e-mail: Ahmed.ahmed@mail.mcgill.ca A b st r A c t.添加生物炭通常被提议用于提高农业土壤质量和作物产量，同时从大气中隔离碳，以帮助减缓全球气候变化。在本研究中，研究了不同剂量(0-10%干基)和两种不同粒径(0.5-420 μm (PS1)或421-841 μm (PS2))的沙质壤土和粘土壤土在压实条件下(5、10或15个标准Proctor夯击(分别为5B、10B或15B))的孔隙大小分布和饱和水力导电性。在5B压实SL (SL-5B)土壤中，随着木源生物炭用量的增加，土壤裂缝和透射孔的体积减小，而储存孔的体积增大。5B压实黏土壤土(CL-5B)的储孔隙占其体积的23.1±0.9%，添加10% PS1后，储孔隙占其体积的27.4±2.0%。添加10% PS1的沙壤土- 5b土壤的饱和水导率从6.8±0.3 mm h下降到0.80±0.03 mm h，沙壤土农田碳排放减少0.071 tC / h, CL农田碳排放减少0.091 tC / h，土壤生物炭混合、保水、孔隙大小分布、水导率、固碳等因素对土壤碳排放的影响显著
{"title":"Impact of wood-derived biochar on the hydraulic characteristics of compacted soils: Its influence on simulated farmland carbon sequestration","authors":"A. Ahmed, J. Kurian, S. Satyanarayana, Vijayakumar Raghavan","doi":"10.31545/INTAGR/135898","DOIUrl":"https://doi.org/10.31545/INTAGR/135898","url":null,"abstract":"*Corresponding author e-mail: Ahmed.ahmed@mail.mcgill.ca A b s t r a c t. The addition of biochar is often proposed to increase agricultural soil quality and crop yield, while at the same time sequestering carbon from the atmosphere to help mitigate global climate change. In this research, the pore-size distribution, and saturated hydraulic conductivity of sandy loam and clay loam soils amended with varying dosages (0-10% dry basis) and two different particle sizes (0.5-420 μm (PS1) or 421-841 μm (PS2)) of wood-derived biochar were investigated under compacted conditions (5, 10, or 15 standard Proctor rammer blows (5B, 10B, or 15B, respectively)). In the 5B compacted SL (SL-5B) soil, the volume of the soil fissures and transmission pores decreased, while the volume of the storage pores (SP) increased with increasing wood-derived biochar dosage. 23.1±0.9% of the volume of the 5B compacted clay loam (CL-5B) are storage pores, this value increased to 27.4±2.0% upon amendment with 10% PS1. The saturated hydraulic conductivity of the sandy loam-5B soil amended with 10% PS1 decreased from 6.8±0.3 to 0.80±0.03 mm h. The sandy loam farmland C emissions decreased by 0.071 tC ha y, whereas CL farmland C emissions decreased by 0.091 tC ha y. K e y w o r d s: soil biochar mixture, water retention, pore-size distribution, hydraulic conductivity, carbon sequestration","PeriodicalId":13959,"journal":{"name":"International Agrophysics","volume":"35 1","pages":"167-177"},"PeriodicalIF":2.2,"publicationDate":"2021-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46278388","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Subsoil compaction of a clay soil in South-East Norway and its amelioration after 5 years","authors":"T. Seehusen, A. Mordhorst, R. Riggert, H. Fleige, R. Horn, H. Riley","doi":"10.31545/INTAGR/135513","DOIUrl":"https://doi.org/10.31545/INTAGR/135513","url":null,"abstract":"soil, structural regeneration, minimum tillage, conventional tillage","PeriodicalId":13959,"journal":{"name":"International Agrophysics","volume":"35 1","pages":"145-157"},"PeriodicalIF":2.2,"publicationDate":"2021-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43141630","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ali Pahlevani, H. Ebrahimian, F. Abbasi, H. Fujimaki
*Corresponding author e-mail: ebrahimian@ut.ac.ir A b s t r a c t. The use of plastic mulch in furrow irrigation increases irrigation efficiency and improves crop yield. In this study, the effect of the placement of plastic mulch on the furrows and/or on the ridges on reducing water loss and nitrate leaching for furrow-fertigated maize was investigated. Field experiments were carried out including four different treatments which differed according to the placement of plastic mulch on a clay loam soil: plastic mulch on the ridge, plastic mulch on the furrow bed, plastic mulch on the ridge and the furrow bed and control treatment without the mulch. The HYDRUS-2D model was used to simulate water movement and nitrate transfer within the soil. The HYDRUS-2D model was well calibrated and validated using field data. Three irrigation scenarios were also compared including 125, 100 and 75% of the crop water requirement. In the case of using mulch and full irrigation (i.e. 100% crop water requirement), nitrate losses compared to the control treatment with 25% over-irrigation decreased by 52, 44, and 30%, in the the treatments of mulch on the furrow bed, mulch on the ridge and mulch on the ridge and the furrow bed, respectively. Deep percolation of irrigation water also decreased by 53, 48, and 41%, respectively. The use of plastic mulch on the furrow bed with less irrigation depth could be used to prevent water and nitrate losses in furrow irrigation.
*通讯作者e-mail: ebrahimian@ut.ac.ir A b st r A c t。地膜在沟灌中的应用提高了灌溉效率，提高了作物产量。本试验研究了垄沟覆盖和垄沟覆盖对减少沟肥玉米水分流失和硝酸盐淋失的影响。在粘土壤土上进行了四种不同地膜处理:垄上地膜、沟床地膜、垄上地膜和沟床地膜以及不覆盖地膜的对照处理。采用HYDRUS-2D模型模拟土壤中的水分运动和硝酸盐迁移。HYDRUS-2D模型通过现场数据进行了很好的校准和验证。还比较了三种灌溉方案，分别为作物需水量的125、100和75%。在覆盖和充分灌溉(即100%作物需水量)的情况下，与过量灌溉25%的对照处理相比，沟床覆盖、垄上覆盖和垄上覆盖和沟床覆盖的硝酸盐损失分别减少了52%、44%和30%。灌溉水深渗量也分别减少了53%、48%和41%。在灌溉深度较浅的沟床上覆盖地膜可以有效地防止沟灌水分和硝酸盐的流失。
{"title":"Distribution of soil water and nitrate in furrow irrigation under different plastic mulch placement conditions for a maize crop: Field and modelling study","authors":"Ali Pahlevani, H. Ebrahimian, F. Abbasi, H. Fujimaki","doi":"10.31545/INTAGR/135338","DOIUrl":"https://doi.org/10.31545/INTAGR/135338","url":null,"abstract":"*Corresponding author e-mail: ebrahimian@ut.ac.ir A b s t r a c t. The use of plastic mulch in furrow irrigation increases irrigation efficiency and improves crop yield. In this study, the effect of the placement of plastic mulch on the furrows and/or on the ridges on reducing water loss and nitrate leaching for furrow-fertigated maize was investigated. Field experiments were carried out including four different treatments which differed according to the placement of plastic mulch on a clay loam soil: plastic mulch on the ridge, plastic mulch on the furrow bed, plastic mulch on the ridge and the furrow bed and control treatment without the mulch. The HYDRUS-2D model was used to simulate water movement and nitrate transfer within the soil. The HYDRUS-2D model was well calibrated and validated using field data. Three irrigation scenarios were also compared including 125, 100 and 75% of the crop water requirement. In the case of using mulch and full irrigation (i.e. 100% crop water requirement), nitrate losses compared to the control treatment with 25% over-irrigation decreased by 52, 44, and 30%, in the the treatments of mulch on the furrow bed, mulch on the ridge and mulch on the ridge and the furrow bed, respectively. Deep percolation of irrigation water also decreased by 53, 48, and 41%, respectively. The use of plastic mulch on the furrow bed with less irrigation depth could be used to prevent water and nitrate losses in furrow irrigation.","PeriodicalId":13959,"journal":{"name":"International Agrophysics","volume":"35 1","pages":"131-144"},"PeriodicalIF":2.2,"publicationDate":"2021-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46263065","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
*Corresponding author e-mail: sumin.kim@dankook.ac.kr **This work was supported by KEPCO Research Institute and by the Dongguk University Research Fund of 2020. A b s t r a c t. As population rises, more people need to be fed. With increasing income, the potential exists for increases in the demand for cereals (i.e., barley). Since barley has a high level of tolerance to environmental stressors, this crop has been recommended as a potential crop for food security in marginal environments. In this study, a crop growth Agricultural Land Management Alternatives with Numerical Assessment Criteria model, was parameterized and used to simulate the yields of two barley types grown in a temperate environment at a latitude of 35°N. In order to apply this crop model to barley, 19 years of field data were used to model calibration and validation. As a result, the ALMANAC model accurately simulated yields for both barley types. The validated model was used to predict yields under three diverse seasonal rainfall scenarios associated with different patterns of the Central Pacific El Niño influence. According to the simulation results, excessively high seasonal rainfall decreased barley yields. Crop price and annual revenue of the two barley types were also evaluated using a non-linear regression model. For the malt type, the food price was higher with a higher rainfall, while naked barley had a higher revenue under the conditions of a lower rainfall. K e y w o r d s: barley, rainfall, simulation, food cost, grain yield
{"title":"Simulated impacts of rainfall extremes on yield responses of various barley varieties in a temperate region","authors":"Chang Yong Yoon, Sojung Kim, K. An, Sumin Kim","doi":"10.31545/INTAGR/134142","DOIUrl":"https://doi.org/10.31545/INTAGR/134142","url":null,"abstract":"*Corresponding author e-mail: sumin.kim@dankook.ac.kr **This work was supported by KEPCO Research Institute and by the Dongguk University Research Fund of 2020. A b s t r a c t. As population rises, more people need to be fed. With increasing income, the potential exists for increases in the demand for cereals (i.e., barley). Since barley has a high level of tolerance to environmental stressors, this crop has been recommended as a potential crop for food security in marginal environments. In this study, a crop growth Agricultural Land Management Alternatives with Numerical Assessment Criteria model, was parameterized and used to simulate the yields of two barley types grown in a temperate environment at a latitude of 35°N. In order to apply this crop model to barley, 19 years of field data were used to model calibration and validation. As a result, the ALMANAC model accurately simulated yields for both barley types. The validated model was used to predict yields under three diverse seasonal rainfall scenarios associated with different patterns of the Central Pacific El Niño influence. According to the simulation results, excessively high seasonal rainfall decreased barley yields. Crop price and annual revenue of the two barley types were also evaluated using a non-linear regression model. For the malt type, the food price was higher with a higher rainfall, while naked barley had a higher revenue under the conditions of a lower rainfall. K e y w o r d s: barley, rainfall, simulation, food cost, grain yield","PeriodicalId":13959,"journal":{"name":"International Agrophysics","volume":"35 1","pages":"119-129"},"PeriodicalIF":2.2,"publicationDate":"2021-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43582670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
J. Šimečková, A. Polcar, Anna Hammerová, J. Votava, V. Kumbár
*Corresponding author e-mail: vojtech.kumbar@mendelu.cz **This work was supported by the project ZETOR (EG15_ 019/0004799 – ZETOR TRACTORS a.s.) – Optimal aggregation of machines with a tractor (from 01.06.2017 to 31.08.2019). A b s t r a c t. The effect of the passage of agricultural machinery on the soil is influenced by, for example, the inflation pressure in tyres. This article describes the effect of different tyre inflation pressures (200 and 100 kPa) on selected physical soil properties in the field experiment. The undisturbed samples were collected both in and between the tracks at depths of 0 to 0.5 m and subsequently processed according to a valid methodology in the laboratory. The results indicate that fewer negative changes were found in the variant with a lower inflation pressure for all of the observed soil properties (front wheels load 2 990 kg and rear wheels 11 760 kg). However, the differences between the pressures were not statistically significant. The impact of different tyre pressures at greater depths has also not been proven to date. This may be attributed to the creation of a plough pan due to the long-term use of the minimization technique because the values of individual properties were balanced at a depth of 0.2 to 0.3 m. These depths do not react to further tractor compaction due to the accumulation of compaction. Changes to the values of soil physical properties caused by the passage of the tractor were statistically significant for both tyre pressure variants only at depths ranging from 0 to 0.1 m. K e y w o r d s: soil compaction, tyre inflation pressure, physical properties
*通讯作者电子邮件：vojtech.kumbar@mendelu.cz**这项工作得到了ZETOR项目（EG15_119/0004799–ZETOR TRACTORS a.s.）的支持——机器与拖拉机的最佳组合（2017年6月1日至2019年8月31日）。a b s t r a c t。农业机械在土壤上的通行效果受到轮胎充气压力等因素的影响。本文介绍了在田间试验中，不同轮胎充气压力（200和100kPa）对选定土壤物理性质的影响。在0至0.5m深度的轨道内和轨道之间采集未扰动样本，随后在实验室中根据有效方法进行处理。结果表明，在所有观测到的土壤特性（前轮负载2990 kg，后轮负载11760 kg）的充气压力较低的情况下，在变体中发现的负面变化较少。然而，两种压力之间的差异在统计学上并不显著。到目前为止，不同轮胎压力在更深处的影响也尚未得到证实。这可能是由于长期使用最小化技术而产生的犁盘，因为各个特性的值在0.2至0.3m的深度处是平衡的。由于压实的累积，这些深度对进一步的拖拉机压实没有反应。仅在0至0.1 m的深度范围内，拖拉机通过导致的土壤物理特性值的变化在两种轮胎压力变化中具有统计学意义。K e y w o r d s：土壤压实度、轮胎充气压力、物理特性
{"title":"Changes to the physical properties of the soil after the passage of an agricultural tractor","authors":"J. Šimečková, A. Polcar, Anna Hammerová, J. Votava, V. Kumbár","doi":"10.31545/INTAGR/133752","DOIUrl":"https://doi.org/10.31545/INTAGR/133752","url":null,"abstract":"*Corresponding author e-mail: vojtech.kumbar@mendelu.cz **This work was supported by the project ZETOR (EG15_ 019/0004799 – ZETOR TRACTORS a.s.) – Optimal aggregation of machines with a tractor (from 01.06.2017 to 31.08.2019). A b s t r a c t. The effect of the passage of agricultural machinery on the soil is influenced by, for example, the inflation pressure in tyres. This article describes the effect of different tyre inflation pressures (200 and 100 kPa) on selected physical soil properties in the field experiment. The undisturbed samples were collected both in and between the tracks at depths of 0 to 0.5 m and subsequently processed according to a valid methodology in the laboratory. The results indicate that fewer negative changes were found in the variant with a lower inflation pressure for all of the observed soil properties (front wheels load 2 990 kg and rear wheels 11 760 kg). However, the differences between the pressures were not statistically significant. The impact of different tyre pressures at greater depths has also not been proven to date. This may be attributed to the creation of a plough pan due to the long-term use of the minimization technique because the values of individual properties were balanced at a depth of 0.2 to 0.3 m. These depths do not react to further tractor compaction due to the accumulation of compaction. Changes to the values of soil physical properties caused by the passage of the tractor were statistically significant for both tyre pressure variants only at depths ranging from 0 to 0.1 m. K e y w o r d s: soil compaction, tyre inflation pressure, physical properties","PeriodicalId":13959,"journal":{"name":"International Agrophysics","volume":"35 1","pages":"97-105"},"PeriodicalIF":2.2,"publicationDate":"2021-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44368684","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
T. Włodarczyk, M. Brzezińska, W. Stepniewski, U. Majewska, P. Szarlip, A. Księżopolska, M. Pazur
*Corresponding author e-mail: t.wlodarczyk@ipan.lublin.pl **The paper was partly financed by project No. NN310115338 sponsored by Ministry of Science in Poland (2010-2013). Ab s t r a c t. Specifically, it was tested whether the presence of O2 in the headspace modified the sequence and preference of electron acceptor use under hypoxic conditions after prolonged drought in arable soils. This laboratory study was conducted in order to examine the use of electron acceptors: oxygen (O2), nitrate (NO3 ̄) and nitrous oxide (N2O), during aerobic and anaerobic respiration (denitrification). Agricultural soils (Typic Dystrudepts) classified as sandy, silty and loamy soils from arable top soils (0-30 cm) were used in the study. The change of oxidation states of different chemical species in the soil affected the use of electron acceptors during denitrification. The use of O2, NO3 ̄ and net N2O use was gradual and differed greatly among the soils. Furthermore, microorganisms were shown to be able to use all three investigated electron acceptors simultaneously, but with clearly visible preferences. The rate of electron acceptor use per day differentiated the investigated soils into a few different groups. Overall, the results of this study indicated that N2O was a more preferable electron acceptor than NO3 ̄ when O2 was present in the headspace for the most investigated soils. Moreover, a correlation existed between the final electron acceptor use and particle-size distribution and the native organic C content (Corg). The rate of electron acceptor use per day calculated for O2, NO3 ̄ and N2O may provide very important information for distinguishing the preference of electron acceptor use during aerobic and nitrate respiration in agroecosystems under hypoxic conditions after prolonged drought for different kinds of electron acceptor. K e y w o r d s: electron acceptor use, N2O net use, O2 consumption, NO3 ̄ reduction, flooded soils after drought INTRODUCTION
*通讯作者电子邮件：t.wlodarczyk@ipan.lublin.pl**该论文的部分资金来自波兰科学部赞助的项目NN310115338（2010-2013）。Ab s t r a c t。具体而言，测试了在耕地土壤长期干旱后，在缺氧条件下，顶部空间中O2的存在是否改变了电子受体使用的顺序和偏好。进行这项实验室研究是为了检查电子受体：氧（O2）、硝酸盐（NO3̄）和一氧化二氮（N2O）在有氧和厌氧呼吸（反硝化）过程中的使用。研究中使用了农业土壤（Typic Dystrudepts），从耕地表层土壤（0-30 cm）中分为沙质、粉质和壤土。土壤中不同化学物质氧化态的变化影响了反硝化过程中电子受体的使用。O2、NO3̄的使用和N2O的净使用是渐进的，不同土壤之间差异很大。此外，微生物被证明能够同时使用所有三种研究的电子受体，但具有明显可见的偏好。每天使用电子受体的速率将所研究的土壤分为几个不同的组。总的来说，这项研究的结果表明，当O2存在于大多数研究土壤的顶部空间时，N2O是比NO3更优选的电子受体。此外，最终电子受体的使用与颗粒尺寸分布和天然有机碳含量（Corg）之间存在相关性。根据O2、NO3̄和N2O每天计算的电子受体使用率，可以为区分不同类型的电子受体在长期干旱后缺氧条件下农业生态系统中有氧和硝酸盐呼吸过程中的电子受体偏好提供非常重要的信息。K e y w o r d s：电子受体使用、N2O净使用、O2消耗、NO3̄还原、干旱后淹水土壤简介
{"title":"Sequence and preference in the use of electron acceptors in flooded agricultural soils","authors":"T. Włodarczyk, M. Brzezińska, W. Stepniewski, U. Majewska, P. Szarlip, A. Księżopolska, M. Pazur","doi":"10.31545/INTAGR/132372","DOIUrl":"https://doi.org/10.31545/INTAGR/132372","url":null,"abstract":"*Corresponding author e-mail: t.wlodarczyk@ipan.lublin.pl **The paper was partly financed by project No. NN310115338 sponsored by Ministry of Science in Poland (2010-2013). Ab s t r a c t. Specifically, it was tested whether the presence of O2 in the headspace modified the sequence and preference of electron acceptor use under hypoxic conditions after prolonged drought in arable soils. This laboratory study was conducted in order to examine the use of electron acceptors: oxygen (O2), nitrate (NO3 ̄) and nitrous oxide (N2O), during aerobic and anaerobic respiration (denitrification). Agricultural soils (Typic Dystrudepts) classified as sandy, silty and loamy soils from arable top soils (0-30 cm) were used in the study. The change of oxidation states of different chemical species in the soil affected the use of electron acceptors during denitrification. The use of O2, NO3 ̄ and net N2O use was gradual and differed greatly among the soils. Furthermore, microorganisms were shown to be able to use all three investigated electron acceptors simultaneously, but with clearly visible preferences. The rate of electron acceptor use per day differentiated the investigated soils into a few different groups. Overall, the results of this study indicated that N2O was a more preferable electron acceptor than NO3 ̄ when O2 was present in the headspace for the most investigated soils. Moreover, a correlation existed between the final electron acceptor use and particle-size distribution and the native organic C content (Corg). The rate of electron acceptor use per day calculated for O2, NO3 ̄ and N2O may provide very important information for distinguishing the preference of electron acceptor use during aerobic and nitrate respiration in agroecosystems under hypoxic conditions after prolonged drought for different kinds of electron acceptor. K e y w o r d s: electron acceptor use, N2O net use, O2 consumption, NO3 ̄ reduction, flooded soils after drought INTRODUCTION","PeriodicalId":13959,"journal":{"name":"International Agrophysics","volume":"35 1","pages":"61-71"},"PeriodicalIF":2.2,"publicationDate":"2021-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47633492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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