类Act NG佐剂对玉米草甘膦药效的影响

IF 1.7 4区 农林科学 Q2 AGRICULTURE, MULTIDISCIPLINARY Journal of Agricultural Science Pub Date : 2023-10-15 DOI:10.5539/jas.v15n11p1
Nader Soltani, Christian A. Willemse, Peter H. Sikkema
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引用次数: 0

摘要

在安大略省环境条件下,草甘膦与Class Act NG佐剂共施对杂草防治效果和玉米产量的影响研究甚少。本研究包括2021年和2022年在安大略省进行的6项田间试验,以确定在草甘膦中添加450、900和1350 g / hm的类Act NG (2.5% v/v)是否会改善杂草控制并导致玉米产量的增加。在除草剂施用后1周和4周,草甘膦与类法NG共施用对玉米无明显伤害。在草甘膦中以450 g / h / 1添加Class Act NG,对普通羊、绒叶、苋菜、普通豚草和稗草的防治效果分别提高了20%、14%、9%、8%和7%,但对野狐尾和绿狐尾的防治效果没有改善,玉米产量也没有提高。在草甘膦中添加900 g / h / 1的类Act NG,在4和8 WAA时,普通羔羊的防治率分别提高6%和5%,在4 WAA时,稗草的防治率提高4%。在草甘膦中添加1350 g / h / 1的Class Act NG对绒叶、苋菜、普通豚草、普通羊蹄草、稗草、毛缕草和绿毛缕草的防治效果没有改善,玉米产量也没有增加。根据这一数据,当草甘膦用量为450或900克/公顷时,草甘膦与类法案NG共同施用可改善对某些一年生阔叶和禾草杂草(常见的羊蹄草、绒叶草、Powell苋菜、普通豚草和谷仓草)的控制;然而,当草甘膦用量为1350 g / hm -1时,杂草控制效果没有改善。在草甘膦中添加450、900和1350 g / hm -1的类法NG对玉米产量无显著影响。
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Effect of Class Act NG Adjuvant on Glyphosate Efficacy in Corn
There is little information on the effect of the co-application of glyphosate with Class Act NG adjuvant on weed control efficacy and corn yield under Ontario environmental conditions. This study consisted of 6 field experiments that were conducted in Ontario during 2021 and 2022 to determine if the addition of Class Act NG (2.5% v/v) to glyphosate at 450, 900 and 1350 g ae ha-1 would improve weed control and result in a concomitant increase in corn yield. The co-application of glyphosate with Class Act NG resulted in no visible corn injury at 1 and 4 weeks after herbicide application (WAA). The addition of Class Act NG to glyphosate at 450 g ae ha-1 improved control of common lambsquarters, velvetleaf, Powell amaranth, common ragweed, and barnyardgrass as much as 20, 14, 9, 8, and 7%, respectively but there was no improvement in control of giant foxtail, or green foxtail and there was no increase in corn yield. The addition of Class Act NG to glyphosate at 900 g ae ha-1 improved common lambsquarters control 6 and 5% at 4 and 8 WAA, respectively and improved barnyardgrass control 4% at 4 WAA. The addition of Class Act NG to glyphosate at 1350 g ae ha-1 provided no improvement in control of velvetleaf, Powell amaranth, common ragweed, common lambsquarters, barnyardgrass, giant foxtail, or green foxtail and there was no increase in corn yield. Based on this data the co-application of glyphosate with Class Act NG results in improved control of some annual broadleaf and grass weeds (common lambsquarters, velvetleaf, Powell amaranth, common ragweed and barnyardgrass) when glyphosate is applied at 450 or 900 g ae ha-1; however, when glyphosate is applied at 1350 g ae ha-1 there was no improvement in weed control. The addition of Class Act NG to glyphosate at 450, 900 and 1350 g ae ha-1 did not result in an increase in corn yield.
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来源期刊
Journal of Agricultural Science
Journal of Agricultural Science 农林科学-农业综合
CiteScore
2.80
自引率
5.00%
发文量
68
审稿时长
1.4 months
期刊介绍: The Journal of Agricultural Science publishes papers concerned with the advance of agriculture and the use of land resources throughout the world. It publishes original scientific work related to strategic and applied studies in all aspects of agricultural science and exploited species, as well as reviews of scientific topics of current agricultural relevance. Specific topics of interest include (but are not confined to): all aspects of crop and animal physiology, modelling of crop and animal systems, the scientific underpinning of agronomy and husbandry, animal welfare and behaviour, soil science, plant and animal product quality, plant and animal nutrition, engineering solutions, decision support systems, land use, environmental impacts of agriculture and forestry, impacts of climate change, rural biodiversity, experimental design and statistical analysis, and the application of new analytical and study methods (including genetic diversity and molecular biology approaches). The journal also publishes book reviews and letters. Occasional themed issues are published which have recently included centenary reviews, wheat papers and modelling animal systems.
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