摘要
试验采用单因素随机区组设计,研究了乙草胺、扑草净、赛克、速收这几类除草剂单用及混配对夏播大豆安全性的影响。试验结果表明:乙草胺与赛克适量浓度(1.5 L/hm2+0.75 kg/hm2)混用处理效果最好。该处理有利于调节光分布,提高光合速率;大豆子粒重量明显高于对照。研究还表明,土壤处理除草剂能在最早时间防治杂草,改善田间群体结构,从而促进大豆生长发育,对产量提高具有重要作用;适当的除草剂混用,可降低用药量,对杂草可持续防治具有重要意义。
This paper studied applicative techniques of herbicides acetochl, prometryne, metribuzin and flumioxasim respectively or mixed application to soil in the summer soybean by completely random design. The results indicated that mixture of acetochl and metribuzin employed soybean at the rate of 1.5 L/hm^2 ＋ 0.75 kg/hm^2 was a good deal to soil of soybean. It benefited to regulate the distribution of light ; increased photosynthesis rates and seed weight was higher than control. Experiment suggested that herbicides employed in soil -killed weed during earlier stage, improved group structure, growth and development of soybean, which was important to increase field of soybean. Suitable mixture of herbicides decreased the dose, which was important to the sustainable prevention of weed.
出处
《山西农业科学》
2007年第2期72-74,共3页
Journal of Shanxi Agricultural Sciences
关键词
除草剂
夏播大豆
安全性
药效
Herbicide
Summer soybean
Safety aspect
Efficiency
