留床苜蓿春季返青前土壤封闭处理防除杂草效果研究

STUDY ON THE EFFECT OF SOIL CLOSURE TREATMENT ON WEED CONTROL OF ALFALFA BEFORE SPRING GREENING

为探讨紫花苜蓿春季返青前不同药剂处理对田间杂草的防除效果,以促进高质量苜蓿生产。本研究通过布设480 g/L氟乐灵、10%咪唑乙烟酸和20%乙氧氟草醚3种药剂在紫花苜蓿春季返青前开展杂草防除效果的试验。结果表明:效果最好的为2.70L/hm^(2)的480 g/L氟乐灵及2.70 L/hm^(2)的480 g/L氟乐灵与0.90 L/hm^(2)10%咪唑乙烟酸混合使用,可有效抑制苜蓿田间杂草的发生频率,显著提升苜蓿草产品产量。

In order to promote the production of high quality alfalfa,this study aimed to investigate the control effect of different soil closing treatments on weeds in the field before the spring greening of alfalfa.In this study,three agents including 480 g/L fluraline,10%imidazolettonicotinic acid and 20%ethoxyfluoxane were used to test the weed control effect before spring greening of alfalfa.The results showed that 480 g/L fluralin(2.70 L/hm^(2))and 480 g/L Fluralin(2.70 L/hm^(2))combined with 10%imidazole-acetonicotinic acid(0.90 L/hm^(2))had the best soil sealing effect before returning alfalfa to green,which could effectively inhibit the occurrence frequency of weeds in alfalfa field and significantly improve the yield of alfalfa grass.