近年来,虽然除草剂的品种越来越多,价格越来越高,但荠菜、播娘蒿和猪殃殃等阔叶杂草的防除效果越来越不好。随着小麦机割跨区作业的实施,随之带来的禾本科杂草也是一年比一年发生的面积广、为害重。很多人秋季不注意杂草的生长情况,等到春季发现后往往错过了适宜防治时机,只能眼瞅着茂密的杂草侵蚀小麦的生长,造成产量损失。其实,秋季随着小麦的出苗、生长,各种杂草也会陆续出土,此时的杂草幼嫩、抗药性弱,使用普通除 In recent years, although more and more varieties of herbicides, the price is getting higher and higher, but shepherd’s purse, sowing Artemisia annua and weed broadleaf weeds and other broad-leaved weeds control effect is getting worse. With the implementation of wheat cutting and cross-cutting operations, the grasses and weeds that accompany it will also take a wide area every year, causing serious damage. Many people do not pay attention to the growth of weeds in autumn. After the spring discovery, they often miss the right time for prevention and control. They can only look at the growth of dense weed erosion wheat and cause loss of yield. In fact, with the emergence of wheat in the fall, growth, a variety of weeds will gradually unearthed, this time weeds tender, weak resistance, the use of ordinary addition