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天气转暖,随着作物的发芽生长,药剂使用也随之增多,各种药害现象也屡见不鲜。有的显性药害表现较轻,作物在短时间之内可以恢复生长,比如乙氧氟草醚在大蒜生长期的药害大多是灼烧性枯死白斑,只要大蒜的生长点未受损,加以调理一般可以恢复生长。但如果把2,4D丁酯类除草剂误用在蔬菜、棉花、花生等阔叶作物上,轻则叶片扭曲成鸡爪形,抑制作物生长,重则会造成严重减产或绝产。套袋果树的果实在成熟期前后出现的黑点、黑斑,大多情况下是在幼果期喷洒的药剂种类或质量不合适,造成幼果果皮受伤,给一些寄生菌提供了侵入通道,最终在果面上形成黑色或褐色斑点。在小麦
The weather is getting warmer, and with the sprouting and growth of crops, the use of medicaments also increases. All kinds of phytosanitary measures are also uncommon. Some of the manifesting of phytoextraction is light, crops can resume growth in a short period of time, such as oxyfluorfen in the garlic growing season, most of the burning dead white, as long as the growth point of garlic is not damaged, Conditioning can generally restore growth. However, if 2,4D butyl herbicide is mistakenly used on broad-leaved crops such as vegetables, cotton and peanuts, the leaves are distorted into chicken-claw shape, which inhibits the growth of crops and severely reduces or aborts. The black spots and dark spots that occur in the bagged fruit tree before and after the maturity stage are mostly unsuitable for the type or quality of the agent sprayed in the young fruit stage, resulting in injury to the young fruit peel and providing access to some parasites, eventually Forms black or brown spots on the fruit surface. In wheat