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随着化学除草技术在玉米生产中的广泛应用和推广,同时也因人为及天气等因素,除草剂药害发生次数及面积也随着增加。其症状包括:畸形、褪绿、坏死、落叶、矮化、生育期延迟、产量降低等。一、药害产生的主要原因1、除草剂品种和类型选用不当。未选用玉米田专用除草剂或选用的剂型不当。如在玉米苗期错误地使用了土壤
With the extensive application and popularization of chemical weeding technology in corn production, as well as factors such as man-made weather and weather, the number and area of herbicide phytotoxicity also increase. Its symptoms include: deformity, chlorosis, necrosis, deciduous, dwarfing, delayed growth period, yield reduction and so on. First, the main causes of injury 1, herbicide varieties and types of improper selection. Not used cornfield dedicated herbicide or improper dosage form. Such as the corn seedling mistakenly used the soil