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一、前言化学药剂除草,除草效果好,已被广泛应用于农业生产。但在枸杞生产上试验,由于枸杞对除草剂的敏感性较强,如果使用不当,易遭药害。不仅除草剂直接施用于枸杞园有药害,在附近农田施用除草剂或喷药后其器械再在枸杞园使用也会造成药害。如宁夏农科所基地一队,1973年利用化学药剂作除草试验时,有的除草剂即有药害反应。1978年6月初误用除草剂(二甲四氯)喷洒树冠,致使221株(合1.33亩)枸杞受药害,估计减产44％。原贺兰园艺场,1973年因农药商标脱落,将化学除草剂误为农药,进行防虫喷药,使数十亩成年枸杞七寸枝的叶和花蕾干枯,造成严重药害,夏果几无收获。1978年5月银川郊区芦花公社
I. Introduction Chemical weeding, weeding effect, has been widely used in agricultural production. However, in the production of Chinese wolfberry test, as the Chinese wolfberry strong sensitivity to herbicides, if used improperly, vulnerable to injury. Not only the direct application of herbicides to wolfberry garden have phytotoxicity, herbicides in the nearby farmland or spraying their instruments and then use in the wolfberry garden can cause injury. Ningxia Institute of Agriculture, such as a base team, in 1973 the use of chemical agents for weeding test, some herbicides that have phytotoxic response. Early June 1978 misuse of herbicides (MCPA) spray canopy, resulting in 221 (1.33 acres) wolfberry by the injury, is estimated to yield 44%. Helan horticultural field, in 1973 because of pesticide trademark off, the chemical herbicide mistaken for pesticides, pest control and spraying, so that dozens of acres of Chinese wolfberry seven inch branches leaves and buds dry, causing serious injury, summer few reward. 1978 May Yinchuan suburb aloe commune