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桃树在生长季节对铜制剂农药反应敏感,极易发生药害,被视为喷铜制剂的“禁区”。然而铜高尚虽属铜制剂,却具备超微粒、杀菌力强、悬浮性及附着性俱佳、促进植株生长、对作物刺激性低、药液中性、配伍性好等诸多独特的优点,用该农药可否打开“禁区”,并对病害的防效如何,尚需试验证明。为此,我们于2000年对青州蜜桃进行了铜高尚喷洒试验,现小结如下:
Peach trees in the growing season sensitive to pesticide formulations of copper, prone to phytoextracutival injury, was sprayed bronze formulations of the “restricted area.” However, although noble brass copper preparations, but with ultra-fine particles, strong bactericidal power, suspension and superb adhesion, and promote plant growth, low stimulation of crops, liquid neutral, compatibility and many other unique advantages, with The pesticide can open the “restricted area” and the disease control effect, still need to test proved. To this end, we conducted a noble noble copper spraying test on Qingzhou peach in 2000, which is summarized as follows: