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锌是作物生长发育的必需营养元素之一。对作物体内的叶绿素、生长素合成和有机物质转化有重要作用。施用锌肥可以提高作物籽实产量.增强作物抗逆性。据试验,合理施用锌肥可使玉米增产16—34%;麦类增产6.5—30%;番茄增产8—48%,效果相当显著。一、合理施用锌肥1、要施在缺锌的土壤上。土壤中的有效锌以二价离子的形态被土壤和有机质等吸附.土壤中有效锌含量多少因土壤性质而异,一般
Zinc is one of the essential nutrients for crop growth and development. The crop chlorophyll, auxin synthesis and organic matter conversion has an important role. Zinc fertilizer can increase crop seed yield and enhance crop stress resistance. According to the test, reasonable application of zinc fertilizer can increase yield of maize by 16-34%; yield of wheat by 6.5-30%; yield of tomato by 8-48%, the effect is quite remarkable. First, the rational use of zinc fertilizer 1, to be applied in zinc-deficient soil. The available zinc in the soil is biologically charged by soil and organic matter, etc. The amount of available zinc in the soil varies depending on the nature of the soil,