Zinc is an indispensable trace element for crop growth. Zinc deficiency causes plant dwarf, short internodes, leaf expansion and elongation are inhibited, leaflets appear, and leaf margins are distorted and wrinkled. Corn whitening seedlings, rice dead seedlings, etc. are all caused by zinc deficiency. There are four ways to control zinc deficiency in crops: Seed dressing Dissolve zinc sulphate in a small amount of water, mix well, mix with the seeds, dry and sown. Seed soaking with zinc sulphate solution, corn can be soaked for 6-8 hours, the solution concentration is 0.02%~0.05%; rice can be soaked for 12 hours, the solution concentration is 0.1%. Foliar spray can be sprayed with zinc sulfate at a concentration of 0.1% in the early stage of crop growth, and sprayed again every 7 to 10 days. The soil is mixed with other fertilizers for base fertilizer application. The dosage is 1~3 kg per mu, pay attention to even application. (凡云)
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Four methods for controlling zinc deficiency in crops
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