How to control aphids in corn field?
How to control aphids in corn field? Please introduce the control methods of aphids in corn field as follows: (1) Chemical control: 200g of 5% methamidophos granules per 667m2, 1.5kg of fine sand or soil, 1 ridge every other ridge, fumigation to kill aphids; 0.5% dimethoate powder 1500 times or 50% dimethoate EC 1500 times or 50% aldicarb powder 667 square meters 8g, 50 kg water spray. (2) protect and utilize natural enemies, small black spiders and many ladybugs eat aphids. When you see these beneficial insects, do not spray pesticides or use pesticides that do not harm these natural enemies-50% aldicarb, etc. Click to get more corn planting techniques click to get more food crop planting techniques
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How to treat corn small spot disease?
How to treat corn small spot disease? Please guide corn small spot disease can refer to the following methods to control: First, symptoms of corn small spot disease can occur throughout the growth period of corn, mainly damaging leaves, leaf sheaths, bracts and ears can also be affected. Most of the disease started from the lower leaves of the plant, spread upward and expanded. Leaf spots...
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How to fertilize corn correctly?
How to fertilize corn correctly? Please guide the following corn topdressing techniques for your reference: a fertilization of 3, 4 pieces. It refers to the combination of inter-seedling, fixed seedling, transplanting one-time fertilization, which is a basis to ensure that the seedling is complete and complete, and to promote seedling health. Generally, it is appropriate to use human manure and biogas fertilizer per mu.
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