Corn is vulnerable to frost, water corn, mold, affect production, reduce quality, poor quality. Therefore, it is necessary to take effective measures to strengthen the management of the field in the later period, especially to make up for the early fat and promote the maturation of corn frost.
Unplug empty stalks and plantlets. In the corn field, some plants cannot form the empty stalks due to lack of flour and other factors. Some low-yield corns not only absorb water and consume nutrients freely, but also compete with normal plants for light, affecting photosynthesis. Therefore, unplugged plants and small plants should be pulled out, and the effective nutrients and moisture should be supplied to normal plants.
Remove no effect spikes. Corn can grow several ears, but only one mature, no more than two. Some individuals have only a few grains on their ears. They are still immature. The masses call them "big cockroaches." They must all be chopped off to ensure that the main ears are full of grain and increase their grain weight.
Artificial pollination. Artificial pollination of corn can make corn not bald, lack of grain, large sticks, and full grain. The pollination time is from 8 to 10 am, and continuous pollination should be performed 2 to 3 times with good results.
Earlier supplements. Production practice shows that when corn grows 6 to 8 leaves, it is the jointing period, which is the peak period of fertilizer demand, combined with two times of shoveling, chasing 150 kg of ammonium nitrate or 120 kg of urea per hectare, and simultaneously applying zinc sulfate 1.5 Kilograms can reduce baldness; after spinning silk corn, the soil fertility is insufficient, the lower leaves yellow, defertilization is more obvious. Can be topdressed with nitrogen fertilizer or sprayed with 0.4% to 0.5% potassium dihydrogen phosphate, make-up attack granule fertilizer.
Stand stalks, moulting and drying. This method can promote early maturity of corn 5 to 7 days, reduce corn moisture 14% to 17%, increase production 5% to 7%, at the same time, but also improve the quality and improve quality. The drying time of the fur is very important. It is usually done in the middle and later stages of the waxing process. That is, when the grain has a hard lid, it is unfavorable if it is too early or too late. It affects the grouting prematurely and reduces the yield; it loses its meaning too late. The method is relatively simple, that is, open the corn stalks, so that all the grains exposed outside, but be careful not to break the handle, otherwise it will affect the yield.
Put Qiu ridge, get big grass. Put Qiu ridge can activate loose soil and eliminate weeds. Put Qiu ridge, take the big grass in the late stage of corn grouting, shallow hoe, not to hurt the principle of roots, is conducive to ventilation and light, increase the temperature, promote premature, increase production.
Remove male flowers. When the pollination of the corn is completed and the male flowers wither, all male flowers in the field are completely removed.
Remove the bottom leaves. At the later stage of corn growth, the bottom leaves are dead and have lost their function. They must be destroyed in time, increase ventilation and light transmission in the field, reduce nutrient consumption, and reduce disease infestation.
Close late. Generally do not freeze not to harvest, so that you can fully play the role of postharvest corn, can be fully mature, increase production, improve quality and improve quality.
China Extract Powder For Use As Dietary Supplement Extract Powder, Extract Powder Manufacturer
Shaanxi Kang New Pharmaceutical co., Ltd. , https://www.bodybuildingoil.com