High-yield sowing of corn is the key , with emphasis on the selection of good varieties , preparation for seeding and seed treatment.
    1 , choose the right variety
    Corn is one of the most regional food crops, and each variety has its best suitable growing area. There are many varieties of corn seeds currently on the market, which come from different parts of the country. When selecting varieties, we must choose high-yield varieties suitable for local cultivation. It is necessary to consider the fertility conditions and planting habits of the soil, as well as the characteristics and suitable areas of the variety. According to the climate characteristics and soil fertility conditions of our county and the production practice experience in recent years, the high water and fertilizer plots should be selected: æµšå• 20 , Zhengdan 958 , Luodan 6 ; medium water and fertilizer plots should be selected: è ¡çŽ‰ 16 , Zhongke 11 , Henan Wo 998 ; should choose in the drought and flood land: Zhongke No. 4 , Ludan 981 , Zhengda 12 and so on.
   2 , do a good job before the broadcast
   The focus of corn preparation before seeding is seed treatment. It mainly includes the choice of using coated seeds, doing well the seeding work before sowing, improving the seed germination potential, ensuring the seedlings, the seedlings, and the seedlings.
   3 , appropriate amount of sowing
   Appropriate sowing is to choose the appropriate seeding method (planting, live broadcasting, machine broadcasting) according to the actual situation. Try to grab the time and broadcast it as soon as possible. The right amount is to ensure the planting density according to the characteristics of the variety. Proper time for planting summer corn county general June 1 - June 15 is appropriate, the higher the yield sown earlier, over June 15 will result in lower corn yields. Sowing flat type maize leaf; 3000 acre plots at fertility, etc. - 3300; 3300-3500 mu fertility strain in the upper block. Type Maize: Lot in fertility in the lower strain mu 3500-3800; fertility in the upper Lot mu 3800--4200 strain; high water and fertilizer per acre plots 4200--4600 strain.
   4 , under the foot
   Enough moisture planting, sowing all seedlings is a key technical measures yielding corn, because corn is to rely on high-yield plant to win big spike, spike the lack of a less income 100--200 grams of corn. 100 per acre to cut short 10--20 kg. For this reason, when the corn is planted, it must be done under the foot. Only the underlying species can ensure a full seedling, complete seedlings, seedlings, and seedlings, laying a good foundation for high yield of corn. 　  　
Author: Mayi Yong
Source: Henan Jixian Agricultural Science Experimental Station
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