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First, corn "single seeding" technology Introduction Corn "single seeding" technology is completed by the corn planter sowing, covering and repression. The "single seed" technology has the following advantages:
1. Save seeds. Seeds used for conventional sowing are generally 2.5 to 3 kg per acre, and 3800-4400 seeds per acre are required, which is approximately 1.0-1.3 kg.
2, save labor. Farmers can be exempted from seedlings, saving about 20 yuan / mu more than the cost.
3, Miao Qi Miao. The conventional planting density is large, it is easy to appear double seedlings, multiple seedlings, and when the seedlings hurt the roots, affecting the reserve seedling growth. Seedling spacing uniform seedlings, no excess seedlings compete for water and fertilizer, eliminating the seedlings, there is no damage to the roots to ensure Miao Qi, Miao Zhuang.
4, provinces and provinces save time and labor, reduce investment, and increase production, which will increase economic efficiency accordingly.
Second, the reasons for increasing the yield of corn sowing
1. The seedling stage has a good uniformity, and it is determined that there is a good level of uniformity in the later period to ensure high production. Since sown seeds are carefully selected, finely processed, and finely coated, the purity and cleanliness of the seeds are particularly high. Since the seedlings emerged, the uniformity was good and the seedlings were strong. There is a sign of high yield in maize, that is, the better the regularity in the later period, the higher the yield. Only the neatness at the seedling stage can be good at the late stage and the yield is high.
2. The seedlings will not hurt seedlings, and the seedlings will have high yields. In the past, sowing seedlings had to be carried out due to seedlings, which would injure the remaining seedlings. When seedlings grow out to 3-4 leaves, they can be interplanted and seedlings. These seedlings rely on the nutrients in the ground to absorb them. It wastes the soil strength. The seedlings compete for water and compete for fertilizer to form weak seedlings, seedlings, and yellows. seedling. Single seeding techniques do not use seedlings, which means seedlings can grow normally and grow more robustly.
3, moderate space, water and fertilizer concentration, adequate nutrition. Compared to the original sowing seedlings, there is enough room for nutrient absorption after sow seedling emergence. This is because nutrition is sufficient and seedlings grow more robust. This is one of the reasons why sowing seedlings can increase production.
Third, the corn sowing seeds on the mechanical requirements of the selected machine for gas-suction corn planter. It passes through the aspirator and then creates a negative pressure in a part of the tube. The middle plate separates it. After the separation, the seed is on one side, the negative pressure is on the other side, the hole passes through the middle hole, and then the seed is sucked up. A grain of grain sucks up, and then it goes to the bottom and it falls freely. Because it sucks only one, and let it fall down, it can only drop one, so this guarantees that the air-suction corn planter can sow seeds.
Corn "single seed" technology
In recent years, the economic benefits of corn cultivation have been significantly improved, and the planting area has increased significantly. However, many farmers have disregarded the characteristics of varieties, and the density of their seedlings is highly random. Some of them are below 3,000/mu, and some of them have a density of 5000 plants. Above the area of ​​mu, there is a big difference in the size of the ear of the maize field, and the rate of empty rods is relatively high, which seriously restricts the further increase of corn yield. Under the premise that it is difficult for corn varieties to make major breakthroughs, improving corn yield can only be achieved by changing the agronomic practices of corn cultivation, and the first thing to be solved is the issue of reasonable close planting. Vigorously promoting corn “single seed†technology is a thorough solution to this problem. The fundamental way of a problem.