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2. Zero-risk means that there is no obvious defect in the production process of the variety, and there are no problems such as lodging, empty rods, baldness, late maturation, serious head and smut. As a user of varieties, while demanding high yields of varieties, they must also pay attention to their wide adaptability and excellent comprehensive traits to ensure stable production and safety.
3. Try first because the seeds of different regions, different cultivation techniques, and different companies are different, so it should be tested. In the first year, the plant was first planted, and in the second year it was planted again.
4. Selection of mainstream varieties refers to the few elite varieties that are adopted by the majority and grow a large area. It is more safe to choose the varieties that are suitable for planting from mainstream varieties.
5. To understand the supporting technology must make it clear that the species is a compact or large spike variety? Variety characteristics, density, management techniques, etc., and management must keep up, can play a high yield advantage. Otherwise, it can only be a general production.
6. Mandatory Breeding Seedlings Crossbreeding is a generation hybrid seeding of two inbred lines. It is the type of corn with the highest yield in the world. In the advantaged utilization of maize hybrids, the yield is significantly higher than that of maize crossbreds and corns. Intercourse.
7. Moderate growth period
8. Preventing market frauds Prevent counterfeit seeds such as aliens of the same name, homonymous names, and new seeds from entering the market. Farmers should pay attention to the quality of seed appearance, production date, germination rate, etc., and ask for invoices and safeguard their rights in accordance with the law.
9. Going out of the erroneous zone to overcome the curiosity, do not engage in absoluteization, and go out of the "what's the latest variety is the highest yield of seeds; the most expensive seeds are the best seeds; big ear varieties are high-yield species" and other errors.
Corn selection nine key tips
1. High yields and high yields are the first choices. Among the factors that increase the yield of summer corn, the variety has a function of about 20% to 30%.