The so-called corn good breeding method is based on the growth and development characteristics of the variety, and adopt the corresponding planting methods to give full play to the strengths of the varieties, overcome the deficiencies, and fully exert the potential for increasing production to achieve high yield, stable production and high efficiency. Different varieties have different growth and development characteristics, and the cultivation methods are not exactly the same. Maize varieties with high yield potential and high yield potential generally have higher requirements for fertilizer and water conditions and management measures. In the production practice, this requires the adoption of corresponding cultivation techniques and management methods according to the specific characteristics of each variety, in order to maximize the potential for increasing the yield of each variety. That is to say, the high-yield and high-efficiency can be achieved with good varieties and good methods.
In general, the minimum temperature for germination of corn is 8 °C, although it can germinate at 6-7 °C, but the emergence speed is slow and easy to rot; the germination temperature is 28-32c, so when the temperature is 5-10 cm, the temperature is 10-12. At °C, spring corn can be sown. The suitable sowing date for summer, autumn and winter maize is related to the harvest period of the previous crop. Seedling should ensure that the soil water content (dry soil weight) is not less than i6%, sand loam is not less than 13%, and silt loam is not less than 19%.
Production requires corn to be broadcast at an early time, and timely early sowing can not only make the plant robust, the root system is developed, but also can enhance stress resistance, promote early maturity, and obtain high yield.
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