High and stable yield: The national regional trials of summer maize in 1998 and 1999 were the first, which increased the yield by 28.9% and 15.5% respectively compared with the control varieties. 1998 The average yield per mu of Shandong regional test reached 674 kg, which was 36.7% higher than that of the control. The highest is 927 kilograms. Through multi-point investigation, 958 can produce 75 kg ~ 150 kg more corn per mu than ordinary varieties. Zheng Dan 958 has neat panicles, thin axes, deep grains, no bald tips and no empty stalks, with little annual difference and good stable yield.
Matters needing attention in maize planting
Choose the right variety There are many corn varieties on the market now. Lodging resistance must be considered when selecting maize varieties. Varieties with better comprehensive characters such as stress resistance. Last year, due to the poor stress resistance of many varieties, the temperature of maize was high when it bloomed and scattered, and the temperature was low when it rained and filled, which led to bald tips and grain shrinkage.
Rational Fertilization At present, many growers adopt the method of "one-time fertilization", which is also commonly known as "one-time fertilization", but this is not only unscientific, but also fertilization at the later stage of corn will lead to smaller ears, premature maturity and bald tips. The correct application method is to apply nitrogen fertilizer lightly at seedling stage and pay attention to using nitrogen, phosphorus and potassium compound fertilizer at big bell mouth stage.