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Choose good varieties: For corn, choose varieties with a growing period of more than 112 days, a well-developed root system, compact plant types, upturned leaves and robust growth, strong resistance to stress, single ears, and large grains. Before sowing, it is necessary to select the seeds, remove small diseased and dead seeds and dry them for 2-3 days. This can improve the water absorption capacity of seeds, achieve early emergence and improve quality. purity of seeds, reduce the number of future plants and improve the uniformity of plants.
Coating the seeds is recommended: For uncoated seeds, it is necessary to use one or two bells of methylammonium, plus one “Bi Duo Shu” mixed with 20 kilograms of corn seeds, which has the effect of preventing subsoil pests and early emergence.
Choose the besture planting date: Spring corn requires proper moisture to determine the planting date. Moisture content should be sufficient at the beginning of May. The white spring soil must be plowed in autumn. be harrowed in early spring to maintain humidity. High yielding fields should be harrowed if moisture conditions permit, can be sown later, May 5-15, which is beneficial for high corn yield. The general sowing period is from April 25 to May 5.
Apply more fertilizer: Apply more phosphorus and potassium fertilizers and adjust the ratio of nitrogen, phosphorus and potassium.
With a yield of 1,200 kilograms of corn per mu, 20 kilograms of diammonium, 25 kilograms of urea and 15 kilograms of potassium sulfate are applied per mu to achieve large-scale fertilization. The K ratio is 1:0.7:0.
Duration and method of fertilizationon: 70% chemical fertilizer during sowing, plus all phosphorus and potassium fertilizers, applied at the bottom or deep in side ditches at one time, and the other 30% chemical fertilizer, applied on the surface at 10 o'clock. leaves at a time, 15 cm deep on the side of the plant.
Form Density: For spring corn planting, it is recommended to sow evenly spaced rows, with row spacing of 1.8 feet, plant spacing of 0.95 feet and 3,500 plants per mu.
Seeding technology: Village teams with conditions recommend machine sowing or double columbine sowing. The seeding rate is 4 catties/mu. Seeds and fertilizers are applied 3 to 4 cm below the seeds. Seedlings do not burn and promote seed root penetration. If this is not conditional, small ditches can be dug and the seeds can be spread by hand at a seeding ratefrom 5 to 6 catties/mu.
If you master the above measures, you will achieve high yield and you can get the ideal corn yield after autumn. For corn, you should choose improved varieties with a growing period of more than 112 days, well-developed roots, compact plant shape, upturned leaves, strong growth, strong stress resistance, single ears and large grains. Before sowing, seeds must be sown. carefully selected to eliminate small, diseased grains. Sun drying grain seeds for 2-3 days can improve the water absorption capacity of seeds, achieve early emergence, improve seed purity, reduce the number of progeny and improve uniformity. plants.
Coating of seeds is recommended: For uncoated seeds, it is necessary to use one or two methylammonium bells, plus a “BiDuo Shu" mixed with 20 kilograms of corn seeds, which has the effect of preventing subsoil pests and early emergence.
Choose the best sowing date: spring corn requires moisture suitable for determining the sowing date. Moisture content should be sufficient in early May. Spring white soil should be plowed in early spring to maintain moisture. should be harrowed if moisture conditions permit, can be sown later, from May 5 to 15, which is beneficial for high corn yield. The general sowing period is from April 25 to May 5.
Apply more fertilizer: Apply more phosphorus and potassium fertilizers and adjust the ratio of nitrogen, phosphorus and potassium
The corn yield per mu is. of 1,200 kilograms and diammonium 2 is applied per mu.0 kg, 25 kg of urea, 15 kg of potassium sulfatessium, to obtain large-scale fertilization, with an N:P:K ratio of 1:0.7:0.5.
Duration and method of fertilization: 70% chemical fertilizer during sowing, plus all phosphorus and potash fertilizers, applied to the bottom or deep in side ditches at one time, and the other 30% chemical fertilizer, surface applied at 10 hours. leaves at a time, 15 cm deep on the side of the plant.
Form Density: For spring corn planting, it is recommended to sow evenly spaced rows, with row spacing of 1.8 feet, plant spacing of 0.95 feet and 3,500 plants per mu.
Seeding technology: Village teams with conditions recommend machine sowing or double columbine sowing. The seeding rate is 4 catties/mu. Seeds and fertilizers are applied 3 to 4 cm below the seeds. Seedlings do not burn and promote seed root penetration. If thisThe is not conditional, small ditches can be dug and the seeds can be spread by hand at a seeding rate of 5 to 6 catties/mu.