How can large-scale planting of summer corn increase production?

How can large-scale planting of summer corn increase production? Please introduce the method of planting corn to achieve high yield from the following points: (1) select improved varieties according to local conditions. According to the planting purpose and production area, select the approved varieties, the leading varieties issued by the government and the excellent varieties selected from the local official demonstration; guide farmers to choose suitable varieties according to their own soil fertility level to avoid blindness. At present, the varieties with high quality, high yield and strong stress resistance in Huang-Huai-Hai region are Zhengdan 958, Nongda 108, Ludan 981, Jinhai 5 and so on. (2) improve seed quality. The seed management department should strictly enforce the law to ensure that the purity of the seeds used for production is ≥ 98%, the germination rate ≥ 85%, the purity ≥ 98%, and the water content ≤ 13%. (3) to change the planting mode and change the interplanting into summer direct seeding corn, so as to improve the sowing quality, avoid the bad weather conditions such as corn virus disease and high temperature, heavy rain and little sunshine at flowering stage, and improve the seed setting rate. (4) reasonable close planting and improving sowing quality. The suitable planting density was determined according to the characteristics of the variety. Improve wheat harvesting and corn sowing machinery, leave as little stubble as possible and crush wheat straw. Generally good soil moisture plots, sowing depth of 4 cm is appropriate, clay or soil is too wet, 3 cm 4 cm is appropriate. (5) applying fertilizer scientifically. The appropriate amount of fertilizer application is determined according to the level of soil fertility. To achieve balanced fertilization of nitrogen, phosphorus, potassium and all kinds of micro-fertilizers, and to apply seed fertilizer, middle stage, flowering and grain stage topdressing in stages to avoid late de-fertilization. The application of phosphorus and potassium fertilizer should be advanced to the sowing time. New fertilizers such as slow-release fertilizer can also be used as base fertilizer at one time. (6) make timely forecasts of diseases and insect pests and guide farmers to take preventive measures and scientific prevention and control. Guide farmers to use efficient, low-toxic, ecological and safe seed coating agents, herbicides and pesticides. Where the conditions are suitable, black light or biological control can also be adopted. In accordance with the principle of "prevention first, comprehensive control", priority should be given to agricultural control, biological control, physical control and rational use of chemical control. (7) full-ripe harvest. Make full use of the light and temperature resources of maize in the later growth stage, harvest when the endosperm line of maize grain disappears, the black layer appears and the bracts dry up. (8) returning straw to the field. In the face of the outstanding problems of insufficient input of organic fertilizer and deterioration of soil physical and chemical properties, returning straw or over-belly returning to the field is an effective way to improve soil structure, improve resource utilization and reduce environmental pollution. Click to get more corn planting techniques click to get more food crop planting techniques