Conservation Tillage techniques of Spring Maize
Technical introduction: this technology is an advanced agricultural farming technology, through the implementation of no-tillage application of straw to cover the surface, reduce soil wind erosion, water erosion, and improve soil fertility and drought resistance. Core technology: ① straw mulching technology, straw and stubble left on the ground after corn harvest as mulch to reduce soil erosion and restrain sand blowing; ② no-tillage fertilization and sowing technology, using no-tillage seeder to fertilize and sow directly on uncultivated farmland; ③ chemical weeding technology, adopting soil closure after sowing and directional weeding. ④ deep loosening technology, conservation tillage mainly depends on crop roots and earthworms and other biological loosening, but because the mechanical work compacts the ground, the soil needs to be loosened, generally using special machinery once every 3-4 years. Ecological benefits: reduce surface runoff by 60%, soil water erosion by 80%, reduce wind erosion by 60%, reduce air pollution by not burning straw, increase soil water storage by 14-15%, increase water use efficiency by 15-17%, increase soil fertility, increase soil organic matter by 0.03%, and effectively restrain sandstorms. Economic benefits: reduce production costs; increase corn output by 5-13%; increase income by 8-15%. Social benefits: reduce the working procedure of agricultural machinery, reduce the labor intensity, and improve the quality of life of farmers.
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Soil testing and Formula fertilization Technology for Spring Maize
First, select suitable varieties. The suitable superior varieties should be selected according to local conditions, and the middle and late maturing varieties with a growth period of 120-130 days should be selected according to the heat resources and production practice. The main spring maize varieties with outstanding comprehensive characters are Nongda 108 and so on. Second, fine soil preparation. Spring corn requires deep ploughing, and autumn ploughing is earlier.
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Drought-resistant cultivation techniques of Spring sowing Maize
In recent years, with the increase of the area of spring sowing corn, maize dwarf mosaic virus has become the main disease of spring sowing maize. First, symptom identification: maize dwarf mosaic virus disease is susceptible in the whole growing period of maize, especially in the seedling stage. The disease can be seen in the three-leaf stage of corn, at first.
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