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1.整地与施肥①整地要求耕层深厚肥沃,上软下松,田面平坦。有条件的地方旋耕与秋深翻相结合,达到3年一深翻。一般粘重地深翻20厘米,沙壤地浅翻15厘米。据调查秋翻比春翻的稻田硝态氮增加64.6%,有效磷增加21.6%,有效钾增加43.7%。②有机肥能增加土壤孔隙度,保肥保水,提高土壤温度,一般每公顷施用农家肥40000—60000公斤。化肥施用量:每公顷施纯氮120—150公斤、
1. Site Preparation and Fertilization ① Site Preparation Deep and fertile farming, soft and loose, flat surface. Rotary tillage and autumn deep conditions combined with the turning point, reaching 3 years a deep turn. In general, thick deep plowing 20 cm, sandy soil shallow turn 15 cm. According to the survey, the yield of nitrate increased by 64.6%, that of available phosphorus increased by 21.6% and that of available potassium increased by 43.7%. ② organic fertilizer can increase the porosity of the soil, keep fat and water, improve soil temperature, fertilizer application per hectare 40,000-600 kilograms. Fertilizer application rate: Apply nitrogen per hectare 120-150 kg,