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农作物秸秆中,含有氮、磷、钾等多种营养元素和大量的纤维素。秸秆还田是增加土壤有机质,改良土壤物理性状,培肥地力,提高作物产量的有效措施。特别是目前化肥紧缺的情况下,为了缓和化肥供不应求的矛盾,保证农业的稳定增产,具有重要意义。秸秆还田应注意下述几点:1.秸秆还田的数量要适当。据试验,水稻以每亩还麦秆150公斤,或者还蚕豆秆200公斤,晚稻还鲜稻草300—400公斤,花生藤还150—200公斤为好,当季增产达13.3—34%。秸秆
Crop stalks, containing nitrogen, phosphorus, potassium and other nutrients and a large number of cellulose. Straw is an effective measure to increase soil organic matter, improve soil physical properties, fertilize soil fertility and increase crop yield. In particular, the current shortage of fertilizers, in order to ease the contradiction between supply of fertilizers, to ensure a steady increase in agriculture, of great significance. Straw should pay attention to the following points: 1. The amount of straw returned to the appropriate. According to the experiment, rice also has 150 kilograms of wheat straw per acre or 200 kilograms of bean stalk, 300-400 kilograms of fresh straw also in late rice and 150-200 kilograms of peanut vine. The yield of the season is up to 13.3-34%. Straw