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秸秆还田能增加土壤有机质,改良土壤结构,一般可增产5%~10%。秸秆还田一般作基肥用。还田量要适中,一般每亩(1亩=667平方米,下同)折干草150~250千克为宜。秸秆施用要均匀,并要适量深施速效氮肥以调节适宜的碳氮比。还田的途径有间接和直接两种。1.间接还田(1)过腹还田利用秸秆饲喂牛、猪、羊等牲畜,经消化吸收变成粪、尿,以粪尿施入土壤还田。(2)堆沤发酵还田将作物秸秆制成堆肥、沤肥等,经
Straw can increase soil organic matter, improve soil structure, usually yield 5% to 10%. Straw is generally used as a base fertilizer. Returned to the amount of moderate, the general per acre (1 mu = 667 square meters, the same below) hay 150 to 250 kg is appropriate. Straw application should be uniform, and appropriate amount of deep-acting nitrogen fertilizer to adjust the appropriate carbon and nitrogen ratio. There are indirect and direct ways to return to the field. 1. Indirect back to the field (1) Belly back to the field Use of straw feeding cattle, pigs, sheep and other livestock, by digestion and absorption into manure, urine, manure applied to the soil back into the soil. (2) Heap 沤 fermented to the field of crop stalks made of compost, 沤 fertilizer, etc.