论文部分内容阅读
稻-麦模式下小麦秸秆还田腐熟,可改良土壤,培肥地力,显著提高土壤有机质、有效磷、速效钾含量,改善土壤酸碱度,对水稻有一定的增产效果。麦杆还田应保证腐熟时间,秸杆腐熟剂用量2㎏/667㎡较适宜。全量秸秆还田腐熟时,可减少氮肥用量5%~10%和钾肥用量30%~40%。
In the rice-wheat model, wheat straw maturity can improve soil and fertility, improve soil organic matter, available phosphorus and available potassium, and improve soil pH, which will increase yield of rice. Wheat straw should be guaranteed maturity time, the amount of straw maturity 2 ㎏ 667 ㎡ more appropriate. Full amount of straw maturity, can reduce the amount of nitrogen fertilizer 5% ~ 10% and potassium fertilizer 30% ~ 40%.