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为了研究冬小麦和夏玉米的有机肥合理用量,验证有机肥提高粮田土壤肥力、改善作物品质、保护农业生态环境的效果,笔者在北京市通州区宋庄镇双埠头推广站展示基地选用同一地块进行上茬冬小麦下茬夏玉米试验。试验结果表明:冬小麦与夏玉米2茬产量的结果均呈现随有机肥用量的增加而增加的趋势,但并不是随有机肥用量的成倍增加而增长;小麦最佳施肥量为施用有机肥261.00kg/667m2,配合二铵9.90kg/667m2、尿素10.95kg/667m2、硫酸钾9.10kg/667m2;玉米的最佳施肥量为二铵19.40kg/667m2、尿素21.50kg/667m2、硫酸钾17.80kg/667m2。
In order to study the reasonable amount of organic fertilizer for winter wheat and summer maize, and to verify the effect of organic fertilizer on soil fertility, crop quality and the protection of agro-ecological environment in grain field, the author selected the same selection base of Shuangbu Tou Promotion Station in Songzhuang Town, Tongzhou District, Beijing Block on the stubble winter wheat under the summer corn trial. The results showed that the yield of winter wheat and summer maize showed a trend of increasing with the increase of organic fertilizer, but did not increase with the doubling of organic fertilizer. The optimum amount of wheat was 261.00 kg / 667m2, with 9.90kg / 667m2 of diammonium, 10.95kg / 667m2 of urea and 9.10kg / 667m2 of potassium sulfate.The optimum amount of fertilizers for corn was 19.40kg / 667m2 of diammonium, 21.50kg / 667m2 of urea and 17.80kg / 667m2.