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jie gan zong he li yong zhu yao ji shu ji shi yi pei tao ji ju
Author(s): 
Pages: 50-52
Year: Issue:  14
Journal: Farm Machinery

Keyword:  秸秆氨化含钾量生活燃料年若含磷量土杂肥播种技术有机质含量谷物联合收割机秸秆直接还田;
Abstract: <正>秸秆是指小麦、玉米、油料等农作物在收获籽粒后剩余的部分,秸秆含有有机质和氮、磷、钾、钙、镁、硫等多种养分,据测定,湿玉米秸秆含氮量为0.61%,含磷量0.27%,含钾量2.28%,每亩地1年若还田鲜玉米秸秆1 250kg(1亩=1/15hm2,下同),则相当于4 000kg土杂肥的有机质含量、18.75kg碳铵、10kg过磷酸钙和7.65kg硫酸钾。农作物秸秆是工农业的重要生产资源,可用作肥料、饲料、生活燃料及造纸、建
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