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紫色土表层和聚土分层施氮的肥效比较艾应伟，陈实，张先婉（中国科学院成都山地研究所成都６１００４１）关键词紫色土；氮肥；分层施肥氮肥深施是提高氮肥肥效的一项有效措施，深施深度因作物种类、氮肥品种、土壤、降雨、耕作管理等的不同而异。作物对氮肥的吸收利用以...
Fertilizer efficiency of stratified application of nitrogen in purple soil surface soil and poly-earth soil YE Ying-Wei, CHEN Shi, ZHANG Xian-Wan Chengdu Institute of Mountain Biotechnology, Chinese Academy of Sciences, Chengdu 610041, China Keywords: purple soil; nitrogen fertilizer; stratified fertilization; Effective measures, the depth of the depth of the crop varieties, nitrogen varieties, soil, rainfall, tillage management, etc. vary. Absorption and utilization of crop nitrogen fertilizers to ...