一年两熟地区小麦的磷肥累积利用率研究  

Study on the add up phosphorus fertilizer use efficiency on wheat at the region of two harvest in one year

作　　者：李云[1] 张宁[2] 邢文英[3] 高祥照[4] 王津花[1] 刘爱华[5] 杨帆[4] 

机构地区：[1]河北省廊坊市农林局,廊坊065000 [2]中国农业科学院土壤肥料研究所,北京100081 [3]农业部优质农产品开发服务中心,100020 [4]全国农业技术推广服务中心,北京100020 [5]廊坊市农业科学院,廊坊065000

出　　处：《土壤肥料》2002年第4期26-30,43,共6页Soils and Fertilizers

基　　金：河北省自然科学基金资助项目 (397395 )部分内容

摘　　要：本研究是在田间试验和土壤、植株实验室大量分析结果基础上完成的。通过连续三茬的磷肥后效试验 ,弄清了小麦施用不同量级磷肥条件下 ,磷肥首季利用率的变化及后季作物对前茬残留磷肥的利用状况。为适当降低或隔茬施用磷肥 ,实行测土调控施磷 ,合理利用磷肥资源提供科学依据。This study is based on the results of laboratory soil and plant testing and two residual effects of phosphorus field experiment on three crops. The result showed that the change of phosphorus use efficiency at first crop and the residual phosphorus use by successive crops under different rates of phosphorus fertilizer. Provide scientific basis for suitable reduction or alternate crops for application phosphorus and formulate soil test to regulate the phosphorus application for rational use of phosphorus resources.

关 键 词：一年两熟地区 小麦 磷肥 累积利用率 后效 

分 类 号：S512.106[农业科学—作物学]