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生态学杂志 ›› 1995, Vol. ›› Issue (1): 54-57.

• 研究报告 • 上一篇    下一篇

西昌黄联耕地养分的输入输出研究

雷圣远   

  1. 四川农业大学, 雅安625014
  • 收稿日期:1994-04-03 修回日期:1994-05-15 出版日期:1995-02-10

Input and Output of Soil Nutrients at Huanglian of Xichang

Lei Shengyuan   

  1. Sichuan Agricul-tural University, Yaan 625014
  • Received:1994-04-03 Revised:1994-05-15 Online:1995-02-10

关键词: 土地利用, 土壤养分, 滇池

Abstract: he input and output of soil nutrients at Huanglian town of Xichang city was studies in 1984-1990. The results show that the input of soil nutdents N,P and K is less than their output andapplying potassium fertilizer has an evident effect on crop yield. The nutrient utilization efficien-cies are decreased about 50%, and the solving ways are discussed.

Key words: land use, soil nutrient, Dianchi watershed of Yunnan.