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生态学杂志 ›› 1985, Vol. ›› Issue (6): 26-28.

• 研究报告 • 上一篇    下一篇

上海郊区农田生态系统的养分循环和施肥

王方桃   

  1. 上海市农业科学院土壤肥料研究所
  • 收稿日期:1985-04-09 出版日期:1985-12-10

Study on the Nutrient Circulation and Fertilization in Farmland Ecosystem of Shanghai Suburbs

Wang Fan gtao   

  1. Institute of Soil and Fertilizer, Shanghai Academy of Agricultural Sciences
  • Received:1985-04-09 Online:1985-12-10

关键词: 人工林, 凋落物, 养分, 养分转移

Abstract: In the farmland ecosystem of Shanghai suburbs, soil are rich in N and P, but deficient in K.In order to keep nutrient balance in this ecosystem and make crops grow well, it is necessary to decrease the application of N, stope the application of P, and supply suitable amount of K to the soil.

Key words: Plantation, Litterfall, Nutrient, Nutrient translocation