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生态学杂志 ›› 1989, Vol. ›› Issue (3): 44-48.

• 研究报告 • 上一篇    下一篇

有机肥和无机肥对稻田养分循环的影响

吴建军1, P. E. Sajise2   

  1. 1. 浙江农业大学;
    2. 菲律宾大学
  • 出版日期:1989-06-10

Effect of Organic and Inorganic Fertilizers on Nutrient Cyclings in Paddy Field

Wu Jianjun1, P. E. Sajise2   

  1. 1. Zhejiang Agricultural University;
    2. University of Philippines
  • Online:1989-06-10

关键词: 构件, -3/2方自疏法则, 可塑性, 可塑相似性, 限制性

Abstract: The input and output Of riutrients indicate that paddy fields with application of organic fertilizers have positive surpus in N, P and K,but those with application of inorganic fertilizers have negative balarlce in P and K and a large amount of surplus in N.Field experiment shows that significant higher amount of N was volatnized in the urea trcatment than in the compost treatment. The long-term application of organic fertilizers can rieduce the volatilization loss of N and leaching loss of N and K.but the leaching loss of P seems aggravated in the case.