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应用生态学报 ›› 2003, Vol. 14 ›› Issue (11): 2081-2083.

• 研究报告 • 上一篇    

太湖地区稻田氮肥吸收及其利用的研究

  

  1. 中国科学院南京土壤研究所|南京210008
  • 出版日期:2003-11-20 发布日期:2003-11-15

  • Online:2003-11-20 Published:2003-11-15

摘要: The effects of different amounts and kinds of nitrogen fertilizer on rice yield and its nitrogen uptake and utiliza-tion were studied on a main paddy soil (Wushan soil) of Taihu area. The results indicated that the optimal amount of nitrogen fertilizer was about 180 kg N· hm-2 for rice production. Applying ammonium sulfate was better than applying urea for increasing rice yield. The efficiency of nitrogen fertilizer in this experiment was about 41.8-48.5%, and its loss was 22.8-38.1% .

关键词: 森林生物量, 生物量密度, 空间格局, 遥感, 大兴安岭

Key words: forest biomass, biomass density, spatial pattern, remote sensing, the Great Xing’an Mountains.