地理学报 ›› 1998, Vol. 53 ›› Issue (1): 32-41.doi: 10.11821/xb199801004

• 论文 • 上一篇    下一篇

中国农用化肥氮磷钾需求比例的研究

陈同斌1, 陈世庆1, 徐鸿涛2, 黄诗铿2, 陈炎2   

  1. 1. 中国科学院地理研究所农业生态与环境技术试验站,北京100101;
    2. 中国国际工程咨询公司工程咨询研究所,北京100044
  • 收稿日期:1999-06-01 修回日期:1996-12-01 出版日期:1998-01-15 发布日期:1998-01-15
  • 基金资助:
    国家计划委员会专项研究课题

SIMULATION STUDY ON RATIOS OF NITROGEN, PHOSPHORUS AND POTASSIUM FERTILIZERS REQUIRED IN THE CROP PRODUCTION IN CHINA

Chen Tongbin1, Chen Shiqing1, Xu Hongtao2, Huang Shikeng2, Chen Yan2   

  1. 1. Institute of Geography, Chinese Academy of Sciences, Beijing 100101;
    2. Institute of Engineering Consultation, China International Consulting Company for Engineering, Beijing 100044
  • Received:1999-06-01 Revised:1996-12-01 Online:1998-01-15 Published:1998-01-15

摘要: 本研究以作物能够吸收的有效养分为基础,根据作物生长的养分吸收量计算单位播种面积上农作物的养分需要量,逐一差减土壤和有机肥提供的养分量,求出单位播种面积上农作物对化肥养分的需要量。在广泛查阅和搜集前人试验资料的基础上,对搜集到的原始数据进行认真的分析、整理,然后采用计算机模拟方法进行预测。预测结果指出,2000年农用化肥氮磷钾的消费比例为1∶0.38∶0.25.

关键词: 化肥需求比例, 作物生产, 有机肥, 土壤养分供应, 有效养分, 模拟模型

Abstract: Based on the mass balance of available nutrients and the all experimental results published later after 1980, the present study simulated nutrient uptake, and nutrient supplies from soils, applied chemical fertilizers and manures in the whole China; and then predicted the optimal ratios of N, P, K fertilizers required for crop production in the country. It is predicted that the optimal ratios of N∶P2O5∶K2O would be 1:0.38:0.25 for N, P, K fertilizers in the year of 2000. It is indicated that chemical fertilizers and manures contributed 34% and 18% to the total crop N demand, 18% and 25% to the total crop P demand, 13% and 19% to the total crop K demand, respectively, while the other percentages were occupied by soil supplies. Manures which are traditionally employed as main fertilizers in China supplied a large quantities of nutrients, especially K and P, to crop production. Therefore, the application of manures had great effects on the prediction of demands and ratios of chemical fertilizers although little attention on this disturbance has been paid to the prediction of fertilizer demands until now.

Key words: requirement of chemical fertilizer, crop production, manure, soil nutrient supply, available nutrients, simulation model

中图分类号: 

  • S143