RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN >> 2017, Vol. 26 >> Issue (01): 74-81.doi: 10.11870/cjlyzyyhj201701009

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ECONOMIC BENEFITS OF FORMULATED FERTILIZATION OF RICE AND RAPE IN QIN-BA MOUNTAIN AREA

ZHAO Zuo-ping1,2,3, LIU Fen2, DUAN Min1,3, TONG Yan-an2   

  1. 1. College of Chemical and Environment, Science Shaanxi Sci-Tech University, Hanzhong 723001, China;
    2. College of Natural Resources and Environment, Northwest A & F University, Yangling 712100, China;
    3. Qinba Mountains of Bio-Resource Collaborative Innovation Center of Southern Shaanxi province, Hanzhong 723001, China
  • Received:2016-05-26 Revised:2016-07-31 Online:2017-01-20
  • Supported by:
    Special Project of National Nonprofit Sector (Agriculture) of China(201203045);2011collaborative technology innovation in Shaanxi province(QBXT-Z(P)-15-5);Key Laboratory for Agricultural Environment Open Foundation (201501)

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Abstract: We investigated the current situation of fertilization and nutrients resource input problems of households on the main crops in the Qin-Ba mountain area, which is the main rice and rape production region in Shaanxi Province. The effect of optimized fertilization, farmers' fertilizer practices and no fertilizer on the yield, economic profit, fertilizer contribution rate (FCR) and agronomy efficiency (AE) of rice and rape production under present conditions, field experiments of rice and rapeseed were conducted from 2009 to 2013 in the Qin-Ba mountain area. Compared with farmers' fertilizer practices, the yields of rice and rapeseed were improved about 703 and 341 kg·hm-2 by optimized fertilization, the yield increase rates were 8.3% and 14.9%. The FCR to rice and rape seed by optimized fertilization were 5.2 and 7.1 percentage higher, corresponding to 0.5 and 0.6 kg·kg-1 higher of AE than farmers' fertilizer practices, respectively. The yields of rice and rapeseed could be increased by 85 and 69 thousand tons respectively through optimized fertilization, and the economic profit could be totally improved about 4.32 billion yuan in Qin-Ba mountain area. Optimized fertilization was one of the important measures to increase agricultural production, improving farmers' income and fertilizer use efficiency.

Key words: Qin-Ba mountain area, crops, formulated fertilizer, economic profit, agronomy efficiency

CLC Number: 

  • S147.5
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