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Summary on the Index System of Ecological Balanced Fertilization for Maize

             

摘要

This paper studied the index system of ecological balanced fertilization for maize by data mining method based on data of"3414 fertilizer field trials"of maize by published papers from national soil testing and recommendation since 2005.The results and conclusions were as follows:①the optimum N,P and K fertilization amounts of maize were within the normal range,and the application of this standard could not cause obvious non-point source pollution.②The conversion rates of N,P and K of maize were respectively higher than their respective utilization ratios under the optimum fertilization amount.③At present,the soil N for maize was in an absence state,and soil P and K were in a state of not obvious lack.④Optimum N,P and K fertilization amounts were significantly negatively correlated with their respective conversion ratios,respectively,and it provided a quantitative scientific basis for calculating the optimum fertilization amount according to the nutrient conversion rate.Each province can use this significant relationship to guide the determination of the average optimal fertilization amounts of N,P and K and the optimal production in the province.⑤The research results of nutrient conversion rate showed that any excessive application of N,P and K would reduce their own nutrient conversion rates,and may also reduce the conversion rates of other nutrients.The characteristics of crops absorbing N,P and K proportionally required that soil nutrients must be balanced in order to obtain high production,and fertilization was only the main means to regulate soil nutrient balance.

著录项

  • 来源
    《气象与环境研究:英文版》 |2020年第5期|P.55-61|共7页
  • 作者单位

    Agro-Environmental Protection Institute Ministry of Agriculture and Rural Affairs Tianjin 300191 China;

    Guangxi Geographical Indication Crops Research Center of Big Data Mining and Experimental Engineering Technology Nanning Normal University Nanning 530001 ChinaGuangxi Key Laboratory of Earth Surface Processes and Intelligent Simulation Nanning Normal University Nanning 530001 ChinaKey Laboratory of Environment Change and Resources Use in Beibu Gulf(Nanning Normal University) Nanning 530001 China;

    Guangxi Geographical Indication Crops Research Center of Big Data Mining and Experimental Engineering Technology Nanning Normal University Nanning 530001 ChinaGuangxi Key Laboratory of Earth Surface Processes and Intelligent Simulation Nanning Normal University Nanning 530001 ChinaKey Laboratory of Environment Change and Resources Use in Beibu Gulf(Nanning Normal University) Nanning 530001 China;

    Guangxi Geographical Indication Crops Research Center of Big Data Mining and Experimental Engineering Technology Nanning Normal University Nanning 530001 ChinaGuangxi Key Laboratory of Earth Surface Processes and Intelligent Simulation Nanning Normal University Nanning 530001 ChinaKey Laboratory of Environment Change and Resources Use in Beibu Gulf(Nanning Normal University) Nanning 530001 China;

    Agro-Environmental Protection Institute Ministry of Agriculture and Rural Affairs Tianjin 300191 China;

    Agro-Environmental Protection Institute Ministry of Agriculture and Rural Affairs Tianjin 300191 China;

    Agro-Environmental Protection Institute Ministry of Agriculture and Rural Affairs Tianjin 300191 China;

    Guangxi Geographical Indication Crops Research Center of Big Data Mining and Experimental Engineering Technology Nanning Normal University Nanning 530001 ChinaGuangxi Key Laboratory of Earth Surface Processes and Intelligent Simulation Nanning Normal University Nanning 530001 ChinaKey Laboratory of Environment Change and Resources Use in Beibu Gulf(Nanning Normal University) Nanning 530001 China;

    Guangxi Geographical Indication Crops Research Center of Big Data Mining and Experimental Engineering Technology Nanning Normal University Nanning 530001 ChinaGuangxi Key Laboratory of Earth Surface Processes and Intelligent Simulation Nanning Normal University Nanning 530001 ChinaKey Laboratory of Environment Change and Resources Use in Beibu Gulf(Nanning Normal University) Nanning 530001 China;

  • 原文格式 PDF
  • 正文语种 chi
  • 中图分类 中国工业经济;
  • 关键词

    Optimum yield; Optimum fertilization amount; Nutrient conversion rate; Fertilizer utilization ratio; Relative abundance-deficiency value of soil nutrient;

    机译:最佳产量;最佳施肥量;营养转化率;肥料利用率;土壤营养素的相对丰富缺乏价值;
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