江西上饶市水稻肥料利用率的空间差异及其影响因素研究
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国家自然科学基金项目(41361049)、土壤与农业可持续发展国家重点实验室开放基金项目(0812201202)、江西省自然科学基金项目(20122BAB204012)资助


Spatial variation and its affecting factors of rice fertilizer use efficiency in Shangrao City of Jiangxi Province
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    摘要:

    依据138个“3414”水稻施肥试验结果,应用ARCGIS和SPSS分析软件,分析了上饶市水稻当季肥料利用率的空间分布及土壤类型、施肥水平、地貌类型和土壤肥力等对水稻肥料利用率的影响。结果表明,上饶市水稻当季氮、磷、钾肥料平均利用率分别为36.86%、18.86%、43.89%,在上饶市的不同区域存在差异,表现为:西南>东南>西北>北部>中部。水稻当季肥料利用率受土壤类型(土种)影响呈现出一定规律性,其中发育较差的潴育型红沙泥田中水稻的当季肥料利用率最高,而发育程度最高的潴育型乌鳝泥田中的利用率最低;不同施肥水平的影响为:随着氮、磷、钾施用量的增加,水稻肥料利用率呈下降趋势;地貌类型的影响为山地>丘陵>平原;不同土壤肥力水平下水稻肥料当季利用率的影响为低肥力>中肥力>高肥力。

    Abstract:

    The data of 138 rice "3414" fertilizer tests conducted in Shangrao City of Jiangxi Province were studied and analyzed for spatial distribution of fertilizer use efficiency of the current rice crop and impacts of its affecting factors, such as soil type, fertilization rate , landform type and soil fertility, using ARCGIS and SPSS analysis software. Results show that in Shangrao City the nitrogen, phosphorus and potassium fertilizer utilization rate of the current rice crop averaged 36.86%, 18.86% and 43.89%, respectively, which varied to some extent from region to region, showing a decreasing order of Southwest > Southeast > Northwest > North > Central. The fertilizer nutrient utilization rate of the current rice crop varied in a certain pattern as affected by soil type (or soil species). It was the highest in the poorly developed Typic Hapli-Stagnic Anthrosols, and the lowest in the highly developed Typic Gleyi-Stagnic Anthrosols; the fertilizer use efficiency of the current rice crop was negatively related to fertilization rate, The higher the fertilization rate, the lower the fertilizer use efficiency; the effect of landform followed the order of plain > hilly land > mountain land; and the effect of soil fertility was also very important, displaying a decreasing order of low fertility > middle fertility > high fertility.

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赵海东,赵小敏,谢林波,郭 熙.江西上饶市水稻肥料利用率的空间差异及其影响因素研究[J].土壤学报,2014,51(1):21-31. DOI:10.11766/trxb201212030499 Zhao Haidong, Zhao Xiaomin, Xie Linbo, Guo Xi. Spatial variation and its affecting factors of rice fertilizer use efficiency in Shangrao City of Jiangxi Province[J]. Acta Pedologica Sinica,2014,51(1):21-31.

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  • 收稿日期:2012-12-03
  • 最后修改日期:2013-09-20
  • 录用日期:2013-09-29
  • 在线发布日期: 2013-10-28
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