陇中旱区新修梯田施肥效应研究

王生录; 崔云玲; 张福武; 陈炳东; 杨思存

王生录,崔云玲,张福武,陈炳东,杨思存.陇中旱区新修梯田施肥效应研究[J].干旱地区农业研究,2009,27(1):47~52

陇中旱区新修梯田施肥效应研究

Study on the effect of fertilizi ng on newly-built terrace in dryland area of mid-Gansu

DOI：10.7606/j.issn.1000-7601.2009.01.10

中文关键词: 陇中旱区新修梯田施肥产量

英文关键词:dryland area of mid-Gansu newly-built terrace fertilization yield

基金项目:国家“十一五”科技支撑计划项目(2006BAD25B09)

作者	单位
王生录	Institute of Beer Raw Materials， Gansu Academy of Agricultural Sciences， Lanzhou, Gansu 730070，China
崔云玲	Institute of Soil and Fertilizer，Gansu Academy of Agricultural Sciences，Lanzhou，Gansu 730070，China
张福武	Institute of Beer Raw Materials， Gansu Academy of Agricultural Sciences， Lanzhou, Gansu 730070，China
陈炳东	Science and Technology Association of Gansu Province，Lanzhou, Gansu 730000，China
杨思存	Institute of Soil and Fertilizer，Gansu Academy of Agricultural Sciences，Lanzhou，Gansu 730070，China

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中文摘要:

在甘肃省半干旱山区黄绵土新修梯田上进行了施肥效应试验研究,结果表明:有机肥与氮、磷、钾肥配合施用是提高新修梯田土壤肥力和农作物产量水平的重要农艺措施,可使作物产量提高21.4%~41.6%,纯收入增加283.0~2 557.2元/hm²,地上部分吸收纯氮、五氧化二磷、氧化钾量分别提高52.8%~70.1%、115.0%~116.7%、16.8%~92.7%,土壤水分利用率提高32.5%~37.1%,耕层土壤速效养分含量亦得到大幅度提高。

英文摘要:

The experiment was carried out on fertilization and soil fertility of Loessial soil of new ly-built ter-race in semiarid mountain areas in Gansu Provice. The results showed that cooperative application of organic fertilizer，nitrogen， phosphorus and potassium w as an important agronomic measure to increase soil fertility and crops’yield of new ly built terrace. It could increase the crop yield by 21.4%~41.6%，the economical net in- come by 283. 0~2557.2 yuan/ hm², and the absorption of N，P₂O₅ and K₂O above ground by 52.8%~70.1%, 115.0%~116.7% and 16.8%~92.7%, respectively. The utilty of soil water w as enhanced by 32.5%~37.1%, the topsoil available nutrients content were greatly improved.

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