| 降雨对贵州坡耕地不同种植制度钾素的影响 |
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| 引用本文： | 程李,;王文华. 降雨对贵州坡耕地不同种植制度钾素的影响[J]. 耕作与栽培, 2014, 0(4): 38-39 |
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| 作者姓名： | 程李, 王文华 |
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| 作者单位： | [1]贵州省气象局,贵州贵阳550001; [2]贵州省土壤肥料研究所,贵州贵阳550006 |
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| 基金项目： | 贵州省国际科技合作计划＂坡地水土保持复合植物群落结构的研究＂（黔科合外G字[2011]7031号） |
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| 摘 要： | 通过田间试验和分析测试,研究了降雨对坡耕地3种不种植制度钾素的影响.结果表明：各种种植制度的钾素流失程度不一样,从高到低的排列为：农民习惯＞横坡种植＞条带种植.改良的种植制度降低了水土流失,减少了钾素流失,与农民习惯相比可减少钾素流失50％～65％.
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| 关 键 词： | 钾素 坡耕地 横坡种植 条带种植 |
The Effects of Rainfall on Potassium of Sloping Farmland by Different Cropping Systems in Guizhou |
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| Affiliation: | CHENG Li, WANG Wen-hua (1. Meteorological Bureau of Cruizhou Province, Guiyang, Guizhou 550001, China ;2 . Soil and Fertilizer Institute of Guizhou Province, Guiyang, Guizhou 550006 ,China) |
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| Abstract: | The effect of rainfall on potassium of sloping farmland by three kinds of cropping systems were studied by field experiment and analysis. The results showed that the extent of the loss of potassium/various cropping systems are different, arranged from highest to lowest： farmers accustomed〉 cross slope planting〉 strip planting. Improved cropping systems to reduce soil erosion, reducing the loss of potassium can reduce potassium loss compa, red with the farmers＇ application by 50% to 65%. |
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| Keywords: | potassium sloping farmland cross slope＇euhivation planting strips |
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