| 耕作制度对紫色土养分循环的影响 |
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| 引用本文： | 朱波,李同阳,张先婉. 耕作制度对紫色土养分循环的影响[J]. 山地学报, 1996, 0(Z1) |
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| 作者姓名： | 朱波 李同阳 张先婉 |
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| 作者单位： | 中国科学院、水利部成都山地灾害与环境研究所，中国科学院、水利部成都山地灾害与环境研究所，中国科学院、水利部成都山地灾害与环境研究所 成都 610041，成都 610041，成都 610041 |
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| 基金项目： | 国家自然科学基金(项目号:49601009) |
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| 摘 要： | 用定位试验结果,比较聚土免耕、早三熟、平作等耕作制对紫色土氮磷钾养分循环结构和强度的影响.紫色土养分主要通过作物收获输出,钾素淋失突出,聚土免耕养分输入量大,其中有机物料形式的氮、磷各为336.64kg/hm~2,48.48kg/hm~2,养分输入略大于支出.
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| 关 键 词： | 养分循环 聚土免耕 紫色土 |
EFFECTS OF CULTIVATION SYSTEM ON NUTRIENT CYCLE OF PURPLE SOIL |
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| Zhu Bo Li Tongyang Zhang Xianwan. EFFECTS OF CULTIVATION SYSTEM ON NUTRIENT CYCLE OF PURPLE SOIL[J]. Journal of Mountain Research, 1996, 0(Z1) |
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| Authors: | Zhu Bo Li Tongyang Zhang Xianwan |
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| Abstract: | A comparative study on effects of various cultivation system on nutrient cycle of purple soil was conducted according to long term experiments. Results showed,input amount of nutrients goes beyond output amount with high fluxes of Seasonal No-Tillage Ridge Cropping System (SNTRCS),in which 336. 64kg/hm2, 4. 48kg/hm2, input of nitrogen and phosphorus are attributed to organic materials,and harvest is main output of nutrients. Results of modeling study indicated nutrient input of purple rock is the most special character in nutrient cycle of purple soil with 7. 50kg/hm2,18. 76kg/hm2,321. 60 kg/hm2. N,P,K released from rock respectively. |
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| Keywords: | nutrient cycle purple soil SNTRCS |
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