| 磷肥在(土娄)土中的形态转化及其对土壤有效磷的影响 |
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| 引用本文： | 华天懋,李昌纬,赵伯善,李辉桃.磷肥在(土娄)土中的形态转化及其对土壤有效磷的影响[J].西北农业学报,1994,3(4):64-69. |
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| 作者姓名： | 华天懋 李昌纬 赵伯善 李辉桃 |
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| 作者单位： | 西北农业大学土化系, 陕西杨凌712100;西北农业大学土化系, 陕西杨凌712100;西北农业大学土化系, 陕西杨凌712100;西北农业大学土化系, 陕西杨凌712100 |
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| 摘 要： | 10年定位试验研究结果表明,在长期施磷的条件下,陕西土耕层的磷素形态分布与该土壤性质一致.有机磷、无机磷在全磷中所占比例相对稳定,Ca-P仍是无机磷的主要形态.3组Ca-P的含量顺序是Ca-PⅢ>Ca-PⅡ>Ca-PⅠ.Al-P含量增长较多,Fe-P含量相对稳定.10年中施入土壤的磷素有41.6%在耕层中转化为各种形态的矿质磷,其中Al-P、Ca-PⅠ及Ca-PⅡ的含量都与土壤有效磷含量呈极显着的相关关系.同时,有机磷含量与土壤有效磷也有显着的相关关系.化学磷肥是提供作物磷素营养、维持上壤磷素平衡的主要磷源.
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| 关 键 词： | 娄土 土壤有效磷 磷肥 转化 |
| 收稿时间： | 1994/2/28 0:00:00 |
MORPHOLOGICAL TRANSFORMATION OF PHOSPHORUS FERTIL1ZER IN LOUTU SOIL AND EFFECT OF IT ON SOIL EFFECTIVE PHOSPHOTE |
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| Hua Tianmao,Li Changwei,Zhao Baishan and Li Huitao.MORPHOLOGICAL TRANSFORMATION OF PHOSPHORUS FERTIL1ZER IN LOUTU SOIL AND EFFECT OF IT ON SOIL EFFECTIVE PHOSPHOTE[J].Acta Agriculturae Boreali-occidentalis Sinica,1994,3(4):64-69. |
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| Authors: | Hua Tianmao Li Changwei Zhao Baishan and Li Huitao |
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| Institution: | Depertment of Soil and Agrichemistry of Northwestern Agricultural University, Yangling Shaanxi 712100;Depertment of Soil and Agrichemistry of Northwestern Agricultural University, Yangling Shaanxi 712100;Depertment of Soil and Agrichemistry of Northwestern Agricultural University, Yangling Shaanxi 712100;Depertment of Soil and Agrichemistry of Northwestern Agricultural University, Yangling Shaanxi 712100 |
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| Abstract: | |
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| Keywords: | Loutu soil Phosphorus morphology Soil effective phosphate |
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