| 耕作对水稻土磷素的影响研究 |
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| 引用本文： | 黄建国 袁玲. 耕作对水稻土磷素的影响研究[J]. 西南大学学报(自然科学版), 1994, 16(5): 475-477 |
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| 作者姓名： | 黄建国 袁玲 |
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| 作者单位： | 西南农业大学土化系 |
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| 摘 要： | 稻田垄作，土壤有效磷和有机磷含量降低，闭蓄态磷（ｒ－Ｐ）提高，水稻吸磷量不变。垄作水稻可以利用Ｆｅ－Ｐ、Ａｌ－Ｐ、Ｃａ－Ｐ和ｒ－Ｐ，常规耕作水稻仅利用Ｃａ－Ｐ、Ａｌ－Ｐ和Ｆｅ－Ｐ。
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| 关 键 词： | 垄作 耕翻 水稻土 磷 |
EFFECTS OF TILLAGE ON P STATUS IN FADDY SOILS |
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| Huang Jianguo, Yuan Ling. EFFECTS OF TILLAGE ON P STATUS IN FADDY SOILS[J]. Journal of southwest university (Natural science edition), 1994, 16(5): 475-477 |
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| Authors: | Huang Jianguo Yuan Ling |
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| Abstract: | In the present study,available P and organic P in ridge-tilled paddy soils were found todecrease,reduced P(r-P) to increase while the uptake of P by the rice plants did not change ascompared with the control where traditional tillage was practiced.The rice plants in traditionallytilled paddy soils utilized mainly Fe-P,Ca-P and Al-P,while in ridged-tilled paddy soils they wereable to take up all forms of inorganic P,such as Al-P,Fe-P,Ca-P well as as r-P, which kept highamount of P absorption under low available P conditions. |
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| Keywords: | ridge tillage ploughing rice soils phosphoras |
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