| 石灰性土壤的某些性质与作物对磷肥反应的关系 |
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| 引用本文： | 李生秀,赵伯善,李昌伟.石灰性土壤的某些性质与作物对磷肥反应的关系[J].西北农林科技大学学报(社会科学版),1992,20(Z1). |
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| 作者姓名： | 李生秀 赵伯善 李昌伟 |
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| 作者单位： | 西北农业大学农化系 陕西杨陵·712100
(李生秀，赵伯善)，西北农业大学农化系 陕西杨陵·712100(李昌伟) |
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| 摘 要： | 采用多种作物、多种土壤进行盆栽和大田试验表明,作物的磷肥肥效既和土壤因子有关,也和作物因子有关,而作物因子从属于土壤因子。在土壤因子中,土壤有效磷既决定着小麦,也决定其他作物磷肥肥效的有无及大小;土壤有效氮在一定程度上影响着非豆科作物(小麦)磷肥效果的大小,而对豆科作物的磷肥肥效无影响;土壤的其他因子,既与小麦的磷肥肥效无关,也与其他作物的磷肥效无关。
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| 关 键 词： | 有效磷 有效氮 磷肥肥效 豆科作物 非豆科作物 |
The Relationships Between Some Properties of Calcarious Soil and Crop Responses to Phosphate Fertilzer |
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| Li Shengxiu Zhao Boshan Li Changwei.The Relationships Between Some Properties of Calcarious Soil and Crop Responses to Phosphate Fertilzer[J].Journal of Northwest Sci-Tech Univ of Agr and,1992,20(Z1). |
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| Authors: | Li Shengxiu Zhao Boshan Li Changwei |
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| Abstract: | Several soils and crops were used to carry out pot and field experiments to investigate the relationships between P fertilizer efficiency and soils as well as crops. The results obtained show that P fertilizer efficiency was not only related to soils, but also to crops. Of those, the main factor affecting the efficiency was soils while crops were subject to them. Among the soil factors, the available P in soil was the major one determ-ing the fertilizer efficiency and its magnitude not only to wheat, but also to other crops. To certain extent, available N in soil affected non-legume crops on the efficiency with no effect on the efficiency for legume crops. The other soil factors had neither correlation with wheat response to P fertilizer, nor correlation with other crop responses to P fertilizer. |
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| Keywords: | available P available N P fertilizer efficiency legume crops non-legume crops |
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