| 石灰性土壤肥际磷酸二铵的转化与肥料磷的迁移 |
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| 引用本文： | 金亮,周健民,王火焰,陈小琴,杜昌文. 石灰性土壤肥际磷酸二铵的转化与肥料磷的迁移[J]. 磷肥与复肥, 2008, 23(5): 14-18 |
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| 作者姓名： | 金亮 周健民 王火焰 陈小琴 杜昌文 |
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| 作者单位： | 土壤与农业可持续发展国家重点实验室,中国科学院南京土壤研究所,江苏,南京,210008;中国科学院研究生院,北京,100049;土壤与农业可持续发展国家重点实验室,中国科学院南京土壤研究所,江苏,南京,210008 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)，国家自然科学基金 |
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| 摘 要： | 以肥料与土壤接触的肥际为切入点,通过土柱培养实验,研究磷酸二铵在石灰性潮土肥际各形态无机磷的转化、含量、分布及肥料磷的迁移。旨在探讨磷酸二铵在石灰性土壤中的转化特性及肥料磷的固定机制,揭示此类土壤中磷肥有效性的主要限制因素,为磷肥合理施用和高效磷肥的研制提供理论支持。
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| 关 键 词： | 石灰性土壤 肥际 磷酸二铵 磷的转化 磷的迁移 |
Transformation and translocation of fertilizer-P with DAP application at fertisphere in calcareous soil |
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| JIN Liang,ZHOU Jian-min,WANG Huo-yan,CHEN Xiao-qin,DU Chang-wen. Transformation and translocation of fertilizer-P with DAP application at fertisphere in calcareous soil[J]. Phosphate & Compound Fertilizer, 2008, 23(5): 14-18 |
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| Authors: | JIN Liang ZHOU Jian-min WANG Huo-yan CHEN Xiao-qin DU Chang-wen |
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| Abstract: | Transformation,contents,and distribution of various form of phosphorus with DAP application in calcareous fluvo-aquic soil and translocation of fertilizer phosphorus are studied through soil column incubation experiment beginning within in the fertisphere which is the soil zone immediately contacting with fertilizer. Objective is to explore transformation characteristics of DAP in calcareous soil and mechanism of fertilizer phosphorus fixation, and to find key factors which affect the efficiencies of phosphate fertilizers in such kind of soil. This provides a theoretical base for proper application of phosphate fertilizers and development of high effective phosphate fertilizer. |
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| Keywords: | calcareous soil fertisphere diammonium phosphate( DAP) transformation of phosphate translocation of phosphate |
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