| 淹水条件下不同氮肥对水稻土中磷肥转化的动态影响 |
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| 引用本文： | 于飞,周健民,王火焰,陈小琴,杜昌文.淹水条件下不同氮肥对水稻土中磷肥转化的动态影响[J].中国土壤与肥料,2006(6):29-32. |
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| 作者姓名： | 于飞 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： | 国家自然科学基金;国家重点基础研究发展计划(973计划) |
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| 摘 要： | 利用室内土培试验研究了淹水条件下不同氮肥对水稻土（黄泥土）中磷肥转化的动态影响。结果表明，培养1d时，不同氮肥对土壤有效磷含量无显著影响，但显著降低土壤的水溶性磷含量；之后，硝酸铵和硝酸钙处理显著增加土壤有效磷和水溶性磷含量；氯化铵和硫酸铵处理表现降低土壤水溶性磷含量的作用，而对土壤有效磷含量仍无显著影响；尿素处理15d和35d时有增加土壤有效磷和水溶性磷含量的作用，而70d和105d时土壤有效磷和水溶性磷含量与对照处理差异不大。
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| 关 键 词： | 氮肥 磷肥 转化 水稻土 淹水 |
| 文章编号： | 1673-6257（2006）06-0029-04 |
| 收稿时间： | 2005-06-09 |
| 修稿时间： | 2005-06-09 |
Effect of different nitrogen fertilizers on dynamic transformation of phosphorus fertilizer in paddy soil under flooding condition |
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| YU Fei,ZHOU Jian-min,WANG Huo-yan,CHEN Xiao-qin,DU Chang-wen.Effect of different nitrogen fertilizers on dynamic transformation of phosphorus fertilizer in paddy soil under flooding condition[J].Soil and Fertilizer Sciences in China,2006(6):29-32. |
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| Authors: | YU Fei ZHOU Jian-min WANG Huo-yan CHEN Xiao-qin DU Chang-wen |
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| Institution: | State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, GAS, Nanjing 210008 |
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| Abstract: | The effect of different nitrogen fertilizers on dynamic transformation of phosphorus fertilizer in paddy soil under flooding condition was studied in indoor incubation experiments.The results showed that all nitrogen fertilizers hardly influenced soil available phosphorus on the first day incubation,while greatly reduced soil solution phosphorus.And then,the NH-4NO-3 and Ca(NO-3)-2 treatments increased both soil available and solution phosphorus notably,and the(NH-4Cl) and(NH-4)-2SO-4 treatments decreased soil solution phosphorus a little,affected soil available phosphorus little.And to the urea treatment,both soil available and solution phosphorus were increased on the fifteenth and thirty-fifth day incubation,and had little difference from the control on the seventieth and one hundred and fifth day incubation. |
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| Keywords: | ntrogen fertilizers phosphorus fertilizers dynamic transformation paddy soil flooding |
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