| 隔沟交替灌溉对土壤磷及其形态的影响 |
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| 引用本文： | 李中阳,樊向阳,杜臻杰,李彩霞.隔沟交替灌溉对土壤磷及其形态的影响[J].灌溉排水学报,2011,30(6):36-38. |
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| 作者姓名： | 李中阳 樊向阳 杜臻杰 李彩霞 |
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| 作者单位： | 1. 中国农业科学院农田灌溉研究所,河南新乡453002／中国农业科学院河南新乡农业水土环境野外科学观测试验站,河南新乡453002／中国农业科学院农业水资源高效安全利用重点开放实验室,河南新乡453002
2. 中国农业科学院农田灌溉研究所,河南新乡,453002 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 为阐明隔沟交替灌溉（AFI）对土壤磷质量分数及其形态的影响，以常规沟灌（CFI）为对照，研究了CFI、AFI二种灌溉方式下垄位、沟位土壤全磷、速效磷和有机磷、无机磷各组分的变化情况。AFI垄位全磷质量分数显著小于CFI，其垄位、沟位速效磷质量分数都分别显著低于CFI的垄位和沟位，分别降低了14．7％、23．1％。AFI...
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| 关 键 词： | 常规沟灌 隔沟交替灌溉 磷 有机磷 无机磷 |
Effect of Alternative Furrow Irrigation on Soil Phosphorus and Its Forms |
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| Abstract: | In order to investigate the effect of alternative furrow irrigation(AFI) on soil phosphorus(P) and its forms,changes of total P,Olsen-P,organic P and inorganic P forms under conventional furrow irrigation(CFI) and AFI treatments were studied.Compared with CFI,AFI decreased the soil total P concentration at ridge.Olsen-P decreased by 14.7%、23.1% under AFI treatment at ridge and furrow,respectively.AFI decreased the moderately labile organic P and Ca8-P at ridge and furrow.There also were significant decreases in O-P、Al-P at ridge under AFI treatment.AFI make a great contribution to accelerated activation and release of accumulative phosphorus in soils. |
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| Keywords: | conventional furrow irrigation alternative furrow irrigation phosphorus organic phosphorus inorganic phosphorus |
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