| 施磷对滨海盐土无机磷组分的动态影响 |
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| 引用本文： | TANG Yan,汤炎,赵海涛,封克,汪晓丽,盛海君.施磷对滨海盐土无机磷组分的动态影响[J].土壤通报,2007,38(1):77-80. |
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| 作者姓名： | TANG Yan 汤炎 赵海涛 封克 汪晓丽 盛海君 |
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| 作者单位： | 扬州大学,环境科学与工程学院,江苏,扬州,225009 |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 采用蒋柏藩、顾益初提出的土壤无机磷组分测定方法,在50d的培养过程中对滨海盐土的各无机磷组分进行了跟踪测定。结果表明:施入盐土中的无机磷在短期内主要增加土壤中的Ca2-P和Ca8-P的含量,而对A1-P、Fe-P和O-P的影响较小;施入盐土的无机磷首先转化成Ca2-P,然后再向Ca8-P、Ca10-P、Al-P、Fe-P和O-P转化;培养过程中,水分和温度的有利条件促进了土壤微生物的活动,加强了微生物对无机磷的固定。
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| 关 键 词： | 盐土 磷转化 无机磷组分 |
| 文章编号： | 0564-3945(2007)01-0077-04 |
| 修稿时间： | 2006年2月8日 |
Effects of Phosphorus Fertilizer Application on the Distribution of Inorganic Phosphorus Fractions in A Marine Saline Soil |
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| TANG Yan.Effects of Phosphorus Fertilizer Application on the Distribution of Inorganic Phosphorus Fractions in A Marine Saline Soil[J].Chinese Journal of Soil Science,2007,38(1):77-80. |
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| Authors: | TANG Yan |
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| Abstract: | Marine saline soil amended with inorganic phosphorus(Pi) fertilizer was cultured under moist condition in laboratory for 50 days.Thereafter,soil samples were collected and contents of Pi fractions were determined by Jiang-Gu's method.The results indicated that during the incubation periode the application of phosphorus fertilizer increased the contents of Ca2-P and Ca8-P significantly,but had little effect on those of A1-P,Fe-P and O-P.The fertilized phosphorus was at first transformed into Ca2-P,and then turned to Ca8-P,Ca10-P,Al-P,Fe-P and O-P during the incubation course.In the incubation process,the advantageous moisture content and the temperature condition promoted soil microorganism's activity,and strengthened inorganic phosphorus fixation by microorganisms. |
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| Keywords: | Saline soil Phosphorus transformation Inorganic phosphorus fractions |
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