| 肥际微域土壤的室内培养法研究磷对石灰性潮土的影响 |
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| 引用本文： | 王新民,魏志华,刘奎,介晓磊,侯彦林.肥际微域土壤的室内培养法研究磷对石灰性潮土的影响[J].土壤通报,2010(2). |
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| 作者姓名： | 王新民 魏志华 刘奎 介晓磊 侯彦林 |
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| 作者单位： | 郑州牧业工程高等专科学校;中国科学院研究生院资源与环境学院;加拿大农业部温室与加工作物研究中心; |
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| 基金项目： | 河南省杰出青年基金项目(074100510018); 河南省科技攻关项目(0624040003)资助 |
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| 摘 要： | 采用室内恒温培养试验法对施入不同量磷(P)肥的石灰性潮土的各种理化特性进行为期180d的模拟研究,结果表明,磷肥的加入使土壤pH值发生了显著的变化,由原来的8.76下降到最小值7.36。高施P量处理F1、F2、F3、F4和F5的Olsen-P浓度分别为2338.5、1576.7、713.6和316.9mgkg-1,0.01molL-1 KCl溶液提取P浓度分别为1226.3、1189.2、880.2和382.9mgkg-1。各处理Olsen-P和0.01molL-1KCl溶液提取P浓度在同一培养时间随施P量的增加而增大,而对同一施P量处理而言,随着培养时间的延长其值呈下降趋势,且随施P量增大下降幅度加大。培养土中有机磷含量随培养时间延长而增加。各处理的无机磷分级体系中,钙磷在无机磷中占绝对优势,Ca2-P、Ca8-P和Al-P含量随P肥加入量的增加而增大,Fe-P含量很小,O-P含量和Ca10-P含量变化不大,随着培养时间的延长,Ca2-P含量减少较多,而Ca8-P含量大量增加,且Ca8-P含量均大于Ca2-P含量。
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| 关 键 词： | 潮土 pH值 Olsen-P和0.01molL-1 KCl提取P 有机磷 无机磷分级 |
Effects of Phosphorus Fertilization on the Microzone Characteristics of a Calcareous Alluvial Soil Using Incubation Method |
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| WANG Xin-min,,WEI Zhi-hua,LIU Kui,JIE Xiao-lei,HOU Yan-lin.Effects of Phosphorus Fertilization on the Microzone Characteristics of a Calcareous Alluvial Soil Using Incubation Method[J].Chinese Journal of Soil Science,2010(2). |
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| Authors: | WANG Xin-min WEI Zhi-hua LIU Kui JIE Xiao-lei HOU Yan-lin |
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| Institution: | WANG Xin-min1,2,3,WEI Zhi-hua1,LIU Kui3,JIE Xiao-lei1,HOU Yan-lin2(1.Zhengzhou College of Animal Husb,ry Engineering,Zhengzhou 450011,China,2.Graduate School of Chinese Academy of Sciences,Beijing 100039,3.Greenhouse , Processing Crops Research Center,Agriculture & Agri-Food Canada,Ontario N0R 1G0,Canada) |
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| Abstract: | A study on the changes of the physical and chemical properties of calcareous soils receiving different rates of phosphorus fertilizer were carried out using incubation method for 180 days.The main results showed that soil pH decreased from 8.76 to 7.36 due to the application of P fertilizer.The content of Olsen-P and 0.01 mol L-1 KCl extracted P(KCl-P) were very high for the treatments receiving high phosphorus rates.For the F1,F2,F3 and F4 treatments,the contents of Olsen-P were 2338.5 mg kg-1,1576.7 mg kg... |
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| Keywords: | Calcareous alluvial soils pH value Olsen-P and KCl-P Organic phosphorus Inorganic P fractions |
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