| 长期施肥对南方黄泥田土壤磷吸附与解吸的影响 |
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| 引用本文： | 林诚,王飞,林新坚,李清华,何春梅,李昱.长期施肥对南方黄泥田土壤磷吸附与解吸的影响[J].福建农业学报,2011,26(6):1034-1038. |
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| 作者姓名： | 林诚 王飞 林新坚 李清华 何春梅 李昱 |
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| 作者单位： | 福建省农科院土壤肥料研究所/红壤肥力与生态环境福州试验站,福建 福州,350013 |
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| 基金项目： | 福建省科技计划项目——省属公益类科研院所基本科研专项(2010R1024-4);福建省自然科学基金项目(2009J01204);福建省农业科学院青年人才创新基金(2009QA-7) |
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| 摘 要： | 在连续施肥26年南方黄泥田上进行土壤磷的吸附一解吸特征试验.结果表明,不同施肥处理土壤磷的等温吸附曲线与Langmuir方程拟合性较好(P＜0.01).与单施化肥相比,化肥与牛粪或化肥与秸秆长期配施能降低土壤磷吸附亲合力常数(K)、吸附缓冲容量(MBC),提高土壤磷吸附饱和度(DPS)；但土壤P最大吸附量(Xm)二者表...
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| 关 键 词： | 长期施肥 黄泥田 磷 吸附 解吸 |
The Effection of Phosphorus Adsorption and Desorption of Long-term Fertilization on South Yellow Clayey Soil |
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| LIN Cheng
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WANG Fei
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LIN Xin-jian
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LI Qing-hua
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HE Chun-mei
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LI Yu.The Effection of Phosphorus Adsorption and Desorption of Long-term Fertilization on South Yellow Clayey Soil[J].Fujian Journal of Agricultural Sciences,2011,26(6):1034-1038. |
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| Authors: | LIN Cheng WANG Fei LIN Xin-jian LI Qing-hua HE Chun-mei LI Yu |
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| Institution: | (Institute of Soil and Fertilizer,Fujian Academy of Agricultural Sciences,Fuzhou Experimental Station of Red Soil Fertility and Ecological Environment in Fujian,Fuzhou,Fujian 350013,China) |
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| Abstract: | The characterization of adsorption and desorption of soil phosphorus is investigated in the 26th year of long-term fertilization south yellow soil.The result indicated that there is good fitness between the adsorbed curves of the Langmuir equation phosphorus and the Langmuir equation(P<0.01).Compared with single fertilization,long-term applying of both fertilizer and dairy manure or straw can decrease K、MBC and crease DPS.However,there is a crosscurrent between Xm.P which will be desorbed more easily under the combined application of fertilizer and dairy manure when its concentration is low,and that will be opposite as the concentration ascends.Under the combined application of organic fertilizer and chemical fertilizer,P acts as a "headstream" with a low concentration while it acts as a "sea" with a high concentration. |
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| Keywords: | long-term fertilization yellow clayey soil phosphorus adsorption desorption |
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