Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Guangdong Agricultural Sciences》 2007-11
Add to Favorite Get Latest Update

Study on the phosphorus sorption-desorption characteristics of red soils and its environmental impact

SHAO Xing-hua,ZHANG Jiang-zhong(Shangrao Normal College,Shangrao 334000 China)  
The characteristics of phosphorus(P) sorption-desorption and its environmental impact were investigated in red soils(field with tillage practices for a long time and field with tillage practices for 2~3 years).The results indicated that the two soils had strong capacity to adsorb phosphorus.This capacity with the concentration of phosphorus increased.field with tillage practices for a long time released more phosphorus than that of tillage practices for 2~3 years.The content of phosphorus desorption of two soils was enhanced with the increasing of phosphorus adsorption,in other words,release of phosphorus depended on phosphorus saturation degree.Phosphorus adsorption curves could be well described by Langmuir equation.Field with tillage practices for a long time had phosphorus saturation degree lower 1.5% than 25%,an environmentally sensitive threshold.field with tillage practices for a long time should be applied in accordance with the expected demand for phosphate fertilizer.field with tillage practices for 2~3 years had phosphorus saturation only 9.6%.In order to achieve high-yield,soil use more phosphorus fertilizer.
【Fund】: 江西省自然科学基金项目(0630103);; 江西省教育厅项目([2007]346号)
【CateGory Index】: X52
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
Chinese Journal Full-text Database 8 Hits
1 DU Li-yu et al (College of Land and Environment,Shenyang Agricultural University,Shenyang,Liaoning 110161);Characteristics of Phosphours-aborption in Soil in Long-term Location Experiment[J];Journal of Anhui Agricultural Sciences;2007-03
2 DU li-yu,LIANG Chen-hua,PAN Da-wei(College of Land and Environment,Shenyang Agricultural University, Liaoning 110161,China);Characteristics of Desorption of Soil Phosphorus in Long-Term Experiment in Vegetable Greenhouse[J];Northern Horticulture;2007-08
3 JIANG Feng-juan1 TAN jing1 SUN Qing-ye 1 LI Miao2 WANG Wei1(1 Anhui Key Laboratory of Eco-Engineering and Bio-Technique, School of Life Science, Anhui University, Hefei, 230039, China;2 School of Chemistry and Materials, University of Science and Technology of China, Hefei, 230026, China);OXIDIZED COPPER MINE TAILINGS AND ITS ADSORPTION ON PHOSPHATE FROM AQUEOUS SOLUTION[J];Environmental Chemistry;2008-05
4 LI Yue-fen~(1,2) YANG You-de~(1,2),ZHAO Lan-po~2 JI Dong-mei~1 (1.College of Earth Science,Jilin University,Changchun 130061,China; 2.College of Resources and Environmental Science,Jilin Agricultural University,Changchun 130118,China);Effect of Aluminum Sulfate on Adsorption Properties of Phosphorus in Soda Salinealkali Soil[J];Journal of Jilin Agricultural University;2007-04
5 LI Yuan-wei,DENG Shi-huai,WU Jun-ying,ZHENG Ren-hong,LONG Yong-bo(Department of Environmental Science and Engineering,Sichuan Agricultural University,Yaan 625014,China);Adsorption Characteristics of Phosphorus in Substrate of a Constructed Wetland[J];Journal of Agro-Environment Science;2006-S2
6 GAN Fang-qun1,3,ZHOU Jian-min1,WANG Huo-yan1,DONG Yuan-hua1,2,LIU Yun1,2 (1.State Key Laboratory of Soil and Sustainable Agriculture,Institute of Soil Science,Chinese Academy of Sciences,Nanjing 210008,China;2.Joint Open Laboratory of Soil and the Environment,Institute of Soil Science,Chinese Academy of Sciences and Hongkong Baptist University,Nanjing 210008,China;3.Graduate University of Chinese Academy of Sciences,Beijing 100049,China);Adsorption of Phosphorus on Clay Minerals and Its Application in Water Decontamination[J];Journal of Agro-Environment Science;2007-S2
7 CUI Zhi-qiang1,ZHANG Yu-feng2,3,YU Bin1,LUO Yong-ming3(1.College of Sciences,Nanjing University of Technology,Nanjing 210009,China;2.College of Urban Construction andSafety & Environmental Engineering,Nanjing University of Technology,Nanjing 210009,China;3.Institute of Soil Science,Chinese Academy of Science,Nanjing 210008,China);Adsorption-desorption behavior of zinc in four kinds of Yangtze River delta soil[J];Journal of Nanjing University of Technology(Natural Science Edition);2007-02
8 WANG Xiao-li1,2,LI Yu3,WANG Yi-zhe2,CAI Yu2,WANG Ting3,DU Xian-yuan3,LIU Jian-lin3(1.College of Plant Science,Jilin University,Changchun 130062,China;2.College of Environment and Resources,Jilin University,Changchun 130012,China;3.Energy and Environmental Research Centre,North China Electric Power University,Beijing 102206,China);Effect of Iron Oxides Spiked in the Sediments on the Sorption Ability of Cu and Zn[J];Journal of Jilin University(Science Edition);2009-05
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved