Nutrient Limiting Factors in Acidic Vegetable Soils

查看全文 作　　者：YE Xue-[1]Jian;Wang Zheng-[1,2]Yin;Tu Shi-[2]Hua;[3]G.SULEWSKI

机构地区：[1]College of Resources and Environmental Science, Southwest University, Chongqing 400716 (China);[2]Institute of Soil and Fertilizer, Sichuan Academy of Agricultural Science, Chengdu 610066 (China);[3]Potash & Phosphate Institute of Canada, Saskatoon, STK 1J5 (Canada)

出　　处：《Pedosphere》索引2006年第16卷第5期,共10页

基　　金：Project supported by the Potash & Phosphate Institute/Potash & Phosphate Institute of Canada (PPI/PPIC) (No. Chongqing-02). 摘　　要：Nutrient limiting factors in acidic soils from vegetable fields of the Chongqing suburbs of China were assessed by employing the systematic approach developed by Agro Services International (ASI) including soil testing, nutrient adsorption study, and pot and field experiments to verify the results of soil testing, with a conventional soil test (CST) used for comparison. The ASI method found the moderately acidic soil (W01) to be N and P deficient; the strongly acidic soil (W04) to be N, K and S deficient; and the slightly acidic soil (W09) to be N, K, S, Cu, Mn, and Zn deficient. The CST method showed that W01 had P, B and Cu deficiencies; W04 had N, P and S deficiencies; and W09 had N, P, S, B, Cu, and Zn deficiencies. There were differences between the two methods. Among the two indicator plants selected, the response of sorghum on the three representative acidic soils was more closely related to the ASI results than that of sweet pepper. 关键词：酸性土壤营养限制高粱重庆种植技术

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Nutrient Limiting Factors in Acidic Vegetable Soils

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