Pedosphere 16(5): 624--633, 2006
ISSN 1002-0160/CN 32-1315/P
©2006 Soil Science Society of China
Published by Elsevier B.V. and Science Press
| Nutrient limiting factors in acidic vegetable soils |
YE Xue-Jian1 , Wang Zheng-Yin1, Tu Shi-Hua2 and G. SULEWSKI3 |
1 College of Resources and Environmental Science, Southwest University, Chongqing 400716 (China). E-mail: yexuejian@sohu.com;
2 Institute of Soil and Fertilizer, Sichuan Academy of Agricultural Science, Chengdu 610066 (China);
3 Potash & Phosphate Institute of Canada, Saskatoon, S7K 1J5 (Canada) |
| ABSTRACT |
| 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. |
| Key Words: acidic vegetable soil, nutrient limiting factor, sorghum, sweet pepper, systematic approach |
| Citation: Ye, X. J., Wang, Z. Y., Tu, S. H. and Sulewski, G. 2006. Nutrient limiting factors in acidic vegetable soils. Pedosphere. 16(5): 624-633. |
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