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Nutrient Limiting Factors in Acidic Vegetable Soils

机译：酸性蔬菜土壤中的养分限制因子

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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.
机译：通过采用国际农业服务公司（ASI）开发的系统方法，对中国重庆郊区菜地酸性土壤中的营养限制因子进行了评估，包括土壤测试，养分吸收研究以及盆栽和田间试验，以验证土壤测试的结果，并使用传统的土壤测试（CST）进行比较。 ASI方法发现中等酸性土壤（W01）缺乏氮和磷。强酸性土壤（W04）缺乏N，K和S;弱酸性土壤（W09）缺乏N，K，S，Cu，Mn和Zn。 CST方法显示W01具有P，B和Cu缺陷; W04具有N，P和S缺陷; W09具有N，P，S，B，Cu和Zn缺乏。两种方法之间存在差异。在所选择的两种指示植物中，高粱对三种代表性酸性土壤的响应与甜椒的响应与ASI结果的关系更为密切。

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