Liming effects on soil pH and crop yield depend on lime material type, application method and rate, and crop species: a global meta-analysis

文献类型： 外文期刊

第一作者： Li, Yuan

作者： Li, Yuan;Zhang, Qingping;Li, Yuan;Li, Yuan;Cui, Song;Chang, Scott X.

作者机构：

关键词： Liming; Liming material; Soil acidity; Soil nutrients; Yield

期刊名称：JOURNAL OF SOILS AND SEDIMENTS （ 影响因子：3.308； 五年影响因子：3.586 ）

ISSN： 1439-0108

年卷期： 2019 年 19 卷 3 期

页码：

收录情况： SCI

摘要： PurposeThe aim of this meta-analysis was to investigate the interactive effects of environmental and managerial factors on soil pH and crop yield related to liming across different cropping systems on a global scale.Materials and methodsThis study examined the effects of liming rate, lime application method, and liming material type on various soil chemical properties and crop yield based on data collected from 175 published studies worldwide since 1980.Results and discussionThe most important variables that drive changes in soil pH and crop yield were liming rate and crop species, respectively. Soil conditions, such as initial soil organic matter and soil pH, were more important for increasing soil pH in field-based experiments, while lime material type and application method were more important for improving crop yield. To effectively neutralize soil acidity, the optimum liming duration, rate, and material type were<3years, 3-6Mgha(-1), and Ca (OH)(2), respectively. Averaged across different crop species, the application of CaO, CaCO3, Ca (OH)(2), and CaMg (CO3)(2) increased yield by 13.2, 34.3, 29.2, and 66.5%, respectively.ConclusionsThis meta-analysis will help design liming management strategies to ameliorate soil acidity and thus improve crop yield in agroecosystems.

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