山西主要耕作土壤肥力现状及变化规律.pdfVIP

山西农业科学2010 ，38 （1）：73～77 Journal of Shanxi Agricultural Sciences doi:10.3969/j.issn.1002-2481.2010.01.18 山西主要耕作土壤肥力现状及变化规律 刘蝴蝶，李晓萍，赵国平，尹林红 （运城市农业局，山西运城044000） 摘 要： 对山西省62 个主要耕作土壤种类、耕层土壤肥力现状进行了调查分析，并与第二次土壤普查情况 进行比较，结果表明，依据山西省耕地土壤养分分级标准评价，有效磷属2 级水平，有机质、有效钾、阳离子 代换量属3 级水平，全氮属4 级水平；与第二次土壤普查情况相比，除有效钾呈下降状态外，有机质、全氮、 有效磷、阳离子代换量均呈上升状态。说明山西省耕作土壤肥力与土壤普查时相比有大幅度的提高，但是存 在养分间发展不平衡现象。为此，提出增施有机肥、大力实施测土配方施肥及秸秆还田技术等相应的培肥对 策，以达到土壤养分平衡发展，保证农作物持续优质、高产、稳产。 关键词： 耕作土壤；土壤肥力；变化规律；培肥建议 中图分类号： 文献标识码： 文章编号： S158 A 1002- 2481（2010）01- 0073- 05 Present Situation and Its Changing Law of Soil Fertility in Cultivated Land in Shanxi LIU Hu- die ，LI Xiao- ping，ZHAO Guo- ping，YIN Lin- hong Agriculture Bureau in Yuncheng ，Yuncheng 044000 ，China （ ） Abstract ：For 62 wajor soil patterns of cultivated land in Shanxi, tilth top soil fertility was investigated and compared with the conditions in the 2nd Soil Census. The results showed that: based on nutrition grading standard in Shanxi, the available P standed in grade 2, organic matter, available K, positive ion exchange in grade 3 and whole N grade 4; compared with the 2nd Soil Census the organic matter, whole N, available P, positive ion exchange all showed a raising situation, except available P. The situation sug- gested that soil fertility of cultivated land in Shanxi had improved remarkably since the last soil census, though there existed un- blance between nutrients. Thus, fertilization recommendation to increase organic fertilizer, to populize soil- test- formulation- fertil- ization and fodder ruturning was made for aim of a balanced development of soil nutrition and