晋中市黄土质褐土性土养分动态变化研究

Study on the Change of Nutrient Dynamics in Cinnamon Soil in Jinzhong

通过对晋中市黄土质褐土性土耕多姜立黄土和耕二合立黄土2个土种进行长期定位,研究其养分变化规律。结果表明,不同土种土壤养分性质不同,耕多姜立黄土土种的土壤有机质、全氮含量略高于耕二合立黄土土种;有效磷含量略低于耕二合立黄土土种;速效钾明显高于耕二合立黄土土种。人为施肥活动对土壤养分有明显的影响,在农业生产实践中,应根据不同土种性质进行配方施肥,强化农田基本建设,从而有效培肥地力,起到藏粮于土的作用。

By long-term study on nutrient variation of the much-tillage ginger loess and composite made of loess in Jinzhong loess mass of cinnamon soil, it was concluded that soil properties of different soil was different： in the content of soil organic matter and total nitrogen in much-tillage ginger loess soil is slightly higher than the comPosite made of loess; the available phosphorus content was slightly lower than the composite made of loess, and the available rapid potassium was significantly higher than that of the composite made of loess. Artificial fertilization had a significant effect on soil nutrient. In agricultural practice, it＇s better to formula fertilization according to different soil properties and to strengthen the basic construction of farmland for soil fertility improvement.