新罗区黄底灰泥田养分现状与施肥对策

Nutrient status and fertilization countermeasures of lime marl field in Xinluo district

结合2009年新罗区承担农业部测土配方施肥项目,采集473个黄底灰泥田土样进行化验分析,并与1980年第2次全国土壤普查资料对比,结果表明:新罗区黄底灰泥田的有机质、碱解氮、有效磷、速效钾含量分别提高2.17%、52.85%、46.03%、151.2%。分析了黄底灰泥田主要养分变化原因,提出新罗区黄底灰泥田今后因地制宜、因土施肥的建议。

Combining with the project of soil testing and fertilizer recommendation assumed by Xinluo district at 2009,473 soil samples of lime marl field in Xinluo district were collected and analyzed.Compared to the results of 2nd general soil survey in statewide in 1980,the nutrient contents of organic matter and available nitrogen,phosphorus,potassium increased by 2.17%,52.85%,46.03% and 151.2%,respectively.This paper analyzed the changing cause of main nutrients in lime marl field and put forward a proposal of available fertilization in various soils of lime marl field in Xinluo district.