【作者】 赵瑞芬；

【导师】 陈明昌； 王申贵；

【作者基本信息】 山西农业大学 ， 植物营养学， 2003， 硕士

【摘要】 本文研究了ASI法测定P、K、Fe、Cu、Zn、Mn与我国常规化学分析方法的相关性。在此基础上，应用土壤养分状况系统研究法的化学分析、吸附反应、生物诊断和田间试验四个步骤，比较详细地研究了山西省褐土土壤养分丰缺状况。试验结果表明： 1．ASI法土壤有效P、K、Fe、Cu、Zn、Mn测定值与常规化学分析方法土壤有效P、K、Fe、Cu、Zn、Mn测定值之间相关性显著。 2．土壤养分状况系统研究法可以系统地、科学地、准确地对土壤养分状况进行研究为合理地施肥提供科学依据。值得在山西省大面积推广。 3．褐土上玉米生产的主要限制因子为P、N，其次为K、Zn，而Cu、B可能是潜在的限制因子。 4．在不同质地的褐土土壤上，施用相同的肥料，玉米产量差异较大。在本实验条件下，均以设定的最佳处理(OPT)产量最高，而且N、P、K的表观利用率也最高。本实验中推荐的大田配方施用量较高。更多还原

【Abstract】 The correlative was studied on the available value of P, K, Fe, Mn, Cu and Zn determined by the method of AST and conventional analyses. On the base, the chemical analysis, adsorption study, greenhouse experiment and field experiment, as four parts of the systematic approach, were employed to study the Cinnamon soil nutrient status in Shanxi. Result of experiment indicated that:1) Significant interactive effects of the soil available value of P, K, Fe,Cu and Zn determined by the method of ASI and of conventional analysis ,were obtained from the experiment.2) Cinnamon soil which was collected from Zuoquan and Heshun respectively were studied with a systematic approach technique on soil nutrient status. It indicates that the effect of use of this method is good .Use of this technique can systematically, scientifically and precisely reflect soil nutrient status and further indicate the limiting factor of trial, so it provides the powerful theory and method for balanced fertilization and it was worth widely spreading in Shanxi.3) First nutrients limiting factors of maize yield were P and N in Cinnamon soil, the second was K and Zn, Cu and B were probably latent contains.4) There were significant effects on the yield of maize on the soil of different texture when the same fertilizers were used under condition of this studying ,the highest yield was obtained in treatment OPT, and the utilization ratio of N, P, K were highest. the contents of N, P and K, recommended in the field experiment were relatively surplus .更多还原