辽宁省辽中县无公害生产项目区土壤养分状况评价与施肥建议

为充分了解项目区的土壤养分肥力状况,结合作物生物学特性,做到因土施肥,对辽宁省沈阳市辽中县4400.00hm2的无公害生产基地土壤进行采样、分析土壤中有效氮、速效磷、速效钾、有机质含量。分析结果显示:有效氮、速效磷含量大部分偏高,有机质含量大部分处于中等,速效钾含量中等偏低;土壤养分变化较大,含量分布不平衡,尤其是速效磷、速效钾和有机质表现更为明显。在统计数据的基础上,结合土壤耕作措施进行肥力评价,提出施肥建议,指导无公害项目区的农业生产。

Evaluation of Soil Nutrient Status and Fertilizer Recommendations in Pollution-free Production of the Project Area in Liaozhong County

In order to fully understand the project area of the fertility status of soil nutrients, combined with biological characteristics of crops for soil fertilization, the pollution-free production about 4 400.00 hm2 based on soil sampling to analyze soil available nitrogen, available phosphorus, potassium, organic matter content in Liaozhong county, Liaoning Province. Analysis showed that available nitrogen, available phosphorus content of most of the high content of organic matter was mostly medium available potassium medium low; soil nutrient changes in large, content distribution was uneven, especially available phosphorus, potassium and organic matter in the performance of more apparent. In the statistical datum based on the combination of soil tillage measures of fertility evaluation, Made fertilizer recommendations to guide the project area pollution-free agricultural production.