施肥对土壤养分含量、微生物数量和酶活性的影响

Effect of Fertilizer to Content of Soil Nutrient,Amount of Soil Microorganism and Soil Enzyme Activities

本文研究了施肥对烟田土壤养分含量和微生物数量及酶活性的动态变化的影响。试验结果表明:施肥对土壤养分含量有显著影响,施肥能显著增加土壤养分的含量,尤其以施用烟草专用肥+菌液最为显著。土壤微生物数量和酶活性对不同施肥处理响应是不同的,施肥能够显著增加土壤中微生物的数量、增强土壤酶的活性。将土壤养分与土壤微生物数量、酶活性进行回归分析可以发现,其间存在一定的相关性。与土壤养分相比,土壤微生物数量、酶活性变化更加敏感,其作为土壤肥力的评价指标更为合理。

This paper studies the dynamic change laws of the content of the soil nutrient and the amount of the soil microorganism and soil enzyme activities under the different fertilizer treatment conditions.The result of the experiment shows： different fertilizer treatments have significant influence towards the soil available nutrients.The fertilizer can significantly increase the level of soil available nutrients;especially by using tobacco specialty fertilizer together with EM liquid.The soil microorganism quantities and the soil enzyme activities have various different under the different fertilizer treatments.Apply fertilizer can remarkably raise the amount of the microorganism in the soil and enhance the enzyme activity of the soil.By regressing analysis of the soil nutrient and the soil microbiology attributes,we found that they are correlated to some degree.The amounts of the soil microorganism and soil enzyme activities are more sensible to the change of the environment,comparing with soil nutrient.As a result,it can be used as an important basis to reflect the change of the soil quality.