沼液施肥对土壤肥力特性的影响

The Effects of Biogas Slurry on Soil Fertility Characteristics

[目的]研究沼液施肥对土壤肥力特性的影响。[方法]利用沼液进行暗灌施肥,以等量清水作为对照,探讨其对土壤肥力的影响。[结果]土壤速效钾含量增加56.73 mg/kg,有机质含量增加5.29 mg/kg,铵态氮含量增加5.51 mg/kg,速效磷含量增加3.89 mg/kg,而土壤pH基本保持不变。[结论]沼液施肥可以有效提高土壤肥力。

[Objective] To study the effect of biogas slurry on soil fertility characteristics.[Method]The effect of biogas slurry on soil fertility characteristics by subsurface irrigation was studied,with amount of water as control. [Result]The content of soil available potassium increased by56.73 mg/kg,the content of organic matter increased by 5.29 mg/kg,the content of ammonium nitrogen increased by 5.51 mg/kg,and the content of available phosphorus increased by 3.89 mg/kg.But the soil pH value was modestly improved. [Conclusion]Biogas slurry can improve soil fertility.