垃圾堆肥对矿区复垦土壤化学性状的影响

目的]研究垃圾堆肥对矿区复垦土壤化学性状的影响。方法]试验设4个垃圾堆肥处理,在试验区内种植苜蓿,测定土壤全氮、全磷、全钾、碱解氮、速效磷、速效钾、有机质和pH值。结论]结果表明,与对照相比,75 t/hm2的处理,土壤养分显著增加,土壤有机质增加4.08 g/kg,碱解氮、速效磷和速效钾分别增加20.42、2.55和13.21 mg/kg,pH值降低1.14,经LSR检验不同处理间差异显著和极显著。结论]提高垃圾堆肥的质量,必须要发展有机无机复合肥。

Effects of Composted Refuse on the Soil Chemical Characters of Mine Reclamation

Objective] The aimed to study the effects of composted refuse on the soil chemical characters.Method]The four treatments of composted refuse were designed,and clovers were planted in tested plots to determine total-nitrogen, total-phosphor,total-kalium,alkali-hydrolysis N,available P,available K, organic matter and pH value of soil.Result]The results showed that compared with the treatment without fertilizers,treatment of 75 t/hm2 could reclaim soil chemical characters effectively.The soil organic matter increased 4.08 g/kg,alkali-hydrolysis N,available P and available K increased 20.42,2.55 and 13.21 mg/kg,the pH value reduced 1.14.Between different treatments,the difference reached significant and very significant level by LSR inspection.Conclusion] The development of organic and inorganic fertilizer is necessarily to enhance the quality of composted refuse.