餐厨垃圾和绿化废弃物混合堆肥的试用

Kitchen waste and greening waste composting trial

以餐厨垃圾和绿化废弃物堆肥作为种植基质,研究了其不同堆肥比例对黑麦草(Lolium perenne L.)生长的影响。结果表明,将不同基质组分别施用后,黑麦草各项生长指标(植株高度、盖度、地上和地下生物量(干重))均良好,其中2#基质(80%土壤+20%堆肥)施用效果优于1#(90%土壤+10%堆肥)和3#(70%土壤+30%堆肥)基质。对比不同堆肥对黑麦草生长的影响发现,(80%+20%)堆肥6处理的黑麦草地上和地下生物量最大,分别约为40 g和28 g,第三茬草地上生物量(干重)与对照组相比增幅为164.3%,盖度达到了98%。本研究确定了堆肥和土壤的最佳配比以及最佳堆肥类型,不但可以解决其资源化再利用的问题,而且植物生长良好,表明该技术在城市绿化中具有一定的应用前景。

In the present study,the compositing substrates of kitchen waste and greening waste were used as the growth matrix of ryegrass( Lolium perenne L.). The influence of compost ratio on the growth and development of ryegrass was investigated. All the examined indexes of ryegrass( plant height,coverage,biomass of aboveground and underground( dry weight)) were better than the control group,with the order of 2#matrix( 80% soil +20% compost) > 1#matrix( 90% soil + 10% compost) ≈ 3#matrix( 70% soil + 30% compost). The maximum aboveground biomass( ~ 40 g) and underground biomass( ~ 28 g) of ryegrass were observed after incubated in the matrix of 80% soil + 20% compost product 6,compared with other compost products. The biomass( dry weight) of ryegrass in the 3rd crop was 1.64 times higher than the control group,and the coverage reached98%. The best proportion of compost and soil,as well as the optimal composting type were determined,which realized the resourcilization of waste and indicated potentiality in urban greening.