不同原料配比对尾菜气流膜堆肥效率和品质的影响

    Effects of Raw Material Ratio on the Efficiency and Quality of Airstream Film Composting of Vegetable Waste

    • 摘要: 为探究在工厂化气流膜堆肥方式下不同原料配比对尾菜好氧堆肥效率及品质的影响, 将番茄、辣椒、茄子、玉米秆、金针菇渣和松木屑分别以干重比20∶60∶10∶0∶130∶0(处理A)、30∶30∶10∶40∶80∶40(处理B)和20∶20∶20∶60∶60∶80(处理C)组合, 分析不同配料处理堆肥过程中温度、碳氮比、发芽指数、病原菌数量的变化, 探讨不同原料配比处理腐熟有机肥料对番茄产量的影响。结果表明, 堆肥过程中不同原料配比处理间发酵效果具有一定差异; 相比处理B和C, 处理A升温快且温度高, 最高温可达61℃; 各处理的发芽指数随堆肥进行均不断提高, 处理A、B和C发芽指数分别为88.69%、82.92%和80.21%;碳氮比随堆肥进行均呈下降趋势, 至堆肥结束处理A、B和C分别下降27.12%、23.17%和22.06%;不同处理病原菌随堆肥进度的变化趋势总体一致, 堆肥结束时处理A的病原菌含量最少; 番茄田间试验结果表明, 处理A较施用化肥的增产率为20.06%。不同原料配比在气流膜发酵工艺中均能实现尾菜堆肥腐熟, 尾菜配伍金针菇渣(处理A)提高堆肥效率和品质的效果最佳。

       

      Abstract: In this study, the effect of raw material ratio on the efficiency and quality of aerobic composting of vegetable wastes were investigated by using the industrial airstream film. Three ratios (A=20∶60∶10∶0∶130∶0, B=30∶30∶10∶40∶80∶40, and C=20∶20∶20∶60∶60∶80) of raw materials from biomass of tomato, chili, eggplant, corn stalk, residues of needle mushroom substrates and pine sawdust were set up. The changes of physicochemical parameters including temperature, C/N, germination index, number of plant pathogenic microbes and plant growth promotion efficiency of the final products were determined. The results show that A which peaked at 61℃ had significantly faster and higher temperature records during the composting process. The germination index of seeds treated with A, B and C were 88.69%, 82.92% and 80.21%, respectively. During the composting process, the C/N in each treatment significantly decreased by 27.12%, 23.17% and 22.06% for A, B and C, respectively. The number of plant pathogenic microbes also dropped along with the composting maturation especially for that of A. The results from the field experiment show that use of A could significantly increase the yield of tomato by 20.06% compared to that of chemical fertilization. In conclusion, the tested three different raw material ratio of vegetable wastes could all be used for airstream film fermentation, among which composting with high ratio of needle mushroom substrates residues (namely A) showed the highest composting efficiency and quality.

       

    /

    返回文章
    返回