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用香蕉茎杆作为基本堆肥原料,研究不同猪粪添加量对混合堆肥体系温度,pH、EC值,全碳、全氮含量,C/N,NH+4-N、P、K、Ca、Mg含量和种子发芽指数的影响。结果表明:所有处理pH、EC值,全磷和全钾含量呈现上升趋势,全碳含量和C/N呈现下降趋势,全氮含量呈现先下降后上升的趋势,NH+4-N含量和温度均呈现先上升后下降的趋势;T4(香蕉茎杆37.5 kg,猪粪12.5 kg)和T5(香蕉茎杆32.5 kg,猪粪17.5 kg)处理在堆肥过程中的最高温度分别是58.00和59.00℃,分别持续在50℃以上的时间为6和12 d;堆肥结束时,T1(香蕉茎杆50 kg)、T2(香蕉茎杆47.5 kg,猪类2.5 kg)、T3(香蕉茎杆42.5 kg,猪粪7.5 kg)、T4和T5处理的C/N分别为27.85、21.54、18.78、15.95和14.72,分别下降了5.43%、16.54%、21.46%、25.12%和28.84%;T1~T5处理发芽指数(GI值)分别为:67.04%、86.86%、111.99%、106.26%和94.12%;T5处理的肥料养分和pH值分别为5.59%和8.49。结论:猪粪添加量为12.5和17.5 kg时,显著缩短堆肥体系进入高温分解所需的时间,延长高温持续时间,增加肥堆全磷和全钾含量,加快物料腐熟进程。
Using banana stalks as basic composting materials, the effects of different pig manure dosages on temperature, pH, EC value, total carbon, total nitrogen, C / N, NH 4 + -N, P, K, Ca, Mg Content and seed germination index. The results showed that the pH value, EC value, total phosphorus and total potassium content of all treatments showed an upward trend, the total carbon content and C / N showed a downward trend, the total nitrogen content decreased first and then increased, NH + 4-N content and temperature All showed a trend of first increasing and then decreasing; the maximum temperature during composting of T4 (banana stalks 37.5 kg, pig manure 12.5 kg) and T5 (banana stalks 32.5 kg, pig manure 17.5 kg) was 58.00 and 59.00 ° C (T1), banana stalks (50 kg), T2 (banana stalks 47.5 kg, pigs 2.5 kg), T3 (banana stalks 42.5 kg, Pig manure 7.5 kg), the C / N of T4 and T5 treatments were 27.85, 21.54, 18.78, 15.95 and 14.72 respectively, decreased by 5.43%, 16.54%, 21.46%, 25.12% and 28.84% (GI value) were 67.04%, 86.86%, 111.99%, 106.26% and 94.12%, respectively. Nutrients and pH values of fertilizers were 5.59% and 8.49, respectively. Conclusion: When the pig manure dosages are 12.5 and 17.5 kg, the time required for the composting system to enter pyrolysis is significantly shortened, the duration of high temperature is prolonged, the content of total phosphorus and total potassium in the heap is increased, and the composting process is accelerated.