不同复合微生物菌剂对牛粪堆肥效果的影响

为了探讨不同复合微生物菌剂对牛粪堆肥的影响,该试验以70％牛粪+30％玉米秸秆为堆肥材料(C/N=(25～35)/1),设计4个堆肥处理,前3个处理组分别加入0.1％的复合微生物菌剂1(枯草芽孢杆菌+细黄链霉菌(1∶1))、复合微生物菌剂2(里氏木霉+细黄链霉菌(1∶1))和复合微生物菌剂3(枯草芽孢杆菌+里氏木霉+细...

Effect of Different Compound Microbial Agents on Composting of Cow Manure

In order to explore the effects of different compound microbial inoculants on cow manure composting,this experiment used 70%cow manure+30%corn stover as composting material(C/N=(25~35)/1),and four composting treatments were designed.The three treatment groups were added with 0.1%compound microbial agent 1(Bacillus subtilis+Streptomyces tenuis(1:1))and compound microbial agent 2(T.reesei+Streptomyces tenuis(1:1))and compound microbial agent 3(Bacillus subtilis+Trichoderma reesei+Streptomyces chrysogenum(1:1:1)),treatment group 4 did not add the agent,each treatment was repeated 3 times.After 21 days of composting treatment,the changes of compost index such as temperature,pH,moisture content,C/N,seed germination index,organic matter,total nitrogen,total phosphorus,total potassium,total nutrients under different composting conditions were studied.The results showed that the four treatment groups maintained high temperature for 9,10,9,and 8 days,respectively,indicating that the treatment with the addition of compound microbial inoculants can prolong the high temperature period of compost.Among them,treatment group 2 has the longest high temperature period;the pH of the treatment is not significant;the temperature of the treatment group with the addition of the composite microbial agent is high,and the water evaporation is fast,which effectively promotes the decomposition of organic matter and the generation of humus in the heap;the seed germination index of the four treatment groups has reached the state of rot,of which the treatment group 2 is superior to other treatment groups;the total nitrogen,total phosphorus,total potassium,and total nutrient content of each treatment group have increased,and treatment group 2 is higher than other treatment groups.Studies have shown that the effect of adding compound microbial inoculum 2 compost is the best.