农作物秸秆与畜禽粪便组合的好氧堆肥理化性状研究

Comparative study on aerobic composting of thecombination among crop stalk andlivestock manure

摘要:

为对比不同农作物秸秆用作高温好氧堆肥原料的适用性,并探究堆肥过程中物理、化学性质的变化,以玉米秸秆、水稻壳和鸡粪、牛粪为原材料,两两组合进行高温好氧堆肥试验,对堆肥过程中的堆体和堆肥完成后的产物的物理化学性质进行测定。结果表明:鸡粪+秸秆处理的温度的峰值较高,持续高温的时间更长,含有鸡粪的处理最终堆肥产物pH 降至7.54和7.73,低于含有牛粪处理的8.46和8.09,鸡粪+秸秆处理在腐熟程度上高于牛粪和稻壳;堆肥产品有机质含量与总养分含量评价中“鸡粪+秸秆”的处理各项指标均达到A 等级。采用秸秆与鸡粪或牛粪组合的堆肥腐熟度高,产物的营养性质和应用效果好,适合在农业生产中进行推广和应用。

Abstract:

Composting technology converts agricultural waste into organic matter resources,which in turnprovide nutrients for plant growth.In this study,corn stalk,rice husk,chicken manure and cow dung were usedas raw material for high temperature aerobic composting in pairs.The physicochemical properties of the heapand compost products during the composting process were determined.The results showed that the peak temperatureof chicken manure with stalk treatment was higher and the high temperature lasts longer,the pH of thefinal composting products of the two treatments containing chicken manure was reduced to 7.54 and 7.73,lowerthan that of the treatments containing cow dung(8.46 and 8.09),indicating that the degree of maturity of chickenmanure with stalk was higher than that of cow dung and rice husk;the evaluation of organic matter contentand total nutrient content of composting products showed that all indexes of chicken manure with stalk treatmentreached grade A.Therefore,the compost with stalk and chicken manure or cow dung has high degree ofmaturity,good nutritional properties and application effect,which is suitable for promotion and application inagricultural production.