Utilization and Recycling of Agricultural Waste with the Help of Biological Objects

Currently, the poultry industry is showing an intensive development trend, which has led to a high concentration of poultry manure. Due to imperfect disposal methods and the lack of processing technology, handling poultry manure is difficult. If measures are not taken to dispose of feces effectively and promptly, large amounts of feces can accumulate near poultry farms, causing potential harm to the environment and human health. To study the effects of earthworm rearing using different bird droppings as base material on the survival, growth, and development of earthworms, this paper uses bird droppings with different fermentation periods as experimental factors to conduct earthworm survival and chicken and duck droppings analysis. The study also examined goose manure during different periods of fermentation. An acute toxicity test was carried out, based on which the possibility of using cattle manure and crop waste as a breeding substrate was tested. Experimental results show that chicken manure (depending on the fermentation period) is suitable for earthworm colonization and can serve as a substrate when adding cow manure and other crop wastes. At the same time, 100% fermented goose and duck manure can also be used as a substrate for earthworm breeding. And through the vermicomposting process, an efficient and long-lasting organic fertilizer (bio humus) is obtained.