Abstract:

In view of the agricultural wastes’ types and quantity in Hunan Province, five utilization modes were designed according to different agricultural waste resources and the characteristics of organic fertilizer products, including (1) chicken manure + crop residue organic fertilizer applied to fruits, vegetables and tea fields; (2) cow dung + tobacco waste organic fertilizer applied to food crops and economic crops; (3) mushroom residue organic fertilizer; (4) vegetable waste + cake organic fertilizer applied to vegetables; (5) chicken manure + returned material organic fertilizer applied to economic crops. The results show that there are obvious advantages by using agricultural wastes above described, such as reducing the cost of waste consumption and enterprise production, avoiding secondary pollution, and obtaining more organic fertilizer resources. These technical models could be copied and popularized, which provide management references on different types of wastes for different regions and enterprises, and solve the technical problem of in-situ treatment of agricultural pollutants. The models could have positive significance for environmental protection and sustainable development of agriculture.

Key words: agricultural waste, in-situ, fertilizer utilization, organic fertilizer, technical model, application