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Abstract
In recent years, the utilization of manure resources for livestock and poultry farming has attracted a widespread attention, and manure resources utilization models suitable for different regional characteristics have formed gradually. Among them, the production of organic fertilizer from animal manure is a vital utilization method. However, there are still some problems such as high production costs, difficult sales, and the unwillingness of farmers to use organic fertilizers which have affected the breeding cycle and the sustainability of manure treatment in livestock and poultry breeding. This article selected 371 organic fertilizer plants, related farms and farmers in China, focusing on the main links of the entire process of livestock manure-organic fertilizer-farm application, and studied the mode of animal manure collection by organic fertilizer plants. The costs of organic fertilizer production and farmland application were discussed. Moreover, suggestions were made for the promotion and implementation of large-scale organic fertilizers to make good utilization of manure resources in livestock and poultry farming. Keywords: livestock manure, organic fertilizer, compost, production cost, application cost DOI: 10.25165/j.ijabe.20201302. Citation: Dong S S, Sui B, Shen Y J, Meng H B, Zhao L X, Ding J T, et al. Investigation and analysis of the linkage mechanism and whole process cost of livestock manure organic fertilizer. Int J Agric & Biol Eng, 2020; 13(2): 223–227.
Highlights
As an essential means of production, fertilizer has an irreplaceable role in promoting the development of the agricultural output, there are some problems such as excessive supplementation of chemical fertilizers, blind replacement, undue emphasis on the substitution of synthetic fertilizers for crops, and the impact on soil quality
2020 Dong S S, et al Investigation and analysis of linkage mechanism and whole process cost of livestock manure organic fertilizer Vol 13 No.2 225 survey. This method reduces the procurement of manure, the cost of organic fertilizer production, and avoids pollution caused by manure transportation
The results showed that the application cost per unit area of organic fertilizer was significantly higher than that of chemical fertilizer, among the application cost, which was consistent with results obtained by Liu et al.[21]
Summary
As an essential means of production, fertilizer has an irreplaceable role in promoting the development of the agricultural output, there are some problems such as excessive supplementation of chemical fertilizers, blind replacement, undue emphasis on the substitution of synthetic fertilizers for crops, and the impact on soil quality. Contradictions such as the reduction of excess fertilizer, food safety, depletion of resources, and environmental pollution have become increasingly prominent. The actual utilization is less than 40%[6,7]
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