Horse manure composts may provide nutrients to crops as well as enrichment of good microorganisms for phytoprotection. Previous studies have shown their effectiveness against diseases but there are problems to overcome their composting procedures. The purpose of this experiment is to treat the horse manure starting from the stable to produce compost for crop growth. The results indicate that the manure can be enriched in its nutrient components after appropriate crushing. Biophase analysis of the microorganisms on manure composts during their fermentation showed that the main genus is Bacillus subtilus species which is characterized by higher temperature resistance and so has higher concentration after fermentation. Field experiment on cabbage growth shows that horse compost may improve soil property, nutrient components and cabbage quality more than the compost sold in the market.
Key words: Horse manure, plant nutrition, agricultural management, resource, product innovation.
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