Planting vegetables and buying some cow dung will not ferment. Can it be used in the field after drying?

Dry cow dung contains crude protein 10%-20%, crude fat 1%-3%, nitrogen-free extract 20%-30% and crude fiber 15%-30%, so it has high nutritional content. Biological research in Yuanhai, Hebei Province found that dried cow dung can become high-quality organic fertilizer products after fermentation. It can loosen soil, improve soil hardening, chelate trace elements in soil and improve soil fertility. (See Resources for Producing Organic Fertilizer)

Using cow dung as raw material to produce organic fertilizer has low cost, stable quality and large market sales space. The traditional composting method is not only slow in fermentation, but also unable to completely decompose cow dung. After being applied to farmland, "secondary fermentation" is easy to occur, resulting in the phenomenon of burning roots and seedlings. Therefore, it is necessary to add Gymboree microbial fertilizer starter in cow dung fermentation, and the fermentation speed is fast. Generally, the process of complete deodorization, fermentation and decomposition, insecticidal sterilization of cow dung can be completed within 3 ~ 7 days.

Extended data Some auxiliary materials such as microbial preparations or enzyme preparations were added to cow dung, and then fermented at a suitable temperature. The obtained products were used to feed animals such as pigs, chickens and fish. For example, as long as there is enough water and soluble carbohydrates, cow dung can be silaged with other livestock manure, crop straw, pasture or other roughage.

When silaging, the ratio of manure to forage or other feeds is preferably 1: 1. This method can not only improve palatability and absorption rate, and prevent excessive loss of protein, but also convert part of non-protein nitrogen into protein, killing almost all harmful microorganisms.

Baidu encyclopedia-cow dung