The simplest method of ripening cow dung

Cow dung is a commonly used farm manure, and many cattle farmers will decompose it and use it as fertilizer. The following is to introduce the simplest method of cow dung rotting.

I. the method of rotting cow dung

1, dry cow dung: due to the lack of water in dry cow dung can not be fermented, must add enough water, add enough water, pile into a large pile, and then ferment, covered with sealed plastic sheeting, so that fermentation will be faster.

2. Fresh cow dung: if it is fresh cow dung, a variety of auxiliary materials need to be added during fermentation to absorb moisture in fresh cow dung, too much water can easily lead to impermeability, microorganisms can not produce fermentation, and a variety of auxiliary materials are selected. the purpose is to absorb part of the water in fresh cow dung. General choice of auxiliary materials: sawdust, straw, ash carbon and so on.

II. Points for attention

1. Cow dung must be fermented and mature before it can be used in crops, otherwise some pathogenic microorganism in cow dung will burn out the roots of crops. Drying and drying are OK, but after drying, part of the nutrition of cow dung will be lost. Cow dung can be dried and deodorized by the dryer. It can also reduce the labor intensity of labor and so on.

2. The moisture content after drying is controlled at about 25% in winter and about 15% in summer, in case the follow-up process can not be completed, and some dryers can not control the water content of cow dung, which leads to the continued fermentation of cow dung granulated organic fertilizer.

3. In summer and autumn, the film should be ventilated once in the morning and evening (1-2 hours). When the weather is clear, the film can be uncovered in the evening of the first day and covered the next morning. After composting for 4 days, the composting temperature could rise to 60 ~ 70 ℃. After 10 days of composting, the pile can be turned once, and after 20 days, it can be fully ripe, the fertilizer content can be increased, and pests can be eliminated.

4. For the selection of fermentative bacteria, the ones with high bacterial activity must be selected, preferably those with primary bacteria. This fermentation is stable and not easy to fail.

In addition to cow dung, human, livestock, poultry and other droppings can be cooked and then used.