How much is a bag of organic fertilizer on the market? What are the methods of composting?

Organic fertilizer is mainly derived from plants and / or animals and is applied to soil to provide plant nutrition as its main function of carbon-containing materials. How much is a bag of organic fertilizer on the market? What are the methods of composting?

How much is a bag of organic fertilizer on the market?

With different raw materials and different costs, the price of natural organic fertilizer is also different. There is also the problem of technology, spray granulation process is generally more large enterprises can do, if the powder is lower than the particle in this aspect of the cost. In addition, the organic matter in bio-organic fertilizer must also be able to meet the survival of beneficial bacteria. The same is bacterial fertilizer, some prices are high, some prices are low, high can reach more than 100 yuan a bag, low 50 or 60 is also available.

What are the methods of composting organic manure?

First, crop straw, autumn fallen leaves, weeds, planted green manure, wild green manure and other mature bacteria composting technology.

(1) Technical principles

Its main components are cellulose, lignin and other stable macromolecular substances, which decompose slowly in the natural state. In the process of composting, water, nutrients and aeration are artificially adjusted to create an environment suitable for microbial reproduction, and the addition of mature bacteria increases the population of rapidly decomposing microorganisms. the temperature in the pile increases with the reproduction of microorganisms, and the higher temperature can accelerate the decomposition rate of crop straw, autumn fallen leaves, weeds, planted green manure, wild green manure and so on. As a result, it decomposes and ripens into fertilizer in a relatively short time.

(2) Operation steps

1) location selection. Choose fields close to water sources and convenient for straw accumulation, ditch roadsides and other places that do not hinder field farming; project areas with abundant labor can also dig pits about 1 meter deep, and the size and shape of the pits can be flexibly controlled according to the site and materials. Tamp the bottom, lay a layer of about 30 cm thick, unchopped crop straw, autumn fallen leaves, weeds, planted green manure, etc., add water to adjust the water content.

2) raw material treatment. Cut the raw material into 10-15 cm segments.

3) preparation of ripening agent. The amount of mature bacteria for composting raw materials is 2 kg for every 1000 kg of compost raw materials, 5 kg of urea or 20 kg of ammonium bicarbonate is evenly mixed with wet fine soil, and human and animal manure (100,200kg) can also be used instead of nitrogen fertilizer under certain conditions.

4) the composting of compost raw materials. Pile the cut raw materials into 20 cm thick, spread mature bacteria evenly, then pile the second layer, and so on, spread layer by layer, a total of about 10 layers. Cover the fertilizer pile with digging soil or seal it with black plastic film.

5) Post-heap management. During the composting period, the changes of moisture and temperature in the upper, middle and lower parts of the reactor should be checked frequently. Turn the pile once at the right time, turn the outer layer to the middle, turn the middle to the outside, and re-accumulate an appropriate amount of fecal and urine water as needed to promote maturity. After 20-30 days, the raw materials are nearly black, rotten and smelly, indicating that they are basically mature.

6) apply mature organic fertilizer. The rotten organic fertilizer was spread evenly on the surface by the way of basic application, and ploughed into the soil.

(3) points for attention

1) compost raw material moisture. The moisture content is controlled at about 60%, that is, the mixture is pinched by hand, and it is moderately squeezed out with wet hands and water. It is relatively dry in autumn and winter, so it is necessary to replenish water properly when the raw materials are too dry.

2) the use of mature bacteria. Materials such as mature bacteria and urea should be evenly mixed with composting materials, that is, they should be mixed and used immediately.

3) the temperature of composting. When stacking, the raw materials should be tapped gently to prevent the gap from being too large. After stacking, it is best to use a mud-sealed pile mixed with composting materials. Ventilation measures should be taken when the temperature in the reactor exceeds 65 ℃.

4) the sign of maturity. The heap temperature decreases, the material is loose, brown or dark brown, slightly ammonia smell, there are white hyphae in the heap.

Second, common composting techniques such as crop straw, autumn fallen leaves, weeds, planted green manure, wild green manure, etc.

Generally choose to accumulate in places where the terrain is high and flat, close to water sources and convenient for transportation. The pile is about 2 meters wide and 1.5-2 meters high, depending on the number of materials. before composting, tamp the ground, then lay 10-14 cm thick compost raw materials to absorb the infiltration liquid, and then spread 17-26 cm thick deposits, add the right amount of water, plus a layer of cattle and sheep feces, etc. Such a layer is piled up to 2 meters high, and the last layer is covered with a layer of fine soil or black plastic film. To reduce the loss of water evaporation and ammonia volatilization. The pile was turned over after 1 month, and matured in about 2 months in summer and from March to April in winter.

Composting is marked by a significant reduction in size, the composting material turns brown or dark brown, is soft and elastic when wet, and can squeeze out black juice; it is brittle, loose and easy to break when dry.

Other technical principles and matters needing attention are the same.