Farm manure--Nutrient sorting of organic fertilizer raw materials

Farm manure--Nutrient sorting of organic fertilizer raw materials

●Pig manure:

Pig manure contains 15% organic matter, 0.5% nitrogen, 0.5-0.6% phosphorus, and 0.35-0.45% potassium. The texture of pig manure is finer and the composition is more complex, including protein, fat, organic acid, cellulose, hemicellulose and inorganic salts. Because it contains more nitrogen, the ratio of carbon to nitrogen is relatively small, about 14:1. Generally, it is easily decomposed by microorganisms and releases nutrients that can be absorbed and utilized by crops.

Pig manure contains the highest humus, the largest amount of cation replacement, and the strongest fertility retention, but it has more water content and less cellulolytic bacteria. Mixing a small amount of horse manure to inoculate cellulolytic bacteria can greatly increase fertilizer efficiency.

●Cow manure:

Cow dung contains 14.5% organic matter, 0.30-0.45% nitrogen, 0.15-0.25% phosphorus, and 0.10-0.15% potassium. The organic matter and nutrient content are lower among all kinds of livestock, the texture is fine and dense, the water content is more, the decomposition is slow, the calorific value is low, and it is a slow-acting fertilizer.

Due to the high water content in cow dung, the air permeability is poor, and the organic matter part is difficult to decompose. It is a cold fertilizer. Dry the fresh ones and add horse manure to mix and pile up to obtain loose and high-quality organic fertilizers.

●Horse manure:

Horse manure contains 21% organic matter, 0.4-0.5% nitrogen, 0.2-0.3% phosphorus, and 0.35-0.45% potassium. Horse manure contains more cellulose and hemicellulose, in addition, it also contains lignin, protein, fat, organic acid and various inorganic salts.

The water in horse manure is easy to evaporate, and it contains more cellulolytic bacteria. It is a thermal fertilizer, and the application of horse manure can improve the properties of clay.

●Sheep manure:

Sheep manure contains 24-27% organic matter, 0.7-0.8% nitrogen, 0.45-0.6% phosphorus, and 0.4-0.5% potassium. Sheep manure contains more organic matter than other livestock manure, and the manure is finer and thicker.

The heat of sheep manure is between horse manure and cow manure. It is also a thermal fertilizer, also known as a warm fertilizer. It is effective when applied on sandy soil and clay soil.

●Chicken manure:

Poultry manure contains 25.5% organic matter, 1.63% nitrogen, 1.54% phosphorus, 0.85% potassium, 11% carbohydrates, and 7% fiber. The water content of fresh poultry manure is relatively high.

Nitrogen in poultry manure (chicken manure, duck manure, goose manure, pigeon manure, etc.) is mainly uric acid. Uric acid cannot be directly absorbed and utilized by crops, and is harmful to crop root growth. At the same time, fresh poultry manure is easy to attract underground pests.

The above are commonly used manure and organic fertilizer raw materials, but it is worth reminding everyone that it has 3 advantages and 3 hidden dangers!（link）