Anything that uses organic matter (compounds containing carbon) as fertilizer is called organic fertilizer. Organic fertilizer is divided into commercial organic fertilizer and farmyard fertilizer. Farmyard manure includes soil manure, stable manure, circle manure, composting, composting, green manure, human urine and manure, etc. So what is the effect of organic fertilizer?

1. It can increase the aggregate structure of the soil.

The soil aggregate structure is a kind of soil structure in which several single soil grains are bonded together to form an aggregate. Small pores are formed between single particles, and large pores are formed between aggregates. Small pores can hold water, and large pores can maintain ventilation. The soil with agglomerated structure can ensure the good growth of plant roots and is suitable for crop cultivation and growth.

2. It can improve the air permeability and porosity of the soil.

The air permeability of soil is proportional to the size of soil particles and is affected by soil moisture content, temperature, atmospheric pressure, and air temperature. Soil air permeability is closely related to soil structure, especially pore characteristics. Soils with a high proportion of total porosity or macropores have good air permeability. For example, well-structured soil has better air permeability than poorly-structured soil; sandy soil is better than clay soil; soil with moderate moisture content is better than excessively moist soil; top soil is better than lower soil.

3. It can improve soil and balance acid-base.

The strength of soil pH is often measured by its pH. Soils that are too acidic or too alkaline will reduce the availability of soil nutrients to varying degrees, making it difficult to form a good soil structure, seriously inhibiting the activity of soil microorganisms, and affecting the growth and development of various crops.

4, it can improve the quality of agricultural products.

Changes in the main organic components in the fruit:

a. Moisture. Except for chestnuts, walnuts and other nuts and other dried fruits, the moisture content of most fruits is 80% to 90%.

b. Sugar and acid. Sugar, acid content and sugar-acid ratio are the main indicators of fruit quality. The sugar in the fruit is most glucose, fructose and sucrose. Starch is present in the young green fruit. Different fruit types have different sugars. For example, grapes, figs, cherries have more glucose and fructose; peaches, plums, and apricots. There is more sucrose than reducing sugar. The organic acids in fruits mainly include malic acid, citric acid, and tartaric acid. Apples, pears, and peaches are mainly malic acid, and citrus, pomegranate, and figs are mainly citric acid.

c. Pectin. The internal cause of fruit hardness is the binding force between cells, the mechanical strength of the cell constituents and cell turgor, and the binding force between cells is affected by pectin. Immature fruit original pectin exists in the middle gum layer of the primary wall, which connects the cells to each other. As the fruit matures, it becomes soluble pectin and pectinate under the action of enzymes, making the pulp soft. The content of cellulose and calcium has a great influence on fruit firmness.

d. Aroma and peculiar smell of fruits. Aroma and peculiar smell are important factors that determine fruit quality. Many fruits have astringent taste, mainly tannins. The main bitterness component of citrus is naringin. The fruit also contains vitamins. Vitamin A is a yellow fruit with a lot of carotene, such as apricot, loquat, persimmon, etc. Prickly pear, jujube, Chinese kiwi, and sea buckthorn contain relatively high vitamin C, and young fruit containing chlorophyll contains high content With the growth of the fruit, the absolute amount increases, but the content per unit of fresh weight decreases. The peel is higher than the core, and the sunny side is higher than the backlit side.

5. Contain various nutrients.

Organic fertilizer not only contains rich organic matter and organic acids, such as humic acid, amino acid, and fulvic acid, but also contains various large, medium and trace elements. Although the content is low, it is relatively comprehensive. Generally speaking, nitrogen grows leaves, phosphorus grows flowers, potassium grows fruits; silicon protects roots, calcium protects fruits, magnesium protects leaves, sulfur protects flavor; iron prevents yellow leaves, copper prevents deciduous leaves, molybdenum prevents mosaic leaves, zinc prevents leaflets, Boron anti-roll leaf.

6, it has a long-term effect.

Real organic fertilizer must not be dissolved or dissolved, because organic fertilizer contains a large amount of cellulose and lignin and cannot be dissolved by water. It must be decomposed by microorganisms in the soil and converted into amino acids and carbohydrates. The root system of fruit trees absorbs, which is a slow and long-lasting process.

7, it is synergistic.

After the organic fertilizer is decomposed, it provides energy and nutrients for soil microbial activities, promotes microbial activities, accelerates the decomposition of organic matter, and produces active substances that can promote crop growth and improve the quality of agricultural products. It not only eats melons and melons, but also eats wheat and wheat. More importantly, the organic acids decomposed by microorganisms can activate the fixed mineral elements in the soil to be fully absorbed and utilized.

8. It has water retention.

Research data points out: the humus in organic fertilizers contains fat, wax and resin, because these substances can infiltrate the soil clumps in the process of soil formation with high fertility, making it hydrophobic, reducing the soil wetting process and The moving speed of capillary water reduces the evaporation of soil water and enhances the water holding capacity of the soil, thus improving the soil moisture status.

9, with heat preservation.

Organic fertilizer has the function of absorbing heat and increasing temperature, which is beneficial to the germination and growth of fruit tree roots. The organic fertilizer will release a certain amount of heat during the decomposition process to increase the temperature of the soil. At the same time, the organic fertilizer has a large heat capacity, good insulation performance, and is not easily affected by changes in external heat and cold. It prevents freezing in winter and heatstroke in summer. This is for the roots of fruit trees. Germination, growth and wintering are very beneficial.

10. The content of soil organic matter is an important indicator of soil fertility.

Soil organic matter generally refers to life-derived matter in the soil. Soil organic matter is an important component of the solid phase of the soil and one of the main sources of plant nutrition. It can promote the growth and development of plants, improve the physical properties of the soil, promote the activities of microorganisms and soil organisms, and promote the decomposition of nutrient elements in the soil. Improve soil fertility retention and buffering. It is closely related to soil structure, aeration, permeability, adsorption, and buffering. Usually, under the same or similar other conditions, within a certain content range, the content of organic matter is positively related to the level of soil fertility.

Soil organic matter content is one of the important indicators for testing soil fertility, and organic fertilizer can increase soil organic matter content.