What organic fertilizer has high nitrogen content

What organic fertilizer nitrogen content is high? Analysis of high nitrogen organic fertilizer types and characteristics

In modern agriculture, fertilization is one of the important means to improve crop yield and quality. Nitrogen is one of the essential nutrient elements for plant growth, it is involved in plant protein synthesis, chlorophyll formation and other physiological processes, so high nitrogen organic fertilizer plays an important role in agriculture. What organic fertilizer has high nitrogen content? This article will analyze different types of high nitrogen organic fertilizer to help farmers choose the right fertilizer.

Main types of high nitrogen organic fertilizer

There are many types of organic fertilizers, some of which contain a high nitrogen content. Common high-nitrogen organic fertilizers include livestock manure, green manure and certain nitrogen-containing plant residues.

1. livestock and poultry manure Livestock manure is one of the common high nitrogen fertilizers in organic fertilizer, especially chicken manure, pig manure and cow dung. These feces are rich in nitrogen, and nitrogen exists in the form of amino acids, urea, etc., which can be easily absorbed by plants. Not fully fermented livestock manure contains high nitrogen, if applied directly may burn the root, so it needs to be treated by compost fermentation to avoid nitrogen volatilization and soil pollution.

2. green manure Green manure is a way to improve soil fertility by planting specific plants (such as alfalfa, milk vetch, etc.). Green manure plants can absorb nitrogen from the atmosphere through nitrogen fixation during growth and convert it into nitrogen compounds that can be absorbed by plants. When these plants are plowed into the soil, they provide a rich source of nitrogen. Green manure not only provides high nitrogen, but also improves soil structure and promotes microbial activity.

3. nitrogenous plant residues Certain nitrogen-containing plant residues (such as the straw of legumes) can also be used as a source of organic fertilizer, containing higher nitrogen content. Especially after the crop harvest, the right amount of straw returned to the soil to improve the nitrogen supply of soil.

What organic fertilizer has high nitrogen content? -- Nitrogen content analysis

The nitrogen content of different types of organic fertilizer was different. Generally speaking, the nitrogen content of livestock manure, green manure and nitrogen-containing plant residues is between 5% and 7%, and the nitrogen content of some specially processed organic fertilizer products is even higher.

1. Nitrogen content of livestock manure The content of nitrogen in different kinds of livestock and poultry manure is different. For example, the nitrogen content of chicken manure is relatively high, usually reaching 3%-6%. The nitrogen content of cow manure and pig manure is slightly lower, about 2%-4%. Although these values are not very high, the fertilizer effect of livestock and poultry manure is sustained and balanced, suitable for long-term use.

2. Nitrogen content of green manure The nitrogen content of green manure is usually rich, especially legumes, such as soybeans and peas, which can greatly increase the soil nitrogen content through nitrogen fixation. The planting period of green manure is longer, so the accumulation of nitrogen is more significant. Generally speaking, the nitrogen content of green manure is about 1%-5%, but this will be affected by plant species and growing environment.

3. Nitrogen content of nitrogenous plant residues The nitrogen content of nitrogen-containing plant residues is roughly between 1% and 3%. For example, the nitrogen content of the straw residue of legumes is higher, especially after proper treatment, its fertilizer effect is more significant. After the residue is ploughed into the soil, it can gradually release the nitrogen source and promote the activity of soil microorganisms.

High nitrogen organic fertilizer application matters needing attention

Although high-nitrogen organic fertilizers are very important for crop growth, improper use may have negative effects on the soil or crop. Therefore, the application of high nitrogen organic fertilizer requires special attention to the following aspects:

1. Reasonable application rate The application amount of high nitrogen organic fertilizer should be reasonably adjusted according to the nitrogen content of soil and the demand of crops. Excessive application may lead to excess nitrogen in the soil, resulting in soil acidification, salinization and other problems.

2. Avoid nitrogen volatilization When applying livestock manure, compost fermentation is recommended to reduce the volatilization loss of nitrogen. Untreated feces, if applied directly, may result in nitrogen loss and an unpleasant odor.

3. Timely application Choosing the appropriate application time is also the key to ensure the effect of nitrogen fertilizer. For example, when applying green manure, it is best to do it during crop fallow or in autumn in order to maximize nitrogen accumulation and soil improvement.

Conclusion

Organic fertilizers with high nitrogen content mainly include livestock manure, green manure and nitrogen-containing plant residues. Different types of organic fertilizers have different nitrogen content, but they can effectively improve the nitrogen supply of soil and promote the growth of crops. When selecting and applying these fertilizers, farmers should apply fertilizer rationally according to the needs of crops and the conditions of the soil to ensure the healthy growth of crops and increase agricultural production.