Organic fertilizer is not used less, but the effect is not seen, why?

It needs to be used in conjunction with chemical fertilizers.

The role of organic fertilizers.

1. Increase the content of soil organic matter.

Regular application of organic fertilizer can significantly increase the content of soil organic matter, which is conducive to maintaining the stability of soil organic matter and improving the physical and chemical properties of soil.

2. Promote the formation of soil aggregate structure.

Soil organic matter, calcium carbonate and polysaccharides have a good effect on the stability of soil structure. The application of organic fertilizer can increase the content of soil organic matter more than the application of manure, especially the production of more five-carbon sugars, six-carbon sugars and polysaccharides. This is particularly beneficial for the formation of water-stable aggregates, such as a significant increase in water-stable aggregates that are larger than them.

3. Provide nutrients.

Organic fertilizer contains various nutrients required by crops, and the use of organic fertilizer can significantly increase the content of nutrients in the cultivated soil, especially potassium. In 1995, the Ministry of Agriculture surveyed the cultivated land in 12 provinces across the country, and found that the phosphorus content in the cultivated land increased compared with before 1990, while the cultivated land area lacking potassium and trace elements was expanded.

4. Regulate the nitrogen content of the soil**.

In the early stage of decomposing large straws, microorganisms absorb nitrogen from the soil to form their own somatic cells, resulting in the biological fixation of soil nitrogen, which plays a role in temporarily preserving nitrogen. When the microorganisms die, this part of the nitrogen is decomposed and released. In addition, the application of organic fertilizer increases the energy matter in the soil, and is also conducive to biological nitrogen fixation, the organic matter content in organic fertilizer can reach about 30%, and relevant data show that the energy released per carbon oxide can be used by nitrogen-fixing microorganisms to fix 10 40mg of nitrogen.

5. Improve the activity of soil microorganisms and soil enzymes.

After the application of organic fertilizer, the number of microorganisms increased significantly, especially in the soil near the application of organic fertilizer, which had a good effect on accelerating the release of organic nutrients and activating the nutrients in the soil. In addition, organic fertilizers can reduce diseases in certain crops.

Other advantages of the application of organic fertilizers in agricultural production include:

1. Nutritional balance, promote crop growth, increase yield significantly, and high fertilizer efficiency;

2. Improve the quality of agricultural products;

3. Inhibit pathogenic bacteria and reduce pests and diseases;

4. Loosen and improve the soil to reduce nitrate pollution in the soil;

5. Increase the absorption of water by crops, enhance the drought resistance and lodging resistance of crops;

Personally, I think that the effect of applying organic fertilizer is generally better than that of inorganic fertilizer, but how to use it depends on the type and growth status of crops, and you can't blindly use a fertilizer. There are many types of organic fertilizers. Frequently used organic fertilizers include rapeseed cake, cottonseed cake, bean cake, sesame cake, tea seed cake, bellflower of various crops, animal and plant residues, human and animal manure, etc.

The following is a detailed introduction to the respective classifications of organic fertilizer and inorganic fertilizer and the advantages of organic fertilizer.

1. Classification. 1. Organic fertilizer: generally divided into animal organic fertilizer and planting organic fertilizer.

1) Animal organic fertilizer: such as human manure, bone meal, animal manure, feathers, hooves, fish, eggs and other wastes.

2) Plant organic fertilizer: such as cake fertilizer, plant ash.

Weeds, leaves, green manure, Chinese herbal residues, sake lees, etc. Organic fertilizer is rich in nutrients and has long fertilizer efficiency, which can improve soil structure and promote soil fertility. It forms aggregate tissue, increases soil fertility and retains water, but the fertilizer efficiency is slow. It must be applied after fermentation and decomposition before use.

2. Inorganic fertilizer: chemical synthesis or processing of natural ores, rich in mineral nutrients.

1) Nitrogen fertilizer: urea, ammonium sulfate.

Ammonium nitrate, ammonium carbonate, etc.

2) Phosphate fertilizers: such as superphosphate, phosphate rock powder, calcium, magnesium phosphate fertilizer and compound fertilizer (potassium dihydrogen phosphate.

Wait. 3) Potash fertilizer: such as potassium chloride.

Potassium sulfate, potassium nitrate.

Wait. Inhibits unwanted pathogens.

Second, the advantages of organic fertilizer.

1. Organic fertilizer contains a large number of microorganisms that are beneficial to crops. The proliferation of these beneficial microorganisms can effectively inhibit the reproduction of harmful microorganisms. In this way, many soil agricultural diseases will be inhibited or even eliminated, that is, the soil is disinfected, saving farmers money and labor to buy pesticides, and it is also a pollution-free treatment method to improve the quality of agricultural products and benefit trace elements.

of absorption. 2. Promote the absorption of trace elements by crops, although the soil contains a large number of trace elements, but plants cannot directly absorb them. Organic fertilizer contains appropriate organic acids, and microorganisms in organic fertilizer also secrete organic acids in life activities.

These organic acids can convert trace elements such as copper, zinc, boron, and magnesium in the soil through biochemical reactions, and the plants can absorb and utilize nutrients, so organic fertilizer can improve the fertility of the soil itself.

3. Organic fertilizer contains phosphate-solubilizing bacteria, potassium-solubilizing bacteria and nitrogen-fixing bacteria, which can provide crops with potassium and phosphorus that are not easy to be released in the soil for a long time, and can fix nitrogen in the air and supply it to crops. Although the short-term fertilizer effect of organic fertilizer is not as good as that of chemical fertilizer, the long-term use of organic fertilizer promotes crop growth.

4. The microorganisms in organic fertilizer will produce many secondary metabolites that are beneficial to plant growth, such as Bacillus subtilis.

There are many of these secondary metabolites, such as the growth-promoting substance (auxin.

Abscisic acid, gibberellin.

Gibberellin can promote more flowering, more fruit set, improve fruit quality, and shorten the time to market.

Organic fertilizer is a little bit better because it can control some things in the soil better, which can make the crops grow a little better.

Organic fertilizer is better, because the nutritional value of organic fertilizer is higher, which can promote better growth of plants and can improve income.

Organic fertilizer is better. The main reason is that the fertility of organic fertilizer is more sufficient.

Organic fertilizer needs to be decomposed into inorganic matter by microorganisms before it can be absorbed and utilized by plants, the fertilizer effect is slow but lasts for a long time, and the nutrients contained in organic fertilizer are relatively balanced, but can not provide a large number of elements such as N, P and so on that plants require, but can provide some trace elements, and chemical fertilizers can quickly provide a large number of elements such as N, P and so on that plants need, the harm of chemical fertilizer is that it is easy to harden the soil, which is not conducive to plant growth, and chemical fertilizer is easy to dissolve and be absorbed by plants relatively quickly, However, it is also easy to enter the river with rainwater, which can cause eutrophication of the river.

2.The use of chemical fertilizers can cause pollution, reduce soil fertility, increase soil erosion and increase energy consumption. However, chemical fertilizer is necessary for permanent fruit trees, because the mineral nutrients absorbed by fruit trees must be in an inorganic form before they can be used by fruit trees.

Plants absorb these nutrients and form various organic matter through photosynthesis for animal and human use. The remaining organic matter must also be decomposed into inorganic forms by saprophytes before it can be absorbed and utilized by fruit trees.

3.When the mineral elements formed by the decomposition of organic matter and the mineral elements from rocky soil, air and rainwater cannot meet the needs of continuously improving the yield and quality of fruit trees per unit area, the reasonable application of chemical fertilizer is a bionic cultivation measure that is completely in line with the laws of nature. Once the basis of this measure is lost, the growth of fruit trees will be out of balance, which will eventually lead to the reduction of fruit tree yield and quality.

Soil compaction and increased soil erosion are not caused entirely by the application of chemical fertilizers, but mainly due to the reduction or non-application of organic fertilizers after the use of chemical fertilizers and improper irrigation. Under the premise that the organic matter is fully returned to the soil, even the long-term application of chemical fertilizers will not aggravate soil erosion due to damage to the soil structure.

Organic fertilizer, commonly known as farmhouse fertilizer, refers to a slow-release fertilizer with a large amount of biomass, animal and plant residues, excrement and biological waste. Organic fertilizer not only contains macronutrients and trace elements necessary for plants, but also organic fertilizer is rich in organic nutrients and is the most comprehensive fertilizer. The main role of organic fertilizer in agricultural production is manifested in the following aspects:

First, soil improvement and fertility improvement After organic fertilizer is applied to the soil, organic matter can effectively improve the physical and chemical conditions and biological characteristics of the soil, mature the soil, enhance the ability of soil retention and fertilizer and buffering, and create good soil conditions for crop growth.

Second, to increase the yield and improve the quality, organic fertilizer is rich in organic matter and various nutrients to provide nutrients for agricultural crops. 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 agricultural products.

Third, improve fertilizer utilization. Organic fertilizer contains a variety of nutrients but has a relatively low content and slow release, while chemical fertilizer has a high unit nutrient content, few components and is released quickly. The two are applied rationally and complement each other to decompose organic matter.

The organic acids produced also promote the dissolution of mineral nutrients in the soil and fertilizers. Chemical fertilizer and organic fertilizer promote each other, which is conducive to crop absorption and improves fertilizer utilization efficiency.

<> there is no fertilizer content in the fertilizer, because the fertilizer produced by the regular manufacturer can only register the pesticide information on the packaging bag, and it is not allowed to mark the content of the fertilizer and the ratio of nitrogen, phosphorus and potassium, and the effect of the product will not be exaggerated on the packaging bag. When choosing a fertilizer calendar, you should carefully check whether the three certificates on the fertilizer packaging bag are complete, and the regular medicine and fertilizer will definitely register the three certificates of pesticide finger patting.