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There is a big gap in the fertility of organic fertilizer, and it should be selected according to the establishment time of organic fertilizer enterprises, user reputation, and whether the products comply with national laws and regulations. Considering the cost of transportation, it should be selected nearby. Inferior organic fertilizer is not to be said for the time being, it is generally made by fermentation of industrial sludge, paper mill scraps, weathered coal, monosodium glutamate factory scraps, etc., and it is recommended not to use it.
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;
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The bottom fertilizer uses a large amount of organic fertilizer will not be ineffective, but the organic fertilizer has slow effect, the nutrients contained are complete, and the fertilizer effect is long-lasting, and it may take 1 year, 2 years, or even 3 years before the effect will gradually appear.
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The organic fertilizer used is not fermented and matured, and must be decomposed and fermented by microorganisms before it can be used as fertilizer. It is useless to apply organic fertilizer to the soil without fermentation, and the protein is broken down into ammonium before it can be absorbed by plants.
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There are effects, it's just that time is not enough. Organic fertilizer is the most natural and pollution-free fertilizer, which will not cause great damage to crops.
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China Bio-organic Fertilizer Trading Network: Organic fertilizer can effectively improve soil physical and chemical properties and increase soil organic matter content, but it must be applied correctly in order to obtain the desired effect. 1. Reasonable mixed application of sheep manure in the nutrient content in livestock manure is the highest, the decomposition speed is faster, the manure strength is more violent, in order to achieve stable manure strength, pig manure or cow manure should be added to the sheep manure mixed application.
Human feces and urine are fast-acting organic fertilizers, which should be applied with coarse organic fertilizers, phosphorus and potassium fertilizers. Long-term application of human feces and urine will cause soil compaction, which cannot be used continuously, and should be reused at intervals. When using human manure and urine as base fertilizer and top dressing, water should be added to dilute 3-4 times before application, and soil should be covered in time after application to prevent the volatilization loss of ammonia, and the amount of one application should not be too large.
2. Application method Organic fertilizer should be applied in ditches or dig holes, and cover the soil in time after application, and the fertilizer must not be sprinkled on the surface. Organic fertilizer can be applied to vegetables, which can be combined with microbial agents, and the fertilizer effect is better.
3. The amount of fertilizer should not be too large Organic fertilizer is large in volume and low in nutrients, and it needs to be applied in large quantities to meet the growth needs of crops, but not the more the better. For example, if Chinese cabbage is planted, it is enough to apply 4000-6000 kg of rotted organic fertilizer per mu.
Mu Nong Bio. 4. Organic fertilizer and chemical fertilizer can be applied together, which can learn from each other's strengths, help each other, and fully ensure that there is enough nutrient supply during the entire growth and development of crops, so as to improve crop yield.
5. Human manure can be applied to general crops due to crop fertilization, but the most suitable crops are leafy vegetables, cereals and fiber crops. Human feces and urine contain a lot of chlorine, so it should not be applied to chlorine-resistant crops such as sweet potatoes, tobacco, and potatoes.
6. Organic fertilizer often has pathogens, insect eggs and weed seeds, which are not decomposed and are not conducive to the growth of crops.
7. Base application, deep application of organic fertilizer has long effect and slow release of nutrients, so it should generally be applied as base fertilizer. Deep tillage combined with the application of organic fertilizer is conducive to the integration of soil and fertilizer, promotes the formation of soil aggregate structure, and effectively improves the soil.
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Analyze it on a case-by-case basis. Field crops can be used with some chemical fertilizers, and cash crops can be used exclusively with organic fertilizers. The dosage depends on crop yield, growth cycle and soil fertility.
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The so-called organic fertilizer refers to some natural fertilizers rich in substance, amino acids and other natural fertilizers that do not contain any chemical additives, organic fertilizer can improve the permeability of the soil, cultivate the beneficial bacteria content of the soil, and increase the role of soil organic matter, amino acids, biological potassium and other chemical fertilizers can not be replaced. There are two commonly used types of farm fertilizer and commercial organic fertilizer.
Farm manure mainly includes chicken manure, cow manure, pig manure, sheep manure and other livestock and poultry manure. The most used is chicken manure, let's mainly talk about the use of chicken manure and the amount of it. Chicken manure is rich in organic matter, amino acids, crude protein, refined protein, but also contains nitrogen, phosphorus, potassium and some trace elements, rich in nutrients, is a kind of organic fertilizer that farmers like very much, but if the chicken manure is used improperly, not only can not increase the yield, but also will produce unhealthy phenomena such as burning seedlings and seedling yellow, how to prevent the occurrence of these negative effects, that is, to use chicken manure correctly, in order to avoid the occurrence of these negative effects.
Chicken manure must not be used fresh chicken manure, must be fermented and rotted before use, because fresh chicken manure is too strong, using too much will burn the roots, and fresh chicken manure will absorb a certain amount of nitrogen fertilizer in the decomposition process, which will cause crop nitrogen deficiency and seedlings. So how do you rot chicken manure?
Generally, there are natural ripening and starter culture. Natural fermentation, generally in April and May, the chicken manure is piled into a generous pile, covered tightly with plastic sheeting, after about five months of high temperature ripening, to the autumn sowing and ploughing evenly sprinkled into the ground, is a good wheat bottom fertilizer. The starter culture is ripened, and the operation can be operated according to the instructions of the starter culture.
Generally, about two sides of cooked chicken manure are applied per mu, and the effect is better with a certain amount of chemical fertilizer. When the rain is insufficient, the plots with chicken manure should be watered at least one more time than those without chicken manure. Because the plots where chicken manure is applied are not drought tolerant.
Commercial organic fertilizer, generally processed from the waste of grain deep processing, common to do monosodium glutamate scraps, etc., this kind of organic fertilizer due to the high level, the general application amount is not very large. However, it must be applied with chemical fertilizers, and must not be used alone, in order to meet the growth needs of crops.
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It may be because the quality of the organic fertilizer is not good, it may be because the weather is not noticed when fertilizing, it may be that the fertilizer is sprinkled outside during fertilization, or it may be eaten by other animals during fertilization, all of these reasons may lead to the effect of organic fertilizer is not particularly good.
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It may be because there is a problem with the composition of the fertilizer, or it may be because the time of top dressing is not well controlled, so this effect will occur.
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The effect of organic fertilizer is not obvious, which is a very normal situation. It is not obvious to promote the growth of crops, the promotion effect on the stable yield and high yield ability of crops is not obvious, the promotion effect on improving soil quality is not obvious, and it is necessary to eat to know whether it is obvious to improve the taste and quality of crops. For the above problems, it is determined by the characteristics of organic fertilizer, and it is not that there is any problem.
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It may be that the amount of fertilizer applied by yourself is a little too small, and it does not meet the nutritional standards that a plant needs to meet, or it may be that the soil moisture is not good.
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Characteristics of organic fertilizer.
The advantages of organic fertilizer mainly include soil improvement, improving land use, reducing pollution and health risks, killing pathogenic bacteria, using organic fertilizer as breeding bedding, and inhibiting diseases.
1.Soil improvement.
Organic fertilizer is a good soil amendment. When organic fertilizer is used on farmland or degraded soils, it can increase organic matter, modify soil structure, reduce the amount of chemical fertilizers used, and can mitigate potential soil erosion.
2.Improved land use.
A considerable part of agricultural organic waste is still used in land after direct or simple treatment, although it also has fertilizer value and can play a role in improving soil quality. The use of organic fertilizer for agricultural waste has the following advantages: from the nitrogen in the waste to more stable organic nitrogen, although there is also a loss of some nitrogen, the remaining nitrogen is often not easy to be leached and volatilized; The initial carbon and nitrogen ratio of agricultural waste is high or low, and after direct application to the soil, it will lead to insufficient nitrogen or excess nitrogen in the soil, affecting crop growth, on the contrary, the carbon and nitrogen ratio of organic fertilizer after composting tends to be reasonable, which is more suitable for land use (decomposed organic fertilizer should theoretically tend to the carbon and nitrogen ratio of microbial bacteria, that is, about 16.
It is generally believed that the decrease of CN from the initial 25 30 to 15 20 indicates that the organic fertilizer has been decomposed and stabilized. PS: For every 25g of organic carbon consumed by microorganisms, they need to absorb 1g of nitrogen); The heat generated by the organic composting process reduces the amount of weed seeds in the waste, mitigating the effects of weed damage.
3.Reduce the risk of contamination and odor complaints.
In the process of urbanization and the continuous development of agriculture on a large scale, organic waste is beginning to become a burden rather than an asset. Especially for some agricultural breeding enterprises, because there is no large area of land to absorb these animal manure, the number of animals far exceeds the capacity of the land, making the manure treatment a headache.
Organic composting can mitigate the effects of these problems. Since organic compost products are often in demand, their way out is no longer an issue, and the nature of organic compost that can be stored and treated allows it to be transported farther away than manure or other raw materials. A well-run organic composting facility is almost free of odors and flies.
4.Organic fertilizer is used as a substitute for breeding bedding.
From the perspective of animal welfare and improvement of the breeding environment, the bedding layer should be laid in the breeding enclosure, which is conducive to adsorbing animal excrement and reducing environmental pollution on the one hand, and provides a comfortable ground environment for animals on the other hand.
Many studies have shown that powdered organic fertilizer can be used as a bedding material to replace sawdust and straw flour in farms.
5.Organic fertilizers reduce soil-borne diseases.
Good organic fertilizers have been found to mitigate soil-borne diseases in plants without the use of chemical control. This disease-inhibiting feature of organic fertilizers has been widely recognized and appreciated.
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The so-called organic fertilizer refers to some natural fertilizers rich in substance, amino acids and so on, which do not contain any chemical additives, organic fertilizer can improve the permeability of the soil, cultivate the beneficial bacteria content of the soil, and increase the role of chemical fertilizers such as organic matter, amino acids, and biological potassium in the soil. There are two commonly used types of farm fertilizer and commercial organic fertilizer.
Farm manure mainly includes chicken manure, cow manure, pig manure, sheep manure and other livestock and poultry manure. The most used is chicken manure, let's mainly talk about the use and dosage of chicken manure. Chicken manure contains rich organic matter, amino acids, crude protein, refined protein, but also contains nitrogen, phosphorus, potassium and some trace elements, rich in nutrition, is a kind of organic fertilizer that farmers like very much, but if the chicken manure is not used properly, not only can not increase the yield, but also will produce the phenomenon of burning seedlings, seedlings and other unhealthy conditions, how to eradicate the onset of these negative effects, that is, to use chicken manure correctly, in order to prevent the onset of these negative effects.
Commercial organic fertilizer, generally processed from the waste of grain deep processing, common to make monosodium glutamate scraps, etc., this kind of organic fertilizer due to the high price, the ordinary application amount is not very large. However, it must be applied with chemical fertilizers, and must not be used alone, in order to meet the growth needs of crops.
Organic fertilizer fermentation must be piled into fermentation, and the fermentation should be covered with a film or fiber cloth to avoid rain, sun exposure to the fertilizer in the nitrogen, phosphorus and potassium and other effective fertilizer components are lost, in this way, even if it is organic fertilizer, then your fertility is greatly discounted. In the process of fermentation, the organic fertilizer is not covered with a film fiber cloth to cover the fermentation, but is stacked outside to continuously let the rain and the sun, and the active ingredients such as nitrogen, phosphorus and potassium in the fertilizer are drenched away by the rain, and the nitrogen fertilizer is evaporated in the sun, and the fertilizer efficiency is greatly reduced.
If it is a farmyard fertilizer, it may be used improperly. If it is a commercial organic fertilizer, in addition to improper use, that is, you buy inferior organic fertilizer, or you use organic fertilizer alone without chemical fertilizer, the effect will never be good, at least with a certain amount of nitrogen fertilizer.
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