Why the effect of organic fertilizer is not good and the method and strategy of improving the efficiency of organic fertilizer

Whether the effect of organic fertilizer is good, in addition to the production of the company itself to comply with national standards, but also involves the correct promotion of the use of the user by the dealers and manufacturers. Today, we mainly explain the reasons for the poor use of organic fertilizers, such as nutrients, pH, chloride content, salt content, cation exchange capacity, humic acid, small molecular fatty acids, heavy metals, harmful microorganisms and other factors.

The raw materials of organic fertilizer are mainly divided into these categories: manure, animal and plant residues (including weathered coal), sludge, domestic garbage. Generally speaking, the market price of sludge fertilizer and domestic waste fertilizer is the lowest. The state is also restricting the use of these two raw materials, and reviewing the fertilizer registration certificate, and prohibiting sludge fertilizer, while manure and plant residues are favored by investors.

Small-scale, semi-production, that is, organic raw fertilizer production enterprises without filling raw materials account for more than half of the system organic fertilizer production enterprises, and generally have a small scale. First, their organic fertilizer fermentation and deodorization process are not enough. The technical support is not enough. They equate the production of commercial organic fertilizers with farmers' self-made farmyard manures (technical indicators often fail to meet industry standards), only for simple stacking, and some even It is a simple compounding of several raw materials, and the unfertilized or fully decomposed organic fertilizer is sold to farmers. There is no necessary production equipment, no testing, and the production technology is extremely low.

In the current organic fertilizer standard, the definition of organic fertilizer involves the term fermented and decomposed, but there is no deficient identification standard in the whole organic fertilizer standard, which is subject to subjective judgment by the enterprise, leaving a vacuum zone. For example, fresh chicken manure is sold to growers, and as long as the documents are complete, it is qualified to test according to the organic fertilizer standard, but it is easy to use. Decomposing is the top priority in the production of organic fertilizers. It involves a series of production processes and fermentation strains.

Some organic fertilizers use really good results, and some organic fertilizers are not well-conceived because of their own quality and misleading, which may not be reflected in the planting process. Individuals will also have problems such as reducing production and burning seedlings. The use of organic fertilizer marked a big question mark.

There are also many fertilizer companies that indicate that organic fertilizer can be applied to topdressing, but the topdressing does not cover the soil and cannot play the role of fertilizer. Some organic fertilizers are used in the ground, but they can also be hot or even smelly. Some can cause various harmful organisms, some directly lead to crop wilting and death, and some lead to yellowing of leaves. Some can just smell the leaves when they are disassembled. Stinks and even unopened bags can smell stinks in the farmer's shop... These problems directly lead to the chilling of the growers. Due to the small amount of organic fertilizer used and the uneven quality, most of them are difficult to play their due role.

Analysis of poor use of organic fertilizers:

There are many reasons for the poor effect of the use of organic fertilizer. There are two major categories (excluding diseases), the first is the reason for the production, and the second is the use.

The first category: the reasons for the production control of the enterprise involves quality control. Here, we focus on factors such as nutrient, pH, chloride ion content, salt content, cation exchange amount, humic acid, small molecular fatty acids, heavy metals, harmful microorganisms, etc. Many of these contents do not appear in the organic fertilizer industry standards, but they have to be noted.

1. Nutrients. Due to the low nutrient content of the raw materials or the fermentation production process, some enterprises have fermented organic fertilizers, and their nutrients are not qualified. In addition, some factories do not even have laboratories, and a batch of products has entered the market. Some companies have found that the nutrients are not enough, but they are reluctant to add fertilizer supplements, and these products have also entered the market. Products produced by companies without a fertilizer registration certificate are not circulated in the market, and are generally directly oriented to users. This piece is particularly difficult to regulate.

2. pH. The pH of the raw materials themselves varies. During the fermentation process, the pH changes greatly. If the fermentation process is not well controlled, it may be found that the pH is above 8.5 or below 5.5. In particular, products that are too acidic can cause crop growth to be hindered or die, while organic fertilizers that are over-alkali are generally less acidic due to the fact that the soil in the south is generally too small.

3. Chloride ion content. Generally, no one will detect the chloride ion content, but some raw materials contain a lot of chloride ions, especially when used on crops with serious chlorine avoidance. Some manufacturers use ammonium chloride, a type of chlorinated fertilizer, to add organic fertilizer to increase nitrogen in total nutrients, which also leads to increased chloride ion content and affects crop growth.

4. Salt content. The high salt content of the fertilizer is like pouring a packet of salt into a limited area, and the crop is very affected. In general, the raw materials such as domestic sludge and kitchen waste have higher salinity, and the salt-tolerant crops may have yellow leaves, fallen leaves, wilting, and death. Nie Yongfeng believes that when the compost EC value is less than 9.0ms/cm3, there is no inhibition on seed germination.

5. The amount of cation exchange. Generally, the mature organic fertilizer has a large amount of cation exchange, maintains fertilizer and fertility, has strong buffering capacity, and has a good buffering effect on pH and salt, and plays an important role in maintaining good soil condition. The manure that is not decomposed organic fertilizer or even sold in the sun has a very low cation exchange capacity, which does not have the buffering effect. On the contrary, it will also harm the buffering effect of the soil itself and cause crop growth obstacles.

6. Humic acid. Fresh raw materials contain almost no humic acid, and humic acid is continuously produced during the fermentation of organic fertilizers, especially at high temperature fermentation (greater than 50 ° C). Humic acid combines with ammonium, potassium and sodium to have the function of stimulating crop growth. It also has the effect of attracting easily. It can also improve the stress resistance of crops, promote production and promote germination. Humic acid can enhance soil buffering because of its exchange capacity. ability.

7. Small molecule fatty acids. Ciavatta, et al. believe that lower fatty acids have an adverse effect on seed germination and plant growth. Small molecular fatty acids are easy to attract flies, which is easier to observe. In general, small molecular fatty acids are found in unfertilized materials, such as fresh chicken manure. The harm is that small molecule fatty acids can inhibit seed germination and inhibit root growth.

8. Heavy metals. Heavy metals accumulate in plants and eventually become concentrated on people through the food chain, causing harm to people. At the same time, heavy metals can also cause damage to the growth of crops. Due to the high cost of equipment, most enterprises do not have equipment to detect heavy metals. The agricultural materials market has only seen law enforcement departments to detect heavy metals.

9. Harmful microorganisms. The composting temperature is less than 5 days at 50 ° C or above, which can kill pathogenic bacteria and eggs and achieve harmlessness. However, in fact, many manufacturers of organic fertilizer production process, due to the level of technology, failed to reach 50 ° C or above but the time is maintained too short, most of the locust eggs, coliforms, etc. failed to kill most, which affects The crop grows healthily.

The second category: the poor use of organic fertilizers is related to the misleading promotion of fertilizer salesmen and to the user's own knowledge and habits. High-quality soil should provide stable and coordinated water, fertilizer, gas and heat rhizosphere environmental conditions for plant growth, support anchoring plants, maintain moisture and venting, and also have a buffering effect, so that the rhizosphere environment remains relatively stable. . Excellent soil in physical properties, solid, liquid, gas three-phase proportion is appropriate, bulk density, total porosity, size and pore ratio are more appropriate; chemical properties, cation exchange capacity, matrix fertilizer retention, pH value is close Neutral, with a certain buffer capacity, with a certain C / N ratio to maintain the biological stability of the matrix during cultivation. The organic fertilizer we produce is precisely to improve the soil towards this goal.

The second type of reason can be simply categorized as one: the method of use is wrong. Here are a few simple ways to use it.

1. Topdressing. The user used the organic fertilizer as a fertilizer to topdress the fertilizer. The fertilizer was not covered in time. The fertilizer was only on the surface of the soil. It could not be in full contact with the soil. It could not improve the soil. With the sun and rain, the beneficial microorganisms could not work. Nutrients will also be lost with water, and the functions of organic fertilizer buffering capacity, vegetable loose soil, water holding and ventilation, heat preservation and fat retention are also not reflected.

1, the best way of organic fertilizer should be combined with inorganic fertilizer as a base fertilizer, it is best to mix with the soil, but at least (organic fertilizer) should also be not exposed to the surface of the soil, such as the application of acupoints.

2. Organic fertilizers are in direct contact with crops. Some users are worried that the fertilizer is not enough, or they want to be effective as soon as possible. When using the organic fertilizer and the crop directly, the consequence is that the burning will be serious!

3. Fresh feces are used directly. Applying fresh manure is like a manufacturer selling unfertilized organic fertilizer, but it will be more serious if something goes wrong.

Organic fertilizer application and precautions

1. Apply at a sufficient temperature and at a suitable temperature. Regardless of the soil applied, there must be sufficient sensation to promote rapid decomposition and transformation.

Second, in order to make the fertilizer reflect the long-acting and quick-acting effect, the amount of organic fertilizer applied per mu should be sufficient for all fields where organic fertilizer is applied, but it should not be too much to avoid burning the seedling; the specific dosage depends on the product content and crop fertilizer. The characteristics of the period are determined.

Third, the amount of base fertilizer can not be used too much, especially in vegetable greenhouses can not be excessively applied; pay attention to the organic fertilizer in vegetable greenhouses must pay attention to the nitrogen content, the current market general organic fertilizer total nutrients have 5 - organic matter 45,10- 45,12-45, vegetable greenhouse teaching applies to 5-45 organic fertilizer content.

4. When the soil moisture is insufficient, it is necessary to promptly resist drought after application.

Note: According to soil and local climate and habits, the amount of fertilization is different, and the amount of fertilization should be determined according to the actual conditions of the local soil.

In addition, dealers should not pursue high profits when purchasing distribution products! At present, due to the slow conversion of organic fertilizer effects, some dealers know that individual products are not very reliable but still choose to operate.

There are two reasons for the analysis: First, because of high profits. Second, because the role of organic fertilizer is mainly to improve soil problems, it is usually applied with inorganic fertilizers. Good or bad products do not show obvious contrast in the short term. This has led to the difficulty of some of the major manufacturers' products being user-oriented.

In order to develop the organic fertilizer industry in a healthy way, let the best products reach the users at the fastest speed, and let the farmers friends really benefit: we call on the organic fertilizer production units to strengthen their own literacy and technology and make fertilizers superior to the national standards. Organic fertilizers that are really beneficial to crops and soils must actively improve the actual deficiencies in all aspects, rather than disregarding the feelings of users. (Organic Fertilizer Agrochemicals)

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