Why is the effect of organic fertilizer not obvious? Analysis of the reasons for the poor effect of organic fertilizer? In recent years, especially since the beginning of this year, favorable policies on the organic fertilizer industry have been introduced, and the attention of agricultural enterprises to organic fertilizers has been heating up. The organic fertilizer industry is getting more and more hot, and it can be said that it has ushered in unprecedented development opportunities. At present, China's agriculture is changing from pursuing “quantity†to improving “qualityâ€. The development of green agriculture is the voice of this era, and the organic fertilizer industry is ushered in the spring under the requirements of such times!
In February of this year, the Ministry of Agriculture issued the “Action Plan for Organic Fertilizers to Replace Fruit Fertilizers for Fruits and Vegetablesâ€, demanding the implementation of organic fertilizers instead of chemical fertilizers, and strived to establish an organization and policy system for the replacement of chemical fertilizers with organic fertilizers in 3-5 years. The central government also arranged special funds to support fruit and vegetable tea organic fertilizer to replace chemical fertilizers. At the same time, it supported projects such as biogas projects and pilot projects for the utilization of livestock and poultry manure resources, and promoted the same direction to form a policy synergy.
It can be seen that vigorous development of organic fertilizer will become a major direction of the industry.
Zero increase in fertilizer application is expected to be achieved on schedule
Recently, the "China Fertilizer Utilization Efficiency (Feel Consumption) Evaluation Report (2000-2015)" was officially released. According to the "Report", in 2015, the national fertilizer consumption was 60.226 million tons, an increase of 262,000 tons compared with 2014, and the growth rate dropped sharply, only 0.44%. Experts pointed out that this is the first time since 2001 that the increase in fertilizer application rate has fallen to less than 1%. The target of zero fertilizer growth in China during the 13th Five-Year Plan period is expected to be realized as scheduled.
Commercial organic fertilizer blooms everywhere
Through policy guidance in recent years, various places have taken steps to promote weight loss and efficiency and develop green agriculture, and have achieved certain results.
In Shaanxi, in 2016, it promoted 955,000 tons of formulated fertilizer and 1.3 million tons of commercial organic fertilizer. The annual reduction of chemical fertilizer investment was 100,000 tons, and the fertilizer utilization rate increased by 3 percentage points.
In Sichuan, since 2016, we have established “fertilizer testing and fertilization†+ “water and fertilizer integration, comprehensive utilization of livestock and poultry manure, replacement of organic fertilizer, and integration of social services†in 12 counties (cities, districts). 180,000 mu of capacity-enhancing demonstration area;
Bio-organic fertilizer has received much attention
In the fertilizer industry, organic fertilizers are not isolated, but more ways to combine microbes. Bio-organic fertilizers and compound microbial fertilizers are highly regarded by the industry for their unique microbial efficacy. The development of bio-organic fertilizer industry conforms to the new situation of “slimming and reducing medicineâ€, “zero growth of fertilizerâ€, “sustainable agricultural development†and “ecological agricultureâ€, and is becoming one of the products that the agricultural capital market is chasing. At the same time, more and more agricultural enterprises are paying attention to soil health problems, and hope to increase the activity of soil through microorganisms in bio-organic fertilizers, thereby improving soil and improving crop quality.
In the action of national organic fertilizer to replace chemical fertilizers, the role of organic fertilizers in the sustainable development of agriculture is becoming more and more important, and the recognition of the industry is getting higher and higher. It can be said that today, when the whole people strive to achieve "ecological environmental protection", the spring of organic fertilizer is really coming. For a time, organic fertilizer became the toon in agricultural production, but there are also people who said that organic fertilizer I used it, did not feel the effect!
why?
Experts pointed out that the use of organic fertilizer is good, in addition to the production of the company itself in line with national standards, but also involves the correct promotion of the user's method of use. Therefore, the correct use of organic fertilizer is critical!
There are many reasons for the poor effect of organic fertilizers. There are two main categories. The first category is the cause of fertilizer itself, and the second category is the reason for using the method.
First, the cause of the fertilizer itself
1, nutrients
Due to the low nutrient content of the raw materials or the fermentation production process, some enterprises' organic fertilizers are fermented, their nutrients are not qualified, and some factories do not even have laboratories, and a batch of products enters the market.
2, pH value
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 blocked or die.
3, chloride ion content
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
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.
5, cation exchange capacity
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 can increase the stress resistance of crops, promote production, and promote germination.
7, small molecule fatty acids
In general, small molecular fatty acids are present in undecomposed 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.
9, harmful microorganisms
In the process of organic fertilizer production in many manufacturers, due to the level of technology, a certain temperature has not been reached, and most of the aphid eggs and coliforms have not been killed, which affects the healthy growth of crops.
Second, the reasons for using
1, used as top dressing
The user used the organic fertilizer as a fertilizer to topdress the fertilizer, and failed to cover the soil in time. The fertilizer was only on the surface of the soil, and could not be fully contacted with the soil, and could not improve the soil.
Coupled with sun and rain, beneficial microbes can not work, nutrients will also be lost with water, organic fertilizer buffer capacity, loose soil, water holding, heat preservation and fertilizer protection are also not reflected.
The best way of organic fertilizer should be combined with inorganic fertilizer as the base fertilizer, it is best to mix with the soil, or at least to do not expose the organic fertilizer to the surface of the soil, such as the application of acupoints.
2. Organic fertilizer is 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, it will cause the dead tree to die.
3, fresh feces
Direct use of fresh manure contains a large number of germs and parasites, and direct use can harm fruit trees.
Third, the best way to use machine fat is:
Fertilizer reduction, use
In the process of fertilization of crops, if organic fertilizer is applied alone, it is beneficial to fertility and fertility, but the fertilizer efficiency is slow. However, partial application of chemical fertilizers, while neglecting the application of organic fertilizers, often leads to soil compaction and affects soil physical properties.
1. Therefore, adding organic fertilizer, reducing fertilizer, and using it can have a good effect.
Comprehensive supply of nutrients for crop growth: high fertilizer nutrient content, fast fertilizer efficiency, but short duration, single nutrient, organic fertilizer is just the opposite, organic fertilizer and fertilizer can be mixed to meet the needs of nutrients in each growing season.
2, reduce nutrient fixation, improve fertilizer efficiency
After the fertilizer is applied to the soil, some nutrients are absorbed or fixed by the soil, which reduces the effectiveness of the nutrients. When mixed with organic fertilizer, it can reduce the contact surface between chemical fertilizer and soil, reduce the probability of chemical fertilizer being fixed by soil, and improve the effectiveness of nutrients.
3, save nutrients, reduce loss, improve the absorption of nutrients by crops
Fertilizer has a high solubility, which causes high osmotic pressure on the soil after application, affects the absorption of nutrients and water by crops, and increases the chance of nutrient loss. If mixed with organic fertilizer, it can overcome this drawback and promote the absorption of nutrients and water by crops.
4. Effectively adjust soil pH and improve soil structure
Alkaline soil is a single application of acid fertilizer. After the ammonium is absorbed by the plant, the acid formed by the combination of the remaining acid and the hydrogen ions in the soil will lead to acidity enhancement and soil compaction. If mixed with organic fertilizer, it can improve the buffer capacity of the soil, effectively adjust the pH, so that the soil acidity is not increased.
5. Increase soil nutrients and increase soil vigor
Organic fertilizer is the energy of microbial life, and chemical fertilizer is the inorganic nutrient that supplies microbial growth and development. The combination of the two can promote the vitality of the microorganisms, thereby promoting the decomposition of the organic fertilizer. Soil microbial activities can also produce vitamins, biotin, niacin, etc., increase soil nutrients, increase soil vigor, and promote crop growth.
In short, the promotion of organic fertilizer is a major strategic measure to implement the scientific development concept and build a new socialist countryside. It is an important measure to increase agricultural production and increase farmers' income. It is an important link to improve the quality of agricultural products and enhance market competitiveness. It is a major action to develop a circular economy to build a conservation-oriented society. It is a fundamental measure to reduce pollution, fertilize soil fertility, and improve comprehensive agricultural production capacity. It is an important way to reduce production costs and increase farmers' income.
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