How to solve the problem of soil fertilizer in sustainable agricultural development?

To use fertilizer reasonably, not to use drugs indiscriminately, otherwise it will bring harm to plants and soil, and the soil must be treated to minimize the use of chemical fertilizers.

This problem can be solved by the need for the state to issue relevant documents, implement infrastructure, study new countermeasures, and invent new fertilizers in the R&D sector.

If you want to solve this soil problem, then you need to monitor the soil, control the acidity and alkalinity of the soil, and then treat the soil.

1.Soil nutrient deficiency and deterioration of quality

Due to the improvement of agricultural production level and multiple cropping index, people's neglect of organic fertilizer, irrational use of chemical fertilizers, etc., the quality of cultivated land has shown a downward trend, which is comprehensively manifested in the continuous decline of soil basic fertility compared with the 80s of the 20th century (the decrease of soil nutrient content such as soil organic matter, available nitrogen and available potassium), the deterioration of soil physical properties (such as the increase of shallow bulk density of cultivated layer), the decline of soil buffering capacity, and the aggravation of various pollution, which have obviously restricted the sustainable development of agriculture.

2.Cultivated land is degraded and polluted, and the loss of cultivated land still exists

1 3 percent of China's cultivated land is harmed by soil erosion, 16% of the cultivated land polluted by industrial "three wastes", township enterprises, and pesticides, and the soil polluted by heavy metals exceeds 100 million km. According to the results of the land change survey provided by the Ministry of Land and Resources, as of October 31, 2006, China's cultivated land area was 100 million mu, close to the warning line of 1.8 billion mu of cultivated land in China.

Western scholars believe that if the cultivated land area does not reach 6 mu per capita, it will be difficult to solve the food problem in a long-term and reasonable way, and China's land carrying capacity (the maximum population carrying capacity on limited land) has long exceeded the limit. Cultivated land is the essence of the country's land, on the one hand, the carrying capacity of cultivated land has exceeded the limit, on the other hand, cultivated land is still rapidly decreasing, whether the limited cultivated land resources can be protected, directly affects the sustainable development of China's agriculture.

3.Chemical fertilizer resources are in short supply, and organic fertilizer resources are wasted

While actively increasing fertilizer input and achieving remarkable results, China's fertilizer resources are facing a shortage situation. There are fewer and fewer non-renewable energy sources such as coal, coke and natural gas for the production of ammonia feedstock; Although China's phosphate rock resources are relatively abundant, the distribution of phosphate rock is unbalanced, and the grade is low, accounting for about 85% of the phosphate rock is concentrated in the five provinces of Yunnan, Guizhou, Sichuan, Hunan and Hubei in the southwest and central and southern regions, forming a situation of "rich in the south and poor in the north" and "phosphorus in the south and transported to the north", which is not conducive to agricultural production.

On the one hand, China's potash fertilizer resources are quite poor, mainly distributed in Qinghai, Yunnan, Sichuan and other provinces, China's potash mines are very few, the grade is too low, flotation is difficult, and large-scale production has not been achieved, and potash fertilizer is mainly imported from Canada and Russia and other foreign countries. On the other hand, the development of the economy has led to the rise of the aquaculture industry, and large-scale farms produce a large number of organic fertilizer resources such as livestock and poultry manure, which are stacked at will and not fully utilized, resulting in environmental pollution and serious waste of nutrient resources.

There is a particularly serious problem, many people use soap at one time, which will damage the soil later, and will also lead to a large reduction in the yield of agricultural products, which may affect the fertility of the soil.

The current problem is that the utilization rate of fertilizer is not very high, the damage to the soil is relatively large, the use of fertilizer is very wasteful, there is no correct use of fertilizer, and there is no careful operation when using fertilizer.

The problems existing in the utilization of soil fertilizer are: the fertilizer utilization rate is not high, the fertilizer use method is incorrect, the fertilizer use is too much, the chemical fertilizer material is too large, and the organic fertilizer is used less.

Much of today's agricultural production relies on chemical fertilizers, and large amounts of nitrogen and phosphate fertilizers are used, which will lead to a decrease in soil fertility. Straw returning can actually be used to purify the soil.

Soil nutrients are the most important material basis for soil fertility, and fertilizer is an important material basis for soil nutrients, one of the important material bases for sustainable agricultural development, and plays an active role in improving yield and quality.

The role of fertilizers in agricultural production:

1.Increase crop yields.

2.Improves soil fertility.

3.Unleash the potential of improved seeds.

4.Compensate for the shortage of arable land.

New fertilizers can contribute to the sustainable development of agriculture.

First of all, we from the definition and essence of fertilizer, whether it is a new fertilizer or a conventional fertilizer, its essence must be fertilizer, without fertilizer, there is no way to talk about the so-called "new" and "old".

I think the new fertilizer is mainly reflected in the following aspects:1Function expansion or efficacy improvement, for example, in addition to providing nutrients and nutrients, it also has the functions of drought resistance, insecticide, disease prevention, water retention, drought resistance, etc., and secondly, the nutrient utilization rate is significantly improved.

2.Form renewal, that is, the material form of fertilizer has undergone new changes, from the previous solid fertilizer particles to gaseous, liquid, paste and other forms, so that the utilization efficiency and efficacy of fertilizer are greatly improved. 3.

The application of new materials, new fertilizers use raw materials, additives, additives and other materials, so that the fertilizer is more diversified, easy to use, efficient and stable. 4.The transformation of absorption methods, according to the influence of different crops and different cultivation methods, fertilizers with different characteristics have been specially developed to make fertilizers more targeted.

5.The efficiency of nutrient absorption by agricultural products is greatly improved through indirect feeding, such as with the help of microbial inoculants, fungi, etc., which provide nutrients indirectly through metabolism or other ways.

New fertilizers have huge advantages over old fertilizers. The new fertilizer can directly or indirectly provide the necessary nutrients for crops, and can also adjust the soil pH, improve the physical and chemical properties of the soil, biochemical properties, improve the soil structure, regulate or improve the growth mechanism of organisms, and the most important point is that it can improve the quality and properties of the fertilizer, thereby improving the utilization rate of the fertilizer. New fertilizer is an important way to promote the sustainable development of agriculture, relying on advanced technology to continuously strengthen the development and promotion of new fertilizers, is to ensure agricultural safety, improve fertilizer utilization, reduce environmental risks, and realize an important way to achieve agriculture.

Personally, I feel that it is okay, as long as the quality of fertilizer can be guaranteed, it can be sustainable, and it can be increased publicity, or it can also be engaged in some activities** and so on.

Yes, at this time, you can publicize it through the Internet, and at the same time, you need to improve the quality of fertilizer, and then you also need to improve the cost performance and reduce the quality of the product.

Yes, the main way is to promote and implement, so that the development of new fertilizers can be promoted, and at the same time, the development of agriculture can be promoted.

So far, it is definitely possible to promote the sustainable development of agriculture, and this new type of fertilizer also has many benefits for agriculture, fields, and crops. The main effect is to improve the soil of the farmland, and secondly, it can also increase the yield of these crops.

Organic fertilizer remediation: organic fertilizer can not only improve the physical and chemical properties of the soil and increase the fertility of the soil, but also the beneficial microorganisms in the organic fertilizer have a strong affinity for heavy metals, which can reduce the water-soluble and exchangeable components of heavy metals in the soil by forming insoluble metal-organic complexes and increasing the amount of soil cation exchange, so as to reduce its bioavailability.

Bio-organic fertilizer contains a variety of beneficial microorganisms, amino acids, peptides, enzymes, and microbial antibiotics.

The main role is to directly supplement carbon nutrition.

Improve the microbial environment and physical structure of the soil.

Inhibits pathogenic bacteria in plants.

Improves the plant's own immunity.

Improve the quality and storage and transportation resistance of crops.

Bio-organic fertilizer is a new type of fertilizer, and it is also a green fertilizer that can replace chemical fertilizer with great room for development in the future.

Soil: The soil is weathered from ancient ores, and the soil organic matter is formed by the leaf litter and root decay of plants and plants. The soil contains a variety of nutrients necessary for plant growth (organic matter, nitrogen, phosphorus, potassium, calcium, magnesium, silicon, sulfur, boron, zinc, manganese, molybdenum, iron and sodium and other trace elements).

Soil has the role of fixing plant roots, can provide nutrients for plants, soil organic matter can provide nutrients for microorganisms to reproduce, soil microorganisms metabolites (organic acids, plant growth regulators (gibberellin, indoles), etc.) in the process of reproduction, organic acids can dissolve some water-insoluble mineral elements and metal compounds in the soil for plant absorption, can promote the formation of a stable aggregate structure in the soil, etc. The level of soil organic matter represents the level of soil fertility. The so-called fertilizer:

Refers to the artificial application of inorganic fertilizers, with the pursuit of high yield, the amount of chemical fertilizers is increasing, not only the deterioration of the soil environment and the deterioration of the texture (fertilizer leaching causes water pollution, soil organic matter gradually decreases and the soil is becoming more and more compacted) For example: the long-term use of diammonium phosphate causes phosphate and calcium and magnesium plasma in the soil to form insoluble compounds, resulting in soil compaction, and causing the imbalance of soil elements and increasing fertilizer without increasing yield, which is the main factor of fertilizer in the ecological environment and sustainable development of agriculture. Sustainable development must test the soil formula fertilization, put an end to blind and unreasonable fertilization, develop bio-organic fertilizers, and eliminate or reduce the damage and pollution of chemical fertilizers to the environment and soil.

Therefore, the gradual restoration of soil physical and chemical properties and fertility is the direction of sustainable development. It is very important to learn the use of fertilizer and the science of soil fertilizer, which can guide farmers to calculate the most economical fertilizer application rate according to the fertilizer utilization rate according to the physical and chemical properties of the soil, the fertilizer supply capacity, and the amount of fertilizer required for crop formation yield, and cooperate with organic fertilizer to improve the fertilizer utilization rate and play a role in improving the soil and restoring the soil fertility. The level is limited!

Hope it helps.