How to deal with the excessive use of chemical fertilizers?

First of all, we need to open the ventilation and water channels, which is to leave a gap in the soil so that air and water can pass freely and be used by crops at any time. This requires us to add organic matter to the soil. The main organic matter is the product of livestock and poultry manure, straw and other decay.

The characteristics of organic fertilizer are more obvious, with complete nutrients, long fertilizer efficiency, no pollution, improve the physical and chemical properties of the soil, increase the ability of soil water and fertilizer retention, and improve the quality and yield of agricultural products, but it should be noted that it should be rotted when applied.

In the process of formula fertilization, it is necessary to fully improve the fertilization parameters, continuously accumulate the amount of fertilizer and fertilization timing of different crops, and continuously enrich and improve the fertilization parameters and optimize the formula fertilization on the basis of the original test of soil and plant nutrient requirements. Try not to be busy, not busy from the fertilization. In the process of fertilization, it is necessary to fully improve the parameters of fertilization, such as yield nutrient uptake, soil nutrient use efficiency, etc., which will change with the change of production conditions.

In general, if the soil is not overused by chemical fertilizers and changes occur, then it is necessary to use it scientifically.

It should be supplemented by policy measures to expand the substitution of high-efficiency and environmentally friendly modern pesticides; Law enforcement agencies should also intensify efforts to clean up the production and circulation of pesticides, and prevent illegal pesticides from entering the field of agricultural production. Only in this way can we promote the scientific reduction of the use of chemical fertilizers and pesticides to cause premature aging, and it is easy to cause the deficiency of other nutrients, which ultimately affects the yield and quality of crops. Similarly, excessive application of potassium or micronutrient fertilizers can also affect the growth and development of crops.

If it is too long, the flowers have a major fertilizer reaction, then it is a bit troublesome, if it is only a slight reaction, you can make up for the above methods. For some valuable flowers and trees with soft roots, the roots should not be washed and the soil should be replaced, and the affected flowers and trees should be immediately watered 2 or 3 times, and a high concentration of fertilizer should be discharged. Wash for 1 2 hours in the water flowing through the pot, the water surface is 2 3 cm higher than the pot surface, reduce the fertilizer content of the potting soil as soon as possible, and place the flowers in the shade.

1. Improve personal awareness.

On the one hand, they should learn, listen more and ask more, and if they don't understand, they should ask friends who understand, don't use them privately, on the other hand, the relevant agricultural departments should also do a good job in propaganda work, explain through multiple channels, so that farmers can have a clear understanding.

2. Soil testing and fertilization.

The situation of the soil in different plots is different, and it can not be fertilized according to the same standard, so it is necessary to promote soil testing and fertilization technology, nitrogen, phosphorus, potassium and trace elements, which are lacking, and can be appropriately increased when fertilizing, so as to ensure the nutrients of crops and avoid excessive phenomena, but the popularization of this measure has a long process.

3. Reasonable crop rotation.

Avoiding perennial planting of a certain crop, reasonable crop rotation, and ensuring the combination of land use and nutrients can not only effectively improve the yield of crops, but also have a positive effect on the improvement of the environment and ecology.

1. In terms of crop fertilization, it is necessary to change the traditional way in the past, and change blind fertilization to optimized formula fertilization. 2. It is necessary to strengthen and improve the technical measures in formula fertilization. In the process of formula fertilization, it is necessary to enrich and improve the fertilization parameters, such as nutrient absorption per unit yield, soil nutrient use efficiency, fertilizer utilization efficiency, etc.

3. It is necessary to increase the proportion of organic fertilizer in formula fertilization. Organic fertilizer has the characteristics of complete nutrients, long fertilizer efficiency and no pollution, and high-efficiency organic fertilizer can increase the content of soil organic matter, improve the soil water storage and fertilizer retention capacity, improve the physical and chemical properties and aggregate structure of the soil, and improve the quality of agricultural products.

If you use too much fertilizer, it is best to water it quickly, after watering it a few more times, the excess fertilizer will seep deeper into the ground with the water.

Pay attention to the application of medium and trace elements.

Many farmers in planting, after using nitrogen, phosphorus and potassium compound fertilizer for base fertilizer, they no longer top dressing, ignoring the application of medium and trace elements, and increasing medium and trace elements can make the nutrient balance **, so as to improve the yield of crops.

There are many reasons for this phenomenon, including the high nutrient content of chemical fertilizers, which is convenient to use, saving trouble and effort, and farmers are afraid of trouble; There are also rural livestock and poultry breeding, resulting in less farm fertilizer, and the fertilizer effect is relatively slow, and the use of more laborious and laborious reasons due to excessive pesticide residues in the land leads to the damage of the young roots of planted plants, can not grow normally; The most important thing is that too much chemical fertilizer leads to low fertilizer utilization rate and soil compaction in the following period. Therefore, we need to pay attention to this issue.

The emergence of pesticides and fertilizers has made up for the lack of organic manure, supplemented the nitrogen, phosphorus, potassium and other elements of crops, eliminated pests, greatly increased crop yields, solved the problem of food and clothing, and improved farmers' income. Pesticides and fertilizers have become the necessary raw materials for agricultural production, due to the long-term use of chemical fertilizers and various herbicides, the soil quality has been seriously deteriorated, mainly because the soil aggregate structure is destroyed and lacks permeability, the absorption rate of dry fertilizer in the morning and at night is poor, and the roots of plants do not develop to form seedlings, and the dead seedlings directly cause poor harvest or even no harvest.

First of all, we should understand the current situation of the use of pesticides and fertilizers in China, and analyze the reasons for the irrational use of pesticides and fertilizers. to be able to find the corresponding countermeasures. Only then can we raise the level and standard of scientific agricultural production in our country.

In recent years, farmers may find that not only the amount of pesticides used to deal with the same disease is increasing, but the types of pesticides used also need to change. A large part of this is due to the changing resistance of pests and diseases.

1.Stop using pesticides and fertilizers, use self-made manure or commercial organic fertilizer produced by regular manufacturers, and gradually improve the soil. 2.

Advocate the return of bellflower to the field, and plant some milk vetch crops to return to the field when fallow, and gradually improve the soil. In the case of land compaction, the best solution is to use farmhouse fertilizer. Apply enough farm fertilizer, in addition to adding microbial fertilizer, and then turn the soil and dry the soil!

If you use too much fertilizer, you can dilute the fertilizer by watering it, which can minimize the harm caused by excessive fertilizer.

Hello answer. 1. Don't apply any decomposing agent if the organic fertilizer is not well decomposed, the symptoms of root burning can appear within two or three days after the vegetable is planted, and at this time, many vegetable farmers think that the use of fermentation and decomposition agent for rapid fermentation is a good way, but in view of the fact that the vegetables have been planted, the use of fermentation and decomposition agent to quickly ferment the organic fertilizer in the soil is undoubtedly to make the vegetables suffer more serious damage. Therefore, in the case of root burning, fermentation and rotting agent should not be used.

2. Ventilation should be strengthened to avoid the spread of air damage, and the ammonia produced by organic fertilizer in the process of decomposition cannot be volatilized, and it is easy to smoke vegetables. Therefore, when the phenomenon of fumigation seedlings occurs, the number and time of air release should be increased, so that the ammonia gas in the shed can be discharged out of the shed in time to avoid the occurrence of gas damage.

If you use too much fertilizer, you can add some organic fertilizer, or use a conditioner from the soil, so that you can avoid the damage of chemical fertilizer to the crop.

At this time, you should go to a lot of watering and not dilute the concentration of these fertilizers at all, so that the effect can be reduced.

Polluting soil, polluting groundwater, soil eutrophication, etc., is not a good thing. As for treatment, it should be done in a gradual manner, and the attitude towards excessive use of fertilisers should not be black and white.

1. Excessive nitrogen fertilizer harm: excessive nitrogen supply of crops hinders crop growth and produces toxic nitrite, crops are greedy for green and late maturity, and the growth period is prolonged. 2. Hazards of excessive phosphate fertilizer:

Cause soil sulfur-deficient crops to lose green and yellow. 3. The harm of excessive potassium fertilizer: excessive application of potassium fertilizer will cause a decrease in the absorption of magnesium and calcium by crops.

4. In addition, excessive application of chemical fertilizers will lead to soil compaction, aggravated acidification, and serious salinization, and lead to extremely low fertilizer utilization rate, groundwater pollution, poor crop growth, reduced quality, and low efficiency. 5. The harm of reapplying chemical fertilizer and ignoring organic fertilizer is the decline of soil organic matter.

Excessive use of chemical fertilizer should be watered more, which can be diluted should be better.

The hazards of excessive use of chemical fertilizers and pesticides are as follows:

1. Deterioration of soil properties, if a large number of single-element fertilizers are applied in farmland, their nutrients can not only be absorbed and utilized by crops, but also some chemicals such as nitrogen, phosphorus, and potassium are easy to be consolidated by the soil to form various chemical salts, resulting in imbalance of soil nutrient structure, deterioration of physical properties, and excessive content of harmful metals and harmful bacteria in some plots, resulting in deterioration of soil properties.

2. The quality of the product declines, when planting crops, if a certain chemical fertilizer is applied, it will lead to crop nutritional disorders, and the transformation and synthesis of some substances in the body will be blocked, resulting in a decrease in product quality, and too much fertilizer will lead to melons and fruits that are not sweet and vegetables are not fragrant.

3. Excessive amount of chemical fertilizers for environmental pollution will cause soil water-soluble nutrients and other substances to flow into groundwater and rivers after being washed by rainwater and farmland irrigation, resulting in groundwater and river pollution in some areas, and the death of fish and shrimp in some rivers and lakes.

4. The large gap between production and income ratio and the excessive application of a single fertilizer will cause crop nutritional imbalance and nutrient imbalance, which will only increase the cost and not increase the yield, resulting in low-quality agricultural products that are not easy to sell, and then bring losses to farmers.

The brief introduction of chemical fertilizers is as follows:

Chemical fertilizers, referred to as chemical fertilizers. Fertilizers made by chemical and physical methods containing one or several nutrients needed for the growth of crops, also known as inorganic fertilizers, including nitrogen fertilizers, phosphate fertilizers, potassium fertilizers, micro fertilizers, compound fertilizers, etc., are inedible.

They have some common characteristics, simple composition, high nutrient content, fast fertilizer efficiency, strong fertilizer, some fertilizers have acid-base reaction, generally do not contain organic matter, no effect of soil modification and fertilization. There are many types of chemical fertilizers, and their properties and application methods are quite different.

The above content reference: Encyclopedia - Fertilizer

What are the hazards of excessive use of chemical fertilizers in agricultural planting? What is the response? As the saying goes, "a flower, just rely on fertilizer", it can be seen that the importance of fertilizer in the process of crop planting, I believe that most farmers, no matter what crop, are inseparable from the use of chemical fertilizers, however, in recent years, some farmers due to the lack of firm Sinovac use technology, resulting in the use of chemical fertilizers, there have been varying degrees of damage.

<> for example, it has been observed that in the process of using chemical fertilizers, many farmers like to use excessive nitrogen fertilizers, which seems to promote the growth of crops, but also brings various harms. Soil damage, in the process of crop growth, need to absorb a large amount of nutrients from the soil, the nutrients contained in the soil itself are limited, the purpose of applying chemical fertilizers, is to improve soil fertility, promote crop growth, but once long-term excessive application of chemical fertilizers, soil nutrient structure is unbalanced, its nature, if can not improve fertility, will not only lead to a decline in fertility. Long-term overuse of chemical fertilizers is a common cause of soil compaction and soil acidification.

Once the soil is acidified, the activity of harmful heavy metals contained in the soil will increase, normal nutrients will be dissolved, which is what we call nutrient loss, and crop growth will be hindered. Yields are low, and over-application of fertilizers will not increase income, but on the contrary, it will reduce total income.

The cost increases, the excessive purchase of fertilizer, the innocent increase in the cost of planting, under the same conditions, if you want to double the fertilizer per acre of land, you will have to double the cost of fertilizer, and the total income will fall. Reduced yields, excessive use of fertilizers will not increase yields, but may reduce them. When production decreases, total revenue decreases, even without considering costs.

Reduce the quality If in the process of crop planting, the excessive single use of certain elements, and the use of other elements is reduced, resulting in disorder and low quality of crops, such as excessive use of nitrogen fertilizer, the use of phosphate fertilizer is very small, resulting in a decline in crop quality, in addition, there may also be Menglong, easy lodging, affecting production.

Environmental pollution, the more fertilizer is used, the greater the relative loss, whether it is in the soil or evaporated into the air, the ecological environment pollution will become more and more serious. In the case of soil pollution, for example, excessive application of chemical fertilizers can contaminate the surrounding soil. When it seeps into the groundwater and flows into rivers and lakes, the fish in the water are affected, and when people drink it, their health is also harmed.

This is a chain reaction of the system, and the degree of harm can be **.

It may cause root rot or dryness of crops, which will lead to a large reduction in crop yields, and in severe cases, it may lead to the loss of soil fertility. When fertilizing, don't apply too much at one time, be sure to prescribe the right medicine, pay attention to the efficacy, you can choose the way of foliar spraying, and then water in time.

It may lead to the loss of soil fertility, which will lead to the loss of nutrients in crops, and then lead to a decrease in the absorption capacity of magnesium and calcium in crops, and may cause decay or dryness; When using chemical fertilizers, you must prescribe the right medicine, do not use too much at one time, in addition to watering more, to loosen the soil in time.