Crop planting is very important in China, what are the common types of fertilizer damage to crops?

The first common fertilizer damage of crops is the de-drying type of fertilizer damage. The key to the damage of de-drying fertilizer is that farmers do not control the amount of chemical fertilizer application in the case of top dressing, resulting in too much chemical fertilizer application. Or it may be due to insufficient soil moisture, which leads to excessive dissolution of chemical fertilizers in the soil after top dressing.

As a result, the moisture in the crops will reverse osmosis and the crops will be dehydrated. Crops that have been damaged by de-drying fertilizer will mainly show wilting, like suffering from cold injury or burns, which will inhibit the growth and development of crops at least and cause crop death in severe cases.

Then there is the fumigation type of fertilizer, which is a type of fertilizer commonly used by many farmers when planting crops. The main cause of fumigation fertilizer damage is due to the unreasonable application of chemical fertilizers such as sodium hydroxide and potassium nitrate. The fertilization time of this type of fertilizer is very important, the first thing to pay special attention to is that it can not be applied at a high ambient temperature, if it is applied at a high ambient temperature, it will cause a lot of nitrogen dioxide, resulting in nitrogen dioxide damage to crops.

The lower leaves of the damaged crops gradually turn yellow, which endangers their growth and development, and may even cause the whole crop to turn yellow and wilt.

To put it bluntly, the damage of burning fertilizer is caused by unreasonable application of fertilizer. If too much fertilizer is applied and if potassium nitrate, lime nitrogen and other chemical fertilizers are used to dress the seeds, the seeds are easy to be burned. After burns, the germination rate of seeds decreases, and seedling death occurs.

As a result, the overall growth and development of crops is affected, and in the case of spraying leaf fertilizer, if the concentration value is not well controlled and too large is applied, it will also cause the leaves to be burned.

When you top dress, you must pay attention to the type of fertilizer. There are many chemical fertilizers that contain toxins, such as the commonly used lime nitrogen, which is recorded in the soil. It is necessary to convert for a period of time to allow crops to be digested and absorbed normally.

In the case of conversion, lime nitrogen will produce some toxic substances, which will cause crops to be harmed, and in more serious cases, it will lead to the death of crops. Therefore, in the case of applying chemical fertilizers, we must pay attention to controlling the amount of chemical fertilizers used, and try to avoid or eliminate chemical fertilizers.

Dehydration fertilizer, burn fertilizer, fumigation, poisoning, and seed burning are all relatively common types.

Dehydration type fertilizer, burn type fertilizer, fumigation type fertilizer, toxic fertilizer, and burn type fertilizer.

Soil clumping, plant growth problems, and plant foliage withering are relatively common and very harmful to plant growth.

Usually the leaves turn yellow or the leaves dry up and fall off. In addition, the fruit will grow maggots or there will be no fruit.

Personally, I think that the variety of crops is definitely a good thing, which shows that we have more biodiversity and is also good for the development of our agriculture. For China, the variety of crops grown by farmers is a bad thing, because the Chinese population is large and needs a good harvest of crops, so there is no need for too many varieties.

The economic income of farmers growing food crops is too reckless. It is also normal to grow cash crops, increase agricultural output value, and increase economic income. How can we question whether this is a good thing or a bad thing?

Due to the balance of supply and demand in the market, food is cheap and food is difficult. The large import of cash crops is due to the demand gap. There is no area for grain cultivation in the Gregorian calendar, and grain cultivation is not popular.

The bigger the gap, the more expensive it is, and the higher the income of farmers. This is also the reason why farmers can grow cash crops without growing food, but there are also certain dangers in planting cash crops that are dry in the stove.

Most of the crops are profit-oriented, but they are also policy-oriented, as well as other local special circumstances. Due to the current basic work of smallholder farmers, the situation is very complex and cannot be carried out from a macro perspective and capacity**. Therefore, it can be said that the income is low and there is no security.

In some areas, special crops should be planted uniformly, but if the industrial chain fails, the crops cannot be properly planted, and the income is still not guaranteed. Therefore, in recent years, ** has been working hard to promote land approval and transfer to achieve large-scale and industrialized operation. At that time, ** will directly communicate and cooperate with these major customers to determine crop varieties, improve the industrial chain, agricultural income, national food safety and other farmers, and use land leasing funds to carry out.

The secondary and tertiary industries will gradually realize the transformation of urbanization. This is how "the rate of urbanization is growing at a rate of 1% per year".

In my opinion, unsalable agricultural products are still limited by distribution channels. The peasants can only bear the silent loss, let the businessmen lower **. Over the years, e-commerce has also played a role in solving farmer stagnation.

The market demand is still high. Experts say that ** is greater than demand. In order not to blindly follow the trend, we must strengthen the sales channels of agricultural products.

Villagers have set up professional cooperatives to work with nearby supermarkets, shopping malls and regular canteens to digest the higher sales of agricultural products**. Before planting, a mayor's market survey should be carried out to check the agricultural products that are actually needed in the market.

Crops should be selected according to the geographical environment and their own conditions. You can learn more if there is a locally supported planting project. If possible, we should learn more about scientific planting and planting knowledge, so that we will not blindly follow suit.

Crops should be planted according to the local climate. What climate is suitable for growing what crops. Before planting a crop, we should conduct a thorough survey of the local area to ensure that the crop is growing well.

Bad things, of course. Because if there are many types of crops, it will lead to poor planting methods and will not increase specific yields.

A lot of variety is not particularly good, because a lot of variety can reduce the yield, and it will also be mixed, which is not particularly good for the harvest.

More is better, so that the value of farmers' income will be higher, and the variety of crops will be more, and the yield will be higher.

The lack of production of a wide variety of new varieties has created a large limitation of the infertile finches, so that the varieties that are really suitable for the long time cannot be promoted, but only the varieties that are beneficial to themselves can be promoted.

The first is the special fertilizer for soil testing formula, which is suitable for the growth needs of various crops in the region according to the soil nutrient content in different regions and the demand for fertilizer elements of planted crops. It can achieve high efficiency and quick effect.

The second is to slow and control the application of fertilizer, mostly compound fertilizer, which gradually releases nutrients in the process of crop growth, which can achieve long-term purposes.

The third is liquid fertilizer, which is mostly a compound fertilizer with a combination of various nutrients, which can be absorbed and supplemented by foliar spray, with high efficiency and quick effect.

Fourth, foliar fertilizer, which can be elemental or compound, is also achieved through foliar spray and foliar absorption.

Foliar fertilizers, water-soluble fertilizers, controlled-release fertilizers, slow-release fertilizers, BB fertilizers, and fertilizers specially formulated according to the needs of the soil and crops.

Water-soluble fertilizer, controlled-release fertilizer, slow-release fertilizer, BB fertilizer, etc.

Organic fertilizer and chemical fertilizer are reasonably mixed, and the teacher introduced a chemical fertilizer called "Dad loves me".

Pesticide residues are indeed a serious problem in the food that people eat every day. Some vegetables are healthy and natural, but pesticides can also be sprayed during the cultivation process. When it comes to crop cultivation, the application of chemical fertilizers and pesticides is not necessarily correct.

Pesticides play a very important role in agricultural production. Farmers spray pesticides, mainly to prevent or eliminate crops, pests and diseases and other harmful organisms, and control the metabolism of harmful organisms through the application of pesticides. Many friends who have experience in agricultural production know that pesticides have a great effect on the production of agricultural products, and to a certain extent, they are the key to improving agricultural output.

Because the use of pesticides and fertilizers can increase crop yields and reduce farmers' investment in agriculture. The use of pesticides can easily and quickly reduce the damage of pests and diseases to crops, and the use of chemical fertilizers can increase crop yields and improve crop quality. Therefore, we need to properly deal with the use of pesticides and fertilizers, but also use pesticides and fertilizers rationally.

In the past, when the peasants were relatively backward, they did not use chemical fertilizers and pesticides in farming, and they could not afford to buy them at that time, or the peasants did not know much about agricultural knowledge, so in the past, China's agricultural development was slow, and the yield of crops with low productivity was also very low, so the peasants were wasting their efforts all year round, investing relatively large energy and time, but in the end only some grain was harvested.

Integrated Nutrient Resource Management (IPNM or INM) was proposed by the Food and Agriculture Organization of the United Nations (FAO), the International Rice Research Institute (IRRI) and some Western countries in the 90s of the 20th century, aiming to integrate the application of various plant nutrients, so that the maintenance or growth of yield is based on the efficient use of nutrient resources and environmental friendliness, without sacrificing the soil productivity of future generations. Zhang Fusuo and others are responsible for the comprehensive management of nutrient resources. From the perspective of agro-ecosystem theory, the integrated management of nutrient resources adjusts the balance of nutrient input and output of agro-ecosystems, regulates nutrient cycling and utilization intensity, and realizes the effective utilization of nutrient resources.

Integrated nutrient resource management is an extension of the traditional fertilizer concept in terms of concept, connotation and goals. The core features of the concept are nutrient resources and integrated management. It not only emphasizes the importance of fertilizer in connotation, but also pays attention to the comprehensive utilization of various nutrient resources, and applies the transformation from traditional fertilization fertilizer to the dynamic management of nutrient cycle in farmland ecosystem in a balanced manner in the supervision concept.

In terms of objectives, the goal of integrated nutrient resource management is not to simply pursue high yield, but to coordinate high yield, resource efficiency and environmental protection. Integrated management of nutrient resources is a theory of nutrient management and a technique of nutrient management.

Yes, these two factors are the main factors that determine crop yields, so controlling both of them can achieve high yields.

Yes, but not comprehensively, and it is important to note that the irrigation system is now very developed and does not need to rely on the weather for food.

Yes, it is also the target of the current key breakthrough in agricultural development, and everyone generally starts from these two places to conquer.

1) Increase the yield per unit area.

The excellent varieties all have high yield performance, and the potential for increasing yield is too large. Under the same tillage conditions, the yield of improved varieties with high yield potential can generally be increased by 10 20, and the yield increase effect of improved varieties is greater under better cultivation conditions. Yield is a comprehensive trait, mainly due to the yield factors and good population structure, strong resistance, and high light energy utilization, which is conducive to improving the yield per unit permeability area.

2) Improve quality.

The quality of excellent varieties is better, such as the protein and amino acid content of cereal crops, the oil content and composition of oil crops, the fiber quality of fiber crops, the sugar content of sugar crops, and the vitamin content of vegetable crops.

3) Keep the yield and quality stable.

Excellent varieties have strong resistance (tolerance) to frequent diseases and insect pests and adverse environments, which can reduce or avoid yield loss and quality deterioration. Pests and diseases are one of the main causes of low and unstable crop yields. Under the influence of poor external environmental conditions, excellent varieties also have high stress resistance, such as cold resistance, moisture resistance, early resistance, lodging resistance and other characteristics.

4) Expand the planting area.

Excellent varieties have a wide range of adaptability, but also have resistance (tolerance) to some special harmful factors, and the adoption of improved varieties can expand the cultivation area and planting area of the crop.

Organic pesticides account for the vast majority of the pesticides used in China, accounting for more than 90% of organic pesticides, and there are several inorganic pesticides, such as Bordeaux liquid, stone sulfur mixture, copper complexion, etc. Organic pesticides are a type of pesticides with organochlorine, organophosphorus, organofluorine, organosulfur, organocopper and other compounds as active ingredients.

Organic pesticides account for the majority of the pesticides used in China, accounting for more than 90% of organic pesticides, and there are several inorganic pesticides, such as Bordeaux liquid, stone sulfur mixture, and copper ammonia. The general term for the varieties of organic compounds in pesticides is a class of pesticides with organochlorine, organophosphorus, organofluorine, organosulfur, organocopper and other compounds as active ingredients.

At the end of the 30s of the 20th century, organic pesticides began to gradually replace inorganic pesticides, because of their high insecticidal efficiency, the world's grain production increased significantly, but at the same time, organic pesticides have a certain toxicity, long-term accumulation has brought great harm to human health and environmental ecology.