How to effectively regulate the soil problem of greenhouse?

1. What are the problems of greenhouse soil planted year after year?

1. Low soil organic matter content.

The excessive use of compound fertilizer for many years and the lack of attention to the input of organic fertilizer will lead to excessive nitrogen and phosphorus mineral elements in the soil, and the lack of organic matter content, so that the aggregate structure of the soil will be destroyed and the soil will be compacted and salinized.

2. Soil problems caused by continuous cropping obstacles.

Deterioration of soil physical and chemical properties and secondary salinization.

Continuous planting destroys the soil aggregate structure, resulting in soil compaction and poor permeability; The application of chemical fertilizers in large quantities leads to excessive salt in the soil, resulting in secondary salinization and acidification of the soil, affecting the availability of soil nutrients and causing physiological diseases.

Imbalance of soil nutrients.

In the process of planting, fertilization is relatively fixed, basically nitrogen, phosphorus and potassium, resulting in the imbalance of soil nutrients, and at the same time, there is more nitrogen, phosphorus and potassium, antagonizing other medium and trace elements, and the crop is prone to deficiency symptoms, and finally the growth is hindered, and the yield and quality are reduced.

Toxin accumulation in the soil.

The metabolites of pathogenic microorganisms and the exudates of plant residues and roots will remain in the soil, which will inhibit the growth and development of crops of the same species or family replanted with the same stubble or the next stubble.

Soil microorganisms are reduced.

Organic matter is the food of soil microorganisms, with the continuous reduction of soil organic matter, beneficial microorganisms are also reduced, resulting in soil compaction, and the reduction of beneficial microorganisms will reduce the ability to inhibit harmful bacteria and the ability to transform nutrients, so the greenhouse soil-borne diseases are serious.

3. Accumulation of salt in the soil.

In greenhouse cultivation, the lack of rainwater leaching in the soil in the shed, coupled with the unreasonable fertilization, leads to a large amount of salt accumulation in the tillage layer during the fertilization process. As a result, the soil salt concentration is higher than the concentration of plant cell solution, and the crop is difficult to absorb water, and root rot is easy to occur.

4. Nitrogen dioxide and ammonia excess poisoning.

In the process of fertilization, excessive nitrogen fertilizer, ammonium nitrogen is easy to convert into nitrite NO2 gasification, resulting in white spots and small yellow spots and other fertilizer symptoms on the leaves and backs of vegetables, and at the same time, there is too much free ammonia in the plant, and pests and diseases are very easy to infect.

Second, the solution:

Soil conditioning: base fertilizer - reduce compound fertilizer, increase bacteria fertilizer, carbon organic fertilizer.

Aonongle + Diliwang + carbon organic fertilizer: It can effectively repair the soil and solve the conditions of soil salinization, acidification, and compaction. At the same time, it can replenish the soil with beneficial microorganisms, mineral elements and organic matter.

Aonongle: It is made by fermentation of 8 kinds of beneficial microorganisms such as nitrogen-fixing bacteria, carbon-fixing bacteria, and Bacillus thuringiensis after the compound of Chinese herbal medicine, seaweed and minerals, and contains polysaccharides, alkaloids, amino acids, humic acids, algae and other high-energy substances, as well as potassium, calcium, magnesium, phosphorus, sulfur, iron, zinc, boron, manganese, molybdenum and other mineral elements.

First take soil samples in the greenhouse, and then send them to a professional testing institution for testing to see what elements are missing, and then supplement fertilizer to the ground according to the missing elements, such as potassium deficiency.

At this time, we can apply some organic fertilizer to the land to supplement the trace elements of the land, and can also reduce the damage of pests and diseases, which can be effectively conditioned.

I also grow greenhouses in my own home, and the soil in my greenhouse is generally replaced with new soil after planting, so that it is conducive to the growth of plants.

We can replace the soil in the greenhouse, although this project is very large, but it can increase the yield of our crops, thereby increasing the income of farmers.

If the greenhouse soil turns red, it should be reasonably improved. Reasonable crop rotation: For our conditional planting, we should pay attention to reasonable crop rotation when planting, which can effectively alleviate the nutrient imbalance caused by heavy cropping.

In addition, for plots with a relatively long stubble period, our growers can plant crops with strong fertilizer absorption capacity Heavy stubble soil should be increased with organic fertilizer and trace elements. Treat bacteria with bacteria and supplement trace elements. Adjust acid and supplement calcium, sprinkle quicklime, plant ash, etc.

<> deep ploughing and ploughing of the land: greenhouse vegetable planting due to long-term high temperature and humidity environment, coupled with excessive application of chemical fertilizers and watering, so that the gap between the soil is reduced, the soil oxygen content is insufficient, the air permeability is poor, and the content of soil-borne viruses and pest eggs is high As for why it causes the phenomenon of soil red, white and green, through so many years of investigation and analysis, I think there are three main reasons, the first is that the soil in the greenhouse is not affected by rainfall, and the salt in the soil cannot be lost with rainwater or leached into the deep soil layer.

Fertilization should be applied in proportion to different plants, remember that nitrogen fertilizer is too high, and must be fermented when applying farmhouse fertilizer, because high temperature can evaporate 80% of the salt, and prevent ammonia from burning seedlings. It is caused by factors such as long-term over-exploitation of soil, long-term cultivation, and unfavorable soil protection. In more detail, it is caused by the excessive loss of some elements in the soil caused by the long-term application of chemical fertilizers, pesticides and fungicides and the long-term planting of the same type of crops, as well as the serious lack of soil organic matter.

Greenhouse crops absorb and remove a large number of neutral and alkaline nutrients from the soil when forming yields, which makes the soil develop towards acidification due to the lack of timely replenishment. According to our investigation and analysis of crop soil, greenhouse crops are generally over-fertilized, the fertilization process is relatively fixed, basically nitrogen, phosphorus and potassium, resulting in the imbalance of soil nutrients, at the same time, nitrogen, phosphorus and potassium more, antagonistic other trace elements, crops are prone to deficiency symptoms, and eventually the growth is hindered, yield and quality decline.

The soil has more sand and less mud, and the structure is poor; water and fertilizer leakage, susceptible to drought; The soil is barren and thin, with little nutrient content; Soil erosion is serious, and the soil layer is shallow. The original tillage layer of the soil, which is what we call "cooked soil", is basically pushed into the back wall, and the soil in the shed is the soil below the original tillage layer, that is, the "raw soil". The soil can be modified appropriately, and the sandy soil should be mixed with clay to improve the soil quality.

There are few nutrients such as organic matter, nitrogen, phosphorus and potassium in the greenhouse soil, so it is necessary to increase the amount of fertilizer in the first year to improve soil fertility. Organic fertilizers such as manure are applied in large quantities, but they must be fully decomposed, evenly spread and then ploughed. Poultry manure such as chickens and ducks has high nutrient content, and at least 10 square meters per mu are used to hollow out; The nutrient content of manure of livestock such as cattle and horses is low, but the organic matter content is high, which has a good effect on improving the soil, and can be applied 20 cubic meters per mu.

In order to increase the content of organic matter in the soil of the new greenhouse, improve the soil, it is a good method to apply rotten straw. The straw of harvested corn, wheat, etc. is cut short to 5-10cm, soaked through, urea or a considerable amount of other nitrogen fertilizer with 3%-5% of the straw weight added, and then special fermentation strains are added for fermentation. After a month, the straw that is fully fermented becomes a high-quality organic fertilizer.

Especially for clay soils, the use of fully decomposed chicken manure, cow manure and other livestock manure and straw to improve the soil is very effective. In addition, the nitrogen content of manure is high, and chemical fertilizers should be applied when plowing the soil, using 80-100 kg of compound fertilizer with high phosphorus and high potassium per mu, and appropriate amount of micro-fertilizer should be applied according to local conditions.

Deep turning of the soil and increasing the application of organic fertilizer can better loosen and improve the soil, which is conducive to the growth of melon and vegetable roots. After spreading fertilizer, it is best not to use rotary tillers, plows and other agricultural tools when plowing the soil, especially rotary tillers, whose depth of ploughing soil layer is not enough. Manually turn the depth of the two shovels with an iron shovel to make the depth reach 40-50cm, and turn the applied fertilizer deep evenly.

Because it is "raw soil", there are few harmful bacteria in the soil, but the beneficial bacteria are also lacking. By using biological fertilizer, the beneficial bacteria in the soil can be quickly replenished, making it a dominant community and promoting the robustness of the root system of melons and vegetables. The amount of biological fertilizer applied in the new greenhouse is large, and it is best to combine general application with hole application.

Before ploughing the soil, sprinkle part of the biological fertilizer into the shed along with the manure and so on, and turn it deeply. When planting, sprinkle part of the bacterial fertilizer in the planting hole, which can play a good role.

The greenhouse soil is compacted and cracked, the fertilizer utilization rate is low, and more biological fertilizer is applied and the organic fertilizer is completely fermented.

Greenhouse soil may have the following problems:

1. Insufficient fertility: due to the continuous cropping between the bond bands for a long time and the production of a large number of vegetables, the nutrients in the soil will be gradually depleted, resulting in insufficient fertility and affecting the growth and yield of plants.

2. Soil salinization: A large amount of fertilizers and pesticides are usually required in the greenhouse, and these chemicals may accumulate in the soil, forming salinization, resulting in stunted plant growth.

3. Soil acidification: Due to the need to strictly control the environment and temperature in the greenhouse, the number and types of microorganisms in the soil may change, resulting in an imbalance in the pH of the soil and affecting the normal growth of the plants.

4. Pest and disease problems: The greenhouse is usually closed and humid, which is easy to breed various germs and insect pests, affecting the growth and yield of plants.

5. Soil structure problems: Due to long-term continuous cropping and compaction, the soil structure may become loose or dense, affecting the extension of the root system and the growth of plants.

In response to these problems, the following measures can be taken to improve:

6. Crop rotation and leisure: crop rotation and leisure can reduce the damage of continuous cropping to the soil and restore the fertility and structure of the soil.

7. Apply organic fertilizer: Organic fertilizer can improve the fertility and water retention capacity of the soil, and help improve soil quality.

8. Control the amount of fertilization and pesticides: Appropriate fertilization and pesticides, as well as strict control of application time and methods, can reduce the accumulation of chemicals in the soil and avoid problems such as salinization and acidification.

9. Strengthen pest control: regularly clean up the weeds and residues in the greenhouse, strengthen health management, and adopt biological control and other measures to reduce the occurrence of pests and diseases.

10. Increase soil aeration: By loosening the soil and increasing organic matter, it can increase soil aeration and root stretching, and improve soil structure.

If the greenhouse soil turns red and wants to be conditioned, how should it be conditioned?

Hello, how to regulate the red soil of the greenhouse: 1. Reduce soil evaporation: use drip irrigation or break the bottom layer of the plough (that is, the soil is deep turning), or remove the greenhouse film in the summer shade to reduce the coarse number and low evaporation, reduce the dissolution and evaporation of soil salt separators, reduce the movement of salt separators to the soil surface, and reduce soil evaporation after deep ploughing.

Peel off the canopy film in summer. 2. Adjust soil pH: acidic soil is applied alkaline substances such as plant ash, quicklime and other alkaline substances to increase soil pH.

Alkaline soil is applied with acidic substances such as gypsum and ferrous sulfate to reduce the solubility of soil ions: by adding some chelating agents, the solubility of soil ions is increased, and in the case of irrigation, the salt separators move to the depth of the soil with the water, reducing the collection of salt separators on the soil surface. 4. Reasonable fertilization

Organic fertilizer, bacterial fertilizer, and microbial fertilizer are applied to improve the soil physical and chemical environment. Hope it helps. If my source answer is helpful to you, please also give a like (in the lower left corner), look forward to your like, your efforts are very important to me, and your support is also the motivation for my progress.

Finally, I wish you good health and a good mood!

For the soil with too much acidity, 50-60 kg of lime can be applied per mu every year, and enough farm fertilizer can be applied, and only lime should not be applied without rotting farm fertilizer, so that the soil will become yellow and thin, and 40-50 kg of grass ash can also be applied to neutralize soil acidity and better adjust the water and fertilizer condition of the soil.

Through the chelation of organic substances, the mobility of soil salt separators can be increased, the concentration of soil salt separators can be reduced, and the redness of soil surface can be solved from the source.

I think it's better to put a little fertilizer in the soil and turn it over to make sure that the soil is evenly balanced.

High-quality amendments can be used to add nutrients to the soil, so that the reddened soil can be adjusted after a long period of cultivation.

Generally, it is necessary to have more fertile soil, as well as some better plants, which can actually make the soil more ruddy and promote development.

Ban chemical fertilizers, and increase the application of organic biological fertilizers, especially straw organic fertilizers. It can not only reduce the appearance of harmful cations, but also consume nitrogen in the topsoil during the decomposition process, reduce the excessive accumulation of nitrate nitrogen, and increase the buffering effect of soil.