How to deal with the poor growth of vegetables and fruits grown in greenhouses due to poor soil quality?

The cultivation of vegetables, melons and fruits in solar greenhouses has relatively high requirements on the soil environment due to its fast growth and development, large fertilizer and water requirements, and high yield.

During the construction process of our new solar greenhouse, there will often be dead soil left in the field on the living soil layer on the ground and on the wall (earth wall structure).

Drilling walls, columns, filling the rear roof with soil, and leveling the interior of the greenhouse after completion all require machinery. However, excessive mechanical work causes the soil to become stiff and the soil structure to be damaged. .

After the new lighthouse was built, it was mechanically crushed, the soil became stiff, and the soil structure was damaged.

The original soil structure and properties of the soil layer have been destroyed, resulting in shallow soil layers, poor soil structure, weak permeability, poor seed suitability, low organic matter content and lack of nutrients.

It will directly affect the growth and development of vegetables and fruits planted that year. It may even leave hidden dangers for future production.

The newly built daylight temperature soil structure is destroyed, and the soil quality of the original field is generally poor. If it is used for greenhouse production, due to the increase in the number of planting stubbles, the land resource consumption will be large. We should take measures to improve the mature soil and improve the soil. Physical and chemical status. Lay a good foundation for future vegetable planting and production.

Soil improvement for new solar greenhouses

① During the construction process of new solar greenhouses, attention should be paid to protecting the soil. When building walls for greenhouses with earth wall structures, it is best to obtain soil from other places. Extracting soil is very time-consuming and labor-intensive, so we can only choose to extract soil on site to build the wall.

When borrowing soil from the site to build a wall, attention should be paid to first removing the mature soil from the original tillage layer at the borrowing site and storing it, and then taking the lower layer of dead soil for building walls. After completion, the straw and wheat straw can be turned over, then fully decomposed organic fertilizer can be applied, and then the removed living soil can be restored.

② Minimize heavy machinery working on the soil or moving and parking it. It is strictly prohibited to leave bricks, concrete and other construction materials in the soil during operation to prevent and reduce damage and pollution to the soil.

After the solar greenhouse was built, deep plowing and multiple tillage measures were taken to improve the soil.

③ Most of our current greenhouse construction is completed mechanically. It is certain that heavy machinery compacts the soil. After the completion of the project, measures such as deep plowing and multiple tillage should be taken for improvement and improvement.

④ Before improving the soil, eradicate weeds and remove broken bricks, stones, etc. Deep plowing is done once after building the shed and once before planting. Combined with deep plowing and deep plowing, the input of organic fertilizers is increased to improve the mature soil. Mix the organic manure thoroughly with the soil.

⑤ In order to make up for the poor soil quality of the new solar greenhouse, you can plow the soil between the rows when the crops are growing. It is best to plow twice during the seedling stage and the plant vegetative growth stage to create a loose soil environment. , promote plant root growth and development.

The soil quality of the newly built solar greenhouse is poor, and cultivating the tomatoes during the seedling stage can create a loose soil environment.

When building a new greenhouse, the original field soil will have soil problems such as excessive sandiness, barrenness and heavy soil, low soil salinity, etc. to varying degrees. We can improve the soil quality through artificial cultivation to improve the soil quality. The fertility of the greenhouse lays the soil foundation for multi-stubble cultivation.

①Improvement of overly sandy soil

The main characteristics of heavy sandy soil are excessive looseness, leakage of water and fertilizer, lack of organic matter, large evaporation, and low thermal insulation performance.

Applying large amounts of organic fertilizer is the most effective way to improve sandy soil. The buffering effect of organic fertilizers and soluble chemical fertilizers can be preserved in the soil and not be lost.

If the sand layer is not too thick, we use deep plowing to bring up the underlying clay and combine it with the sand. If you have time, you can plant a leguminous green manure and turn it into the soil to increase the humus in the soil, which can have an improvement effect.

To improve sandy soil, plant a crop of leguminous green manure and turn it into the soil to increase humus in the soil and achieve an improvement effect.

②Improvement of thin and heavy clay soil

The cultivation layer of heavy clay soil is very shallow, lacks organic matter, and has particularly poor permeability. The soil is as soft as a sponge when wet and as hard as stone when dry. It has poor water and fertilizer retention capabilities and cannot adapt to the good growth of vegetables.

Increasing application of organic fertilizer is the most effective way to improve barren and heavy soil. The organic matter in the soil will increase year after year.

In addition, it is relatively common to add fine sand to the barren and heavy soil of our new solar greenhouse. 5,000 kilograms of fine sand are applied to each acre of greenhouse, and the improvement effect will be obvious if it lasts for 2∽3 years.