How is the lack of vegetables in greenhouses caused

There are interactions between nutrients in greenhouse vegetables, and the effect is related to whether the fertilization is reasonable or not. When the fertilizer application is reasonable, different nutrients can promote each other. For example, when nitrogen, phosphorus, and potassium fertilizers are properly combined, the yield can be increased, the quality can be improved, the environmental pollution can be prevented, and the fertilizer utilization rate can be improved; and when the fertilization is unreasonable, the nutrient supply is unregulated. When it happens, it will have the opposite effect. For example, greenhouses in early spring were not timely and moderately exposed, and excessive application of nitrogen fertilizer resulted in imbalanced metabolism of carbon and nitrogen nutrients in vegetables. They were thin and weak, not only reduced in quality but also susceptible to pests and diseases; one application of potassium fertilizer or application of ammonium Excessive amount of nitrogen fertilizer leads to calcium deficiency and magnesium deficiency in vegetables. Excessive use of phosphate fertilizer causes zinc deficiency and iron deficiency in crops. Therefore, in order to better play the role of nitrogen, phosphorus, potassium fertilizer, but also to prevent "more carbon deficiency nitrogen; potassium more calcium, magnesium; phosphorus more iron and zinc deficiency."

Geogrid

Geogrid

The Geogrid including Polyester Geogrid, Fiberglass Geogrid, Steel Plastic Composite Geogrid and Plastic Geogrid.

The geogrid is a major geosynthetic material. Compared to other geosynthetic materials, it has unique performance and efficacy. Commonly used for reinforcement of soil structure or reinforcement of composite materials.

The uses of geogrid: It is suitable for embankment and embankment reinforcement slope protection tunnel wall reinforcement large airport parking lot wharf cargo yard and other permanent bearing foundation reinforcement.

The feature of geogrid:

The high strength creep can adapt to all kinds of environment soil, and can satisfy the use of high grade highway retaining wall.

It can effectively improve the locking and occlusion of the reinforced bearing surface, greatly enhance the bearing capacity of the foundation, effectively restrain the lateral displacement of the soil, and enhance the stability of the foundation.

More suitable for deep-sea operations, embankment reinforcement, fundamentally solve the other materials do stone cage due to long-term erosion by the sea caused by low strength, poor corrosion resistance, short service life and other technical problems.

It can effectively avoid the construction damage caused by the crushing and destruction of machinery and tools in the construction process.

Steel Plastic Geogrid,Polypropylene Geogrid,Stretch Plastic Geogrid,Biaxial Plastic Geogrid

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