In greenhouses or greenhouses, large quantities of chemical fertilizers are applied in successive years, and the high temperature in the greenhouses promotes the evaporation of large amounts of surface moisture. As a result, soil mineral nutrients accumulate on the surface of the soil as the water rises. With the annual coverage of greenhouse films, the indoor soil is not washed out by rain, causing soil erosion. Salinization, long-term accumulation of salt on the surface to form a thick layer of green moss. Not only does it affect the growth of roots and the absorption of water and nutrients, but it also induces deficiency of nutrients such as magnesium deficiency, calcium deficiency, and boron deficiency. The dwarf grows slowly, the roots don't go down and gather around the main root, the leaves are small, and the leaves are dark green and dull; the flowering results are small, the melons are small, the deformed melons are much, the yield is obviously decreased, and the melons are wilting when they are serious. The methods for preventing soil salinization are: increasing organic fertilizers, deep turning the soil, minimizing the use of fertilizers that are easy to form in the soil, such as ammonium sulfate. During the slack season, a large amount of salt is poured into the water or it is uncovered during the summer leisure season to allow the rain to wash the salt. Graft cucumbers with black-skinned squash to increase salt tolerance and reduce or avoid salt damage. Indoor mulching of sheds can significantly inhibit surface evaporation, which can play a role in inhibiting salt.
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