(2) Deeply plough the soil. After the vegetables are harvested, deeply plough the soil, turn the topsoil rich in salt to the lower layer, and turn the lower layer soil with relatively less salt to the upper layer to reduce salt damage.
(3) Dissolve the salt and wash it. After harvesting the ripe vegetables in summer, use the gap between stubbles to remove the film. After several days of sunshine and rain in rainy season, the influence of soil salinization can be eliminated. Or in high temperature season, after heavy water irrigation, cover the ground with film to raise the temperature under the film, which can not only wash salt, but also sterilize.
(4) Deep application of base fertilizer, skillful topdressing, deep application of chemical fertilizer as base fertilizer, and trying to "eat less and eat more meals" when topdressing. It is best to mix chemical fertilizer and organic fertilizer into the ground and then plough it. Topdressing is generally difficult to apply in depth, so the amount of fertilizer applied each time should be strictly controlled, and too much fertilizer should not be applied at one time, otherwise the concentration of soil solution will be increased.
(5) Covering the ground, that is, covering the ground with plastic film, has obvious effect on inhibiting the salt on the soil surface.