How to reduce the impact of "Red Land" on vegetables

The “red land” mentioned here does not refer to red soil but the land of brick-red powdery material that appears on the surface. This situation is due to the fact that organic fertilizers have been used too little for a long time, and chemical fertilizers have been used excessively, causing excessive concentrations of soil salt ions. In particular, when water is frequently sprayed during the middle and later stages of crop growth, water and soil are fertilized, fertilizers accumulate on the soil surface as a result of deterioration of soil properties, and once the water evaporates, a red brick powdery substance appears on the surface. This is a serious soil salinization. Performance. Once the soil shows such a situation, it will have a great impact on the growth of vegetables, such as curly and dried vegetables, falling fruit and fruit, reduced yield, poor fruit quality, and so on. In severe cases, vegetables may cause death.

After this situation has emerged, what methods should we use to minimize our threat to vegetable growth? Obviously, in addition to re-applying organic fertilizers and irrigation salts before planting vegetables, the threat can be deferred from:

First, the amount of fertilizer should be reduced. Blind and unrestrained topdressing of chemical fertilizers is the root cause of surface redness. Instead of fertilizing the amount of fertilizer needed for growing vegetables, one type of fertilizer was blindly applied, causing excessive accumulation of certain single elements in the soil, which led to the problem of salinization. Therefore, reducing fertilizer use is the primary issue.

Followed by straw return. Spreading a layer of wheat, straw, or corn stalk evenly on the planting or operating lines of crops can reduce the evaporation of soil moisture, regulate ground temperature, inhibit weeds, promote the growth and development of vegetables, and increase soil organic matter after rotting. Improve the physical and chemical properties of the soil and enhance the buffer capacity of the soil for fertilizers and water.

Again, increase the biological bacterial fertilizer. Because the nutrients in the soil are sufficient, you do not need to apply excessive fertilizer. Topdressing bio-fertilizers (such as root and more) together with chitin, increase the beneficial microorganisms in the soil, promote root growth, activate the soil, and reduce salt ion damage to the soil.

In addition, soil testing formula fertilization is essential. Before planting, conduct nutrient measurement on the soil in the greenhouse, determine the fertilizer supply capacity according to the nutrient content in the soil, and match the fertilizer requirement law of the vegetable, how much it is applied and how much it is lacking, in order to reduce the amount of chemical fertilizer and reduce soil salting. Change.

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