The hazards and prevention methods of heavy planting in greenhouse

Generally speaking, experienced farmers know that some crops are very taboo and planted in the greenhouse cultivation process. For more than three years, the probability of soil-borne diseases will increase, resulting in a serious reduction in production. Moreover, in general, there is no problem in the early stage, and it will become more and more serious in the later stage.

大棚重茬种植的危害及防治方法

1. Heavy planting hazards

Heavy planting was discovered long ago, not only in greenhouses, but also in widespread planting, but the situation is even more serious because of the confined space in the greenhouse. In the case of heavy planting, the structure in the soil is severely destroyed, and the degree of salinization is deepened, the pH is also destroyed, and the internal environment of the soil is greatly affected, and it is difficult to maintain the growth of the plant.

The soil microflora also been affected because of fertilizer, resulting in a large number of bacteria reduction, coupled with the long-term increase in planting caused by harmful bacteria, so the bacteria environment is not conducive to planting. Moreover, during the growth process, the plants will continuously emit some harmful substances from the root system. The long-term accumulation of these substances is not conducive to their own growth.

大棚重茬种植的危害及防治方法

2. Control methods

How do we deal with these problems caused by heavy planting? First is to solve the problem of soil salinization, because in general the greenhouse cultivation, but also to use large amounts of manure, manure salt among these are difficult to dispose of, but also worthwhile for desalination operation. Fertilizers also contain a lot of inorganic salts, so the long-term accumulation of these salts will cause serious problems in the structure of the soil. Therefore, when making planting, try to use more organic fertilizer, reduce the amount of fertilizer, in order to extend the soil life.

大棚重茬种植的危害及防治方法

Farmers with many years of greenhouse experience know the importance of bacterial fertilizer, because the beneficial bacteria in the soil are destroyed a lot, so it will cause the collapse of the flora balance. Therefore, in the process of fertilization, the importance of bacterial fertilizer is self-evident. Moreover, there are many ways to apply bacterial fertilizer, and a reasonable application method can increase the survival rate of the bacterial fertilizer and avoid the loss caused by blind addition.

In soil management, adjustments should also be made in multiple directions. For example, organic copper can be used to prevent the spread of certain bacteria, and do not add fertilizer before applying organic copper. At the same time as the use of the microbial agent, it is necessary to supplement some chemical drugs that promote absorption, so that the plants can grow rapidly.

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