What are the hazards of heavy planting? Solve heavy hazards through soil organic matter

What are the hazards of heavy planting? First of all, let's first understand what is heavy planting. The simple planting is simply to plant the same crop for one or more years, and then find the cause of the heavy planting hazard. In the final prevention and control measures, It will be explained in detail below.

重茬种植有哪些危害?

I. Planting hazards caused by heavy mites

1. Crops are prone to dead seedlings and rotten trees in the seedling stage, and sometimes there are germination and seedlings, and no roots;

2, crop growth is not robust, weak disease resistance, easy to breed physiological diseases, more susceptible to disease, insects, premature aging, early pull phenomenon;

3. Crop yield reduction, which seriously affects the economic benefits of the crop.

Second, the cause of serious problems

1. Enrichment of harmful pathogens

The micro-ecological balance of soil and crop rhizosphere is destroyed; harmful pathogenic microorganisms become dominant populations, and the beneficial microbial populations of plants are degraded, resulting in plant rhizosphere, providing an unfavorable growth environment for growth.

2. Plant essential nutrient imbalance

Because the same crop is continuously planted, the plant's preferred nutrient elements are missing, especially trace elements, and sometimes the plants are unpleasant or harmful.

导致重茬的原因

3. Human factors

The human factor is the continuous use of chemical fertilizers, which causes land degradation such as soil acidification, salinization and compaction.

4. Continuous crop planting

Continuous planting of the same crop will increase the accumulation of root exudates in the crop, and the root exudates of the same plant will have significant pearl suppression on the same plant.

Third, the solution to the problem of serious damage

1. Increase soil organic matter, improve soil, and return straw to the field through fermenting compost.

2. Break through the extensive scale, strengthen intensive cultivation, increase diversity, avoid simplification, and build a good micro-ecosystem.

解决重茬危害的方法

3. Re-recognize the increased plant and target crops.

4. Improve the rate of goods and quality, improve the micro-ecological environment through the above means, reduce the risk of heavy defects, improve the product rate and improve the quality.

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