At present, the peppers in Zibo area have begun to colonize. However, due to the fact that some farmers have not cleaned out the greenhouses and the seedlings have grown very quickly, in order to avoid seedlings, they adopted the method of transplanting seedlings, especially when many seedlings have grown to 6-8 leaves. In this regard, the reporter thinks this approach is undesirable.
First of all, the roots were transplanted and damaged, and the seedling stage was prolonged, which could easily lead to the aging of the root system and reduced the regeneration ability, which affected the growth of the seedlings after planting. The seedling stage is the most delicate and fragile period in the root system. Although the nursery soil is soft and cut off during the transplanting process, the root system will still be greatly damaged. Transplanting seedlings prolonged the seedling age, which could easily lead to the aging of the root system, reduced regeneration capacity, slow growth after planting, and weak growth.
Secondly, when the seedlings are transplanted, the roots and stems are likely to form wounds, affecting the disease resistance of the seedlings. In recent years, root diseases have become the most important disease that restricts vegetable production. When the vegetables are transplanted, root injury is inevitable, and the formed wounds become a perfect place for the infection of pathogens, which easily leads to disease. At the same time, the fine hair on the seedlings of pepper seedlings plays an important role in reducing pathogen transmission and infection. The seedlings inevitably injure the fine hairs on the stems, which results in the reduction of plant disease resistance and possibly the increase of disease.
In addition, flower bud differentiation is greatly affected. The flower bud differentiation of most vegetables starts from 2-4 true leaf stages. If roots and diseases are encountered in the course of the disease, it will affect the absorption of water, nutrients, and photosynthesis of the leaves, resulting in insufficient plant growth. The nutrition, delayed flower bud differentiation, poor differentiation, early post-planting deformed fruit, low yield.
Colonization of young plants is more beneficial to the growth and development of vegetables. The vegetable farmer must calculate the time before planting or setting seedlings. It must not be too early to prevent the seedlings from being too large before planting, and they have to take control of the seedlings and affect the growth and development of the seedlings after planting. If the seedlings are really large and cannot be colonized at one time, the seedlings in the plug can be transplanted into the nutrient bowl first, and the growth space and the nutrition range can be controlled to help them grow and prolong the seedling age.
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