Vegetables should not be blindly planted "big seedlings"
Many vegetable farmers are accustomed to choosing older or big seedlings when planting vegetables. This is actually a misunderstanding.
Most vegetable growers think that the higher the price of vegetables, the higher the market price of the vegetables. Therefore, many vegetable farmers prepared the seedlings early in order to grab the time, but they had to wait until the seedlings were very old (8 to 10 pieces of real leaves) to replant. Although the establishment of large seedlings can allow the first fruit to be marketed in the morning, it is not easy to cultivate strong trees and the yield in the later period is low, which has more harm than good. that is because:
First, colonization of large seedlings is not conducive to flower bud differentiation in late-middle vegetables. The flower bud differentiation of most vegetables started from 2 to 3 true leaves. By the time of delivery (6 to 7 true leaves), the flower bud differentiation has reached the “starry sky†stage, which determines the yield and quality of vegetables. The key period. If the plants are not planted at this stage, the plants are 25 to 30 cm high. The seedlings on the seedlings are more crowded and shady each other, affecting the photosynthesis, and can easily cause leggy seedlings, which will inevitably affect the flower bud differentiation in the middle and later stages, resulting in late middle and late vegetable yields. Greatly reduced.
The second is that large seedlings are slow to plant seedlings and the roots are seriously ill. Large seedling colonization, plant photosynthesis decreased, the production of photosynthetic products is less, the root system is not adequate nutrition and growth is too slow. Roots grow too slowly and absorb less water and nutrients from the soil, which is not enough to supply the growth and development needs of shoots, leaves, and flowers on the shoots, thus slowing down the seedlings for a long time.
The third is that large seedlings are not in place due to vegetative growth, which results in weak root growth, resulting in weak disease resistance of plants. Some soil-borne diseases will cause invasion and cause vegetables to die. The 4 to 6 leaves of the seedlings after planting, can quickly adapt to the soil environment and rooting, which is conducive to slow seedlings, and there is enough space for nutrient growth, can make plants robust.
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