Strong seedlings are the basis for early maturing and high yielding of vegetables

As the saying goes: “It's good for six months” and vegetables are “miao one year”. Because most vegetables have a short growing period, a high multiple cropping index, and a special commodity, strong seedlings are the basis for high yield and quality of vegetables.

What conditions should strong seedlings have? 1. Thick stalks. Melon seedlings are shorter and shorter hypocotyls, stems firm; tomato seedlings should be covered with hair. 2. Short festivals. Solanaceous fruit seedlings are denser and shorter, and vegetables and cabbages are invisible. 3. Large and thick leaves, thick veins, dark green leaves. 4. The roots are well-developed, the color is white, and the fibrous roots are numerous and thick. The melon seedling roots could be easily corked and recovered slowly after injury. Before transplanting, they should not exceed 6 leaves, 4 true leaves are appropriate, and the spring seedling age is about 30 days. Such as watermelon seedlings 4 true leaves can generally occur 2-3 lateral roots, the main root length up to 20-30 cm. 5. No pests, no damage, the best cotyledons are also intact. 6. Age should be appropriate. It is difficult to restore the roots of the melon crops after the injury. If the nursery facilities are simple, it is not appropriate to transplant the big seedlings. It is better to use 2-3 true leaf medium and small seedlings or two leafy seedlings (nutrition cups). Seedlings for nutrition trays are preferably transplanted with small seedlings.

Compared with weak seedlings, strong seedlings have four characteristics: 1. Closely organized and high dry matter content. Strong seedlings contain more carbohydrates and nitrogenous substances, providing a sufficient material basis for further growth after planting. 2. There is enough leaf area and large assimilation area. For the transition to reproductive growth in the future, the coordination of vegetative growth and reproductive growth will create favorable conditions. 3. The root regeneration ability is strong. Due to proper seedling age and strong growth potential, new roots can heal and emerge quickly after transplanting. 4. The organizational structure is solid. Because the protective tissues and plants of the strong seedlings are well-developed mechanically, the degree of keratinization of the epidermal cells is high, and the waxy layer is formed on the surface of the cuticle of some vegetables. It helps to protect stems and leaves straight, reduce water evaporation, and prevent bacteria from infecting.

After the strong seedlings were planted, they showed fast growth of live trees, short time for transplanting after transplanting, and strong resistance to stress. Spring seedlings of fruits and vegetables can also fight for the season, appropriate early planting. In addition, because the flower buds of strong seedlings are well-differentiated and the number of flowers is large, the flowering is early after the planting, the results are numerous, and the fruit enlarges quickly. Therefore, strong seedlings are the material basis for obtaining early maturing and high yielding vegetables.

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