Sub-seedlings of vegetables are effective ways to prevent seedlings from sprouting, to increase the nutrition and illumination area of ​​seedlings, and to promote the growth of seedlings. However, split seedlings will inevitably cause different degrees of root-cutting, reduce root function, and inhibit the normal growth of seedlings. To ensure that the seedlings restore the root absorption function and the healthy growth of seedlings as soon as possible, the key technical points are as follows:
I. Timely seedlings
General cold bed nursery such as pepper, eggplant seedlings need about 40 to 60 days. Split seedlings start from 2 true leaves, and seedlings should be controlled within 3 to 4 true leaves. Because the seedlings are relatively small, the seedling rate is high and the seedling age is too large, affecting flower bud differentiation, and each time the seedlings are divided, they are delayed for 5 to 6 days. 3 to 5 days before seedling separation, the seedbed should be cooled, ventilation should be increased, water must be controlled, and seedlings must be trained. Dividing the seedlings when they do edge digging seedlings, while arranging a small arch shed seedlings cover film, to prevent noon high temperature seedlings wilting. When seedlings are divided, they are required to concentrate labor and time for row seedlings in order to facilitate the robust growth and management of seedlings. Separate seedlings should be taken once.
Second, the density is suitable
There is a close relationship between seedling density and yield. Within a certain range, with the increase in the distance from the seedlings, the yield in the previous period will be relatively increased, and the benefits will also increase substantially. The general pepper seedlings are 7 to 8 cm apart and eggplants are 8 to 9 cm. If the seedbed is not tense, the seedling distance can reach 8~10 cm; the diameter of the nutrition seedling nursery is 8~10 cm, and the earth is filled with earthworms to improve the moisturizing and heat preservation effect, which is beneficial for cultivating strong seedlings and improving the yield and benefit.
Third, seedling method
The seedlings should be watered in the first half of the seedlings, which is beneficial to dig seedlings and seedlings. Use shovels or shovels to dig seedlings. Digging seedlings requires 1 to 2 cm from the seedling root. After excavating the seedlings, gently excavate most of the soil from the root and then place it in a basin or basket for drainage. Do not injure the seedlings and protect the cotyledons carefully.
Immediately after the seedlings are excavated, the seedlings should be rowed, and in particular, the roots should be protected from the sun or be blown away by the wind. When separating the seedlings, it is best to separate the seedlings from the seedlings, remove diseased seedlings, insect-injured seedlings, and headless seedlings.
Fourth, row seedlings
The seedlings should be in shallow rows, and the cotyledons usually have 1 to 2 cm unearthed as the standard. Row seedlings should be tightly rooted and the roots should be poured in time. The seedlings excavated on the day were lined up. If you can't finish in the morning, you can concentrate on soil and cover it with a cover to prevent dehydration and wilting, and finish it in the afternoon.
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