Sub-seedlings are also called inverted seedlings and transplanted seedlings. When the distance between vegetables and seedlings is not enough to meet the needs of seedlings to continue growing, seedlings should be divided in time. There are four techniques that need to be addressed in the process of seedling separation.
Sub-seedling time should be appropriate. Sub-seedling time of common vegetables is controlled between 2 true leaves and 3-4 true leaves. If the seedling age is too large, it will affect the flower bud differentiation, and each time the seedlings are planted, the growth will be delayed for 5-6 days. Seedlings should be cooled 3-5 days before seedlings, control water, exercise seedlings. Dividing the seedlings when they do to dig seedlings, while arranging a small arch shed seedlings cover film, to prevent the high temperature at noon so that seedlings wilt. When seedlings are divided, they should concentrate as much time as possible for labor and time for row seedlings, in order to facilitate seedlings robust growth and management. Split seedlings should be completed in one go. Do not split seedlings several times.
The seedling density should be suitable. Within a certain density range, with the increase of seedling distance, the early production of vegetables will be relatively increased. The seedlings usually have 7-8 cm seedlings when they grow seedlings and 8-9 cm seedlings when they are seedlings. Nutrient seedlings are mostly 10 cm in diameter and filled with earth to improve the moisturizing and heat preservation effects, which is conducive to the cultivation of strong seedlings.
Segregation method should be scientific. The nursery should be watered in the first half of the seedlings in order to facilitate the digging of seedlings and the roots of the seedlings. Dig the seedlings with a small shovel and ask for 1-2 cm away from the seedling roots. After digging, gently remove some of the soil from the root zone and then place the seedling in a pot or basket. Do not injure tender stems when taking seedlings, and carefully protect the cotyledons.
The method of planting seedlings is appropriate. 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. Shallow seedlings after sub-seedlings, generally 1-2 cm of cotyledons unearthed as the standard, should be tightly rooted soil, and timely pouring enough water. The seedlings excavated on the day were planted on the same day. If you cannot finish the morning, plant the seedlings together and cover them with a cover to prevent seedlings from losing water and wilting. In the afternoon, plant them in time.
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