Greenhouse Vegetable Grafting Nursery Notes

Grafting and seedling cultivation is a commonly used method for protecting vegetables in recent years. It can improve the disease resistance of plants and increase the yield. The following points should be noted during the operation.

There are great differences in drought tolerance, cold resistance, and disease resistance among different rootstocks of suitable rootstocks, and the corresponding rootstocks can be selected according to the purpose and method of cultivation. Such as cucumber grafted seedlings in winter, can use low temperature, good stretch of Yunnan black seed pumpkin as rootstock.

Select the appropriate method of vegetable grafting methods are docking, splicing, docking and so on. Plugging and splicing are performed before and after breaking the seedlings and are mainly applied to melon vegetables. Among them, the scion seedlings are small and the hypocotyls are mostly used for plugging; the scion seedlings, the thickness of the hypocotyls and the rootstock are similar to each other by the method of connection. The splicing method is used when the rootstock is large or even mature, such as the eggplant and other vegetables. In the production, the grafting method should be selected flexibly according to the level of mastery they have, the type of vegetables, the grafting period, the ease of management after grafting, and the operation conditions at the time of colonization.

Determining the timing of sowing for rootstock and scion should be based on the growth characteristics of both and the grafting method to be used. When cucumber and black-skinned squash are grafted by grafting, black-skinned squash should be sowed 5 to 7 days earlier than cucumber; when grafting by grafting, cucumber should be sown 5 to 6 days earlier than black-skinned squash.

After grafting, management of the grafted bed needs to maintain the relative humidity of the air above 90%. Therefore, the seedbed should be poured with bottom water and covered with a small shed. To prevent overheating in the shed, it should be shaved for 3-7 days. When the young leaves of the seedlings are not wilting or new leaves are growing out, the seedbed can be moderately ventilated and cooled, and the light can be gradually increased. After 8 days of grafting, the shelter can be completely removed and the normal management can be performed.

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