How to manage after grafting?

The management after grafting and transplanting is very important, which is related to the survival rate and quality of seedlings. We should focus on the following management work.

① Uncover the film.

When the ear buds break through the soil, the plastic film should be removed in time to prevent the seedlings from being burned by high temperature. The time of uncovering the film depends on the local climate. Transplanted in Zhejiang seedling area in March, and uncovered the film in 10 ~ 15 days; Transplanted in early April, the membrane will be uncovered in about 7 days. If the temperature continues to exceed 20℃, or in areas with strong solar radiation in Yunnan-Guizhou Plateau, we should strengthen observation and uncover the film in time.

(2) Check the grounding

Too little soil can easily make the ear head exposed to the soil lose water and dry up, which will affect the survival, so it is necessary to spread fine soil in time; When the soil is too thick or the soil surface is crusted, it is difficult for ear buds to stand on the ground, resulting in stuffy buds. After most buds are unearthed, gently lift the exposed soil of unsweetened plants with small bamboo pieces to facilitate germination.

③ Stripping the rootstock bud.

When rootstock and scion of grafted seedlings germinate, rootstock buds will consume some nutrients, which will affect the normal growth of ear buds, so it is necessary to peel rootstock buds in time.

④ Fertilization.

Fertilizer is an essential substance for the growth of mulberry seedlings, so it should be applied in a timely and appropriate manner. When the ear buds bloom to five leaves, the first seedling fertilizer is applied, and the compound fertilizer is per mu 10 ~ 15 kg. At the end of May, urea 10 kg was applied per mu. In mid-July, urea 15 kg was applied per mu. In late August, urea 15 kg was applied per mu. Fertilization methods should be applied between rows, then ridges and furrows should be cleared and covered with soil to reduce fertilizer loss, and attention should be paid to prevent fertilizer from being sprinkled on leaves to avoid burns. Because of the different soil quality and fertility, the amount of fertilization varies greatly.

⑤ Drainage and irrigation

Mulberry seedlings can't grow without water. In the whole process of cultivating mulberry seedlings, we should always observe the water situation in the nursery, irrigate in time when there is drought, and drain immediately after flooding the seedbed at night. When there is too much rain, dredge the drainage ditch in time to avoid water accumulation in the nursery.

⑥ Prevention and control of pests and diseases

The harm of diseased cordyceps will affect the healthy growth of mulberry seedlings. Therefore, in the process of mulberry seedling growth, Qin Ying should observe and strengthen the prevention and control, which can learn from the prevention and control methods of mulberry diseases and insect pests.