The stem cavity of older rootstock seedlings is larger, so it should be split to one side and the middle as far as possible, which is easy to split into the cavity and reduces the grafting effect. (2) The stem diameters of muskmelon seedlings and rootstock seedlings should be reasonably matched. The stem diameter of melon seedlings should be similar to or slightly thinner than that of rootstock seedlings. The stem of melon seedlings is too thin and the joint area with rootstock is too small, which is not conducive to cultivating strong seedlings. (3) Rootstock seedlings should be grafted with soil to keep the root system intact and have strong absorption capacity.
(4) Reduce the water loss of melon seedlings, keep scions with high water content, shorten the interval from seedling emergence to transplanting to seedbed as much as possible, and take appropriate moisturizing measures for melon seedlings. (5) In order to improve the grafting quality of the scion, the stem segment of the scion seedling should be completely inserted into the incision of the rootstock, not left outside the incision, and the stem segment of the scion seedling should be inserted into the bottom of the incision of the rootstock. (6) It is necessary to prevent the grafted seedlings from lodging and splitting, so that the weight of the upper end of the stem of the rootstock seedlings is greatly increased and the grafted seedlings are prone to lodging. After grafting, when the grafted seedlings are put into the seedbed, the seedling spacing should be shortened appropriately, so that adjacent seedlings can support each other and reduce lodging. For the fallen seedlings, short sticks should be inserted next to the seedlings or supported by stones and clods.