The invention discloses a high-yield cultivation method for
grafting large seedlings of watermelon in a large field, which comprises four production steps of
grafting large seedlings, growing seedlings from seedlings, multiplying vines and multiplying fruits, and changing stubble in
continuous cropping. The core of the present invention lies in a major breakthrough in
grafting technology, that is,
rootstock grafting is carried out from the traditional
cotyledon stage to the group tree stage, and the scions are taken from the side vines of the first batch or previous watermelon grafted seedlings, and the seedlings are used to grow seedlings, which saves a lot of money. Quantity. Compared with the traditional watermelon cultivation and
seedling grafting, the present invention has obvious advantages, the grafting is easy to operate, has a
high survival rate, can be carried out directly in the field without facilities, reduces costs, is convenient for management, does not need hardening, can grow seedlings 20 days earlier, and grows quickly. The fruiting ability is strong, and the quality has no effect; usually, the yield per mu in a single season is 4000-6000 kg, and the
continuous cropping in three seasons can reach more than 12000 kg. The invention is particularly suitable for large-area
continuous cropping cultivation of watermelon and large-scale intensive high-quality graft
seedling cultivation. The invention can also be widely applied to melon
vegetable crops, and promotes general improvement of their quality, and the melons are delicious and cheap.