Combining the main vines of two or more squashes together to create a new master vine, with multiple root systems supplying nutrients, the yield of squash can be doubled and the quality can be greatly increased. The technical points are as follows: Digging a hole at the digging and planting 10 days before and after planting, the size and depth of the hole is 1 to 2 times that of conventional cultivation. In the cave, apply more organic fertilizer and increase the application of phosphorus and potassium fertilizer. After the mixture of fertilizer and soil is uniform, cover the soil and fill the pits to make it slightly higher than the ground. Pumpkin seedlings were planted with 2 to 4 plants per hole and the plant spacing was 25 cm. Cut and pick the main seedlings of the pumpkin seedlings to 60 cm long. Cut the tip of the main vines of two adjacent melon seedlings obliquely with a knife. The section of the mouth cut should be relatively consistent and consistent. The shape and size should be basically the same. Then the two sections should be joined together and tightened. Lateral and lateral shoots on the lower part of the interface. After 2 to 3 days, the interface will heal and grow new. When many plants are connected in parallel, they should be connected first, and when the new lord grows to 50-60 centimeters in length, it is connected with the adjacent third main vine by the same method. Or connect two neighboring new vines that have been connected together to form four tandems. Remove long-grassed vinegar and grow in the interface, only long vines do not bloom, must be removed in time. The difference between the imaginative vine and the new lord is that the culprit is located under the interface, and the long speed is extremely fast. It can grow more than 10 centimeters per day. The new main vine (fruit vine) is born on the back of the interface, and the growth speed is slow, but it is stout. . Precautions 1 When cutting and connecting the main vines, the buds on the back of the cut shall be protected. When tying the interface, the buds shall be exposed on the outside so that the buds will form a new main vine (fruit vine) as soon as possible; at the same time, the interface must be protected. The leaves below the site are used for photosynthesis so that the interface will heal as quickly as possible and the new main vine will grow rapidly. 2 Parallel operation should be carried out on cloudy or sunny afternoons after 4:00 pm. After sunny days, take care to prevent sun exposure; within 2 days after connecting, avoid rainwater flushing the interface to prevent the strapping from loosening or falling off. (3) When there are 2 or 3 new vines, only one sturdy main vine must be kept. The rest should be removed in time. During the growth process after 4 merging, more phosphorus and potassium fertilizers should be used, and less nitrogen fertilizer should be applied. For conservation cultivation, carbon dioxide gas fertilizer is applied during flowering and fruiting period to increase the yield.