Introduction of vines on the shelf when the bitter gourd is 40 cm high, the nylon rope for traction, tied vines to the middle of the planting beds above the 2-meter-high wire, so that the bitter gourd to rely on the above results. A few days later, when the melon vines climbed to the shelf, the main vines of each row were unified in one direction traction. When leading the vines on the shelf so that the main vine straight up, at the same time should pay attention to let the leaves evenly distributed, make full use of the growing space.

Rectification When the main vine climbs to the shelf, keep 2~3 strong lateral vines and the main vine together with the lateral around the shelf, in order to ensure good ventilation and light conditions and reduce nutrient consumption, below the shelf of the other lateral vines and tendrils can be removed. Newly grown lateral vines on the shelf, melon retained, no melon, weak vines, pests and disease vines removed in a timely manner. When two female flowers appear on a lateral vine, you can remove one of the female flowers, retain the good quality of the female flowers, and so on after the first melon, can be appropriate to remove. Each plant to retain 5 to 6 lateral vines, the main and lateral vines can be allowed to grow, do not have to pick the center, if the growth space is narrow, can be in the vines after sitting steady melon picking.

With the prolongation of time, more and more melons, nutrient growth is weakened, reproductive growth is strengthened, in the middle and late can no longer straighten, but must be timely removal of the lower part of the plant's old leaves, yellow leaves, diseased leaves, as well as hanging in the lower part of the wire without the melon branches and vines, to prevent the consumption of nutrients. Of course, the upper part of no melon, no female flowers, diseased vines should also be removed in a timely manner, and pests and diseases should also be removed in a timely manner.