Planting of muskmelon cultivated in small shed

The colonization period of ① is an important factor to determine early maturity and high yield. If it is planted too early, it is not easy to survive because of the low ground temperature; if it is planted late, it will not achieve the goal of precocious maturity. In the earliest planting period, the local daily average temperature should rise to 10 ℃, and the daily average temperature at 10 cm under high border plastic film should be more than 18 ℃. It is appropriate to choose sunny, warm and windless weather for planting, and immediately after planting, cover the greenhouse film to keep warm.

The ② planting method is high border single row cultivation, and the seedlings are planted slightly south of the border center according to the plant spacing of 35 cm to 40 cm. It is observed that the south of the center of the high border from east to west is the place with the highest ground temperature, so the seedlings should be planted here. When climbing the vine, you can follow the wind in one direction, and the melon seedlings are not easily blown over. The advantage of single-row cultivation is that the seedlings are planted in the middle of the border, and the melon seedlings stay in the arch shed for a long time, which can maximize the warming effect of the small arch shed. Therefore, single-row cultivation was adopted in the cultivation of three-film mulch and three-film plus grass in the small arch shed, and 900 seedlings could be planted per 667 square meters.

③ planting method upright planting method, which is often used. The strong seedlings that have been tempered by low temperature are arranged along the ridge to one side, then the side of the small arch shed is lifted, and holes are drilled and planted on the ridge according to the plant distance. In order to prevent the soil temperature from falling too fast, the seedlings were planted with water in the hole; the planting depth was flat between the top of the soil block and the border surface, filled with wet soil, sealed and fastened the small arch shed while planting. Another method is the Xiangyang nest planting method. After the high border is done, dig out one by one small soil pits (Xiangyang nest) sitting north to the south, about 15 cm in diameter and 10 cm deep on the border according to the plant distance, and cover the plastic film to raise the ground temperature. When planting, first uncover the plastic film, open a hole on the north side of Xiangyang Wo, put the roots of the seedlings to the north and the seedlings to the south, so that the roots are buried in the newly opened holes, and the seedlings are placed flat in the pre-dug Xiangyang nest. after planting a row, cover with plastic film to keep warm and preserve moisture. Finally, in the part of the plastic film facing the seedling, an egg-sized hole is opened for ventilation and ventilation to prevent the seedling from growing, and then set up the arch frame and cover the arch shed. After 3-5 days of planting, the seedlings were drawn out from the holes of the plastic film, so that the aboveground part of the seedlings grew on the plastic film and under the plastic film. This form makes the slow seedling stage of the seedlings under the double-film cover of small greenhouse and plastic film, and the heat preservation effect is good, which can be planted 5-7 days earlier than the ordinary double-film mulching.