Tiantuan management
(1) Adjust the temperature and light to maintain 28 ~ 32℃ during the day and 15 ~ 20℃ at night to promote seedling delay. After the seedlings grow slowly for 5 ~ 7 days, the temperature should be reduced appropriately, and the temperature should be controlled at 23 ~ 25℃ during the day and 12 ~ 15℃ at night. After flowering, it is kept at 25 ~ 30℃ during the day and around 15℃ at night. 1~ The sunshine time is insufficient in February, so the straw cover should be uncovered early and covered late to extend the sunshine time as much as possible. In the early stage of planting, the outdoor temperature is very low, so covering measures should be taken to keep the appropriate temperature in the facility and avoid freezing injury. In case of cloudy day, the grass should be uncovered for a short time at noon to avoid yellowing of leaves due to long-term lack of light.
The outdoor temperature is getting higher and higher in March and April, so it is necessary to ventilate and cool down in time during the day. Do not let the temperature exceed 35℃. When the outside temperature is stable above 15℃ at night, it should also be ventilated at night, and the grass stems should be gradually pulled out and the plastic film removed, and then cultivated in the open field.
(2) Water and fertilizer management and planting water after planting. Because the temperature outside is low, we don't water the vines until we finish pulling them. More intertillage can be used to loosen soil, raise ground temperature and promote root growth. At the vine pulling stage, water and topdressing were started, and 750 kilograms of diammonium phosphate was applied per hectare. When the first melon grows to 10 ~ 15 cm long, water it frequently to keep the soil moist. When the second melon appeared, 750 kilograms of diammonium phosphate and 300 kilograms of potassium sulfate were applied per hectare.
(3) Scaffolding, rattan binding and earthquake prevention, scaffolding or crawling on the ground can be done. In order to increase the yield and enhance the resilience of protected areas, the scaffolding method is generally used. In solar greenhouses, flat plastic wires are generally used as supports, and each 1 bamboo pole can also be used as a fence frame. When the vines grow to 30 cm, tie the vines. Tie vines every 30 cm long. Make the stems and leaves evenly distributed on the shelf.
At the initial stage of growth, the main vines bear fruit and all the lateral vines are removed. In order to harvest tender fruits, after the first melon of the main vine is seated, two side vines are reserved, and each side vine bears a melon before topping. Those who collect old melons can knock off all the lateral vines and let the main vines bear 2 ~ 3 melons.
(4) In artificial pollination and early spring cultivation, the flowering period is very early and it is in the insect-free early spring pollination season. Artificial pollination should be carried out to improve the fruit setting rate. Every morning at 6 ~ 10, pick the male flowers that opened that day, take off the corolla and smear it on the stigma of the female flowers several times.