First, the variety selection. Greenhouse loofah should use varieties with strong plant growth, cold tolerance and strong adaptability, such as cylindrical loofah.
Second, land preparation and fertilization. Before planting, combine ploughing and ploughing, apply more than 5,000 kilograms of high-quality glutinous fertilizer, and level the sputum, and then ditch along the planting line, and apply 50 kg of calcium phosphate , 25 kg of potassium sulphate per mu , or 100 kg of decomposed cake fertilizer ; Rib, ready to plant.
Third, planting time and cultivation methods. The loofah can be broadcast live in mid- October , and it can also be transplanted. The cultivation method is generally carried out by ridge size, with a large row spacing of 70 cm, a small row spacing of 60 cm, a plant spacing of 30 cm, and 3,400 plants per mu .
Fourth, sowing, seedlings. Soaking with a heated 60 ℃ 10 minutes, and cooled after soaking for 24 hours, taken out with good mixing cloth is placed 28 - - 50 before sowing with 32 ℃ for germination, rinsed with water once a day, until most of the seeds can be planted when exposed buds. First pouring sowing foot of water, 1.5 cm soil after sowing, the live broadcast field can opener back on both sides of the ridge, 3 - 4 days to unearthed seedlings. When the seedlings to grow 1-- 2 true leaves, thinning can be broadcast field, field planting can be transplanted, leaving only one seedling per hole.
5. Management between sheds.
　　 1. Adjust the temperature and lighting. Loofah throughout the growing season are required to have a higher temperature, the optimal growth temperature is 20 - 24 ℃, fruit development, the optimum temperature was 24 - 28 ℃; about 15 ℃ slow growth, growth inhibition lower than 10 ℃. Management, the greenhouse temperature was maintained at day 25 - 30 ℃, night maintained at about 18 ℃. Before the gourd is vine, the grass can be used to properly control the sunshine time to promote stem and leaf growth and female flower differentiation. In the flowering period, it is necessary to open the grasshoppers in a timely manner and make full use of the sunlight to raise the temperature.
　　 2 , timely watering and topdressing. Loofah seedling water is not required, the appropriate visual moisture pouring small water 1--2 times, when the vine grows to about 5 cm, with earth again, 30 kg per acre topdressing potassium dihydrogen phosphate, a water flood. After flowering, usually 7--8 days pouring water once, while 5 kg of urea per acre topdressing.
　　 3 , tying the vines, plant adjustment. Loofah vine up 7--8 m when vine length to 25 cm Demand scaffolding. In order to reduce the space occupied by the poles and the sunshade, it is generally directly attached to the greenhouse bracket by wire or nylon rope, so that it forms a single-row vertical frame, the top does not cross, and the vines are vertically oriented according to the original planting row spacing and density. Man After shelves, each 4--5 leaves tied once, can be "S" shaped tie method.
　　 4 , preserved flowers and fruits. Painting with 2.4 - 4D can reduce the flower drop and significantly increase the fruit setting rate. When the temperature is high, the concentration is 20 × 10 - 6 , and when it is low, it is 30 × 10 - 6 . It can be applied to the head of the female flower and the base of the corolla with a brush sputum, or the flower can be directly dipped in the liquid. The smear time should be around 8 am.
　　 5 , pest control. The main diseases of loofah are anthracnose, epidemic disease, gray mold, and can be controlled by pesticides such as carbendazim, chlorothalonil and polymyxin. Insect pests mainly include melon and whitefly, and can be controlled by fish vine essence and broom spirit.
Â
Â
Outdoor Lighting,Outdoor Led Shoebox Light,Outdoor Small Led Area Light,Outdoor Led Wall Light
Fuonce-Lighting , https://www.szfuoncelightings.com