The zucchini can safely pass winter and grow in the winter shed, and has a long harvest period and high efficiency. It increases the supply of vegetables in the winter and spring seasons. I. Variety selection Choose early-maturing, short vine varieties. Second, nurture strong seedlings The main purpose of wintering cultivation of zucchini is to supply the Chinese New Year market. The suitable sowing date should be mid-to-late October. The seedling age should be about 30 days. In the middle and late February, it will enter the peak of melon harvesting, and it will last until mid-late May. In order to increase the cold resistance of plant roots, black-skin squash can be used as rootstock for grafting and root replacement. Grafting age is about 40 days. After the grafted seedlings survived or the two cotyledons of the self-rooted seedlings were flattened, the temperature was controlled at 24°C-28°C during the day, 12°C-14°C at night, and the ground temperature was above 14°C. One week prior to planting, the temperature should be properly reduced, and the temperature at night should be maintained at 10°C-12°C to enhance ventilation. Before the colonization, the seedlings were sprayed one time to control aphids, whitefly and fungal diseases. Third, re-base fertilizer Due to the long growing period of overwintering cultivation, it is necessary to reapply basal fertilizer, 5000 kg of high quality fertilizer per acre, 1000 kg of chicken manure, 50 kg of superphosphate or 20 kg of diammonium phosphate, 30 kg of potassium sulfate, organic fertilizer can be applied, fertilizer , fine fertilizer concentrated channel application. Fourth, timely planting At the time of colonization, the unity of seedling age and proper colonization was achieved. In mid-November, a sunny morning was planted. 10-15 days before the colonization should be tarred. V. Planting methods There are two types of colonization methods: large- and small-row rows, and cultivation in large and small rows, with 2000-2500 plants per acre. When planting zucchini, first water along the small ditch, planting seedlings according to the planting distance, water from the outside of the ditch after the water infiltration piles into small ridges, smashing the back cover mulch, covering the size of the mulching film or small row covering, large Line grass. Six, slow seedling management After planting, cover the grass overnight and keep it at 25°C-30°C during the day, 16°C-20°C at night, and 16°C above ground temperature. After easing the seedlings, keep 24°C-28°C during the day and 11°C-13°C during the night. The grass cover will cover the late cover as early as possible to prolong the visible light time. After easing the seedlings, cultivators are also required to promote root development. Seven, the initial management of melon After the first melon was seated and before the winter arrived, it was filled with water under a film on a sunny day and poured. From the first female flower, when each female flower is open, artificial pollination is performed at 6-8 am on that day, or 20-40 ppm of 2,4-D silk flower, and 2,4-D should be marked with ink. Steel Road Barrier ,Buried-Free Tire Killer,Hydraulic Tyre Killer,Spikes Barrier Tyre Killer Shenzhen Unisec Technology Co.,ltd , https://www.uniqscansecurity.com