Grafting cultivation technology of bitter gourd in sunlight greenhouse

First, prepare the ground

Select sandy loam soil with deep soil layer, good drainage and rich organic matter, and it is not suitable for continuous cropping with melons and vegetables. The hoe is 1.8 to 2 meters wide (baogou), and the hoe is 0.4 to 0.5 meters high. 1000 to 1500 kg of mature pig and cow dung, 28 kg of superphosphate, and 100 kg of plant ash were used as base fertilizer during site preparation.

2. Variety selection, seeding and seedling setting

Autumn planting melon should choose early varieties, good heat resistance, disease resistance, good fruiting habits, such as Guangdong farmers melon, Jiangxin festival and so on. Autumn plants should be seeded after soaking to promote germination. After sowing, cover a small amount of straw and keep the soil moist. Double-row planting, sowing bamboo when the seedlings are about 25 cm high, and then setting the seedlings at a distance of 20 to 25 cm.

Third, fertilizer and water management

Summer and autumn festival melon is short, topdressing should be early. Generally, fertilization is started 5-7 days after emergence. Combined with cultivating soil and fertilizing soil before fertilization, the fertilizer is applied once, and the second application is performed at the first harvest. Each application of peanut bran 30 kg, compound fertilizer 10 kg, and urea 10-15 kg.

After planting the zucchini in autumn, sprinkle water once in the morning and evening, and pay attention to drainage and waterlogging in time after the rain.

Four, bamboo cutting, pruning and introduction

When the melon seedlings are about 25 cm high and tendrils appear, it is necessary to timely insert bamboo to induce vines. Most zucchini racks use herringbone. Zucchini mainly bears the main vine, and all side vines must be removed before flowering.

V. Disease and Insect Control

The main diseases of autumn plant are blight, blight, anthracnose and virus disease. Fusarium wilt can be controlled 600 times with kelp, 400 times with methyltobzine, 1000 times with dexamethasone, 1000 times with daisin, 200-250 times with special wilt and 2000 times with fulvic salt. The epidemic can be controlled 400 times with powders, 800 times with manganese zinc, rufamycin, 600 times with copper powder, and 500 times with carbendazim and Daisen zinc. Anthracnose can be controlled by spraying 400-500 times solution of anthrax fumei wettable powder and 6000-7000 times solution of world high water dispersible granules. In the prevention and treatment of viral diseases, it is necessary to pay attention to pesticide application and insecticide during the peak period of aphids. In the early stage of disease onset, use virus A wettable powder 400 to 600 times to spray and control. The main pest of autumn planting squash is thrips. The worm can be sprayed with 600-800 times liquid of 40% Qixingbao EC, 1000-2000 times liquid of 20% good winter EC, and 10-4000 times of 10% imidacloprid wet powder.

Six, timely harvest

About 10 days after flowering, zucchini is slightly shiny and ready to be harvested.

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