High-yield cultivation techniques for southern zucchini

I. Variety selection

Choose varieties with strong disease resistance, storage and transportation resistance, dense meat quality, excellent quality, and high yield, such as Jiangdi 486, Jiangxin 4, Guanxing 2, and Jiangxin Zucchini.

Second, sowing seedlings

Nutrient cups are used for seedling cultivation. The nutrient soil is selected from soils with a lot of organic matter, rich nutrients, and good aeration. For every 1000 kg of nutrient soil, spray 25-30 grams of 50% carbendazim wettable powder in water for spraying, mix well after spraying, cover the film, and remove the film after 2-3 days. The medicine gas can be filled into the nutrition cup after it is dispersed. . When filling the cup, fill it while filling, so that the nutrient soil in the cup is loosened tightly, and then drained neatly and tightly on the flat seedlings. At the same time, fill the gap between the cups with the nutrient soil, and pay attention to the soil on the side.

Zucchini seeds generally germinate unevenly, soaking seeds should be soaked to promote germination. Treatment method: Put the seeds in water at 52-55 ° C and keep stirring. After 15 minutes, soak the seeds in warm water at about 30 ° C for 3-4 hours. Germination under conditions. The seeds are washed once a day during the germination period, and the buds can be successively produced after 2-3 days. When the buds grow to 0.5-1.0 cm, they can be sown. Foot water is poured into the nutrition cup before sowing, and 2-3 germinated seeds are planted in each cup, covered with 1 cm thick nutrient soil, and then covered with a small amount of straw, and then watered. Can be transplanted at 20-25 days.

Third, timely colonization

After the late rice is harvested, it is plowed and sun-dried. After the harrow is flat and broken, the hoe is 30 cm high and 160 cm wide (including the trench). Combined with the preparation of sufficient base fertilizer, generally 30,000 kg of rotten cooked farmhouse fertilizer, 750 kg of rotten cooked cake fertilizer, and 750 kg of superphosphate were applied per hectare. About 2,000 plants are planted per acre, and each row is double-rowed, and the plant spacing is 35-40 cm.

Field management

The zucchini plant grows to 5-7 knots, then use a small bamboo pole to set up a "herringbone", and lead to the shelves. Remove all side vines in time before the results to ensure the main vines. Then select 1-2 side vines above the middle of the plant.

After three true leaf periods, 10% of the farm's organic liquid fertilizer is applied every 7-10 days, and the fertilizer and water should not be sticky when the fertilizer is applied. Before building the scaffold, fertilize the soil with fertilization, applying 600 kg of cake fertilizer per hectare, 375 kg of ternary compound fertilizer, and 150 kg of urea. Two times of heavy fertilizer was applied before and after the first fruit harvest, and the amount of fertilizer was the same as that of the * time. After that, topdress the fertilizer once every 6-8 days, and apply 225 kg of ternary compound fertilizer, 75 kg of urea, and 150 kg of potassium fertilizer per hectare. The method of topdressing is to mix the fertilizers evenly and then apply them between the plants and then cover the soil.

Zucchini likes wetness and fear of waterlogging, and less water is needed before pumping in winter and spring.

Five, pest control

The main diseases of zucchini include blight and anthracnose. The epidemic disease is controlled by a 500-fold solution of 58% Rhizopus manganese-zinc wettable powder, or a 500-fold solution of 64% antiseptic alum wettable powder, or a 600-fold solution of 90% ethylphosphate aluminum wettable powder; Zinc wettable powder 800-1000 times liquid, or 70% methyl tobzine wettable powder 800 times liquid for prevention and control. Insect pests are mainly thrips, aphids, tobacco beetles, and Liriomyza sativae. It can be controlled by 1500 times liquid of 5% thistle aphid wettable powder, or 3000 times liquid of 10% imidacloprid wettable powder.

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