Shed preparation before cucumber colonization in winter and spring
In greenhouses, cucumbers are harvested in winter and spring because of their high yields and qualified prices. They are now at the grafting stage and must undergo certain preparatory work before planting.
(1) Cover the greenhouse film and the greenhouse disinfection. Cover the greenhouse film one month before planting, and disinfect the greenhouse. Disinfect 200 ml of dichlorvos, add 1.5-2 kg of sulfur, mix with sawdust, and ignite. - 2 days, can effectively kill the shed eggs. For the more severe root-knot nematode sheds, it is also possible to apply 80 kg of lime nitrogen to Mushi and mix thoroughly.
(2) Site Preparation and Base Fertilizer: Basal fertilizer is dominated by organic fertilizer, and 10,000 kilograms of organic manure is fully decomposed by Mushi, and deep-turned by 40 cm. It is also possible to apply fermented rot crushed grass, wheat straw, rice husks and other organic materials year after year. The best measure is the application of straw bioreactor technology, which can effectively increase the ground temperature, increase soil organic matter, and improve the soil environment. It can also reduce the occurrence of diseases and improve product quality, and the effect of increasing production is outstanding.
(3) Making bed and cover film: Cucumber in greenhouses in winter should be raised from a high bed and drip irrigation or under-membrane irrigation should be adopted. The bed width is 1.2 meters and height is about 15 centimeters. Can also be colonized after the first colonization.
(4) Determination of the planting period: Winter and spring cucumbers are generally planted from late November to early December.
(5) Planting methods and density: About 3500 plants per acre were cultivated. Planting seedlings must be strictly screened, remove diseased seedlings, weak seedlings, and unqualified seedlings that are grafted. Open the planting hole at a spacing of 28-30 cm, plant the seedling into the hole, pour the water, and then cover the film.
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