The genus Cucurbita is a member of the genus Cucurbita, an annual herbaceous creeping dicotyledonous plant. Because it contains a variety of nutrients and minerals, it can be used not only as a food processing but also as an important raw material for pharmaceuticals. The squash can be cultivated in the greenhouse, can be matured earlier, improve the quality, and the economic benefit will be higher. The pollution-free cultivation techniques of the squash in greenhouses are introduced as follows for reference by farmers: the selection of varieties is bright and bright, and the flavor is good, suitable for local cultivation. Pumpkin variety.
Soak seed first soak the seeds in water of 50°C for 15 minutes, immerse the seeds in the water at the side of the hole and stir with an alcohol thermometer, keep the water temperature at 50°C for 15 minutes and then reduce the water temperature to 30°C. 1 to 2 hours, and remove the mucus from the surface of the seed, remove and place in the germination vessel after washing, and cover the moisture-absorbing cloth up and down.
Germination The germination vessel containing the soaked seeds is germinated at a constant temperature of 25° C. to 30° C. to maintain the moisture content of the moisture-absorbing cloth and it is turned 3 to 4 times a day, and the buds can emerge after 48 hours.
Prepare nutrition soil before sowing. Prepare strong seedlings. Nutrient soil should have the following conditions: fertile loose, water and fertilizer, no pests and weed seeds. Nutrient soil ratio: 40% of Datian soil, 40% of decomposed farmyard fertilizer, and 20% of peat soil. Mix the three and sieve.
Disinfection of the nutrient soil was carried out at a ratio of 200 ml of formalin and 25 kg of water per 1000 kg of bed soil and mixed until piled up. Then cover with plastic film stuffy soil for 2 to 3 days to kill bacteria. The plastic film is then peeled off after 10 to 15 days so that the drug odor is volatilized and then loaded into the nutritional bowl. Seeding nursery and seedling management sowing seedlings will urge the budded pumpkin seeds into a nutrient bowl pre-packed with nutrient soil, 1 tablet per pot, then cover 1.5 cm thick sterile nutrient soil, and then cover with a plastic film to keep certain The temperature and humidity.
Seedling management after seedling management after sowing, with emphasis on heat preservation and moisturizing to accelerate seedling emergence. When it is found that the soil in the nutritional bowl is dry, it should be poured with warm water of about 25°C in time, not too much, to prevent bad species, when 80% When the above seedlings are unearthed, they shall be prevented from becoming leggy. Seedlings and seedlings management: After the seedlings are released, sufficient light must be ensured. At the same time, the temperature should be controlled between 20°C and 25°C, and the night temperature should be between 15°C and 18°C. The ground temperature is between 20°C and 23°C. In order to increase the root mass and cultivate strong seedlings, the seedlings shall be poured in time and thoroughly soaked in bottom water.
Prevention and treatment of plant diseases and insect pests damping-off, damping-off disease control: a reasonable rotation, a reasonable close planting, the diseased plant was found in time to remove. Combine with biocides for control. Insect pests are generally cockroaches, cockroaches, locusts, etc., and can be controlled with bio-insecticides such as sutural snow.
The first criterion for colonization and colonization is that the soil temperature in the shed should be 10 cm deep in the shed for more than 5 days at 5°C; the second is that the seedlings reach 5 true leaves (about 35 days) and have been trained; Buckled film cultivation can be planted 4 to 5 days in advance.
Planting methods and colonization density Planting methods can be divided into two types: one is defragmentation of mulching membranes, and the method of colonizing a ridge and a ridge can be used, that is, the row spacing is 140 cm, and the spacing is 48 cm; the second is the colonization of the buckling membrane, and the colonization can be used. The method of ridges and ridges is 210 cm spacing and 32 cm spacing. This method is to make full use of the creeping characteristics of the pumpkin to regulate the structure of the population. Pay attention to about 1000 strains per mu.
Field management Pumpkin nutrition should pay attention to maintain temperature and humidity, timely ventilation and cultivator weeding. During fertility growth, fertilize regularly: after cultivating the vines for the first time, topdressing urea when combined with ridge closure. The second time the fruit diameter increased to about 12 cm, topdressing compound fertilizer containing phosphorus and potassium and organic fertilizer. Timely pruning pressure vines: pruning is mainly taken single vine pruning, leaving only one main vine per plant, all side vines removed, vine pressure is in the melon after the two sections of the vine on the leaf pressure. As the greenhouse is restricted by ventilation, artificial pollination is needed. General pollination time in the morning 5 ~ 9 is appropriate.
Pest control Pesticide control Powdery mildew: The disease can occur during the entire growth period. It can be treated with 15% triadimefon 2500 times or 30% DT suspension 500 times. Bacterial keratosis control: Streptomycin can be used for 1 million units of 3 water and 15 kg of foliar spray. Insect pests are locusts and ladybugs, which can be sprayed with 15 grams of water on a 25-gram surface of Sutherine, a biocide.
After harvesting pumpkin flowers, a layer of white waxy substance appeared on the surface of the pumpkin and there were many tiny nodules. This is a sign that the pumpkin is fully mature and should be harvested and marketed in time.
