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.
Soaking
First, soak the selected seeds in water at 50°C for 15 minutes. Stir down the water 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. Soak 1 For 2 hours, remove the mucus from the surface of the seed, remove and put it in the germination vessel, and cover the absorbent cloth.
Germination
The germination vessel containing the soaked seeds is germinated at a constant temperature of 25° C. to 30° C. to maintain the humidity of the moisture-absorbing cloth, and it is turned 3 to 4 times a day, and budding can be performed after 48 hours.
Prepare before broadcast
The nutritious soil is formulated to cultivate strong seedlings. The nutrient soil should have the following conditions: loose and 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 rate of mixing 200 ml of formalin and 25 kg of water per 1000 kg of bed soil, and mixing them 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.
Seedling nursery and seedling management
Sowing seedlings will urge the budded pumpkin seeds into nutrient bowls pre-filled with nutrient soil, one for each pot, then cover 1.5 cm thick sterile nutrient soil, and then cover with a plastic film to maintain a certain 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.
Seedling Pest Control
Bacterial damping-off and blight prevention and control measures: rational rotation, reasonable close planting, and timely removal of diseased plants. Combine with biocides for control. Insect pests are generally cockroaches, cockroaches, locusts, etc. They can be controlled by bio-insecticides, such as Sutherland Snow.
Colonization
One of the criteria for colonization is when the soil temperature in the shed is 10 centimeters deep and stable at 8 degrees Celsius for 5 consecutive days; the second is that the seedlings reach 5 true leaves (about 35 days) and have been tempered; the third is the buckle. 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 buckled pellicles and 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 vegetative growth period should pay attention to maintain temperature and humidity, timely ventilation and 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 throughout the reproductive period, and can be controlled with 15% triadimefon 2500-fold wettable powder or 30% DT-rubber suspension 500-fold. 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 Sutherland, a biocide.
Harvesting
After the squash blossom, there is a layer of white waxy substance on the surface of the pumpkin and there are many tiny knobs. This is the symbol of full ripeness of the pumpkin and should be harvested and marketed in time.
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