Cultivation and management of summer vegetables in greenhouse after transplanting

After transplanting the summer vegetables, mostly sunny days, the transplanted seedlings returned quickly and the plants grew well. The large temperature difference between day and night in the recent past, if farmers do not pay attention to the management of temperature and humidity, can easily cause leggy. Farmers are managed according to weather conditions. First, control temperature and humidity. After the planting, the greenhouse film shall be sealed first. Generally, the temperature shall be maintained at 25-32°C during the day and 20-25°C at night. The sunlight shall be strong, and the temperature in the shed shall exceed 30°C. The shaded net and grass grazing may be used to reduce the temperature to promote seedling regeneration. After the emergence of the seedlings, the temperature is appropriately reduced, generally 20-25°C during the day and 15-20°C at night. The optimum temperature for the growth of melons is 20-30°C. If the temperature exceeds 35°C, growth and development will be hindered. Therefore, when the temperature of Solanum vegetable sheds is greater than 30°C and the melons are greater than 32°C, ventilation should be performed. Ventilation should be from small to large. When the nighttime temperature is stable at more than 17°C, the skirt film can be removed and the ceiling can be kept. Membrane rain. Temperature and humidity can be controlled by the size of the ventilation and the cover film sooner or later. In rainy weather, it is also necessary to remove the inner membrane of the large and medium shed to allow the plants to see the scattered light to prevent the photosynthesis of the plants from weakening, resulting in malnutrition of the plants. Second, plant adjustments. About 30 cm in height, the vine spreads the vines and hangs them in time. Eggplants and peppers only sorted away the lateral branches below the root eggplant (pepper), but Eggplant No. 1 and No. 3 eggplants had strong growth potential. According to practical experience, most of the leaves under the fruit can be removed. Tomato pruning varies according to different planting densities. Generally, the planting density is generally single-lined and pruned, and the cultivation of dilute double-row pruning is carried out. The replacement pruning method can increase the total yield without reducing the density. Long melon 5-6 when the true leaf topping, leaving 1-2 side vine instead of the main vine, Sun Man stay 1-2 fruit topping. Cucumbers and pumpkins are dominated by single vine pruning. In addition, the old leaves, diseased leaves, and diseased fruits of the plants should be promptly removed for centralized treatment. Third, the application of hormones, preserved fruit. Solanaceous vegetables can cause flowering and fruit drop under the conditions of too high and low temperatures, and plant hormones can be used to preserve and protect fruits. Eggplant, tomato with red eggplant 1 ml water 500 grams soaked or add 250 grams of flower; can also use 2.5% anti-arsenic 500-2500 times liquid to spend or decorate. Pumpkin, zucchini, and cucumber are sprayed with pistachio stigma 100 times with Paulo spirit and artificial pollination with pollen. The above hormones should be marked with pigment powder to avoid repeated use and produce malformed fruit. Hormone use concentration is adjusted according to changes in temperature, concentration is low when temperature is low, and concentration is thin when temperature is high. Fourth, fertilizer and water management. Fruits and vegetables are mainly controlled by the results in the early period, and the result is that the rear view is growing up and the fertilizer is generally harvested 2-3 times. Fertilizer can acupuncture fertilizer, drip application, furrow application or foliar spray; fertilizer can be used as compound fertilizer, decomposed human animal dung, potassium dihydrogen phosphate, and nutrients. In the early fruit period, Mushi granules of 45-60?/mu will be applied. The depth of the application shall be 5 cm or more and maintain a certain humidity. Once a month, the crop will be applied once or twice a season. The moisture is combined with topdressing according to the temperature conditions and the degree of soil moisture. When the temperature is high, the soil should be watered in a timely manner or watered in the ditch. Fifth, pest control. Diseases mainly include melon and fruit gray mold, sclerotinia, anthrax; melons downy mildew, powdery mildew; tomato late blight; eggplant Verticillium wilt. Botrytis cinerea, sclerotinia with prohexine, nongrillant, sucrose spray or chlorothalonil fast smoke control; anthrax with 25% prochloraz, 75% chlorothalonil spray control; melons Downy mildew and tomato late blight can be controlled by fluorinated manganese zinc, ank, gram, and anti-virus scorpion spray; eggplant Verticillium dahliae can be sterilized with carbendazim and green hen on the 2nd. Even defense 2-3 times. Insect pests mainly include locusts, hummocks, and tea yellow pods. Aphids and thrips are treated with imidacloprid; thrips can be controlled with a good winter or green blessing; tea astragalus is treated with clomazone or green.

Canned Food

Canned Food,Canned Fish,Canned Fruits

Reiyo Foods Co., Ltd. , http://www.ytfrozenfood.com