Greenhouse autumn spinach production is characterized by the early growth period in the greenhouse without shed growth (ie, open field growth), before the frost button on the shed in the greenhouse growth, harvest time for the beginning of November, when the open soil has sold out half a month, Just plug this off season. The cultivation of autumn spinach has considerable economic benefits and simple management methods. The specific practices are briefly described below. First, the selection of varieties used to use thorn species, such as the two city sharp leaves, the variety is soft, delicious, astringent, narrow leaf surface, smooth foliage, petiole slender, strong cold resistance, fast growth, high yield, Strong disease resistance. Second, soil preparation for stalked basal fertilizer If the sorghum planting is a fruit and vegetable category, the general production of fruit and vegetable 667 square meters of high-quality organic fertilizer more than 10,000 kilograms, this scorpion can not apply organic fertilizer, sprinkle some nitrogen and phosphorus fertilizer and potassium compound fertilizer content 15% of "Schaikur". The specific approach is to loosen the land and loosen it again. Spread 400-500 g evenly every 5 square meters. If Shangyu produces vegetables and the soil is infertile, it can generally be 5,000 square meters of high-quality farmyard fertilizer at 667 square meters. Mix the organic fertilizer with the alumina and turn it evenly to make it flat. Third, sowing 1, sowing date in Liaoning Province is generally in early September or mid-September. 2. The sowing amount is generally about 5 square meters and the pure seed is sowed in 50 grams. If the purity of seed is low and there are a lot of impurities, it can be used to remove impurities and pods, and the remaining seeds are sown to ensure that the seedlings are neat and grow strong. 3, sowing method using dry seed sowing method. Sprinkle the seeds evenly on a flat surface, and then use a tweezers to knive the 'knife' from the beginning to the end of the bowl, depth of 1-1.5 cm, so that the seeds or seeds and the compound fertilizer enter into the clay, and then Step on it again and step on it. Fourth, management after sowing 1, the temperature before the next frost, usually in early October or mid-Liaoning region in Liaoning Province, buckle up the greenhouse film, then the temperature is still high during the day, during the day and night at the foot of the film to be opened, followed by With the decrease of the temperature in the nature, the feet are lifted during the day and buckled at night. The temperature will decrease again and the feet will be sealed during the day. If you encounter high temperatures in the future, you can open the door slightly to put the wind. 2, after 4-5 days of water sowing seedlings will be out of seedlings, in the soil surface before the emergence of the dry watering, after the emergence of the surface watering, in short, to ensure the surface of the bauxite is moist, in order to promote the growth of spinach film Water should be poured in the first 2-3 days, and water should not be applied until after harvesting. 3, disease prevention and treatment of autumn green house spinach is easy to get downy mildew, prevention and control is very important to prevent methods: in the buckle before the greenhouse film 2-3 days before watering a spray to prevent downy mildew such as 72% double urea Meng Zinc 600-800 times liquid. If a downy mildew is found after the buckle shed, it must be treated with a smoke agent. For example, if 10% chlorothalonil is used, 300-400 grams per 667 square meters will be used. Once in 7-8 days, it will be controlled 2-3 times in a row. Can effectively inhibit the spread of downy mildew. 5. Harvesting can be harvested when plant height is 20 centimeters at the beginning of November, and harvesting is completed by mid-November. For every 5 square meters, 20-30 kilograms can be harvested. China Agricultural Network Editor
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