Spinach cultivation technology: how to manage winter spinach?

How to manage overwintering spinach? Please introduce and guide the management of overwintering spinach can refer to the following list: 1. Spinach overwintering management: it is the overwintering period from the cessation of spinach growth to the return of green in the following spring. In order to prevent cold and drought injury, frozen water can be poured once before freezing; if there is insufficient fertilization, urine water can be mixed. After freezing, it can be covered with horse manure or ring fertilizer to protect the seedlings from overwintering. Before turning green, choose sunny and warm weather, and sprinkle fresh urine after the frost thaws, 1000kg to 2000kg per mu, ending at 3pm to 4pm. 2. Management of exuberant growth period of overwintering spinach: in early March of the following year, spinach began to turn green and grow. Therefore, when the temperature is still low, if the soil moisture is good, it can not be watered temporarily, and it is necessary to paddle and hoe to preserve soil moisture; if the soil moisture is not good and the temperature picks up quickly, water can be watered once, and the amount of water should be small rather than large. However, saline-alkali soil can be properly watered and pressed with salt. Wind barrier border and sandy loam, the temperature rises quickly, so it should be irrigated early. After spinach began to grow vigorously, the demand for fertilizer and water surged. In this period, the soil should be kept moist and should not be drought. we should pay close attention to topdressing and watering, promote vegetative growth and delay the bolting period. Generally speaking, urea is 15-20 kilograms per mu. Watering after fertilization, sufficient fertilizer and water, spinach grows fast and can be harvested in 10-15 days. The cultivation methods of wind barrier and plane plastic film mulching (plastic film mulching for 7 days and 10 days) in early spring can achieve the goal of early listing and high yield. 3. Pest control of overwintering spinach: the main diseases and insect pests of overwintering spinach are downy mildew, anthrax, virus disease and aphids. Downy mildew and anthracnose can be sprayed with 75% chlorothalonil 600 times, 25% metalaxyl 700 times 800 times or 40% aluminum ethyl phosphate wettable powder 200 times 300 times at the initial stage of the disease. In addition to crop rotation, virus diseases should also be controlled in time, such as aphids and other virus vectors. Aphids can be controlled with imidacloprid and other agents. Click to get more spinach planting techniques click to get more vegetable planting techniques