Lettuce is managed with peace of mind and less investment. It costs less than 1,000 bucks for an acre of land and a 2-3 jin for a lettuce. It can have an income of 10,000 yuan per mu.
One is to grasp the time of planting. Lettuce is generally cultivated around the autumn of the first year and planted at the beginning of winter. The stem of lettuce grows and expands as the plant grows. Premature stems have too much water in the stem, which can easily cause cell water to freeze and freeze. The colonization was too late and the nutrients absorbed in the early stage could not supply the need for winter growth.
The second is to pay attention to the number and method of watering. Lettuce is planted from the first year to the harvest of the second year. Usually only four times of water is enough. The first water is poured after planting, and the second water is mainly frozen water. After the frozen water is poured, the dumplings are covered with waste grass rakes, which mainly plays a role in keeping warm and ensures that the lettuce can smoothly pass winter. The second two days of water time is about 10 days before the harvest in the second year when the spring temperature rises up to support the arch.
The third is to pay attention to top dressing. Uncle Yang particularly emphasized that water should never be drawn when watering the next three times, mainly to provide nutrition for the growth of lettuce. Each time when watering with the use of high-potassium compound fertilizer 60-70 kg, one is conducive to expansion, the second is to prevent the use of high-nitrogen compound fertilizer caused by excessive growth of upper leaves, the formation of closed environment, improve the incidence of disease.
The fourth is to pay attention to disease prevention. The disease of lettuce is very few. After supporting the shed, care should be taken to release the wind every day to reduce the humidity in the shed and reduce the occurrence of diseases. After the temperature has risen, there is no need for a film. In routine management, chlorothalonil, amidoxime, and mesobacillus may be sprayed every 10-15 days to prevent diseases.
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