How to grow lettuce? How to achieve high yield in lettuce cultivation? Lettuce is a popular vegetable variety in recent years. The more common lettuce varieties include cabbage lettuce and glass lettuce. To put it simply, lettuce cultivation should take a rotation, reduce planting density, often shallow strokes, and remove dead leaves to burn. Let's take a look at it together.
First, the growth characteristics
Lettuce does not like high temperature environment, but it is not cold resistant. The growth temperature is most suitable for 15 to 20 degrees. The pH value of the soil is 5.8 to 6.6.
Second, planting time
Lettuce is planted for a long time, from August of the year to February of the following year. The most suitable sowing time is from mid-October to mid-December. Of course, it can be planted from early March to early July, but the yield is good. May not be high.
Third, seed germination
Planting lettuce in the hot season must also be germinated for low temperature. First, it can be soaked in well water for about six hours. After washing, it should be wrapped in wet gauze and placed in a environment of 15 to 18 degrees Celsius. Germination in the well.
Fourth, seedling transplanting
Before sowing the lettuce, the seedbed should be poured with enough water, then the seeds and the same amount of wet fine sand should be evenly mixed and spread. In winter and spring greenhouse cultivation or open field cultivation, we must pay attention to maintaining the temperature of the seedbed.
5. Scientific fertilization
Lettuce planting soil requirements, rich in organic matter, and strong clay and loam, and basically have a kilogram of lettuce, 2.5 kilograms of nitrogen fertilizer, 2.4 kilograms of phosphate fertilizer and 9 kilograms of potassium fertilizer.
Sixth, careful planting
Be careful when planting. First, you should fill the seedbed the day before, and bring a little soil when you start the seedling the next day. When planting, first open a ditch in the face, the ditch depth is 4 to 6cm.
Seven, post-plant management
Lettuce is wet and the moisture requirement is very important for the whole lettuce cultivation process. It needs sufficient supply, and the seedling water is poured in five to seven days after planting. Stop watering before picking.
Eight, pest control
The main diseases of lettuce are soft rot, viral disease, downy mildew and the like. Among them, the sclerotinia disease and soft rot are more harmful, so it is recommended that you do a good job in preventing pests and diseases in advance.
The above is the whole focus of the cultivation method of lettuce. The vegetable farmers who need it can collect the spare food. Do you want to know about the lettuce knowledge? You can leave a message below!
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