Lettuce is a cooler-climate vegetable that grows at a temperature between 15 and 20. In this temperature range, lettuce will grow faster and be of better quality. In addition, lettuce needs plenty of sunlight and water, as well as the right soil nutrients and pH.
When growing lettuce, it is important to choose the right season and environment. In general, spring and autumn are the best seasons for lettuce to grow, as the climate in these two seasons is cooler and suitable for lettuce growth. In addition, the land on which lettuce is grown should be flat, fertile, and well-drained, and the pre-crop crop should not be some vegetables that have the same pests and diseases as lettuce.
Before planting, the soil needs to be prepared, fertilized and watered. Plough the soil deep enough to allow it to be soft and breathable. Pay attention to the appropriate amount of fertilizer when applying fertilizer, so as not to cause soil salinization due to excessive use of chemical fertilizers. Make sure the water source is clean and the frequency of watering depends on the moisture of the soil and the weather conditions.
When growing lettuce, it can be done in strip or on-demand. Strip sowing is to cut a shallow trench in the land, spread the seeds evenly in the ditch, and then cover the soil. On-demand sowing is to sow seeds directly on the soil at certain intervals and then cover them with soil. Either way, pay attention to the depth of the seeds and the moisture of the soil to ensure that the seeds can germinate smoothly.
During the growth of lettuce, it is necessary to water, fertilize and weed at the right time. When watering, it is necessary to avoid overwatering and causing the soil to be too wet, and when fertilizing, it is necessary to determine according to the growth of lettuce and the nutrient status of the soil, and to remove weeds in time when weeding, so as not to affect the growth of lettuce. In addition, it is also necessary to pay attention to the prevention and control of pests and diseases, and once pests and diseases are found, measures should be taken in time to avoid affecting the quality and yield of lettuce.