1. Spring lettuce, seedling age 25~30 days, 5~6 leaves, planting, row spacing 20×27 cm. The depth is appropriate to be buried in the base of the first petiole. After planting, pour it with water. It is listed as leaves, and the spacing between the rows is 15×20 cm. For mulch mulch cultivation, apply enough base fertilizer at one time and cover with mulch to drain water and prevent stains in rainy days. Cultivation in greenhouses and open fields, choose sunny and warm weather for 1 to 2 times, watering and topdressing in time, watering light manure frequently in the early stage, keeping the border moist, and when the plants are basically closed, tender plants can be put on the market. If the stem is the product, 15 kg of urea per mu is applied 1 to 2 times. 2. Autumn lettuce, seedling age 25 days for planting, row spacing of 25×(30~35) cm, marketed as tender plants, row spacing of 15×20 cm. Choose a cloudy day or after planting in the afternoon, pour press water in time, and use a large shed, small arch shed or flat shed to cover the shading net, and then remove it after the seedlings. Minimize cultivating, shallow cultivating, watering light manure frequently to keep the soil moist. Before and after the plant ridge period, apply 3,000 to 4,000 kilograms of decomposed human and livestock manure or 15 kilograms of urea 2 to 3 times per mu. 3. Overwintering lettuce, the seedbed bottom fertilizer should not be too much. The seedling age is about 40 days old and planted with plastic film mulching, and the row spacing is (30~35)×(30~40) cm. After survival, topdressing with light manure water 1 to 2 times, such as the following year as an adult plant, should pay attention to refine the seedlings before overwintering, do not over-fertilize the water, prevent the seedlings from growing too vigorously, and reapply the antifreeze fertilizer water once before freezing. In the following spring, weeds were removed in time, with shallow field tillage once, and the concentration of topdressing was increased from small to large. After the stem base begins to swell, the number of top dressing decreases and the concentration decreases. For those cultivated in plastic mulch and greenhouses, it is necessary to apply foot fertilizer and pay attention to ventilation management. 4. The distance between rows and plants during planting varies with varieties and seasons. Early-maturing varieties are about 20 cm×18 cm, and mid-late-maturing varieties are 30 cm×25 cm. In the season when the temperature is higher and not suitable for the growth of lettuce, it can be planted more densely; in the season when the lettuce is suitable for growth, it can be sparser. Disclaimer: Some articles on this website are transferred from the Internet. If the legal rights of a third party are involved, please inform this website for processing. phone Gummy Candy,Gummy Worms,Sweet Candy,Soft Candy Montreal Shantou Food Co., Ltd , https://www.montrealsnack.com
How to transplant lettuce (lettuce) seedlings?
Since lettuce has a shallow root system, it should be planted in a soil with good drainage, fertility, water retention, and fertilizer retention. Use 4000~5000 kilograms of decomposed compost and human and livestock manure per mu, and 50 kilograms of compound fertilizer. If the fertilizer is insufficient, the plant growth is poor, and it is easy to bolt in advance. In summer and autumn, lettuce grows with high temperature and heavy rain, so deep groove and high compartment should be used. After applying plantar fertilizer, make compartments with a groove depth of about 15 cm and a compartment width of 1.2 to 1.6 meters, with 4 to 5 rows per compartment. Choose cloudy or evening when transplanting. Transplant with soil without damaging the roots. After transplanting, water enough root water to facilitate survival. If it is sunny after transplanting, shade nets can be used to shade, and it will be timely after survival. Remove.