Spring lettuce seedlings
There are two ways to grow spring lettuce in the early spring: one is to improve the Yangshuo nutritional seedlings, and the other is to open seedlings in the open field. Improvement of Yangshuo nutritional seedlings is laborious, time consuming, and labour-intensive. However, spring lettuce can be listed in advance for 7-10 days. Open field seedlings are labor-saving, easy to implement, and time for seedlings to grow slowly after planting. Let's introduce the spring lettuce seedlings breeding method. In the middle and southern part of our province, the spring nursery time for spring lettuce is generally the first year of mid-November. Varieties can be selected from green, green meat, not easy to hollow-leaf lettuce varieties. Apply enough decomposed chicken manure 15 kilograms or 25 kilograms of manure, 2 kilograms of compound manure, and 0.3 kilograms of trace element fertilizer, and then use a shovel to dip the ground surface to fully mix the surface soil and the fertilizer, and then make it 1.5 meters wide.畦 畦 畦, 畦 自 æ ¹æ® æ ¹æ® æ ¹æ® æ ¹æ® ã€‚ 。 。 。 。 。 。 。 。 After the simmering is done, the sorghum is ready to make simmering. After the water seeps, the lettuce seeds are mixed with the fine sand and evenly spread on the surface of the sash, cover the 1-1.5 cm thick sifted fine soil, and then every 1.5-2 meters. Insert a small bamboo plate to make an arch, covering the arch of 2 meters, with both sides buried with soil. After a week or so, when the seedlings emerge, pay attention to the release of the wind. After the snow has passed, no more letting go, so that the lettuce seedlings in the shed can naturally overwinter. After the second year of lettuce turning green, it can be sprinkled with a small amount of urea in combination with watering. In order to make the Miao Miao Qi Miao, Miao Miao measures are essential, thinning usually in the first half of the second year of planting, in line with the principle of strong and weak, so that lettuce spacing to maintain about 4 cm. Lettuce seedlings of the standard: with 5-7 functional leaves, Qi site plant diameter of about 0.7 cm. The disease of spring lettuce is mainly downy mildew, and can be sprayed twice before the freezing in the first year and 3 days before the second year of colonization. Alternative agents include Prokl, Dimethomorph, Amisidae, and the like. Transfer Pump,fire-fighting foam transfer pump,foam transfer pump,foam transfer pump quality joho(HK) Technology Co. , Ltd. , https://www.joho-safety.com