Management Techniques for Wintering and Returning Lettuce in Lettuce Asparagus lettuce is prone to numerous lateral roots after transplanting, which is easy to survive. After planting, it does not need too much soil moisture. It is better to plant seedlings and light watering when the moisture is not good. After rejuvenation, combined with watering, a small amount of fast-acting nitrogen fertilizer was applied to promote the increase of leaf age and the expansion of leaf area. After the control of watering, strengthen the cultivator seedlings, and promote the rapid expansion of the root system to prevent leggy, enhance plant resistance to cold, conducive to winter, and lay the foundation for the next spring stem swell. Before thawing, combine the roots of the cultivator with roots, or cover horse dung and circling fertilizers to prevent cold. With the increase of temperature, Qichun will enter the green period and the plants will begin to grow. At this time, the management center will use fertilizer and water management to take measures to promote the combination of control and promotion and adjust the relationship between leaf growth and stem hypertrophy. After turning green, the growth of the leaves is dominant, and when the water is poured back, a fecal dilute is applied to protect the loquat and increase the temperature. The leaf area is enlarged and enriched, accumulating more nutrients. After less watering and more cultivating, when the plant grows a leaf ring, that is, a group of trees, topdressing a fast-acting nitrogen fertilizer. Continue to control the water, cultivating the seedlings to prevent unwitting convulsions caused by leggy. When the rosette leaves (plates and leaves) are sufficiently enlarged and the heart leaves are flush with the rosette leaves, the stems begin to enlarge, and the seedlings should be ended. The "control" is to be "promoted", and the timely application of nitrogenous fertilizer and potash fertilizer should be carried out in time. With the acceleration of stem hypertrophy, the amount of water and fertilizer needed to increase, the ground is slightly dry to be poured, watering should be uniform, combined with watering to chase a fast-acting nitrogen fertilizer. In the management of lettuce, the people’s experience is: “There are three lettuces, dried up, dried up, and hungry.†This means that if the management is not properly managed, it is too dry, too wet, or it lacks fertilizer. Slender stems and even early convulsions can greatly reduce food value and economic output. Therefore, it is necessary to understand the relationship between the growth of lettuce leaves and the growth of tender stems. According to climate, soil, and the plant itself, flexible application of technical measures such as watering, fertilizing and cultivating.
Deep Intra Uterine Insemination Catheter
Deep Intra Uterine Insemination Catheter,Artificial Insemination Catheter,Animal Softrandtificial Insemination Catheter,Silicone Veterinary Insemination Catheter
Jinan Mucho Commercial Inc. , https://www.muchovet.com