What are the key management points for potatoes during the seedling stage?
The period from potato emergence to the rosette stage is the seedling stage. This seedling stage is relatively short, lasting only about half a month. During this period, it should be matched with a short duration, early plant development, and fast growth, with emphasis on seedling cultivation to lay the foundation for a high yield. So how should potatoes be managed during the seedling stage? Let's take a look together.
1. Promote rooting
After the seedlings emerge, promptly spray 600 times Tianda 2116 Zhuangmiao Ling + 300 times urea solution, spraying once every 10-15 days for 3-4 consecutive sprays. This can promote well-developed root growth, robust plants, and enhance the plants' drought resistance and low-temperature tolerance. It also promotes the plants' root absorption and utilization of fertilizer, enhances leaf photosynthetic efficiency, promotes nutrient synthesis, and lays a solid foundation for early tuber formation and increased yield.
2. Cultivation and weeding
During the seedling stage, cultivation and weeding should be done well. Cultivation and weeding should be frequent and early. After emergence, seedlings have weak resistance, and weeds will affect their normal growth and development, so weeding must be frequent. When using chemical herbicides, pay attention to the concentration and method of use. Cultivation can raise soil temperature, loosen the soil, break up soil compaction, promote smooth soil aeration, and promote robust plant growth.
3. Timely topdressing
Topdressing should preferably be carried out together with watering during the seedling stage and bud stage, especially in the early bud stage, which is exactly the period of rapid underground tuber expansion and also the period of highest fertilizer and water demand for potatoes. At this time, topdressing should be carried out together with watering to dissolve the fertilizer so it begins to be absorbed by the plants. You can apply 20-30 kg of potassium sulfate compound fertilizer per mu, or fertilize according to the application of base fertilizer and the growth of the seedlings to promote tuber expansion.
4. Control underground pests
If ladybug damage is found during the seedling stage, promptly spray 1500-2000 times beta-cyhalothrin solution for control. Underground pests during the seedling stage can easily cause dead seedlings, so control of underground pests must be taken seriously. When making ridges, scatter 3000-4000 grams of phoxim granules per mu for control.
The above is an introduction to the key management points for potatoes during the seedling stage. We hope it can help you. If you want to learn more related knowledge, please stay tuned to us.