Every spring, some farmers report that the phenomenon of weak, slow, and lack of seedlings in planting potatoes is very obvious, which affects the yield. What are the reasons for the lack of potatoes? I. Poor quality of seed potatoes Seed diseases are more, and seeded potato was not singled out during seed selection. Seed rot caused by ring rot, late blight, and black shank disease led to seedlings not growing, seedlings rotting in the soil, and diseased seedlings weak. . Seed cuttings are not uniform, and the cuttings are not sterilized, resulting in the rot of the tubers, and the chips cannot grow normally after planting. Second, cryogenic damage In early spring, the temperature is low and the ground temperature rises slowly. When the soil temperature at 10 cm reaches 7°C, the seed buds can grow normally, and when they reach 12°C, they can normally emerge. If the soil temperature is too low, it cannot provide good growth conditions. The potato shoots cannot grow normally, resulting in lack of seedlings and weak seedlings. After the potato emerged, when the temperature dropped to -2°C, the seedlings suffered freezing injury. When the temperature dropped to -3°C, the seedling's stems and leaves would all be frozen to death. Third, sowing too deep Seed sowing depth should be 10 to 12 centimeters, sowing the deeper, it is very easy to bud out of the soil. IV. Insect pest damage Earthworms, ground tigers, and other underground pests bite on potato shoots and bite the potatoes, resulting in microbial infection in the soil, resulting in uneven emergence. At the time of soil preparation, proper amount of phoxim granules can be effectively used to control underground pests. V. Excessive soil moisture After sowing a lot of water, the soil moisture content is high, and some potato buds rot, resulting in lack of seedlings. Six, improper fertilization In the process of fertilization, the application is not uniform, and the fertilizer is in direct contact with the potato chips. The potato buds and young roots are burned, causing the potato to emerge unevenly. Disclaimer: Some articles in this website have been transferred from the Internet. If you are involved in third party legal rights, please inform this website. phone plastic medical collectors Guangdong Widinlsa International Co.Ltd , https://www.widinlsamachine.com