What about the poor emergence of corn in spring?

What about the poor emergence of corn in spring? What causes the poor emergence of corn in spring? Also ask experienced netizens to help introduce that due to the great climate change in spring, it is easy to have periodic low temperature and spring waterlogging. If corn seeds have been in this low-temperature, high-humidity environment, it is very easy to lead to maize seedlings broken strips, death after emergence and other problems, the planting network sorted out the causes and solutions of poor emergence of corn seedlings, listed below for netizens' reference. The reasons for the poor emergence of maize seedlings are as follows: 1. The sowing depth is too deep, the cold and wet environment is encountered, the ability of arching soil is limited, and the lack of seedlings is serious, which is related to the types of eye stickers. 2. Spring waterlogging leads to drug damage to corn seedlings: in normal years, the drug film is closed at 0mur1.5 cm. After continuous rainy days, the film moves down, resulting in drug damage to corn seeds that have germinated at 4mur5cm. Corn seedlings have no root hairs, water and inorganic salts dependent on root hairs cannot be transported, and the leaves turn yellow. If they are not treated in time, they wilt and die. 3. The stress resistance of maize varieties is poor: in the same land, different varieties have great differences in seedling emergence; in adjacent plots, one variety emerges neatly, the leaf color is green, the other variety lacks seedlings, the leaf color is yellow. If the seeds with more powder appear alternately under the adverse conditions of high humidity and low temperature, there will be a serious lack of seedlings. 4. The soil is caused by climatic factors: the white serous soil with high viscosity and good moisturizing is poor in emergence, because of its poor air permeability, the drug layer is concentrated near the root system with Rain Water, the drainage of white serous soil is poor, and the seeds are in the environment of high humidity and low temperature for a long time, which is disadvantageous to seed emergence, while sand and loam have good drainage and air permeability, and seedling emergence is obviously better. 5. The cultivation ridging method causes that the seedling emergence of the flat ridge land is poor because of its poor drainage and low ground temperature, while the ridge land is just the opposite. 6. corn sowing time causes: generally, high temperature weather occurs for several days in a row around the middle of April, giving people a false impression that the weather is warm and can be planted in advance. Some farmers start farming around April 15 because of the good weather. Later, according to a survey of farmers, the emergence rate of farming before and after April 22 was only about 80%, while that around April 29 was as high as 95%. The solutions to the poor emergence of maize seedlings are as follows: 1. For the emergence of aboveground yellowing and drug damage without root hairs, spraying plant growth regulators containing trace elements, most of the yellowing corn seedlings can turn green after three days. 2. If there is a serious lack of seedlings, dig up the seeds quickly to check the causes. If the leaves are not unearthed or the buds die in the ground, most of them belong to drug damage and should be replanted in time. 3. In the selection of maize varieties, the varieties with strong bud potential and strong stress resistance must be selected. Especially for new varieties, there is little knowledge about their stress resistance, so it is necessary to choose carefully. 4. Be sure to do a good germination test to see whether the bud is strong or not, such as the bud potential, bud rate, whether the bud is strong, and so on. Fortunately, it may not be a big problem in a normal year, but once there are days of low temperature and continuous rain, there will be problems, so seeds with bad bud potential and bad bud rate will not be allowed to go to the ground, so as to avoid the adverse consequences of bad seedling emergence and serious impact on yield. 5. The sowing time should be postponed appropriately, and the first planting should not be avoided. In the case of low temperature and rainy days, powder seeds are easy to appear. The sowing date had better be after Grain Rain. Planting of Fruit Corn High yield method of Sweet Corn in Video