In fact, the corn planting process is very simple. If the high yield of corn to be planted is mainly to capture two points, seedling management and fertilization management, the following is a detailed analysis of the key links and methods for increasing corn planting. Farmers pay attention to seeing you. 1. What are the key links in increasing corn production? In order to obtain high yield, corn should pay attention to and grasp the following two links: First, prevent seedlings from burning at the seedling stage. It is not possible to use high-nitrogen compound fertilizer for the bottom fertilizer. It is necessary to use urea with caution to prevent burnt buds and roots. The second is to prevent post-fertilization problems. It is best not to engage in fertilization once for corn, which is called "one shelling." Topdressing is the best way to solve the problem of de-fertilization. If you use slow-release urea, you can apply a slow-release urea in the big bell period; if it is quick-acting urea, you should apply it again. 2. The more fertilization the higher the yield is? Within a certain range, corn yield increases with the increase of fertilization amount; when the fertilization amount reaches a certain level, continuing to increase the amount of fertilization can not only increase production, but even cause yield decline. So the more fertilized, the higher the corn yield. Excessive fertilization, especially excessive application of nitrogen fertilizer, often leads to the following problems: 1 the crop resistance is reduced, and pests and lodgings are prone to occur; 2 the yield is not increased, the economic benefit of fertilization is decreased; 3 the nutrient is lost, Environmental problems such as atmospheric and water pollution. 3. How to fertilize corn to achieve scientific and reasonable, increase production and income? (1) According to the corn production level, consider the soil fertility capacity to determine the reasonable total fertilization. (2) The amount of fertilizer required for different growth stages of maize is different, and the seedling stage is the critical period of nutrient. Although the demand is not high, it is very sensitive, and it is difficult to make up in the middle and late stages of the lack of fertilizer; the maximum efficiency period is from the allocation to the flowering stage, and the crop grows rapidly. , need a large amount of fertilizer. (3) In order to reduce losses, fertilizers should be applied in depth. Phosphate fertilizer has poor mobility. In order to improve the utilization rate of phosphate fertilizer, phosphate fertilizer should be applied intensively. (4) Select a suitable single fertilizer or a reasonable compound (mixed) fertilizer, pay attention to supplement zinc and other trace element fertilizers. (5) Combine fertilization technology with high-yield corn cultivation techniques and irrigation techniques. 4. Why does the one-time fertilization of corn not solve the problem of not losing fertilizer during the whole growth period? The growth period of spring maize is more than 120 days. When the seedling temperature is low, the growth is slow, mainly rooted and long leaves. The nutrient content is small, and the peak of fertilizer needs to be late. From the dialing to the heading stage, the nutrient growth and reproductive growth stages are required. The most nutrient content is needed. About 50% of the nitrogen is absorbed at this stage. If the nutrient supply is not available, the ear size will be affected. In the northeast region, one-time fertilization refers to the one-time application of the fertilizer required for the whole growth period of spring maize as a base fertilizer in the spring when ridges are applied, and no longer topdressing in the later stage. The fertilizer applied was mainly fast-acting high-nitrogen compound fertilizer, and the release rate of nutrients was not synchronized with the fertilizer requirement of corn, which caused the supply of nutrients in the late growth stage of corn, and the yellow feet and de-fertilization of corn stalk occurred. The growth of all things in the world is inseparable from fertilizer, and the growth of corn is no exception. As long as the fertilizer is properly controlled, it is difficult for you to grow corn. HSG Catheter,silicone HSG catheter,Catheter,HSG Anesthesia Medical Co., Ltd. , https://www.honestymed.com
What needs to be paid attention to when corn planting wants to increase production? Analysis and methods of key links in increasing corn production