Chasing "three fertilizers" for high yield of sesame

In order to obtain high quality and high yield of sesame seeds, scientific and reasonable topdressing should be carried out in addition to fine varieties. Specifically, too much nitrogen fertilizer at the seedling stage is easy to make seedlings flourish and form tall seedlings. Therefore, only part of nitrogen fertilizer is used as base fertilizer at the seedling stage of sesame seeds. The masses have the saying of "looking at seedlings and topdressing". When seedling vigor is very poor or seedling size difference is large, a small amount of topdressing fertilizer can be applied first to dilute decomposed human dung or urea. Because sesame roots are shallow at this time, fertilization should be applied as shallow as possible. The bud stage of sesame is the flower bud differentiation stage, the vegetative growth and reproductive growth of sesame go hand in hand, and the topdressing effect is the best at this time. The topdressing should be mainly nitrogen fertilizer, phosphorus and potassium fertilizer supplemented. Boron fertilizer should be applied in boron-deficient areas. Sesame grows most rapidly at flowering stage, and the nutrients absorbed at this stage account for 70%~80% of the whole growth period. In order to meet the needs of plant growth and development, make sesame grow vigorously, accumulate more photosynthetic products, increase the number of flower capsules, stabilize the late growth without premature aging, and make the seeds full, it is necessary to re-apply flower fertilizer. At this time, lateral roots have begun to form in large numbers, the absorption capacity of roots has increased, the growth rate of plants has accelerated, and the demand for nutrients has increased significantly. Fertilization is more convenient to chemical fertilizer, but also the application of decomposed cake manure, manure, manure and so on.