How Tobacco Uses Bio-organic Fertilizer Tobacco is a kind of crop with equal production and quality. The requirements for fertilizers are very strict. The application of fertilization technology directly affects the growth and development of tobacco and the formation of yield and quality, which affects the improvement of efficiency. The tobacco is divided into four stages: the seedling stage, the regimental period, the long-term and mature period. The seedling stage includes the seedling stage and the seedling stage after transplanting. The nutrient absorption of nitrogen, phosphorus and potassium is not significant during this period. After transplanting seedlings in Datian, the growth of stem and leaf roots gradually accelerated, and it was still mainly vegetative growth due to the standing period. The requirement for fertilizer and water increased significantly. From the time of plantation to budding, tobacco plants have entered a period of vigorous growth, and the number of leaves, leaf area and leaf weight are key stages in determining yield and quality. During the maturation period, the absorption of nutrients by tobacco is significantly reduced, and fertilization is avoided to facilitate timely yellowing and high-quality tobacco formation. The bio-fertilizer can usually be applied only at the seedbed stage. The dosage is 2 kg per square meter, and it is applied during site preparation. Daejeon fertilizes basal fertilizer and top dressing in two ways. The basal organic bio-fertilizer was applied to the soil before transplanting. The amount of mu was 200 kg. Tobacco prefers potash and nitrate nitrogen fertilizers and avoids chloride ions. Combining bio-organic fertilizers with a certain amount of ammonium nitrate and potassium or potassium nitrate is beneficial to tobacco growth and quality improvement. The top dressing of tobacco was mainly composed of quick-acting nitrogen fertilizer and bio-organic fertilizer. The fertilizing time was to chase the fertilizer once in one round. Nitrogen fertilizers generally use ammonium sulfate or urea, 5 to 10 kilograms of urea or 10 to 15 kilograms of ammonium sulfate, and apply 40 to 50 kilograms of bio-organic fertilizer. After fertilization, the available nitrogen fertilizer and bio-organic fertilizer are fully mixed. Shi or cave facilities.
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