Multifunctional compound fertilizer special for tobacco and preparation method thereof

Abstract

The invention provides a multifunctional compound fertilizer special. The multifunctional compound fertilizer special for tobacco is characterized by comprising the following components in percentage on the basis of the total weight: 0.2-0.4 percent of compound sodium nitrophenolate, 3-5 percent of humic acid, 1.6-8 percent of inorganic mineral powder and the balance of special azophoska for tobacco. The azophoska in the multifunctional compound fertilizer special for tobacco preferably comprises 7-9 percent of N, 10-12 percent of P on the basis of P2O5 and 23-25 percent of K on the basis of K2O. The invention also provides a preparation method of the compound fertilizer. By adding a nutrient activating agent of the humic acid and a plant functional adjustor of the compound sodium nitrophenolate, the invention improves a tobacco-planting soil granular structure and the microbial environment, improves the absorption and the assimilation of the tobacco on nutrient elements, plays the interactive action among the nutrient elements and enhances the drought and disease resistance of the tobacco. The raw material used in the invention is easily obtained and the preparation method is simple and easy to operate.

Description

technical field [0001] The invention relates to the field of mixtures of various fertilizers and non-special fertilizer components, in particular to a tobacco-specific multifunctional compound fertilizer containing a nutrient activator and a plant function regulator and a preparation method thereof. Background technique [0002] Tobacco is an important economic crop in my country. The tobacco planting area in my country is maintained at about 15 million mu all year round. In 2009, the tax and profit of the tobacco industry reached 530 billion yuan, occupying an important position in my country's national economy. Tobacco is a hobby crop that pays equal attention to yield and quality. Among the many factors that affect the quality of tobacco leaves, fertilizer varieties and fertilization techniques are the core to regulate the yield and quality of tobacco leaves. The proper nutrient form and dosage and scientific fertilization are the key technologies to ensure the production...

AI Technical Summary

Problems solved by technology

[0004] Reduce the organic matter content in the soil, deteriorate the soil aggregate structure, significantly acidify the soil, and reduce soil fertility and productivity; long-term application of the above chemical fertilizers and continuous planting of tobacco will reduce the number of beneficial microorganisms in the soil and low enzyme activity, resulting in poor microbial environment in the soil , thus exacerbating the harm of tobacco pests and diseases, increasing the incidence of black shank disease, root rot, root-knot nematode disease, and red spot disease in tobacco fields; making tobacco root development poor, and tobacco absorbing nutrients in the soil poorly; Tobacco planting soil has poor fertilizer and water retention capacity, which ultimately leads to low utilization rate of nutrient elements in chemical fertilizers; poor drought and disease resistance of tobacco;

[0005] It also makes some nutrient elements in t