Special compound fertilizer for tobaccos and preparation method of special compound fertilizer

Abstract

The invention discloses a special compound fertilizer for tobaccos. The special compound fertilizer is prepared from the following components in parts by weight: 50 to 63 parts of potassium chloride, 200 to 450 parts of potassium sulfate, 70 to 100 parts of potassium nitrate, 100 to 200 parts of monoammonium phosphate, 100 to 210 parts of ammonium nitrate-phosphorus, 4 to 40 parts of a boron fertilizer, 55 to 81 parts of magnesium sulfate, 21 to 26 parts of ZnSO4.7H2O and 10 to 20 parts of a release controlling agent. A preparation method comprises the following steps: mixing, pre-heating, granulating, drying, sieving, cooling and sieving again. The special compound fertilizer for the tobaccos is specially designed by aiming at fertilizer demanding characteristics of the tobaccos, and has the effects of enhancing the adsorption efficiency on the fertilizer by soil and improving the absorption rate of nitrogen and a phosphorus fertilizer.

Description

technical field [0001] The invention relates to the technical field of compound fertilizers, in particular to a special compound fertilizer for tobacco and a preparation method thereof. Background technique [0002] Nicotiana is an annual or limited perennial herb of the family Solanaceae, with a slightly lignified base. Tobacco is a commercial crop with wide adaptability and strong plasticity. It can be grown on a wide range of soil types and under relatively wide climatic conditions. However, from the perspective of continuous production of high-quality tobacco, the response of tobacco to ecological conditions is relatively Sensitive. Differences in ecological conditions not only affect the morphological characteristics and agronomic shape of tobacco, but also directly affect the chemical composition and quality of tobacco leaves. The ecological conditions that affect the growth, yield and quality of tobacco are mainly topography, climate and soil conditions. [0003] I...

AI Technical Summary

Problems solved by technology

For a long time, people have done a lot of research on tobacco planting soil and fertilization techniques, and developed some special fertilizers for tobacco according to the law of tobacco fertilizer requirements, which played an important role in increasing the yield of tobacco leaves. However, after these fertilizers are applied to the soil, they all It cannot be fully absorbed and utilized by crops, and a large part of it is converted into a form that cannot be absorbed by crops due to factors such as leaching, volatilization or being fixed by the soil; especially conventional compound fertilizers have low nutrient utilization and short fertilizer effect period, which cannot meet the needs of crop growth and development. Need; according to the statistical results of China Fertilizer Information Center: At present, the utilization rate of nitrogen fertilizer for grain crops in my country is 25.6-35.6%, the utilization rate of phosphorus fertilizer is 9.7-13.7%, and the utilization rate of potassium fertilizer is only 28.7-33.8%.

The overall utilization rate of fertilizers is less than 30%; resulting in serious resource consumption, aggravated environmental pollution, high fertilizer costs for farmers, crop defertilization and production reduction, etc.