Foliar fertilizer for tobacco

Abstract

The invention relates to a tobacco leaf fertilizer, which belongs to the technical field of chemical fertilizers. Tobacco special foliage fertilizer of the present invention is made up of the material of following weight part: sodium selenite 0.5-1.4 part, zinc sulfate 22-41 part, borax 17-33 part, manganese sulfate 23-41 part, sodium molybdate 3-10 part 40-60 parts of potassium dihydrogen phosphate, 20-30 parts of magnesium sulfate heptahydrate, 60-80 parts of L-malic acid, 60-90 parts of uremic acid, and 0.05-0.1 parts of copper sulfate. The invention provides a special foliar spray fertilization that can increase the selenium content of flue-cured tobacco leaves, improve the commodity grade and industrial availability of tobacco leaves, and at the same time greatly improve the intrinsic quality of selenium-enriched tobacco leaves and the safety of tobacco leaf raw materials, increase yield, and improve disease resistance. ability.

Description

technical field [0001] The invention relates to a tobacco leaf fertilizer and belongs to the technical field of chemical fertilizers. Background technique [0002] Chemical fertilizers refer to chemically manufactured or mined ore and processed fertilizers, also known as inorganic fertilizers, including nitrogen fertilizers, phosphorus fertilizers, potassium fertilizers, micro-fertilizers, compound fertilizers, etc. They have the following common characteristics: simple ingredients, nutrients High content; fast fertilizer effect, strong fertilizer; some fertilizers have acid-base reaction; generally do not contain organic matter, and have no effect of improving soil and fertilizing. [0003] The macronutrients nitrogen, phosphorus, and potassium in the soil usually cannot meet the needs of crop growth, and fertilizers containing nitrogen, phosphorus, and potassium need to be used to make up for it. In the micronutrient elements, except chlorine, which is not lacking in the ...

AI Technical Summary

Problems solved by technology

At present, tobacco farmers in various tobacco leaf producing areas rely too much on the use of potassium and phosphorus fertilizers, which has caused obvious symptoms of nutritional imbalance in the field growth period of flue-cured tobacco, such as potassium and calcium, magnesium antagonism, phosphorus and zinc antagonism, and tobacco planting in various tobacco areas. The soil itself is deficient in trace elements such as boron, zinc, and molybdenum to varying degrees, which exacerbates the symptoms of nutritional disorders such as boron deficiency, magnesium deficiency, and zinc deficiency in the late stage of tobacco growth (bud and mature stage).