The invention discloses liquid foliar fertilizer special for flue-cured tobacco and with water as solvent. The liquid foliar fertilizer comprises a major element, a medium element, small trace elements and auxiliaries. The content of the major element (N+K2O) is larger than 100 g/L, and the mass ratio of N to K2O is 1:(1-2), the content of the medium element (Mg) is larger than 10 g/L, and the contents of the trace elements including Zn, Mn, B, Fe and Si are larger than 14 g/L, wherein the mass ratio of Zn to Mn to B to Fe to Si is equal to (2-4):(1-3):(1-2):1:1, and the Si is obtained from nano materials. The content of a wetting dispersant ranges from 0.1 g/L to 0.5 g/L, the content of yellow humic acid ranges from 40 g/L to 60 g/L, the liquid foliar fertilizer is diluted with water by 500 times when applied, and the consumption of diluted liquid ranges from 50 kilometers to 60 kilometers per mu. The diluted liquid is sprayed three times in the vigorous growth period and sprayed to the upper portions and middle portions of tobacco leaves, especially the back of the tobacco leaves, spraying is conducted at intervals of 8 days to 10 days, and the oil content of the tobacco leaves is increased by over 15%.

Liquid foliar fertilizer special for flue-cured tobacco

The invention discloses a special trace element fertilizer formula for tobacco and a preparation method thereof. The formula comprises the following components: 0.25-0.5kg of borax, 0.25-0.5kg of zinc sulfate, 0.025-0.05kg of ammonium molybdate and 0.5kg of potassium fulvate. The preparation method of the fertilizer formula comprises the following steps of separately weighing the fertilizers such as borax, zinc sulfate, ammonium molybdate and potassium fulvate according to the fertilizer mass percentage of 0.25-0.5kg of borax, 0.25-0.5kg of zinc sulfate, 0.025-0.05kg of ammonium molybdate and 0.5kg of potassium fulvate per mu of tobacco; sufficiently and uniformly stirring the weighed borax, zinc sulfate, ammonium molybdate and potassium fulvate in 50kg of clear water to prepare a solution of the special trace element fertilizer for tobacco; performing foliage spray for tobacco. In the invention, through the foliage spray for tobacco, the current situation that the growth and development and quality of tobacco are influenced by insufficient trace elements of soil is effectively improved, the content of trace elements in the tobacco leaves is increased, conventional chemical components of tobacco leaves are improved, and the aroma of the tobacco leaves is increased; moreover, the tobacco quality is improved, and the drop of tobacco quality caused by inefficiency in the trace elements of soil is effectively relieved.

Special trace element fertilizer formula for tobacco and preparation method thereof

Organic fertilizer special for tobacco leaves

The invention discloses a method for increasing the peavine yield in an alpine region The method mainly comprises the steps of soil waterlogging treatment, soil fertility increasing, soil thermal insulation, seed water content increasing, seed soaking germination promoting fluid applying, thinning, fertilization and the like By means of the method, the peavine yield in the alpine region can be increased by 10%-15%

Method for increasing peavine yield in alpine region

The invention discloses a hydrogen (pH) regulation type aqueous nutrient solution for tobacco seedling culture. The hydrogen regulation type aqueous nutrient solution is prepared from the following components in parts by weight: 18 to 28 parts of ferrous sulfate heptahydrate, 2 to 2.8 parts of copper sulfate pentahydrate, 7.5 to 8.5 parts of zinc sulfate heptahydrate, 3 to 5 parts of manganese sulfate monohydrate, 0.9 to 1.8 parts of sodium molybdate, 9 to 15 parts of boric acid, 20 to 30 parts of EDTA (Ethylene Diamine Tetraacetic Acid) disodium salt, 78 to 118 parts of water and 20 to 40 parts of a 2-hydroxyethylamine diluting solution. The invention further discloses a preparation method of the potential of hydrogen regulation type aqueous nutrient solution for the tobacco seedling culture. According to the hydrogen regulation type aqueous nutrient solution for the tobacco seedling culture, disclosed by the invention, a 2-hydroxyethylamine complexing agent is added to regulate the pH value so that ferrous ions are not precipitated or oxidized.

Hydrogen regulation type aqueous nutrient solution for tobacco seedling culture and preparation method thereof

The present invention is spherical plant foliar fertilizer especially used for flue-cured tobacco, which is basically composed of the following substances: fulvic acid, zinc sulfate, copper sulfate, ferrous sulfate, boric acid, potassium dihydrogen phosphate, potassium nitrate, rooting powder, ammonium molybdate and acetic acid. Wherein, the ferrous sulfate refers to the ferrous sulfate heptahydrate; the copper sulfate refers to the copper sulphate pentahydrate; the zinc sulfate refers to the zinc sulfate heptahydrate; the acetic acid refers to the acetic acid glacial; the ammonium molybdate and the boric acid are without crystal water. The production method of the foliar fertilizer is as follows: first, a certain amount of 36% acetic acid is added to the mixture of the 25 g / L fulvic acid, followed by zinc sulfate, copper sulfate, ferrous sulfate, boric acid, potassium dihydrogen phosphate and potassium nitrate in sequence, and then 0.1% alcohol containing 5g/L rooting powder is also added to the 25 g / L fulvic acid; then, upon ongoing stirring, 145g/L ammonium molybdate is slowly added to the mixture of the 25 g / L fulvic acid; the mixture is then shaken up and filled into a glass or plastic bottle(do not use metal containers), and then the bottle is sealed, and the spherical plant foliar fertilizer is thus obtained. Compared with the similar foliar fertilizer, the foliar fertilizer provided by the invention can significantly promote the growth and development in tobacco plant resettling period and budding period, markedly increase the yield and value of flue-cured tobacco, significantly increase potassium content of flue-cured tobacco and reduce chlorine content to enable more moderate nicotine content and coordinated chemical composition of tobacco leaves. Therefore, the invention has significant economic and social benefits.

Special-purpose tuanke foliage fertilizer for flue-cured tobacco

The multicomponent chelate fertilizer for tobacco consists of EDTA ammonium or EDTA sodium, zinc sulfate heptahydrate, chalcanthite, green vitriol, anhydrous boric acid, potassium dihydrogen phosphate, rootone, ascorbic acid, anhydrous ammonium molybdate and glacial acetic acid. Its production process includes mixing the materials, packing in glass or plastic bottle, and sealing. It can raise the content of petroleum ether extract and aromatic matter in tobacco obviously, lower its starch content, balance the content of carbon, nitrogen, organic matter and mineral matter in tobacco, and increase the yield of tobacco.

Du Jun

Papers

Special-purpose tuanke foliage fertilizer for flue-cured tobacco

Multicomponent chelate fertizer for tobacco