Special fertilizer for flue-cured tobaccos in alkalescent tobacco-planting soil as well as preparation method and application of special fertilizer

A special fertilizer and slightly alkaline technology, applied in fertilization methods, applications, fertilizer mixtures, etc., can solve the problems of difficulty in increasing the potassium content of Guangyuan flue-cured tobacco, affecting the absorption of potassium ions by tobacco leaves, and reducing the bioavailability of potassium. The effects of improving the microenvironment, improving the quality of tobacco leaves, and increasing the absorption and utilization rate

Inactive Publication Date: 2014-11-26
INST OF PLANT PROTECTION SICHUAN ACAD OF AGRI SCI +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Due to the high content of calcium ions in the soil, it competes for potassium ion channels, thereby affecting the absorption of potassium ions by tobacco leaves; although the total potassium content of the soil is high, the available potassium content is low or extremely low (below 100 mg / kg), potassium After being applied to the soil, potassium ions are continuously fixed by the soil and cannot be released, seriously reducing the bioavailability of potassium; after tobacco leaves are topped, the content of available potassium in the soil is extremely low, which is the most prominent phenomenon of "backflow" of potassium ions in tobacco leaves One of the main reasons, seriously affecting the potassium content of tobacco leaves
In addition, there are factors such as low soil organic matter content, alkaline reaction of organic matter in the soil, which affects the effectiveness of organic matter, and weak microbial activities, resulting in poor availability of potassium in Guangyuan tobacco planting soil, and the content of potassium in the middle and upper tobacco leaves. Potassium is low at less than 1.7%
The rhizosphere soil environment problem of Guangyuan tobacco planting seriously restricts the absorption of potassium by tobacco leaves, forming a technical bottleneck that is difficult to increase the potassium content of Guangyuan flue-cured tobacco

Method used

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  • Special fertilizer for flue-cured tobaccos in alkalescent tobacco-planting soil as well as preparation method and application of special fertilizer
  • Special fertilizer for flue-cured tobaccos in alkalescent tobacco-planting soil as well as preparation method and application of special fertilizer
  • Special fertilizer for flue-cured tobaccos in alkalescent tobacco-planting soil as well as preparation method and application of special fertilizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 1. Acidic organic and inorganic potassium fertilizer: NPK total nutrients 30% (NPK content ratio is 0:6:24), organic matter content ≧ 15%, containing medium and trace elements, the raw materials used for its preparation and their weight percentages are: lignite (dry basis, Organic matter content ≥ 70%) 25%, citric acid 2%, potassium sulfate (K 2 O content 50%) 48%, monoammonium phosphate (N content 11%, P content 44%) 14%, potassium humate 2% (K 2 O content 50%), magnesium sulfate 2.5%, zinc sulfate 1%, boric acid 0.5%, and bentonite 5%.

[0031] 2. Preparation of acidic organic and inorganic potassium fertilizers

[0032] (1) Determination of effective nutrients of materials and determination of input amount

[0033] Take samples to determine the effective content and moisture content of nitrogen, phosphorus, potassium, magnesium, zinc and boron-related nutrients in raw materials required for the production of monoammonium phosphate, potassium sulfate, potassium huma...

Embodiment 2

[0045] 1. Acidic compound fertilizer: NPK total nutrient 40% (NPK content ratio is 12:12:16), nitrate nitrogen content ≥ 45%, containing medium and trace elements, the raw materials used for its preparation and their weight percentages are: lignite (dry Base, organic matter content ≥ 70%) 6%, citric acid 1%, potassium nitrate (N content 13%, K 2 O content 44%) 18%, potassium sulfate (K 2 O content 50%) 16%, monoammonium phosphate (N content 11%, P content 44%) 26%, ammonium nitrate phosphorus (N content 32%, P content 4%) 22%, potassium humate (K 2 O content 8%) 4%, amino acid 2.5%, magnesium sulfate 3%, zinc sulfate 1%, boric acid 0.5%.

[0046] 2. Preparation of acid compound fertilizer

[0047] (1) Determination of effective nutrients of materials and determination of input amount

[0048] Sampling to determine the effective content and moisture content of nitrogen, phosphorus, potassium, magnesium, zinc and boron-related nutrients in raw materials required for potassium...

Embodiment 3

[0052] 1. Acidic bio-organic fertilizer: organic matter content ≧ 40%, microbial active bacteria content ≧ 0.2 billion / g, the raw materials used for its preparation and their weight percentages are: edible fungus residue (dry basis, organic matter content ≥ 60%) 40 %, dry cow dung (dry basis, organic content ≥ 60%) 10%, dry pig manure (dry basis, organic content ≥ 60%) 25%, oil dry (dry basis, organic content ≥ 70%) 20%, phosphoric acid Monoammonium (N content 11%, P content 44%) 1.3%, urea (N content 46%) 1.3%, fermentation bacteria 0.2%, 2% citric acid, 0.2% Bacillus lateral sporogenes powder, fermentation bacteria count Content≧2 billion / g, composed of Trichoderma viridans 40% (viable bacteria content≧500 million / g), Bacillus subtilis 20% (effective live bacteria content 15 billion≧ / g), Aspergillus oryzae 40% (viable bacteria content ≧ 500 million / gram).

[0053] 2. Preparation method of acid bio-organic fertilizer

[0054] First, mix edible fungus residue, dried cow dung...

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Abstract

The invention discloses a special fertilizer for flue-cured tobaccos in alkalescent tobacco-planting soil as well as a preparation method and an application of the special fertilizer. The special fertilizer comprises acidic organic/inorganic potash fertilizers, acid compound fertilizers and acid biological organic fertilizers. The invention discloses a preparation method of the special fertilizer for flue-cured tobaccos in alkalescent tobacco-planting soil. In the preparation method, the proportion of citric acid is the most important factor in the preparation method. Meanwhile, the invention further discloses a matched application method of three types of fertilizers contained in the prepared special fertilizer for flue-cured tobaccos in alkalescent tobacco-planting soil, wherein the effectiveness of potash nutrients and organic nutrients in the soil can be improved by applying the three types of fertilizers into the soil in a matching manner, i.e., the utilization rate of the potash nutrients is improved above 10%, and the content of potash in the tobaccos is improved above 25%. Meanwhile, the special fertilizer realizes time saving and labor saving and is convenient and low in cost, i.e., the fertilizer applying frequency and the usage amount of chemical fertilizers during the cultivation of the flue-cured tobaccos are reduced, so that the labor cost is reduced, and the planting cost of the flue-cured tobaccos is lowered. As a result, the planting benefit of tobacco growers is improved.

Description

technical field [0001] The invention relates to the field of chemical fertilizer preparation, in particular to a special fertilizer for flue-cured tobacco in slightly alkaline tobacco planting soil and its preparation method and application. Background technique [0002] Potassium is one of the important elements that affect the quality of tobacco leaves. It can promote the synthesis and accumulation of quality-related substances such as sugars and aromas in tobacco leaves, thereby affecting the aroma and aroma quality, flammability and smoldering power of flue-cured tobacco, and the degree of yellowing. and the difficulty of curing, the adaptability of tobacco leaves and the amount of yellow tobacco leaves, as well as the drought resistance and disease resistance during growth. Leymonie and efourneaud pointed out that the minimum potassium content of high-quality tobacco leaves should reach 2%, and the potassium content of tobacco leaves in the United States, Zimbabwe and o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/04A01C21/00C05G3/80
Inventor 王明富顾会战彭毅余垚颖陈利平刘克何云中石儒才尹振华陈子金罗攀
Owner INST OF PLANT PROTECTION SICHUAN ACAD OF AGRI SCI
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