CN104829288A - Tobacco foliar fertilizer and preparation method thereof - Google Patents

Abstract

A tobacco leaf fertilizer and a preparation method thereof, comprising the following components in parts by weight: 20-25 parts of potassium tripolyphosphate, 15-20 parts of potassium citrate, 3-6 parts of sargassum fermented extract, glutathione 0.5-2 parts of glycypeptide, 0.5-2 parts of β-deoxyglucose, 0.1-1 part of S-abetin, 0.5-1 part of xylo-oligosaccharide, 0.2-0.5 part of salicylic acid, 1-3 parts of boric acid, molybdenum Ammonium acid 0.1-0.5 parts, EDTA chelated zinc 0.5-2 parts, EDTA chelated magnesium 0.5-2 parts, EDTA chelated manganese 0.3-2 parts, EDTA chelated copper 0.3-1 part and alkyl polyglycoside 0.5-1 parts, 31 to 56.2 parts of water. The above-mentioned tobacco foliar fertilizer has a reasonable combination and an appropriate proportion, which can promote the growth of tobacco, improve the resistance of tobacco to viral diseases, cold resistance, and drought, increase yield, be green and environmentally friendly, and greatly improve the quality of tobacco.

Description

A kind of tobacco leaf fertilizer and preparation method thereof

technical field

The invention relates to the field of tobacco leaf fertilizer, in particular to a tobacco leaf fertilizer and a preparation method thereof.

Background technique

my country is a big tobacco-growing country, and chemical fertilizers are the material guarantee for the sustainable development of tobacco and the basis for increasing tobacco production. The practice of the world's agricultural development has proved that the application of chemical fertilizers is the fastest, most effective and most important measure to increase production. Since 1980, China's chemical fertilizer application has grown at an average annual rate of 4%. At present, China has become the world's largest producer and consumer of chemical fertilizers. Although the arable land area only accounts for 7% of the world's total arable land area, China's chemical fertilizer application is close to 1/3 of the world's total. Soil acidification and compaction caused by the unreasonable use of a large amount of chemical fertilizers, and the ability of crops to resist diseases and stresses are greatly reduced.

Flue-cured tobacco is a special luxury product, and its quality is an important indicator that affects the application of flue-cured tobacco. High-quality tobacco leaves require sufficient aroma, pure aroma, mellow taste, comfortable aftertaste, and good safety. Tobacco varieties, climatic conditions, cultivation measures, soil fertilization, etc. all have an important impact on the quality of flue-cured tobacco. At present, domestic tobacco leaves lack aroma, taste bad, and oil content, so it is imminent to improve the quality of tobacco leaves. At present, due to the long-term single application of chemical fertilizers in a large number of flue-cured tobacco production areas in my country, the content of organic matter in the soil has decreased, and the tobacco leaves have shown nutritional imbalances, low oil content, and insufficient aroma.

Contents of the invention

Based on this, it is necessary to provide a tobacco leaf fertilizer for the problems of poor disease resistance and stress resistance of tobacco and low quality of tobacco leaves.

A tobacco leaf fertilizer, comprising the following components in parts by weight: 20-25 parts of potassium tripolyphosphate, 15-20 parts of potassium citrate, 3-6 parts of sargassum fermented extract, 0.5-25 parts of glutathione 2 parts, 0.5 to 2 parts of β-deoxyglucose, 0.1 to 1 part of S-inducer, 0.5 to 1 part of xylooligosaccharide, 0.2 to 0.5 part of salicylic acid, 1 to 3 parts of boric acid, 0.1 to 0.1 part of ammonium molybdate 0.5 parts, 0.5-2 parts of EDTA chelated zinc, 0.5-2 parts of EDTA chelated magnesium, 0.3-2 parts of EDTA chelated manganese, 0.3-1 part of EDTA chelated copper and 0.5-1 part of alkyl polyglycoside, water 31 ~56.2 copies.

In one of the embodiments, the tobacco foliar fertilizer includes the following components: 20 parts of potassium tripolyphosphate, 20 parts of potassium citrate, 6 parts of Sargassum fermented extract, 0.5 parts of glutathione, and 0.5 parts of β-deoxyglucose , 0.1 part of S-antibiotic, 0.5 part of xylooligosaccharide, 0.2 part of salicylic acid, 2 parts of boric acid, 0.1 part of ammonium molybdate, 0.5 part of EDTA chelated zinc, 0.5 part of EDTA chelated magnesium, 0.5 part of EDTA chelated manganese 0.3 parts, EDTA chelated copper 0.3 parts and alkyl polyglycosides 0.5 parts, water 48 parts.

Further, a preparation method of tobacco leaf fertilizer is provided.

The preparation method of the tobacco foliage fertilizer comprises the following steps: taking raw materials by weight and pulverizing them, stirring and heating to 60° C., continuing stirring, and cooling; adjusting the pH value to 7 to 8 to obtain the tobacco foliage fertilizer.

In one embodiment, the step of stirring and heating to 60°C is specifically: putting the pulverized raw materials into a high-shear reactor, stirring at a constant speed of 60 rpm, and heating to 60°C.

In one embodiment, the step of adjusting the pH value from 7 to 8 is specifically: adding citric acid to the cooled material to adjust the pH value.

Among the above-mentioned tobacco foliar fertilizers, the composition is reasonably matched and the ratio is appropriate, which provides essential nutritional components for the growth of tobacco, and at the same time promotes the metabolism of tobacco, improves the anti-virus and disease resistance of tobacco, and enhances the drought resistance and cold resistance of tobacco. and stress resistance, while increasing the potassium content and the total amount of sugar in the tobacco leaves to improve the quality and aroma of the tobacco leaves. The above-mentioned tobacco foliar fertilizer can promote the growth of tobacco, enhance the anti-virus, cold resistance, drought resistance and other resistance capabilities of tobacco, increase the yield, and greatly improve the quality of tobacco.

The preparation method of the above-mentioned tobacco leaf fertilizer has simple operation, short process steps and low reaction temperature, and is suitable for industrial production.

Description of drawings

Fig. 1 is a flow chart of a method for preparing tobacco leaf fertilizer according to one embodiment.

Detailed ways

In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific implementations disclosed below.

The tobacco foliage fertilizer according to one embodiment comprises the following components in parts by weight: 20-25 parts of potassium tripolyphosphate, 15-20 parts of potassium citrate, 3-6 parts of sargassum fermented extract, glutathione 0.5 to 2 parts, 0.5 to 2 parts of β-deoxyglucose, 0.1 to 1 part of S-inducer, 0.5 to 1 part of xylooligosaccharide, 0.2 to 0.5 part of salicylic acid, 1 to 3 parts of boric acid, ammonium molybdate 0.1 to 0.5 parts, 0.5 to 2 parts of EDTA chelated zinc, 0.5 to 2 parts of EDTA chelated magnesium, 0.5 to 2 parts of EDTA chelated manganese, 0.3 to 1 part of EDTA chelated copper and 0.5 to 1 part of alkyl polyglycoside, 31-56.2 parts of water.

Sargassum fermented extract is made of Sargassum in the deep sea. After an original biological fermentation process, it is highly concentrated, fully water-soluble, rich in plant-derived active substances, and high-quality organic carbon source. Sargassum fermented extract is a biological fertilizer that integrates nutrition and conditioning, and is easily absorbed by tobacco. It contains fucoxanthin and seaweed polysaccharide, and is rich in natural seaweed active substances, natural plant growth regulators, mannitol, amino acids and more than 100 kinds of active substances. Fucoxanthin is an important component involved in plant photosynthesis, which can improve the photosynthetic efficiency of tobacco and make more efficient use of light. Seaweed polysaccharides can not only chelate heavy metal ions, but also increase soil air permeability and have stress resistance. The active substances can promote crop growth, root development, increase photosynthesis, strengthen plants, greatly improve crop quality, and enhance disease resistance, cold resistance, and drought resistance.

Glutathione can resist tobacco oxygen damage, enhance the stress resistance of tobacco by increasing the activity of many enzymes in tobacco cells and activating various enzyme systems in tobacco; it can also alleviate herbicide damage and improve plant resistance to environmental pollution stress The ability to prevent premature leaf senescence and seed deterioration; at the same time, through special carriers inside and outside the cells, nutrients are transported into the cells, and metabolites are transported out of the cells to renew old and aging cell components and replace and eliminate intracellular toxins.

Potassium citrate is a kind of potassium fertilizer containing organic acid. Citric acid directly participates in the C3 cycle. Potassium ions can be directly absorbed by tobacco plants, which plays a vital role in improving the quality of tobacco.

β-deoxyglucose works by inhibiting the energy metabolism of the virus, and has a unique effect on the control and mitigation of tobacco mosaic virus. β-deoxyglucose is a glucose analog with a structure very similar to glucose, which can compete with glucose for binding to virus surface receptors, and the abrupt structure at the β position makes it have a much greater affinity with virus and bacterial surface receptors than glucose. Viruses cannot recognize glucose and β-deoxyglucose, so β-deoxyglucose is preferentially used, the tricarboxylic acid cycle is blocked, energy cannot be provided, the synthesis of viral glycoprotein and envelope is blocked, and normal growth and replication cannot be performed.

S-abscisic acid (S-ABA) can improve the drought resistance, cold resistance, disease resistance and other abilities of plants while improving the quality of crops, and maintain the growth ability of crops under abnormal climate, soil and environmental conditions , and get a good harvest. After the application of S-antibodies, the disease resistance ability of tobacco plants is significantly improved, especially the defense effect against fusarium wilt, gray mold, root rot and blight.

Salicylic acid (salicylic, SA) chemical name o-hydroxybenzoic acid, participates in various physiological and biochemical processes such as plant transpiration, seed germination, flowering, fruiting, stomatal closure, heat production, etc. It can induce tobacco to produce disease resistance, salt resistance, cold tolerance, etc. A variety of physiological traits can also participate in the mitochondrial anti-cyanide respiration and non-phosphorylation pathways of plant cells, and improve the metabolism of jasmonic acid in tobacco, thereby improving the stress resistance of tobacco.

Xylo-oligosaccharides are functional polymeric sugars formed by connecting 2 to 7 xylose molecules with β-1,4 glycosidic bonds. Xylo-oligosaccharide has excellent ability to retain water, its freezing point is very low, its antibacterial effect is very prominent, and it has strong cold resistance.

Potassium tripolyphosphate is a high-efficiency phosphorus-potassium compound fertilizer with good solubility in solution. It has strong resistance to hard water and can chelate calcium and magnesium ions in water.

Alkyl polyglucosides have good wetting and penetrating properties. Alkyl polyglucosides also help to increase the absorption rate and rate of fertilizer absorption by plants. They are suitable as fertilizer synergists, surfactants, and spreading agents, and can be adjusted Soil temperature has a significant synergistic effect on fertilizers used in agriculture.

Ammonium molybdate can provide nitrogen source for the growth of tobacco, and molybdenum element plays a key role in nitrogen metabolism, photosynthesis and respiration of tobacco.

Boric acid can promote the merigenesis of tobacco growth cells, control the transport of sugar substances, and ultimately affect the quality of tobacco leaves. Participate in cell elongation, cell division and nucleic acid metabolism, closely related to the synthesis of carbohydrates and proteins. Affects tissue differentiation and synthesis of cytokinins and nicotine.

EDTA chelated zinc: Zinc is an activator of some enzymes in the redox process and an indispensable component of tryptophan.

EDTA chelated magnesium: the main function of magnesium is as the central atom of chlorophyll, located in the middle of the chlorophyll molecular structure Yelin ring, and is the only metal atom in chlorophyll. Magnesium is a strong activator of enzymes. Enzymes involved in photosynthesis, glycolysis, tricarboxylic acid cycle, respiration, sulfate reduction and other processes in tobacco all rely on enzymes to activate.

EDTA chelated copper: Copper is a component of copper oxidase, tyrosine, ascorbic acid and other substances, and participates in the redox process. Copper ions can stabilize chlorophyll and enhance the resistance of tobacco plants to fungal diseases.

Manganese chelated with EDTA: Manganese is a component of many oxidative enzymes and plays an important role in metabolic processes related to redox.

Sargassum fermented extract, glutathione, and salicylic acid act synergistically to improve the stress resistance of tobacco from different pathways and mechanisms, and the combined effect of Sargassum fermented extract and xylo-oligosaccharides improves the cold resistance of tobacco Sex, Sargassum fermented extract, β-deoxyglucose, S-inducer and salicylic acid, multi-channel synergistic effect, improve the antiviral activity of tobacco. Potassium tripolyphosphate and potassium citrate provide sufficient potassium elements and nutrients for the growth of tobacco, while boric acid, ammonium molybdate, EDTA chelated zinc, EDTA chelated magnesium, EDTA chelated manganese and EDTA chelated copper provide the necessary trace amounts Elements, under the action of alkyl polyglycosides, the absorption efficiency of tobacco to potassium, nutrients and trace elements is improved. In addition, potassium tripolyphosphate, potassium citrate, boric acid, ammonium molybdate, and seaweed polysaccharides, mannitol, and amino acids in Sargassum extract can increase the sugar content of tobacco, enhance the total sugar content of tobacco, and improve the quality of tobacco.

Among the above-mentioned tobacco foliar fertilizers, the composition is reasonably matched and the ratio is appropriate, which provides essential nutritional components for the growth of tobacco, and at the same time promotes the metabolism of tobacco, improves the anti-virus and disease resistance of tobacco, and enhances the drought resistance and cold resistance of tobacco. and stress resistance, while increasing the potassium content and total sugar content in the tobacco leaves to improve the quality and aroma of the tobacco leaves. The above-mentioned tobacco foliar fertilizer can promote the growth of tobacco, enhance the anti-virus, cold resistance, drought resistance and other resistance capabilities of tobacco, increase the yield, and greatly improve the quality of tobacco.

Please refer to Fig. 1, the preparation method of the tobacco foliage fertilizer of an embodiment, comprises the following steps:

Step S101: Weighing and pulverizing the raw materials in parts by weight, stirring and heating to 60° C., continuing to stir, and cooling.

Step S102: adjusting the pH value to 7 to 8 with citric acid to obtain tobacco leaf fertilizer.

Weigh the raw materials according to the metering ratio, pulverize them separately, put them into the reactor in batches, and heat up to 60°C under stirring. The reactor can be preferably a high-shear reactor, which is convenient to operate and uniformly stirred.

It is preferred to program the temperature up to 60° C. at a rate of 60 revolutions per minute. At this rate of temperature increase, the rate of heat transfer among the components is reasonable.

The liquid at the beginning of the reaction is alkaline, and the pH value is adjusted to 7 to 8 with citric acid. After the pH value is adjusted, sampling testing, metering and packaging, and final product storage can also be carried out.

The preparation method of the above-mentioned tobacco leaf fertilizer has simple operation, short process steps and low reaction temperature, and is suitable for industrial production.

The components in the tobacco foliage fertilizer are marketed products, which are easy to purchase and have no restrictions on the manufacturer. The sources of the components in the tobacco foliage fertilizer in the examples are as follows:

The using method of tobacco leaf fertilizer of the present invention is as follows:

1. Carry out conventional fertilization on tobacco. Conventional fertilization includes early base fertilizer and late topdressing, as follows:

Early base fertilizer: 50 kg of organic fertilizer (mainly cake fertilizer); 50 kg of compound fertilizer (nitrogen-phosphorus-potassium 10:10:25); apply 0.5 kg of borax and 1.5 kg of zinc sulfate per mu, all used as base fertilizer; Top dressing: 50 kg of potassium nitrate.

Cake fertilizer is the residue left after oil-bearing oil seeds are pressed, and those used as fertilizers are called cake fertilizer. There are many types of cake fertilizers, mainly soybean cake, rapeseed cake, cotton cake, peanut cake, castor cake, tung seed cake and so on. Cake fertilizer contains a large amount of organic matter, protein, residual oil and vitamins, etc., with high nutrient concentration. Cake fertilizer composition varies with varieties and oil extraction methods. Generally, organic matter content is 75% to 85%, N is 2% to 7%, P ₂ O ₅ is 1% to 3%, and K ₂ O is 1% to 2%. , also contains trace elements. Among them, the content of nitrogen is the most, followed by phosphorus and potassium, especially the nitrogen content of bean cake is high, about 6% to 7%, and the content of tea cake is the lowest, about 1.11%; Phosphorus is higher, up to 2% to 3% (Table 16-9). Nitrogen and phosphorus in cake fertilizer are mostly in organic state. Nitrogen is mainly in the form of protein, phosphorus is mainly in the form of phytophyte and lecithin, and potassium is mostly water-soluble. More than 96% of potassium in the oil cake can be extracted by hot water extraction. In addition, cake fertilizer contains certain oil and fatty acid compounds, and absorbs water slowly. Therefore, cake fertilizer is a kind of slow-acting organic fertilizer, which must be fermented and decomposed by microorganisms before it can exert its fertilizer effect. After different types of cake fertilizers were applied to the soil, under flooding conditions, the rates of decay and decomposition and conversion of organic nitrogen into ammonium nitrogen were different. Among them, the nitrogen content of tea cake was the lowest and the decomposition speed was the slowest, and the nitrogen content of sesame cake was the lowest. High, the decomposition rate is also fast. This is because the cake fertilizer with high nitrogen content has a small C/N ratio, which is conducive to microbial decomposition, so the fertilizer effect is fast.

2. Tobacco foliage fertilizer of the present invention is mixed with water, and the ratio of watering is 50kg per 100ml of tobacco foliage fertilizer, and the amount is the amount per mu of crops, and then directly sprayed on the surface of crops, and used 2-3 times during the whole growth period . The above-mentioned ratio of watering is preferably 50 kg of water per 100 ml of new macronutrient water-soluble fertilizer, which is the amount of crops per mu.

The following are specific examples.

Example 1

Weigh raw materials according to the following proportions: 20 parts of potassium tripolyphosphate, 20 parts of potassium citrate, 6 parts of Sargassum fermented extract, 0.5 parts of glutathione, 0.5 parts of β-deoxyglucose, 0.1 parts of S-induced 0.5 part xylooligosaccharide, 0.2 part salicylic acid, 2 parts boric acid, 0.1 part ammonium molybdate, 0.5 part EDTA chelated zinc, 0.5 EDTA chelated magnesium, 0.3 EDTA chelated manganese, EDTA chelated copper 0.3 parts and 0.5 parts of alkyl polyglucoside, 48 parts of water.

The raw materials are pulverized separately, put into a high-shear reactor for stirring in batches, heated at a speed of 60 rpm to 60°C, continued to stir, cooled, and adjusted the pH value of the liquid to 7 to 8 with citric acid to obtain a tobacco leaf fertilizer .

Example 2

Weigh the raw materials according to the following proportions: 20 parts of potassium tripolyphosphate, 15 parts of potassium citrate, 3 parts of Sargassum fermented extract, 0.5 parts of glutathione, 0.5 parts of β-deoxyglucose, 0.1 parts of S-induced 0.5 part xylooligosaccharide, 0.2 part salicylic acid, 1 part boric acid, 0.1 part ammonium molybdate, 0.5 part chelated zinc EDTA, 0.5 part chelated magnesium EDTA, 0.3 part chelated manganese EDTA, 0.3 part chelated copper EDTA 0.3 parts and 0.5 parts of alkyl polyglycosides, 31 parts of water.

The raw materials are pulverized separately, put into a high-shear reactor for stirring in batches, heated at a speed of 60 rpm to 60°C, continued to stir, cooled, and adjusted the pH value of the liquid to 7 to 8 with citric acid to obtain a tobacco leaf fertilizer .

Example 3

Weigh the raw materials according to the following proportions: 25 parts of potassium tripolyphosphate, 20 parts of potassium citrate, 6 parts of Sargassum fermented extract, 2 parts of glutathione, 2 parts of β-deoxyglucose, 1 part of S-abetin 1 part xylooligosaccharide, 0.5 part salicylic acid, 3 parts boric acid, 0.5 part ammonium molybdate, 2 parts EDTA chelated zinc, 2 parts EDTA chelated magnesium, 2 parts EDTA chelated manganese, EDTA chelated copper 1 part and 1 part of alkyl polyglucoside, 56.2 parts of water.

The raw materials are pulverized separately, put into a high-shear reactor for stirring in batches, heated at a speed of 60 rpm to 60°C, continued to stir, cooled, and adjusted the pH value of the liquid to 7 to 8 with citric acid to obtain a tobacco leaf fertilizer .

The experimental design is as follows:

Test site and crops: Yunyan 97C3F, Guiyang County, Hunan Province, Yunyan 97C3F, Jiahe County, Hunan Province

experiment method:

Comparative example: conventional fertilization+spraying the same amount of clear water in Example 1.

Embodiments 1 to 3: conventional fertilization+spraying 100ml of tobacco foliar fertilizer prepared by each embodiment, all sprayed on the leaves by watering 50kg/mu, and used in the slow seedling stage, group tree stage, and thickening stage respectively , used a total of 3 times.

Among them, the impact of various indicators in tobacco on tobacco quality is as follows:

Total sugar: The water-soluble total sugar content of flue-cured tobacco is generally between 15% and 35%, and the suitable content is 20-26%. The reducing sugar content of flue-cured tobacco is generally between 15% and 26%, with 18% to 25% being the best. Within a certain range, the amount of total sugar content is directly proportional to the quality of tobacco.

Total Nitrogen: The level of total nitrogen content is closely related to the taste of tobacco leaves when burning and smoking: tobacco leaves with high total nitrogen content, the smoke produced when burning and smoking is often highly irritating, with poor aroma and poor aftertaste Good; when the total nitrogen content is too low, its strength is insufficient, generally 1.5% to 3.5% is appropriate. Within a certain range (1.5% to 3.5%), the nitrogen content is inversely proportional to the quality of the tobacco.

Potassium oxide: Potassium is a quality element, and the potassium content in general tobacco is 2.0% to 2.5%. Generally speaking, the content of potassium oxide is directly proportional to the quality of tobacco.

Protein: Protein is one of the main nutrients of tobacco plants and the main material basis for maintaining the vitality of the body during the growth of tobacco. The protein content and quality in fresh dried tobacco leaves is very high, and the lower the grade of tobacco leaves, the higher the protein content, which will produce tobacco tar after burning. The protein in tobacco has a great influence on the quality of tobacco, and its content is between 5% and 15%. Generally speaking, the amount of protein content is inversely proportional to the quality of tobacco, and the protein content of high-quality tobacco is below 10%.

Nicotine: Nicotine is a unique alkaloid in tobacco plants, accounting for 90-95% of the total alkaloids in tobacco cultivars. The purpose of people smoking is exactly the nicotine in smoking tobacco, obtains a kind of physiological satisfaction from it. When it is too low, the smoke will be bland, and the smoker will not be satisfied; if it is too high, the smoke will be strong and unhealthy. Therefore, nicotine is an important factor to measure the quality of tobacco. In recent years, the appearance quality of tobacco leaves in some smoking areas in my country is close to the international level, but the chemical composition of tobacco leaves is not coordinated. One of the main problems is the high nicotine content, which is as high as 3% to 4% in general-quality flue-cured tobacco; The alkali content is 2.2% to 2.5%.

Experimental results

The output results are compared in the following table

In the comparative experiment in Guiyang County: 0.3% of the tobacco plants in the comparative example had initial symptoms of infection with mosaic virus. After preventive treatment, the spread of tobacco mosaic virus was controlled. However, in Examples 1-3, no plants infected with tobacco mosaic virus were found. It shows that the tobacco foliar fertilizer of the present invention can effectively enhance the disease resistance of tobacco. The average yield of tobacco in 1 to 3 of the examples is significantly higher than that of the comparative example, indicating that the tobacco foliar fertilizer of the present invention can effectively increase the yield of tobacco, and the average yield of Example 1 is the highest, which is the best example .

In the comparison test in Jiahe County: 0.5% of the tobacco plants in the control group were infected with the initial symptoms of mosaic virus. After preventive treatment, the spread of tobacco mosaic virus was controlled. However, in Examples 1-3, no plants infected with tobacco mosaic virus were found. It shows that the tobacco foliar fertilizer of the present invention can effectively enhance the disease resistance of tobacco. The average yield of tobacco in 1 to 3 of the examples is significantly higher than that of the comparative example, indicating that the tobacco foliar fertilizer of the present invention can effectively increase the yield of tobacco, and the average yield of Example 1 is the highest, which is the best example .

Tobacco quality comparison table below

distinguish Test Location Test crops total sugar total nitrogen potassium oxide protein Nicotine comparative example Guiyang County Yunyan 97C3F 22.31 2.17 2.13 9.65 3.47 comparative example Jiahe County Yunyan 87C3F 22.11 2.03 2.03 9.43 3.32 Example 1 Guiyang County Yunyan 97C3F 24.80 1.91 2.78 8.32 2.35 Example 1 Jiahe County Yunyan 87C3F 24.92 1.88 2.58 8.56 2.28 Example 2 Guiyang County Yunyan 97C3F 24.80 1.91 2.78 8.32 2.35 Example 2 Jiahe County Yunyan 87C3F 24.92 1.88 2.58 8.56 2.28 Example 3 Guiyang County Yunyan 97C3F 24.80 1.91 2.78 8.32 2.35 Example 3 Jiahe County Yunyan 87C3F 24.92 1.88 2.58 8.56 2.28

In the comparative experiment in Guiyang County:

The total sugar content and total nitrogen content of the tobacco leaves in Examples 1-3 were higher than the corresponding index content of the tobacco leaves in the comparative examples, while the potassium oxide, protein and nicotine contents in the examples 1-3 were lower than those in the comparative examples The corresponding index content of the tobacco leaves proves that the quality of the tobacco leaves is greatly improved, and the tobacco leaf surface fertilizer of the present invention can greatly improve the quality of the tobacco leaves. Wherein Example 1 has the highest total sugar content and total nitrogen content in the tobacco leaves, and the lowest content of potassium oxide, protein and nicotine, which is the optimal example.

In the comparative trial in Jiahe County:

The total sugar content and total nitrogen content of the tobacco leaves in Examples 1-3 were higher than the corresponding index content of the tobacco leaves in the comparative examples, while the potassium oxide, protein and nicotine contents in the examples 1-3 were lower than those in the comparative examples The corresponding index content of the tobacco leaves proves that the quality of the tobacco leaves is greatly improved, and the tobacco leaf surface fertilizer of the present invention can greatly improve the quality of the tobacco leaves. Wherein Example 1 has the highest total sugar content and total nitrogen content in the tobacco leaves, and the lowest content of potassium oxide, protein and nicotine, which is the optimal example.

The above-mentioned embodiments only express several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but should not be construed as limiting the patent scope of the present invention. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention should be based on the appended claims.

Claims (5)

1. A tobacco leaf fertilizer and a preparation method thereof, characterized in that, in parts by weight, comprising the following components: 20 to 25 parts of potassium tripolyphosphate, 15 to 20 parts of potassium citrate, 3 parts of Sargassum fermented extract ～6 parts, 0.5～2 parts of glutathione, 0.5～2 parts of β-deoxyglucose, 0.1～1 part of S-abetin, 0.5～1 part of xylooligosaccharide, 0.2～0.5 parts of salicylic acid, boric acid 1 to 3 parts, 0.1 to 0.5 parts of ammonium molybdate, 0.5 to 2 parts of EDTA chelated zinc, 0.5 to 2 parts of EDTA chelated magnesium, 0.3 to 2 parts of EDTA chelated manganese, 0.3 to 1 part of EDTA chelated copper and alkanes 0.5-1 part of base polyglycoside, 31-56.2 parts of water. 2. The tobacco foliage fertilizer according to claim 1, characterized in that it comprises the following components: 20 parts of potassium tripolyphosphate, 20 parts of potassium citrate, 6 parts of Sargassum fermented extract, 0.5 part of glutathione , 0.5 part of β-deoxyglucose, 0.1 part of S-inducer, 0.5 part of xylooligosaccharide, 0.2 part of salicylic acid, 2 parts of boric acid, 0.1 part of ammonium molybdate, 0.5 part of EDTA chelated zinc, 0.5 part of EDTA chelated magnesium 0.5 parts, 0.3 parts of EDTA chelated manganese, 0.3 parts of EDTA chelated copper, 0.5 parts of alkyl polyglycoside, 48 parts of water. 3. A tobacco foliage fertilizer and a preparation method thereof, characterized in that it comprises the following steps: weighing and pulverizing raw materials according to any one of claims 1 to 2, stirring and heating to 60° C., and continuing to stir, cooling; adjusting the pH value to 7 to 8 to obtain the tobacco leaf fertilizer. 4. The preparation method of tobacco foliage fertilizer according to claim 3, characterized in that, the step of stirring and heating to 60°C is specifically: putting the pulverized raw material into a high-shear reactor, Stir at a constant speed at a speed of rpm, and heat to 60°C. 5 . The method for preparing tobacco leaf fertilizer according to claim 3 , wherein the step of adjusting the pH value from 7 to 8 is specifically: adding citric acid to the cooled material to adjust the pH value. 6 .