Application method of foliar fertilizer for improving nitrogen storage capacity of tea trees

An application method and foliar fertilizer technology, applied in the direction of fertilization method, nitrogen fertilizer, application, etc., can solve the problems of agricultural non-point source pollution, excessive fertilization, ecological environment, etc., to improve storage nitrogen, reduce application amount, ensure quality and quality effect

Active Publication Date: 2020-02-11
TEA RES INST CHINESE ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For a long time, in order to increase tea production, the amount of nitrogen fertilizer used in tea gardens has increased year by year, so that excessive fertilization has caused serious ecological environment, agricultural non-point source pollution and other problems

Method used

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  • Application method of foliar fertilizer for improving nitrogen storage capacity of tea trees
  • Application method of foliar fertilizer for improving nitrogen storage capacity of tea trees
  • Application method of foliar fertilizer for improving nitrogen storage capacity of tea trees

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A kind of preparation method of the foliage fertilizer that improves tea tree storage nitrogen, specifically comprises the following steps:

[0045] S1. Dissolution of protein: mix dry spirulina powder with water at a mass ratio of 1:50 for rehydration, heat to 50°C, stir at 500r / min, add 0.2wt% sodium carbonate to adjust the pH to 9, colloid Grinding for fine grinding, the temperature is 50°C, 300kg / cm 2 Homogenization for 2 minutes;

[0046] S2. Impurity removal: After the homogeneous solution obtained in step S1 was precipitated for 3 hours, it was centrifuged at 3000r / min to remove solid impurities;

[0047] S3. Precipitate protein: add 1mol / L HCl solution to the liquid in step S2, adjust the pH to about 4.5, produce a large amount of protein precipitation, filter, and collect the solid;

[0048]S4. Redissolving: the solid obtained in step S3 is added to a NaOH solution with a pH of 9, and the protein is redissolved;

[0049] S5. Enzymolysis: Add alkaline proteas...

Embodiment 2

[0051] A kind of preparation method of the foliage fertilizer that improves tea tree storage nitrogen, specifically comprises the following steps:

[0052] S1. Wall breaking and dissolving of protein: mix dry spirulina powder and water at a mass ratio of 1:100 for rehydration, heat to 70°C, stir at 700r / min, add 0.5wt% sodium carbonate to adjust the pH to 10, colloid Grinding for fine grinding, the temperature is 70°C, 300kg / cm 2 Homogenizing for 5 minutes;

[0053] S2. Impurity removal: After the homogeneous solution obtained in step S1 is precipitated for 3-5h, centrifuged at 3000-5000r / min to remove solid impurities;

[0054] S3. Precipitate protein: add 2mol / L HCl solution to the liquid in step S2, adjust the pH to about 4.5, produce a large amount of protein precipitation, filter, and collect the solid;

[0055] S4. Redissolving: the solid obtained in step S3 is added to a NaOH solution with a pH of 10, and the protein is redissolved;

[0056] S5. Enzymolysis: Add alka...

Embodiment 3

[0058] A kind of preparation method of the foliage fertilizer that improves tea tree storage nitrogen, specifically comprises the following steps:

[0059] S1. Wall breaking and dissolving of protein: Mix spirulina dry powder and water at a mass ratio of 1:75 for rehydration, heat to 60°C, stir at 600r / min, add 0.35wt% sodium carbonate to adjust the pH to 9.5, colloid Grinding for fine grinding, the temperature is 60°C, 300kg / cm 2 Homogenization for 3 minutes;

[0060] S2. Impurity removal: After the homogeneous solution obtained in step S1 is precipitated for 4 hours, it is centrifuged at 4000r / min to remove solid impurities;

[0061] S3. Precipitate protein: add 1.5mol / L HCl solution to the liquid in step S2, adjust the pH to about 4.5, produce a large amount of protein precipitation, filter, and collect the solid;

[0062] S4. Redissolving: the solid obtained in step S3 is added to a NaOH solution with a pH of 9.5, and the protein is redissolved;

[0063] S5. Enzymolysis...

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Abstract

The invention provides a preparation method of a foliar fertilizer for improving the nitrogen storage capacity of tea trees. The preparation method comprises the following steps: rehydration of dry spirulina powder, extraction, grinding with a colloid mill, homogenization, centrifugal separation, regulation of the pH value of the obtained solution to precipitate proteins, filtration for obtaininga solid that is spirulina proteins, addition of NaOH for neutralization, redissolving of the proteins, addition of a protease for enzymolysis, and enzyme deactivation for obtaining an amino acid solution that is the foliar fertilizer for improving the nitrogen storage capacity of tea trees. Compared with auxin foliar fertilizers commonly used in traditional tea gardens, the amino acid foliar fertilizer prepared by the method of the invention has the advantages of provision of nutrients and harmlessness to the self growth state of the tea trees. Tree foliage nutrition is supplemented to reducethe application amount of soil fertilizers in order to achieve the purposes of reducing fertilizers and improving the effect, and the foliar fertilizer can supplement a part of tree nutrients when theapplication amount of the soil nitrogen fertilizer is reduced by 25% (or organisms replace 25%), thereby the foliar fertilizer facilitates improvement of the yield and quality of tea leaves.

Description

technical field [0001] The invention relates to the technical field of foliar fertilizers, in particular to a foliar fertilizer for improving tea tree nitrogen storage and an application method. Background technique [0002] Plant leaves, like roots, can absorb and utilize external nutrients, and their absorption of nutrients is mainly through the active absorption of leaf stomata, epidermal hydrophilic pores, and plasmodesmata. Therefore, leaves are the most important extraroot vegetative organs of plants, and foliar nutrition refers to the absorption and utilization of various nutrients by plants through the surface of leaves. As a typical leaf crop, tea tree, mineral nutrition, especially nitrogen nutrition, plays a vital role in its growth and development, physiological and biochemical metabolic processes, and the formation of tea quality (taste, aroma, etc.). For a long time, in order to increase tea production, the amount of nitrogen fertilizer used in tea gardens has...

Claims

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Application Information

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IPC IPC(8): C05C11/00C05G5/23A01C21/00
CPCC05C11/00A01C21/005Y02P60/21
Inventor 刘美雅张群峰倪康石元值马立峰伊晓云汤丹丹阮建云
Owner TEA RES INST CHINESE ACAD OF AGRI SCI
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