CN106187457A - A method for preparing amino acid foliar fertilizer by utilizing fishmeal - Google Patents

Abstract

The invention discloses a method for preparing amino acid foliar fertilizer by using fish meal, which comprises the steps of mixing amino acid liquid obtained by hydrolyzing the fish meal with medium trace element nutrient solution, rare earth element nutrient solution and chelating solution, carrying out chelating reaction, finally adding boric acid, urea, monopotassium phosphate, a synergist and an auxiliary agent, stirring uniformly, and adjusting the pH value to 5.0-6.0 to obtain the product. The preparation method disclosed by the invention is simple in process steps, strong in operability, low in requirements on multiple devices, complete in nutrient elements of the prepared leaf fertilizer, capable of reasonably regulating the metabolism in plants, good in wetting property and stability, safe, non-toxic, free of hormone and in line with the sustainable development of environmental protection and agriculture.

Description

A method for preparing amino acid foliar fertilizer by utilizing fishmeal

technical field

The invention relates to the technical field of foliar fertilizer preparation, in particular to a method for preparing amino acid foliar fertilizer by using fishmeal.

Background technique

Fish meal is an aquatic product obtained by removing oil from fish with edible value or small miscellaneous fish with no economic value. Its appearance is brown powder and has a strong fishy smell. The world's fishmeal producers mainly include Peru, Chile, Japan, Denmark, the United States, the former Soviet Union, Norway, etc. The main producers of fishmeal in China are Shandong and Zhejiang, followed by Hebei, Tianjin, Fujian, Guangxi and other provinces and cities. Its purpose is that it is rich in protein, which plays an important role in the growth and development of organisms.

In recent years, due to the serious decline of fish resources in the marine economy, the catch of low-value fish in the ocean has increased sharply, and most of the low-value fish are mostly used for processing low-cost fish meal, so the further development and utilization of low-value fish protein feed has a broad prospect.

With the rapid development of modern agricultural technology, foliar fertilization has been recognized as an auxiliary fertilization technology under normal fertilization conditions. During the growth of crops, the phenomenon of absorbing nutrients through stems and leaves (especially leaves) is the extraroot nutrition of crops. The technology of directly applying fertilizer to the surface of the vegetative body other than the root system of the crop is called root fertilization, which is generally called foliar fertilization. Fertilizers used for foliar application are called foliar fertilizers. Any nutrients that are soluble in water and can be absorbed, transferred and transformed by the stems and leaves of crops can be used as foliar fertilizers.

If fishmeal can be made into foliar fertilizer, the economic value of fishmeal will undoubtedly be improved, and the raw material source of foliar fertilizer will be broadened at the same time, which is conducive to the further application of foliar fertilizer.

Contents of the invention

The purpose of the present invention is to provide a method for preparing amino acid foliar fertilizer by using fishmeal. The method has simple process steps, strong operability, low requirements for multiple equipment, complete nutrient elements of the prepared foliar fertilizer, and can reasonably regulate metabolism in plants , good wetting performance and stability, safe, non-toxic, hormone-free, in line with the sustainable development of environmental protection and agriculture.

In order to achieve the above object, the present invention adopts the following technical solutions:

A kind of method utilizing fishmeal to prepare amino acid foliage fertilizer of the present invention comprises the following steps:

(1) Mix fishmeal with sulfuric acid and add zeolite, azeotropic hydrolysis to obtain hydrolyzate. The invention uses sulfuric acid to hydrolyze the fish meal, the sulfuric acid can be easily removed in the subsequent process, the production cost is low, and the environmental pollution is small.

(2) After cooling the hydrolyzate to room temperature, add calcium hydroxide to neutralize to pH 7.0, filter to obtain amino acid solution. Calcium hydroxide is used to neutralize sulfuric acid, and the generated calcium sulfate precipitate can be removed directly by filtration, which saves time and energy consumption, and the calcium sulfate precipitate can decolorize the amino acid solution.

(3) Mix the medium and trace element nutrient solution, the rare earth element nutrient solution, the amino acid solution and the chelating solution, adjust the pH to 5.0~6.0, then carry out the chelating reaction, and keep stirring during the reaction to obtain the reaction solution.

(4) Add boric acid, urea, potassium dihydrogen phosphate, synergists and auxiliary agents to the reaction solution, stir well and adjust the pH to 5.0~6.0 to obtain the product.

Preferably, in step (1), the mass percent concentration of sulfuric acid is 20-30%, the mass ratio of fish meal to sulfuric acid is 1:3.5-4.5, and the hydrolysis time is 6-8 hours.

Preferably, in step (3), the mass ratio of the medium and trace element nutrient solution, rare earth element nutrient solution, amino acid solution and chelating solution is (0.3-0.5): (0.1-0.3): (0.3-0.5): ( 0.1~0.3).

As preferably, the medium and trace element nutrient solution is prepared by the following method: taking the total mass of amino acid foliar fertilizer as the calculation basis, according to 1~3% calcium chloride, 0.5~1% magnesium sulfate, 0.5~1% copper sulfate, 1~2% Ferrous Sulfate, 0.5~1% Manganese Sulfate, 0.5~1% Zinc Sulfate and 0.5~1% Ammonium Molybdate. After measuring each component, dissolve each component in water.

Preferably, the rare earth element nutrient solution is prepared by the following method: taking the total mass of amino acid foliar fertilizer as the calculation basis, after measuring the components respectively according to the ratio of 0.05~0.06% lanthanum nitrate and 0.01~0.02% cerium nitrate, Dissolve each component in water.

Preferably, the chelating liquid is composed of the following components in mass percentage: 0.01-0.03% glucose-δ-lactone, 0.05-0.1% citric acid, and the balance is water. There are many kinds of chelating agents, and the chelating properties of various chelating agents are indeed very different. The present invention selects glucose-δ-lactone and citric acid as chelating agents to cooperate with amino acids, so that as many cations as possible are protected In order to enhance the stability of foliar fertilizer, it effectively solves the problem of concentrated compounding of nitrogen, phosphorus, potassium and medium and micronutrient elements, optimizes the absorption performance of leaves for nutrient elements, and improves the utilization rate of nutrients.

Preferably, in step (3), the chelation reaction temperature is 40-45°C, and the chelation time is 0.5-0.6h.

Preferably, in step (4), the addition of boric acid is 3-5% of the mass of the reaction solution, the addition of urea is 5-10% of the mass of the reaction solution, and the addition of potassium dihydrogen phosphate is the mass of the reaction solution 3~5%.

As a preference, the added amount of the synergist is 0.3-0.5% of the mass of the reaction solution, and the synergist is composed of the following components in mass percentage: 10-20% fulvic acid, 5-10% seaweed, and the balance It is bamboo vinegar. The synergist in the present invention is the key point. Compared with conventional humic acid, fulvic acid has good water solubility, high activity, strong adhesion, and is easily absorbed by plants. Seaweed greatly retains the natural activity in seaweed The components contain a large amount of non-nitrogen-containing organic matter, more than 40 kinds of mineral elements such as K, Ca, Mg, Fe, Zn, I, etc., which are unmatched by terrestrial plants, and rich in vitamins, especially seaweed polysaccharides unique to seaweed , highly unsaturated fatty acids and a variety of natural plant growth regulators, with high biological activity, can stimulate the production of non-specific active factors in plants and regulate the balance of endogenous hormones; bamboo vinegar can improve fertilizer efficiency and promote plant rhizomes growth, but also has the effect of controlling crop diseases and insect pests.

As a preference, in step (4), the amount of the auxiliary agent added is 0.05-0.1% of the mass of the reaction solution, and the auxiliary agent is composed of the following components in mass percentage: 1-3% sodium alginate, 5-10% oval Phospholipids, the balance being Tween-80. The auxiliary agent of the invention can better adhere and spread the foliar fertilizer on the leaf surface, improve the uniformity of spraying, prevent dripping, improve the wetting degree of the fertilizer liquid on the crop leaves and improve the utilization rate of the foliar fertilizer.

Therefore, the present invention has following beneficial effect:

(1) A method for preparing amino acid foliar fertilizer by using fishmeal, which optimizes the process and formula of foliar fertilizer. Reasonable regulation of plant metabolism, good wetting performance and stability, safe, non-toxic, hormone-free, in line with environmental protection and sustainable development of agriculture;

(2) Improve the economic value of fishmeal, and broaden the source of raw materials for foliar fertilizer.

detailed description

The present invention will be further described below through specific embodiments.

Example 1

(1) Mix fish meal and sulfuric acid with a mass percentage of 20% at a mass ratio of 1:4.5, add zeolite, and conduct azeotropic hydrolysis for 6 hours to obtain a hydrolyzed solution;

(2) After cooling the hydrolyzate to room temperature, add calcium hydroxide to neutralize to pH 7.0, filter to obtain amino acid solution;

(3) Mix medium and trace element nutrient solution, rare earth element nutrient solution, amino acid solution and chelating solution at a mass ratio of 0.3:0.1:0.3:0.1), adjust the pH to 5.0, and then carry out the chelation reaction. Stir continuously during the reaction, and chelate The reaction temperature was 40°C, the chelation time was 0.6h, and the reaction solution was obtained, wherein the medium and trace element nutrient solution was prepared by the following method: taking the total mass of amino acid foliar fertilizer as the calculation basis, using 1% calcium chloride, 0.5% magnesium sulfate , 0.5% copper sulfate, 1% ferrous sulfate, 0.5% manganese sulfate, 0.5% zinc sulfate and 0.5% ammonium molybdate. After measuring each component, dissolve each component in water; rare earth element nutrient solution It is prepared by the following method: taking the total mass of amino acid foliar fertilizer as the calculation basis, measuring each component respectively according to the ratio of 0.05% lanthanum nitrate and 0.01% cerium nitrate, and then dissolving each component in water; It consists of the following components in mass percentage: 0.01% glucose-delta-lactone, 0.05% citric acid, and the balance is water.

(4) Based on the mass of the reaction solution, add 3% boric acid, 5% urea, 3% potassium dihydrogen phosphate, 0.3% synergist and 0.05% auxiliary agent to the reaction solution, stir well and adjust the pH is 5.0, the product is obtained, wherein the synergist is composed of the following components by mass percentage: 10% fulvic acid, 5% seaweed, and the balance is bamboo vinegar, and the auxiliary agent is composed of the following components by mass percentage: 1 % sodium alginate, 5% lecithin, and the balance is Tween-80.

Example 2

(1) Mix fish meal and sulfuric acid with a mass percentage of 30% at a mass ratio of 1:3.5, add zeolite, and conduct azeotropic hydrolysis for 8 hours to obtain a hydrolyzed solution;

(2) After cooling the hydrolyzate to room temperature, add calcium hydroxide to neutralize to pH 7.0, filter to obtain amino acid solution;

(3) Mix the medium and trace element nutrient solution, rare earth element nutrient solution, amino acid solution and chelating solution at a mass ratio of 0.5: 0.3: 0.5: 0.3, adjust the pH to 6.0, and then carry out the chelation reaction. Stir continuously during the reaction, and chelate The reaction temperature was 45°C, and the chelation time was 0.5h to obtain a reaction solution, wherein the medium and trace element nutrient solution was obtained by the following method: taking the total mass of amino acid foliar fertilizer as the calculation basis, according to 3% calcium chloride, 1% magnesium sulfate, 1% copper sulfate, 2% ferrous sulfate, 1% manganese sulfate, 1% zinc sulfate and 1% ammonium molybdate are used to measure each component, then dissolve each component in water; the rare earth element nutrient solution passes through The following method is obtained: taking the total mass of amino acid foliar fertilizer as the calculation basis, after measuring each component respectively by the proportioning ratio of 0.06% lanthanum nitrate and 0.02% cerium nitrate, each component is dissolved in water and gets final product; The components are composed of the following mass percentages: 0.03% glucose-δ-lactone, 0.1% citric acid, and the balance is water.

(4) Based on the mass of the reaction solution, add 5% boric acid, 10% urea, 5% potassium dihydrogen phosphate, 0.5% synergist and 0.1% auxiliary agent to the reaction solution, stir well and adjust the pH 6.0, the product is obtained, wherein the synergist is composed of the following components by mass percentage: 20% fulvic acid, 10% seaweed, and the balance is bamboo vinegar, and the auxiliary agent is composed of the following components by mass percentage: 3 % sodium alginate, 10% lecithin, and the balance is Tween-80.

Example 3

(1) Mix fishmeal and 25% sulfuric acid in a mass ratio of 1:4, add zeolite, and conduct constant boiling hydrolysis for 7 hours to obtain a hydrolyzed solution;

(2) After cooling the hydrolyzate to room temperature, add calcium hydroxide to neutralize to pH 7.0, filter to obtain amino acid solution;

(3) Mix the medium and trace element nutrient solution, rare earth element nutrient solution, amino acid solution and chelating solution at a mass ratio of 0.4:0.2:0.4:0.2, adjust the pH to 5.5, and then carry out the chelation reaction. Stir continuously during the reaction, and chelate The reaction temperature was 42°C, the chelation time was 0.55h, and the reaction solution was obtained, wherein the medium and trace element nutrient solution was obtained by the following method: taking the total mass of amino acid foliar fertilizer as the calculation basis, according to 2% calcium chloride, 0.7% magnesium sulfate, 0.7% copper sulfate, 1.5% ferrous sulfate, 0.8% manganese sulfate, 0.8% zinc sulfate and 0.7% ammonium molybdate. The following method is obtained: taking the total mass of amino acid foliar fertilizer as the calculation basis, after measuring each component respectively by the proportioning ratio of 0.055% lanthanum nitrate and 0.015% cerium nitrate, each component is dissolved in water and gets final product; The components are composed of the following mass percentages: 0.02% glucose-delta-lactone, 0.07% citric acid, and the balance is water.

(4) Based on the mass of the reaction solution, add 4% boric acid, 7% urea, 4% potassium dihydrogen phosphate, 0.4% synergist and 0.08% auxiliary agent to the reaction solution, stir well and adjust the pH 5.5, the product is obtained, wherein the synergist is composed of the following components by mass percentage: 15% fulvic acid, 7% seaweed, and the balance is bamboo vinegar, and the auxiliary agent is composed of the following components by mass percentage: 2 % sodium alginate, 8% lecithin, and the balance is Tween-80.

The foliar fertilizer prepared by the present invention has complete nutrient elements, fully complies with the national standard for amino acid foliar fertilizer (GB/T 17419-1998), and is safe, non-toxic, and hormone-free, and can fully balance crop nutrition and reasonably regulate plant body nutrients. Metabolism is a high-quality foliar fertilizer that is fully nutritious, fully water-soluble, and pollution-free. It is suitable for various vegetables, rice and other crops and plants.

The above-described embodiment is only a preferred solution of the present invention, and does not limit the present invention in any form. There are other variations and modifications on the premise of not exceeding the technical solution described in the claims.

Claims (10)

1. a method utilizing fishmeal to prepare amino acid foliar fertilizer, is characterized in that, comprises the following steps: (1) Mix fish meal with sulfuric acid and add zeolite, azeotropic hydrolysis to obtain hydrolyzate; (2) After cooling the hydrolyzate to room temperature, add calcium hydroxide to neutralize to pH 7.0, filter to obtain amino acid solution; (3) Mix the medium and trace element nutrient solution, rare earth element nutrient solution, amino acid solution and chelating solution, adjust the pH to 5.0~6.0, then carry out the chelating reaction, and keep stirring during the reaction to obtain the reaction solution; (4) Add boric acid, urea, potassium dihydrogen phosphate, synergists and auxiliary agents to the reaction solution, stir well and adjust the pH to 5.0~6.0 to obtain the product. 2. A method for preparing amino acid foliar fertilizer from fishmeal according to claim 1, characterized in that, in step (1), the mass percent concentration of sulfuric acid is 20-30%, and the mass ratio of fishmeal to sulfuric acid is 1 : 3.5~4.5, hydrolysis time 6~8h. 3. A method for preparing amino acid foliar fertilizer from fishmeal according to claim 1, characterized in that in step (3), the medium and trace element nutrient solution, rare earth element nutrient solution, amino acid solution and chelating solution The mass ratio is (0.3~0.5): (0.1~0.3): (0.3~0.5): (0.1~0.3). 4. a kind of method utilizing fishmeal to prepare amino acid foliage fertilizer according to claim 3 is characterized in that, described medium and trace element nutrient solution is obtained by following method: take amino acid foliage fertilizer total mass as calculation basis, press 1~3% calcium chloride, 0.5~1% magnesium sulfate, 0.5~1% copper sulfate, 1~2% ferrous sulfate, 0.5~1% manganese sulfate, 0.5~1% zinc sulfate and 0.5~1% molybdic acid After measuring each component according to the ratio of ammonium, dissolve each component in water. 5. A kind of method utilizing fishmeal to prepare amino acid foliage fertilizer according to claim 3, is characterized in that, described rare earth element nutrient solution is obtained by following method: take amino acid foliage fertilizer total mass as calculation basis, by 0.05 The ratio of ~0.06% lanthanum nitrate and 0.01~0.02% cerium nitrate is measured separately and then dissolved in water. 6. a kind of method utilizing fishmeal to prepare amino acid foliar fertilizer according to claim 3 is characterized in that, described chelating liquid is made up of the component of following mass percent: 0.01～0.03% glucose-delta-lactone, 0.05~0.1% citric acid, the balance is water. 7. A method for preparing amino acid foliar fertilizer by using fishmeal according to claim 1, characterized in that, in step (3), the chelation reaction temperature is 40-45°C, and the chelation time is 0.5-0.6h. 8. A kind of method utilizing fishmeal to prepare amino acid foliar fertilizer according to claim 1, is characterized in that, in step (4), the addition amount of described boric acid is 3～5% of reaction solution mass, the addition of urea The amount is 5-10% of the mass of the reaction solution, and the addition of potassium dihydrogen phosphate is 3-5% of the mass of the reaction solution. 9. A method for preparing amino acid foliar fertilizer from fishmeal according to claim 1, characterized in that, in step (4), the amount of the synergist added is 0.3-0.5% of the mass of the reaction solution, increasing The efficacy agent is composed of the following components in mass percentage: 10-20% fulvic acid, 5-10% seaweed, and the balance is bamboo vinegar. 10. A method for preparing amino acid foliar fertilizer from fishmeal according to claim 1, characterized in that, in step (4), the amount of the auxiliary agent added is 0.05-0.1% of the mass of the reaction solution, and the auxiliary agent It is composed of the following components by mass percentage: 1~3% sodium alginate, 5~10% lecithin, and the balance is Tween-80.