CN114014720A - Fertilizer special for cyperus esculentus and preparation method thereof - Google Patents

Abstract

The invention provides a fertilizer special for cyperus esculentus, which comprises the following components: water, ammonium metavanadate, modified ammonium molybdate, ammonium tungstate, a chelating agent, a microbial agent and a decomposed organic fertilizer; according to the fertilizer special for cyperus esculentus, the modified ammonium molybdate modified by dopamine is introduced, so that the nitrogen element release efficiency of the fertilizer is remarkably improved, and after the fertilizer is applied to soil, the dopamine can promote nitrogen in ammonium salt to be rapidly released, so that more nitrogen can be absorbed by cyperus esculentus root systems, and the growth of cyperus esculentus is promoted.

Description

Fertilizer special for cyperus esculentus and preparation method thereof

Technical Field

The invention relates to the field of fertilizer production, and particularly relates to a special fertilizer for cyperus esculentus and a preparation method thereof.

Background

The cyperus esculentus is also called cyperus esculentus, is foreign and called underground walnut or underground almond, is originally produced in Africa and Mediterranean regions, belongs to cyperaceae perennial herbaceous plants, is cultivated as annual crops in production, and is a novel multipurpose crop of oil and grain with high quality, high yield and high comprehensive utilization value. The cost for planting cyperus esculentus is low, the yield is high, the yield per mu is over 500kg generally, the oil yield is 30-40 percent generally, the oil color is clear and reddish, no precipitate is generated, the fragrance is strong, no peculiar smell is generated, the cyperus esculentus is rich in protein and amino acid, the nutritive value is extremely high, the cyperus esculentus is top-grade edible oil, and the quality is superior to that of rapeseed oil, sesame oil and the like, so the cyperus esculentus is called as 'king of oil plants'. The cyperus esculentus can be processed into food for sale except for oil extraction, can be eaten raw, fried and fried, has fragrant and sweet taste, and is called as underground Chinese chestnut and underground walnut. The cake meal after oil extraction is slightly sweet and fragrant, can be processed for making cakes, making soy sauce and vinegar, and also can be used for extracting high-quality starch, sugar, cellulose and wine brewing, and the remaining powder residue is a good concentrated feed for the breeding industry; the stem leaves of cyperus esculentus are slender and tough, and are ideal raw materials for weaving handicrafts.

The fertilizer, especially the nitrogen fertilizer, cannot be separated in the growth process of the cyperus esculentus, but the nitrogen fertilizer commonly used at present has low nitrogen element release efficiency, so that the root system of the plant cannot be well fixed with nitrogen for absorption.

Disclosure of Invention

The invention provides a fertilizer special for cyperus esculentus and a preparation method thereof, which can effectively solve the problems.

The invention provides a fertilizer special for cyperus esculentus, which comprises the following components: water, ammonium metavanadate, modified ammonium molybdate, ammonium tungstate, a chelating agent, a microbial agent and a decomposed organic fertilizer.

The invention also provides a preparation method of the fertilizer special for cyperus esculentus, which comprises the following steps:

s1, sequentially adding ammonium metavanadate, modified ammonium molybdate and ammonium tungstate into water, and stirring to obtain a first mixture;

s2, adding a chelating agent into the first mixture, and stirring to obtain a second mixture;

s3, adding a microbial agent into the third mixture, and stirring to obtain a third mixture;

and S4, spraying the third mixture into the decomposed organic fertilizer, and stirring to obtain the organic fertilizer.

The technical scheme of the embodiment of the invention at least has the following advantages and beneficial effects:

according to the fertilizer special for cyperus esculentus, the modified ammonium molybdate modified by dopamine is introduced, so that the nitrogen element release efficiency of the fertilizer is remarkably improved, and after the fertilizer is applied to soil, the dopamine can promote nitrogen in ammonium salt to be rapidly released, so that more nitrogen can be absorbed by cyperus esculentus root systems, and the growth of cyperus esculentus is promoted.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.

The specific embodiment provides a fertilizer special for cyperus esculentus, which comprises the following components: water, ammonium metavanadate, modified ammonium molybdate, ammonium tungstate, a chelating agent, a microbial agent and a decomposed organic fertilizer.

Further, based on 1000 parts by weight of water, 1-2 parts by weight of ammonium metavanadate, 10-20 parts by weight of modified ammonium molybdate, 5-15 parts by weight of ammonium tungstate, 6-8 parts by weight of chelating agent, 10-12 parts by weight of microbial agent and 150 parts by weight of decomposed organic fertilizer.

Further, by weight, based on 1000 parts by weight of water, 1.25 parts by weight of ammonium metavanadate, 15 parts by weight of modified ammonium molybdate, 10 parts by weight of ammonium tungstate, 7 parts by weight of a chelating agent, 11 parts by weight of a microbial agent, and 120 parts by weight of a decomposed organic fertilizer.

Further, the chelating agent comprises one or more of citric acid, malic acid, ascorbic acid and amino acid.

Further, the chelating agent is citric acid.

Further, the microbial agent comprises one or more of a rhizobium microbial agent, a nitrogen-fixing microbial agent, a phosphate-solubilizing microbial agent and a silicate microbial agent.

Further, the microbial agent is a nitrogen-fixing microbial agent.

Further, the preparation method of the modified ammonium molybdate comprises the following steps:

dissolving ammonium molybdate in water, adjusting pH to 10-11, adding starch and dopamine into water, heating to 40-50 deg.C, stirring for 30 min, naturally cooling, freeze drying, and pulverizing.

Further, by mass ratio, water: ammonium molybdate: starch: 10 (5-7) and (2-4): (0.5-1).

The invention also provides a preparation method of the fertilizer special for cyperus esculentus, which comprises the following steps:

s1, sequentially adding ammonium metavanadate, modified ammonium molybdate and ammonium tungstate into water, and stirring to obtain a first mixture;

s2, adding a chelating agent into the first mixture, and stirring to obtain a second mixture;

s3, adding a microbial agent into the third mixture, and stirring to obtain a third mixture;

and S4, spraying the third mixture into the decomposed organic fertilizer, and stirring to obtain the organic fertilizer.

Preparation example

This preparation was used to prepare modified ammonium molybdate.

Dissolving 6 g of ammonium molybdate in 10 g of water, adjusting the pH value to 10, respectively adding 3 g of starch and 0.7 g of dopamine into the water, heating to 45 ℃, stirring for 30 minutes, naturally cooling, freeze-drying and crushing to obtain the ammonium molybdate powder.

Example 1

S1, sequentially adding 1.25 parts by weight of ammonium metavanadate, 15 parts by weight of modified ammonium molybdate and 10 parts by weight of ammonium tungstate into 1000 parts by weight of water, and stirring to obtain a first mixture;

s2, adding 7 parts by weight of citric acid into the first mixture, and stirring to obtain a second mixture;

s3, adding a nitrogen-fixing bacterium agent into the third mixture, and stirring to obtain a third mixture;

s4, spraying the third mixture into 120 parts by weight of decomposed organic fertilizer, and stirring to obtain the special fertilizer A1 for the cyperus esculentus.

Example 2

S1, sequentially adding 1 part by weight of ammonium metavanadate, 10 parts by weight of modified ammonium molybdate and 5 parts by weight of ammonium tungstate into 1000 parts by weight of water, and stirring to obtain a first mixture;

s2, adding 6 parts by weight of citric acid into the first mixture, and stirring to obtain a second mixture;

s3, adding a nitrogen-fixing bacterium agent into the third mixture, and stirring to obtain a third mixture;

s4, spraying the third mixture into 100 parts by weight of decomposed organic fertilizer, and stirring to obtain the special fertilizer A2 for the cyperus esculentus.

Example 3

S1, sequentially adding 2 parts by weight of ammonium metavanadate, 20 parts by weight of modified ammonium molybdate and 15 parts by weight of ammonium tungstate into 1000 parts by weight of water, and stirring to obtain a first mixture;

s2, adding 8 parts by weight of citric acid into the first mixture, and stirring to obtain a second mixture;

s3, adding a nitrogen-fixing bacterium agent into the third mixture, and stirring to obtain a third mixture;

s4, spraying the third mixture into 150 parts by weight of decomposed organic fertilizer, and stirring to obtain the special fertilizer A3 for cyperus esculentus.

Examples of the experiments

The cyperus esculentus special-purpose fertilizers A1, A2 and A3 prepared in the three examples are respectively soaked in water at 25 ℃, the nitrogen release rates of the cyperus esculentus special-purpose fertilizers A1, A2 and A3 are tested for 24 hours and 28 days, and the test data are shown in the following table.

TABLE 1 Nitrogen Release Rate of Cyperus esculentus Special-purpose Fertilizer

Experimental group	24 hours nitrogen release rate	28 days nitrogen release rate
			A1	18％	78％
A2	16％	76％
			A3	17％	76％

As can be seen from the data in Table 1, the 24-hour nitrogen release rate of the fertilizer special for cyperus esculentus prepared by the method can reach more than 15%, and the 28-day nitrogen release rate can reach more than 75%.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The fertilizer special for cyperus esculentus is characterized by comprising the following components: water, ammonium metavanadate, modified ammonium molybdate, ammonium tungstate, a chelating agent, a microbial agent and a decomposed organic fertilizer.

2. The fertilizer special for cyperus esculentus as claimed in claim 1, wherein the weight parts of ammonium metavanadate, modified ammonium molybdate, ammonium tungstate, chelating agent, microbial agent and decomposed organic fertilizer are respectively 1-2, 10-20, 5-15, 6-8, 10-12 and 150, respectively, based on 1000 parts by weight of water.

3. The fertilizer special for cyperus esculentus according to claim 2, wherein the weight parts of ammonium metavanadate, modified ammonium molybdate and ammonium tungstate are respectively 1.25, 15, 10, 7 and 11 parts of chelating agent, 11 and 120 parts of decomposed organic fertilizer, based on 1000 parts of water.

4. The fertilizer special for cyperus esculentus according to claim 1, wherein the chelating agent comprises one or more of citric acid, malic acid, ascorbic acid and amino acid.

5. The fertilizer special for cyperus esculentus according to claim 4, wherein the chelating agent is citric acid.

6. The fertilizer special for cyperus esculentus as claimed in claim 1, wherein the microbial agent comprises one or more of rhizobia microbial agent, azotobacter microbial agent, phosphate-solubilizing microbial agent and silicate microbial agent.

7. The fertilizer special for cyperus esculentus according to claim 6, wherein the microbial agent is a azotobacter agent.

8. The fertilizer special for cyperus esculentus according to claim 1, wherein the preparation method of the modified ammonium molybdate comprises the following steps:

dissolving ammonium molybdate in water, adjusting pH to 10-11, adding starch and dopamine into water, heating to 40-50 deg.C, stirring for 30 min, naturally cooling, freeze drying, and pulverizing.

9. The fertilizer special for cyperus esculentus according to claim 8, wherein the mass ratio of water: ammonium molybdate: starch: 10 (5-7) and (2-4): (0.5-1).

10. The method for preparing the fertilizer special for cyperus esculentus as claimed in any one of claims 1 to 9, which comprises the following steps:

s1, sequentially adding ammonium metavanadate, modified ammonium molybdate and ammonium tungstate into water, and stirring to obtain a first mixture;

s2, adding a chelating agent into the first mixture, and stirring to obtain a second mixture;

s3, adding a microbial agent into the third mixture, and stirring to obtain a third mixture;

and S4, spraying the third mixture into the decomposed organic fertilizer, and stirring to obtain the organic fertilizer.