Special targeted active foliage spray liquid fertilizer for oilseed rape as well as preparation method and use method of special targeted active foliage spray liquid fertilizer

Abstract

The invention provides a targeted active foliage spray liquid fertilizer special for oilseed rape, and a preparation method and a use method thereof, and belongs to the technical field of fertilizers. The targeted active foliage spray liquid fertilizer is prepared from the following raw materials in parts by weight: 9000 parts of corn steep liquor, 500 parts of edible lard, 500 parts of rapeseed meal, 100 parts of monopotassium phosphate, 250 parts of urea and 60 parts of agricultural baking soda. The fertilizer comprises the following components in parts by weight: a microbial agent; the microbial agent is prepared from, by weight, 20 parts of bacillus subtilis microbial agent, 10 parts of actinomycetes microbial agent, 20 parts of trichoderma harzianum microbial agent and 50 parts of photosynthetic bacteria liquid. According to the method, the erucic acid component of the existing low-erucic acid (the erucic acid content is less than 3%) rape variety can be gradually converted into other fatty acids in the whole growth period of the rape, and the effect that the pressed rapeseed oil does not contain the erucic acid component after the rape is ripe and harvested is realized.

Description

Technical Field

[0001] The invention belongs to the technical field of fertilizers, and in particular relates to a targeted active foliage spraying liquid fertilizer special for low-erucic acid rapeseed, and a preparation method and a use method thereof. Background Art

[0002] During the growth of low-erucic acid rapeseed, the erucic acid content of the rapeseed oil after harvest differs significantly from the erucic acid content listed in the nationally approved seed due to various factors, including soil environmental factors in the planting area, the influence of surrounding ecological diversity, such as the planting of multiple rapeseed varieties with different erucic acid content in the same area, wind factors, and pollination by bees and various spring insects during flowering. Erucic acid is a component of edible oil that is detrimental to human health. Long-term consumption can easily lead to thickening of blood vessel walls and increase the risk of cardiovascular and cerebrovascular diseases. Reducing and eliminating erucic acid in rapeseed has become a key technical research goal for scientific research institutions in the global rapeseed industry. The application of green production technologies to convert erucic acid in rapeseed during its growth period into other unsaturated fatty acids that are beneficial to the human body, thereby improving the quality and health of rapeseed oil pressed from rapeseed grains, has become a key technical node in the production of green and healthy oil. Summary of the Invention

[0003] The present invention addresses the following technical problems: To overcome the existing problems, a targeted active foliar spray liquid fertilizer specifically for low-erucic acid rapeseed is provided, along with its preparation and use methods. This fertilizer can gradually convert the erucic acid content of existing low-erucic acid rapeseed varieties (erucic acid content <3%) into other fatty acids throughout the rapeseed's growth period, resulting in erucic acid-free rapeseed oil after harvest.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is:

[0005] The targeted active foliar spray liquid fertilizer comprises the following raw materials in parts by weight: 8,000 to 10,000 parts of corn steep liquor, 400 to 600 parts of edible lard, 400 to 600 parts of rapeseed meal, 80 to 120 parts of potassium dihydrogen phosphate, 200 to 300 parts of urea, and 150 to 250 parts of agricultural baking soda;

[0006] The invention comprises the following microbial agents in parts by weight: 15 to 30 parts of Bacillus subtilis agent, 5 to 15 parts of actinomycete agent, 15 to 30 parts of Trichoderma harzianum agent and 40 to 60 parts of photosynthetic bacteria liquid.

[0007] A method for preparing a targeted active foliar spray liquid fertilizer specifically for rapeseed comprises the following steps:

[0008] Step 1): weighing the raw materials and microbial agents according to the components of the targeted active foliar spray liquid fertilizer;

[0009] Step 2): Spread the rapeseed meal powder, add edible lard, and mix evenly manually;

[0010] Step 3): adding Bacillus subtilis, actinomycetes, and Trichoderma harzianum to the rapeseed meal in sequence and mixing evenly;

[0011] Step 4): Put the mixed rapeseed meal into a white translucent plastic container;

[0012] Step 5): Add potassium dihydrogen phosphate into a white translucent plastic container;

[0013] Step 6): Add urea to a white translucent plastic container;

[0014] Step 7): Pour the corn pulp into a white light-transmitting container;

[0015] Step 8): Add the photosynthetic bacteria solution into a white translucent plastic container and shake it evenly;

[0016] Step 9): Seal the plastic container and leave it in the open air at room temperature for more than 12 months to form a room temperature fermentation liquid;

[0017] Step 10): When the free amino acid content in the fermentation broth is determined to be undetectable, the preparation of the targeted active nutrient mother solution is completed, and the pH value range is between 5 and 8;

[0018] Step 11): Divide the contents into 1500 portions each, add 60 portions of agricultural baking soda and seal the container.

[0019] The above steps are carried out at room temperature. The finished product of targeted active foliar spray liquid fertilizer is packaged according to 1500 ml per portion and stored in a cool place at room temperature for later use.

[0020] A method for using a targeted active foliar spray liquid fertilizer specifically for rapeseed is as follows: the targeted active foliar spray liquid fertilizer is used in a total amount of 1500 ml per mu of land, divided into three equal parts, and diluted 30-40 times with clean water or deionized water during the rapeseed's spring moss growth period, the rapeseed's late flowering period, and the rapeseed's green fruit period. The fertilizer is sprayed on the leaves once with an electric sprayer on a sunny day with good sunshine.

[0021] Advantages of the present invention compared with the prior art: Advantages of the present invention compared with the prior art:

[0022] In targeted active foliar spray liquid fertilizers, a variety of microorganisms fully hydrolyze animal and plant proteins and fat raw materials into small-molecule amino acids, and then transform the amino acids through biochemical processes such as deamination and decarboxylation, forming extremely rich active microbial metabolites and fatty acid metabolic enzyme components. Targeted active foliar spray liquid fertilizers are sprayed on the leaves at different stages of the rapeseed growth period. After the fatty acid metabolic enzyme components are absorbed by the leaf cells, they participate in the metabolic process within the rapeseed plant cells, thereby achieving the complete conversion of rapeseed erucic acid (docosaenoic acid) to docosadienoic acid. This is an extremely complex biochemical process and metabolic regulation mechanism. Other components of the targeted active foliar spray liquid fertilizer effectively improve the foliar photosynthetic efficiency of rapeseed crops, play an important role in increasing the number of rapeseed pods and the weight of thousands of pods, and achieve a significant effect of increasing rapeseed yields.

[0023] This program targets the production of active foliar spray liquid fertilizer products and adopts anaerobic fermentation technology. It is safe, environmentally friendly, and green and harmless. Through the biochemical action of fatty acid metabolizing enzymes in the fertilizer product, the erucic acid component of rapeseed during the growth period is completely converted into docosadienoic acid, which is beneficial to the human body. This achieves the unique effect of removing erucic acid components that are harmful to the human body in rapeseed, which is a major step forward in improving the production technology of my country's healthy oil industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a diagram of the test field in the embodiment of the present invention. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1 , details the embodiments of the present invention.

[0027] A targeted active foliar spray liquid fertilizer specifically for rapeseed, comprising the following raw materials in parts by weight: 9000 parts of corn steep liquor (waste residue from starch processing enterprises, referred to as corn steep liquor in this embodiment), 500 parts of edible lard (edible lard is purchased in finished packaging and heated and melted to obtain the edible lard in this embodiment), 500 parts of rapeseed meal (crushed rapeseed meal, referred to as rapeseed meal in this embodiment), 100 parts of potassium dihydrogen phosphate, 250 parts of urea, and 180 parts of agricultural baking soda;

[0028] The invention also comprises the following microbial agents in parts by weight: 20 parts of Bacillus subtilis agent, 10 parts of actinomycete agent, 20 parts of Trichoderma harzianum agent and 50 parts of photosynthetic bacteria liquid.

[0029] A method for preparing a targeted active foliar spray liquid fertilizer specifically for rapeseed comprises the following steps:

[0030] Step 1); weighing the raw materials and microbial agents according to the components of the targeted active foliar spray liquid fertilizer;

[0031] Step 2); Spread the rapeseed meal powder, add edible lard, and mix evenly manually;

[0032] Step 3); add Bacillus subtilis agent, actinomycete agent, and Trichoderma harzianum agent to the rapeseed meal in sequence and mix evenly;

[0033] Step 4); put the mixed rapeseed meal into a 10L white translucent plastic container;

[0034] Step 5): Add potassium dihydrogen phosphate into a white translucent plastic container;

[0035] Step 6); add urea to a white translucent plastic container;

[0036] Step 7): Pour the corn pulp into a white light-transmitting container;

[0037] Step 8): Add the photosynthetic bacteria solution into a white translucent plastic container and shake it evenly;

[0038] Step 9): Seal the plastic container and leave it in the open air at room temperature for more than 12 months to form a room temperature fermentation liquid;

[0039] Step 10); when the free amino acid content in the fermentation broth is not measured, the preparation of the targeted active nutrient mother solution is completed, and the pH value range is between 5-8;

[0040] Step 11): Divide the contents into 1500 portions each, add 60 portions of agricultural baking soda and seal the container.

[0041] The above steps are carried out at room temperature. The finished product of targeted active foliar spray liquid fertilizer is packaged according to 1500 ml per portion and stored in a cool place at room temperature for later use.

[0042] Method of using the targeted active foliar spray liquid fertilizer for rapeseed: The targeted active foliar spray liquid fertilizer is used in a total amount of 1500 ml per mu (667 square meters) and divided into three equal parts;

[0043] During the rapeseed's spring growth period (usually in early March in northern my country), dilute it 30-40 times with daily water, and spray it on the leaves with an electric sprayer on a sunny day.

[0044] During the late rapeseed flowering period (usually mid-April in northern my country), dilute the oilseed oil 30-40 times with daily water and spray it on the leaves with an electric sprayer on a sunny day.

[0045] During the rapeseed green fruit period (generally in early May in northern my country), dilute the solution 30-40 times with daily water and spray it on the leaves with an electric sprayer on a sunny day.

[0046] In targeted active foliar spray liquid fertilizers, a variety of microorganisms fully hydrolyze animal and plant proteins and fat raw materials into small-molecule amino acids, and then transform the amino acids through biochemical processes such as deamination and decarboxylation, forming extremely rich active microbial metabolites and fatty acid metabolic enzyme components. Targeted active foliar spray liquid fertilizers are sprayed on the leaves at different stages of the rapeseed growth period. After the fatty acid metabolic enzyme components are absorbed by the leaf cells, they participate in the metabolic process within the rapeseed plant cells, thereby achieving the complete conversion of rapeseed erucic acid (docosaenoic acid) to docosadienoic acid. This is an extremely complex biochemical process and metabolic regulation mechanism. Other components of the targeted active foliar spray liquid fertilizer effectively improve the foliar photosynthetic efficiency of rapeseed crops, play an important role in increasing the number of rapeseed pods and the weight of thousands of pods, and achieve a significant effect of increasing rapeseed yields.

[0047] The production of the targeted active foliar spray liquid fertilizer product of the present invention adopts an anaerobic fermentation process, and is characterized by production safety, environmental friendliness, and greenness. Through the biochemical action of the fatty acid metabolizing enzyme in the fertilizer product, the erucic acid component of rapeseed during the growth period is completely converted into docosadienoic acid that is beneficial to the human body, achieving the unique effect of removing the erucic acid component in rapeseed that is harmful to the human body.

[0048] In this embodiment, the production test of the foliar spraying targeted active foliar spray fertilizer product of the 2024 Qinyou 188 low-erucic acid rapeseed variety is taken as an example.

[0049] This experiment set up four test areas, see Figure 1 The test comparison diagram is shown. Each block is 330 square meters, with a reserved isolation zone.

[0050] 1) Control group:

[0051] Moss period (March 7, 2024): spray 10 liters of white water;

[0052] Corner grain stage (April 17, 2024): spray 10 liters of plain water;

[0053] Green fruit period (May 7, 2024): spray 10 liters of white water.

[0054] 2) Processing 1:

[0055] Moss stage (March 7, 2024): Dilute 250ml of targeted active foliar fertilizer product 40 times with 10L of water and spray once;

[0056] Corner grain stage (April 17, 2024): spray 10 liters of plain water;

[0057] Green fruit period (May 7, 2024): spray 10 liters of white water.

[0058] 3) Processing 2:

[0059] Moss stage (March 7, 2024): Dilute 250ml of targeted active foliar fertilizer product 40 times with 10L of water and spray once;

[0060] Corner grain stage (April 17, 2024): dilute 250 ml of targeted active foliar fertilizer product 40 times with 10 L of water and spray once on the leaves;

[0061] Green fruit period (May 7, 2024): spray 10 liters of white water.

[0062] 4) Processing three:

[0063] Moss stage (March 7, 2024): Dilute 250ml of targeted active foliar fertilizer product 40 times with 10L of water and spray once;

[0064] Corner grain stage (April 17, 2024): dilute 250 ml of targeted active foliar fertilizer product 40 times with 10 L of water and spray once;

[0065] Green fruit period (May 7, 2024): Dilute 250 ml of targeted active foliar spray fertilizer product 40 times with 10 L of water and spray on the leaves once.

[0066] The test results are shown in the following table:

[0067] Comparison of experimental data of Qinyou 188 low erucic acid rapeseed variety

[0068] Characteristics and classification comparison Processing 1 Process 2 Processing Three Plant height 171.67 183.24 183.97 184.63 Number of branches 31 39 42 43 Number of siliques 521 635 816 846 Number of horn grains 21 31 31 33 Thousand-grain weight 3.90g / 1,000 tablets 4.42g / 1,000 tablets 4.47g / 1000 capsules 4.57g / 1,000 tablets Erucic acid content 1.50％ 0.37％ Not detected Not detected Yield per mu 128.0kg 261.0kg 339.21kg 382.74kg

[0069] The test results show that: through the comparison of the control group and the treatment group, it is obvious that the rapeseed that was sprayed with the targeted active foliar liquid fertilizer in the moss stage, horn grain stage and green fruit stage had the lowest erucic acid content and the highest yield, achieving the effect of squeezing rapeseed oil without erucic acid.

[0070] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0071] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. Targeted active foliar spraying liquid fertilizer for rapeseed, characterized by: The targeted active foliar spray liquid fertilizer comprises the following raw materials in parts by weight: 8,000 to 10,000 parts of corn steep liquor, 400 to 600 parts of edible lard, 400 to 600 parts of rapeseed meal, 80 to 120 parts of potassium dihydrogen phosphate, 200 to 300 parts of urea, and 150 to 250 parts of agricultural baking soda; The invention comprises the following microbial agents in parts by weight: 15 to 30 parts of Bacillus subtilis agent, 5 to 15 parts of actinomycete agent, 15 to 30 parts of Trichoderma harzianum agent and 40 to 60 parts of photosynthetic bacteria liquid.

2. A method for preparing a targeted active foliar spray liquid fertilizer specifically for rapeseed, characterized in that: The following steps are involved: Step 1): weighing the raw materials and microbial agents according to the components of the targeted active foliar spray liquid fertilizer; Step 2): Spread the rapeseed meal powder, add edible lard, and mix evenly manually; Step 3): adding Bacillus subtilis, actinomycetes, and Trichoderma harzianum to the rapeseed meal in sequence and mixing evenly; Step 4): Put the mixed rapeseed meal into a white translucent plastic container; Step 5): Add potassium dihydrogen phosphate into a white translucent plastic container; Step 6): Add urea to a white translucent plastic container; Step 7): Pour the corn pulp into a white light-transmitting container; Step 8): Add the photosynthetic bacteria solution into a white translucent plastic container and shake it evenly; Step 9): Seal the plastic container and leave it in the open air at room temperature for more than 12 months to form a room temperature fermentation liquid; Step 10): When the free amino acid content in the fermentation broth is determined to be undetectable, the preparation of the targeted active nutrient mother solution is completed, and the pH value range is between 5 and 8; Step 11): Divide the contents into 1500 portions each, add 60 portions of agricultural baking soda and seal the container.

3. The method for preparing the rapeseed-specific targeted active foliar spraying liquid fertilizer according to claim 2, characterized in that: The above steps are carried out at room temperature. The finished product of targeted active foliar spray liquid fertilizer is packaged according to 1,500 portions and stored in a cool place at room temperature for future use.

4. The method for using the rapeseed-specific targeted active foliar spraying liquid fertilizer is characterized by: The targeted active foliar spray liquid fertilizer is used in a total amount of 1500 ml per mu of land, which is divided into three equal parts and diluted 30-40 times with clean water or deionized water during the rapeseed spring moss growth period, the rapeseed late flowering period, and the rapeseed green fruit period. The fertilizer is sprayed on the leaves using an electric sprayer on a sunny day with good sunshine.

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