Vanadium-rich fertilizer and preparation method thereof

Abstract

The application discloses a kind of vanadium-rich fertilizers and preparation method thereof, including nitrogen fertilizer 8~12 parts, phosphorus fertilizer 6~10 parts, potassium fertilizer 11~13 parts, magnesium 0.5~5 parts, vanadium 0.01~0.5 parts, nickel 0.001~0.05 parts, cobalt 0.05~0.5 parts, titanium 0.01~0.2 parts, zinc oxide 0.1~1 parts, tin oxide 0.005~0.05 parts, humic acid 10~20 parts, bentonite 38~64 parts.The rice planted by the fertilizer of the application will not significantly increase blood sugar after being eaten by diabetic patients, solving the pain point of diabetic patients' demand for staple food consumption, while retaining the nutritional value and taste of rice.The preparation method is simple in process, raw materials are easy to obtain, suitable for industrial production, and has wide application prospect.

Description

Technical Field

[0001] This invention relates to the field of fertilizer preparation technology, and more specifically to a vanadium-rich fertilizer and its preparation method. Background Technology

[0002] Vanadium is a transition metal element widely found in nature, and its biological functions have gradually attracted attention in recent years. In the fields of medicine and physiology, vanadium has been shown to mimic insulin activity, regulate human glucose metabolism, and lower blood sugar levels, thus having a positive effect on improving the symptoms and complications of diabetes. At the same time, vanadium can also promote mineral absorption and enhance the body's stress resistance.

[0003] Plants and animals share many similarities at the cellular metabolic level, such as energy metabolism, mineral absorption, and stress resistance. However, current micronutrient fertilizers mostly focus on conventional elements such as iron, manganese, copper, and zinc, with limited synergistic applications of elements like vanadium, nickel, cobalt, and titanium. Furthermore, they have not fully utilized the beneficial functions of vanadium in animal carbohydrate metabolism to develop targeted crop fertilizers.

[0004] Currently, people with diabetes face a dilemma in choosing staple foods: ordinary rice has a high glycemic index (GI) (usually 70-85), and blood sugar rises rapidly after consumption, which is not conducive to blood sugar control; while existing low-glycemic staple foods (such as whole grains and beans) have poor taste and limited nutritional value.

[0005] Therefore, cultivating rice with a low GI value, good taste, and balanced nutrition through fertilizer regulation technology has become key to meeting the staple food needs of diabetic patients. Based on this, this application draws on the regulatory role of vanadium in human sugar metabolism to develop a vanadium-enriched fertilizer that can synergistically regulate crop sugar metabolism, which has significant application value. Summary of the Invention

[0006] This invention provides a vanadium-rich fertilizer and its preparation method to solve the problems existing in the prior art.

[0007] To achieve the above objectives, embodiments of the present invention provide a vanadium-enriched fertilizer, comprising: 8-12 parts nitrogen fertilizer, 6-10 parts phosphate fertilizer, 11-13 parts potassium fertilizer, 0.5-5 parts magnesium, 0.01-0.5 parts vanadium, 0.001-0.05 parts nickel, 0.05-0.5 parts cobalt, 0.01-0.2 parts titanium, 0.1-1 part zinc oxide, 0.005-0.05 parts tin oxide, 10-20 parts humic acid, and 38-64 parts bentonite.

[0008] Preferably, the fertilizer consists of 10 parts nitrogen fertilizer, 8 parts phosphate fertilizer, 12 parts potassium fertilizer, 1 part magnesium, 0.05 parts vanadium, 0.005 parts nickel, 0.1 parts cobalt, 0.05 parts titanium, 0.2 parts zinc oxide, 0.01 parts tin oxide, 15 parts humic acid, and 53 parts bentonite.

[0009] Preferably, the fertilizer consists of 11 parts nitrogen fertilizer, 9 parts phosphate fertilizer, 12 parts potassium fertilizer, 3 parts magnesium, 0.2 parts vanadium, 0.02 parts nickel, 0.3 parts cobalt, 0.1 parts titanium, 0.6 parts zinc oxide, 0.03 parts tin oxide, 18 parts humic acid, and 45 parts bentonite.

[0010] Preferably, the fertilizer consists of 9 parts nitrogen fertilizer, 7 parts phosphate fertilizer, 12 parts potassium fertilizer, 4.5 parts magnesium, 0.45 parts vanadium, 0.04 parts nickel, 0.45 parts cobalt, 0.18 parts titanium, 0.9 parts zinc oxide, 0.045 parts tin oxide, 12 parts humic acid, and 53 parts bentonite.

[0011] Preferably, the nitrogen fertilizer is urea or ammonium chloride; the phosphate fertilizer is potassium dihydrogen phosphate or calcium magnesium phosphate; the potassium fertilizer is potassium sulfate or potassium chloride; and the magnesium is magnesium sulfate or magnesium oxide.

[0012] Preferably, the vanadium is ammonium metavanadate; the nickel is nickel sulfate; the cobalt is cobalt sulfate; and the titanium is titanium dioxide.

[0013] This invention also discloses a method for preparing vanadium-rich fertilizer.

[0014] The method includes the following steps:

[0015] (1) Weigh out the following fertilizers according to the specified ratio: nitrogen fertilizer, phosphorus fertilizer, potassium fertilizer, magnesium-containing compound, vanadium-containing compound, nickel-containing compound, cobalt-containing compound, titanium-containing compound, zinc oxide, tin oxide, humic acid, and bentonite.

[0016] (2) Put the weighed raw materials into a high-efficiency mixer for mechanical dry mixing to ensure initial uniformity;

[0017] (3) Transfer the mixed material to an air jet mill or ball mill for pulverization to achieve a fineness of 80-800 mesh;

[0018] (4) Activation treatment: spray 5%-10% humic acid solution into the crushed material, the amount of which is 3%-8% of the total mass of the material, and stir for 10-15 minutes.

[0019] (5) Homogenize the treated material for 5-10 minutes, seal and package it in a moisture-proof container to obtain the finished product. Compared with the prior art, the present invention has the following advantages:

[0020] Rice grown using the fertilizer of this invention can have a glycemic index (GI) below 55 (compared to 70-85 for conventional rice), a 30%-45% reduction in reducing sugar content, and a 25%-40% increase in resistant starch content. When consumed by diabetic patients, blood sugar spikes are 20%-35% lower than when consuming conventional rice, and the rate of blood sugar decline is gradual without significant spikes, thus addressing a core challenge in staple food intake for diabetic patients.

[0021] Vanadium works synergistically with elements such as magnesium, nickel, and cobalt to ensure low glycemic index while promoting rice root development and enhancing stress resistance (drought resistance, disease and pest resistance), increasing rice yield per acre by 8%-15%. While reducing easily absorbed sugars, the content of nutrients such as protein, dietary fiber, and minerals in rice remains stable, and the texture is soft and glutinous, without the roughness of coarse grains, which is in line with the general public's eating habits.

[0022] The preparation process is mainly physical treatment, with no waste discharge. The raw materials can be vanadium ore by-products, which are low-cost and suitable for large-scale industrial production, with broad application prospects. Detailed Implementation

[0023] This invention discloses a vanadium-rich fertilizer, characterized in that it comprises: 8-12 parts nitrogen fertilizer, 6-10 parts phosphate fertilizer, 11-13 parts potassium fertilizer, 0.5-5 parts magnesium, 0.01-0.5 parts vanadium, 0.001-0.05 parts nickel, 0.05-0.5 parts cobalt, 0.01-0.2 parts titanium, 0.1-1 part zinc oxide, 0.005-0.05 parts tin oxide, 10-20 parts humic acid, and 38-64 parts bentonite.

[0024] In this invention, the nitrogen fertilizer is 8-12 parts, preferably 9-11 parts, more preferably 10-11 parts, and even more preferably 10.5 parts;

[0025] In this invention, the phosphate fertilizer is 6-10 parts, preferably 7-9 parts, more preferably 8-9 parts, and even more preferably 8.5 parts;

[0026] In this invention, the potassium fertilizer is 11-13 parts, preferably 11.5-12.5 parts, more preferably 12-12.5 parts, and even more preferably 12.2 parts;

[0027] In this invention, the magnesium content is 0.5 to 5 parts, preferably 1 to 4 parts, more preferably 2 to 3 parts, and even more preferably 2.5 parts;

[0028] In this invention, the vanadium content is 0.01 to 0.5 parts, preferably 0.05 to 0.4 parts, more preferably 0.1 to 0.3 parts, and even more preferably 0.2 parts;

[0029] In this invention, the nickel content is 0.001 to 0.05 parts, preferably 0.005 to 0.04 parts, more preferably 0.01 to 0.03 parts, and even more preferably 0.02 parts;

[0030] In this invention, the cobalt content is 0.05 to 0.5 parts, preferably 0.1 to 0.4 parts, more preferably 0.2 to 0.3 parts, and even more preferably 0.25 parts;

[0031] In this invention, the titanium content is 0.01 to 0.2 parts, preferably 0.05 to 0.18 parts, more preferably 0.08 to 0.15 parts, and even more preferably 0.12 parts;

[0032] In this invention, the zinc oxide is 0.1 to 1 part, preferably 0.2 to 0.8 parts, more preferably 0.4 to 0.6 parts, and more preferably 0.5 parts;

[0033] In this invention, the amount of tin oxide is 0.005 to 0.05 parts, preferably 0.01 to 0.04 parts, more preferably 0.02 to 0.03 parts, and even more preferably 0.025 parts;

[0034] In this invention, the humic acid is 10-20 parts, preferably 12-18 parts, more preferably 15-17 parts, and more preferably 16 parts;

[0035] In this invention, the bentonite is 38-64 parts, preferably 45-55 parts, more preferably 50-53 parts, and even more preferably 52 parts;

[0036] The present invention will be further explained below with reference to specific embodiments.

[0037] Example 1

[0038] This embodiment provides a vanadium-rich fertilizer, the raw materials of which are composed of the following parts by weight:

[0039] Ingredients: 10 parts urea (nitrogen fertilizer), 8 parts potassium dihydrogen phosphate (phosphate fertilizer), 12 parts potassium sulfate (potassium fertilizer), 1 part magnesium sulfate (magnesium compound), 0.05 parts ammonium metavanadate (vanadium compound), 0.005 parts nickel sulfate (nickel compound), 0.1 parts cobalt sulfate (cobalt compound), 0.05 parts titanium dioxide (titanium compound), 0.2 parts zinc oxide, 0.01 parts tin oxide, 15 parts humic acid, and 53 parts bentonite. Preparation steps.

[0040] (1) Weighing raw materials: Use an electronic platform scale to accurately weigh all the above raw materials and set them aside;

[0041] (2) Mechanical dry mixing: Put all the weighed raw materials into the SHR-500 high-efficiency mixer, set the speed to 800 r / min, and dry mix for 20 min to obtain a preliminary uniform mixture.

[0042] (3) Crushing treatment: Transfer the preliminary mixture to a QLM-80 air jet mill, set the crushing pressure to 0.6MPa, and control the fineness of the crushed material to 200 mesh;

[0043] (4) Activation treatment: Prepare a 7% humic acid solution (dissolve industrial grade humic acid in deionized water and stir until completely dissolved), calculate the amount to be sprayed according to 5% of the total mass of the crushed material (i.e., spray 5 kg of humic acid solution into every 100 kg of crushed material), and spray it evenly into the material through a high-pressure spray device. At the same time, turn on the stirring device, rotate at 500 r / min, and stir for 12 min.

[0044] (5) Homogenization and packaging: The activated material is transferred into a ZHJ-100 homogenizer, the speed is set to 1200 r / min, and the homogenization process is carried out for 8 minutes. Then, it is sealed and packaged in an aluminum-plastic composite moisture-proof packaging bag to obtain the vanadium-rich fertilizer product.

[0045] Application Experiment:

[0046] Test crop: Rice (variety: Jinjing 818)

[0047] Experimental site and soil: Experimental field in Nanjing City, Jiangsu Province, loam soil, pH 6.5.

[0048] Experimental method: The experimental group was treated with the finished fertilizer of this embodiment at a rate of 40 kg / mu; the control group was treated with conventional compound fertilizer with the same nutrient content (N-P2O5-K2O = 15-15-15). Other field management practices were the same.

[0049] Measurement indicators: Samples were taken at the rice maturity stage to measure the rice quality and the blood glucose response in humans after cooking and consumption.

[0050] Results and Analysis:

[0051] Glycemic index (GI): The GI value of rice in the experimental group was 54, while that in the control group was 78, showing a significant reduction.

[0052] Carbohydrate composition: The reducing sugar content of rice in the experimental group was 0.25%, which was 40.5% lower than that in the control group (0.42%); the resistant starch content was 3.8%, which was 40.7% higher than that in the control group (2.7%).

[0053] Postprandial blood glucose test: After consuming 150g of rice in the experimental group, the peak blood glucose level 2 hours after the meal was 28% lower on average than that of the control group, and the area under the blood glucose curve (AUC) was reduced by 25%.

[0054] Yield and agronomic traits: The experimental group of rice yielded 585 kg per mu, an increase of 12.5% ​​compared with the control group (520 kg). At the same time, the plants showed stronger lodging resistance.

[0055] Example 2

[0056] This embodiment provides a vanadium-rich fertilizer, the raw materials of which are composed of the following parts by weight:

[0057] Ammonium chloride (nitrogen fertilizer) 11 parts, calcium magnesium phosphate fertilizer (phosphate fertilizer) 9 parts, potassium chloride (potassium fertilizer) 12 parts, magnesium oxide (magnesium-containing compound) 3 parts, ammonium metavanadate 0.2 parts, nickel sulfate 0.02 parts, cobalt sulfate 0.3 parts, titanium dioxide 0.1 parts, zinc oxide 0.6 parts, tin oxide 0.03 parts, humic acid 18 parts, bentonite 45 parts.

[0058] Preparation steps

[0059] (1) Weighing raw materials: Use an electronic platform scale to accurately weigh all the above raw materials and set them aside;

[0060] (2) Mechanical dry mixing: Put the raw materials into an SHR-500 high-efficiency mixer, rotate at 750 r / min, and dry mix for 25 min to obtain a preliminary uniform material;

[0061] (3) Crushing treatment: Transfer to ball mill, set grinding time to 40 min, and control the fineness of the crushed material to 400 mesh;

[0062] (4) Activation treatment: Prepare an 8% humic acid solution and spray it in at 6% of the total mass of the crushed material. Spray 6 kg of solution into 100 kg of material. Stir for 13 min after spraying at a speed of 550 r / min.

[0063] (5) Homogenization and packaging: Transfer to ZHJ-100 homogenizer, speed 1300r / min, homogenize for 7min, and then seal in aluminum-plastic composite moisture-proof packaging bag to obtain vanadium-rich fertilizer finished product.

[0064] Application Experiment:

[0065] Test crop: Rice (variety: Longjing 31)

[0066] Experimental site and soil: Experimental field in Harbin City, Heilongjiang Province, black calcareous soil, pH 6.9.

[0067] Experimental method: The experimental group was given the finished fertilizer of this embodiment at a rate of 45 kg / mu; the control group was given conventional compound fertilizer with the same nutrients.

[0068] Results and Analysis:

[0069] Glycemic index (GI): The GI value of rice in the experimental group was 52, while that in the control group was 76.

[0070] Carbohydrate composition: The reducing sugar content of rice in the experimental group was 0.28%, which was 37.8% lower than that in the control group (0.45%); the resistant starch content was 4.1%, which was 41.4% higher than that in the control group (2.9%).

[0071] Postprandial blood glucose test: After consuming rice from the experimental group, diabetic patients (n=15) experienced an average reduction of 32% in their postprandial blood glucose peak 2 hours after the meal.

[0072] Nutritional quality and yield: The protein content of rice in the experimental group was 8.5%, an increase of 0.8 percentage points compared with the control group. The yield per mu reached 610 kg, an increase of 13.0% compared with the control group (540 kg). The plumpness of the grains was improved and the chalkiness was reduced.

[0073] Example 3

[0074] This embodiment provides a vanadium-rich fertilizer, the raw materials of which are composed of the following parts by weight:

[0075] 9 parts urea (nitrogen fertilizer), 7 parts potassium dihydrogen phosphate (phosphate fertilizer), 12 parts potassium sulfate (potassium fertilizer), 4.5 parts magnesium sulfate, 0.45 parts ammonium metavanadate, 0.04 parts nickel sulfate, 0.45 parts cobalt sulfate, 0.18 parts titanium dioxide, 0.9 parts zinc oxide, 0.045 parts tin oxide, 12 parts humic acid, and 53 parts bentonite.

[0076] Preparation steps

[0077] (1) Raw material weighing: All raw materials are accurately weighed using an electronic platform scale and set aside for later use;

[0078] (2) Mechanical dry mixing: put it into an SHR-500 mixer, rotate at 850 r / min, dry mix for 30 min to obtain a preliminary uniform material;

[0079] (3) Grinding treatment: Transfer to QLM-80 air jet mill, grinding pressure 0.7MPa, fineness controlled at 600 mesh;

[0080] (4) Activation treatment: Prepare a 9% humic acid solution and spray it in at 7% of the total mass of the crushed material. Spray 7kg of solution into 100kg of material and stir for 14min at a speed of 600r / min. (5) Homogenization and packaging: Transfer to a ZHJ-100 homogenizer at a speed of 1400r / min and homogenize for 9min. Then seal the package with an aluminum-plastic composite moisture-proof packaging bag to obtain the vanadium-rich fertilizer product.

[0081] Application Experiment:

[0082] Test crop: Rice (variety: Huanghuazhan)

[0083] Experimental site and soil: Experimental field in Changsha City, Hunan Province, red soil, pH 6.2.

[0084] Experimental method: The experimental group was given the finished fertilizer of this embodiment at a rate of 50 kg / mu; the control group was given conventional compound fertilizer with the same nutrients.

[0085] Results and Analysis:

[0086] Glycemic Index (GI): The experimental group rice had a GI value of 50, while the control group rice had a GI value of 75. A GI value of 50 falls into the category of low-GI foods.

[0087] Carbohydrate composition: The reducing sugar content of rice in the experimental group was 0.22%, which was 45.0% lower than that in the control group (0.40%); the resistant starch content was 4.5%, which was 60.7% higher than that in the control group (2.8%).

[0088] Postprandial blood glucose test: After consuming rice in the experimental group, diabetic patients (n=15) experienced an average reduction of 35% in their peak blood glucose level 2 hours after the meal, with the most gradual blood glucose fluctuations.

[0089] Overall benefits: The experimental group of rice yielded 595 kg per mu, an increase of 13.3% compared with the control group (525 kg). In addition, the content of minerals such as zinc and magnesium in the rice was increased to varying degrees, and the taste evaluation showed that the cooked rice was soft, sticky and elastic, with good palatability.

[0090] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0091] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A vanadium-rich fertilizer, characterized in that, include: Nitrogen fertilizer 8-12 parts, phosphate fertilizer 6-10 parts, potassium fertilizer 11-13 parts, magnesium 0.5-5 parts, vanadium 0.01-0.5 parts, nickel 0.001-0.05 parts, cobalt 0.05-0.5 parts, titanium 0.01-0.2 parts, zinc oxide 0.1-1 part, tin oxide 0.005-0.05 parts, humic acid 10-20 parts, bentonite 38-64 parts.

2. The vanadium-rich fertilizer according to claim 1, characterized in that, The fertilizer consists of 10 parts nitrogen fertilizer, 8 parts phosphate fertilizer, 12 parts potassium fertilizer, 1 part magnesium, 0.05 parts vanadium, 0.005 parts nickel, 0.1 parts cobalt, 0.05 parts titanium, 0.2 parts zinc oxide, 0.01 parts tin oxide, 15 parts humic acid, and 53 parts bentonite.

3. The vanadium-rich fertilizer according to claim 1, characterized in that, The fertilizer consists of 11 parts nitrogen fertilizer, 9 parts phosphorus fertilizer, 12 parts potassium fertilizer, 3 parts magnesium, 0.2 parts vanadium, 0.02 parts nickel, 0.3 parts cobalt, 0.1 parts titanium, 0.6 parts zinc oxide, 0.03 parts tin oxide, 18 parts humic acid, and 45 parts bentonite.

4. The vanadium-rich fertilizer according to claim 1, characterized in that, The fertilizer consists of 9 parts nitrogen fertilizer, 7 parts phosphorus fertilizer, 12 parts potassium fertilizer, 4.5 parts magnesium, 0.45 parts vanadium, 0.04 parts nickel, 0.45 parts cobalt, 0.18 parts titanium, 0.9 parts zinc oxide, 0.045 parts tin oxide, 12 parts humic acid, and 53 parts bentonite.

5. The vanadium-rich fertilizer according to claim 1, characterized in that, The nitrogen fertilizer is urea or ammonium chloride; the phosphate fertilizer is potassium dihydrogen phosphate or calcium magnesium phosphate; the potassium fertilizer is potassium sulfate or potassium chloride; and the magnesium is magnesium sulfate or magnesium oxide.

6. The vanadium-rich fertilizer according to claim 1, characterized in that, The vanadium is ammonium metavanadate; the nickel is nickel sulfate; the cobalt is cobalt sulfate; and the titanium is titanium dioxide.

7. A method for preparing vanadium-rich fertilizer, characterized in that, The vanadium-rich fertilizer comprises the components and proportions as described in any one of claims 1-6, and the method includes the following steps: (1) Weigh out the following fertilizers according to the specified ratio: nitrogen fertilizer, phosphorus fertilizer, potassium fertilizer, magnesium-containing compound, vanadium-containing compound, nickel-containing compound, cobalt-containing compound, titanium-containing compound, zinc oxide, tin oxide, humic acid, and bentonite. (2) Put the weighed raw materials into a high-efficiency mixer for mechanical dry mixing to ensure initial uniformity; (3) Transfer the mixed material to an air jet mill or ball mill for pulverization to achieve a fineness of 80-800 mesh; (4) Activation treatment: spray 5%-10% humic acid solution into the crushed material, the amount of which is 3%-8% of the total mass of the material, and stir for 10-15 minutes. (5) Homogenize the processed material for 5-10 minutes, seal and moisture-proof packaging to obtain the finished product.