Nutrient fertilizer for increasing crop yield and application thereof

Abstract

The invention discloses a nutrient fertilizer for increasing crop yield and application thereof, and belongs to the technical field of crop fertilizers. The nutrient fertilizer comprises the following raw materials in percentage by weight: 45%-60% of urea, 15%-25% of humate, 10%-15% of algal polysaccharides, 4%-6% of monopotassium phosphate, 1%-3% of trace elements, 1%-3% of ammonium sulfate, 6%-10% of bitter gourd peptide and 1%-3% of tannic acid. Through reasonable matching of nitrogen, phosphorus, potassium and trace elements and combination of low-molecular bitter gourd peptide and low-concentration tannic acid, all the raw materials have a synergistic effect, absorption and utilization of nutrients by crops are promoted, and the utilization rate of the fertilizer and the yield of the crops are remarkably increased.

Description

Technical Field

[0001] The invention relates to the technical field of crop fertilizers, and in particular to a nutrient fertilizer for increasing crop yield and application thereof. Background Art

[0002] With the rapid development of society and the rapid increase in population, the demand for crops is also increasing. In order to increase crop yields, farmers have been using large amounts of chemical fertilizers for a long time. However, in actual production, due to the long-term use of a single fertilizer, poor quality of fertilizers or excessive use, the soil structure is destroyed, the proportion of various nutrients is unbalanced, the soil is acidified and compacted, and the physical and chemical properties and soil microbial flora are seriously damaged. These problems make the soil poor in water retention, fertilizer retention, and air permeability, making it difficult to meet the actual growth needs of crops, resulting in a decrease in crop yields and an inability to meet social needs.

[0003] Although the traditional use of chemical fertilizers can increase crop yields to a certain extent, the damage to soil structure and environmental pollution are becoming increasingly prominent. Therefore, the development of a nutrient fertilizer that can not only increase crop yields, but also improve soil structure and protect the environment has become a research hotspot in the current agricultural field. At present, agricultural waste such as chicken manure, earthworm manure, bagasse, wheat straw, soybean meal, leek, onion peel, etc., can be converted into fertilizer raw materials rich in organic matter, N elements, C elements and trace elements under proper treatment. These raw materials can not only provide rich nutrition for crops, but also improve soil looseness and water storage and fertilizer retention capacity, eliminate soil compaction, and improve the growth environment of crops. In addition, the use of composite microbial agents is also an important means to improve the effect of fertilizers. Composite microbial agents are rich in a variety of beneficial microorganisms, which can accelerate the decomposition of organic matter in agricultural waste and convert it into nutrients that are easily absorbed by crops. At the same time, they can also remove residual toxins in the soil, absorb heavy metals and harmful substances in the soil, and improve the health of the soil. However, the composition and content of different agricultural wastes vary greatly, the quality of the prepared fertilizers is unstable, the fertilizer effect is also unstable, the nutrients are easily lost, and the application amount needs to be adjusted in time during actual use, which increases the labor cost of agricultural production. Therefore, it is necessary to provide an environmentally friendly, efficient, comprehensive, and easy-to-use nutrient fertilizer to meet the actual needs of agricultural production and promote sustainable agricultural development. Summary of the invention

[0004] The purpose of the present invention is to provide a nutrient fertilizer for increasing crop yield and its application, so as to solve the problems existing in the above-mentioned prior art. The present invention reasonably matches nitrogen, phosphorus, potassium and trace elements, combines low-molecular bitter melon peptide and low-concentration tannic acid, so as to make the raw materials synergistic, promote the absorption and utilization of nutrients by crops, and significantly improve the fertilizer utilization rate and crop yield.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] The invention provides a nutrient fertilizer for increasing crop yield, comprising the following raw materials in weight percentage: 45%-60% of urea, 15%-25% of humate, 10%-15% of seaweed polysaccharide, 4%-6% of potassium dihydrogen phosphate, 1%-3% of trace elements, 1%-3% of ammonium sulfate, 6%-10% of momordica charantia peptide and 1%-3% of tannic acid.

[0007] Optionally, the raw materials include the following weight percentages: 52% urea, 18% humate, 12% seaweed polysaccharide, 5% potassium dihydrogen phosphate, 2% trace elements, 1% ammonium sulfate, 8% momordica charantia peptide and 2% tannic acid.

[0008] Optionally, the trace elements include boric acid, ferrous sulfate, sodium molybdate and zinc sulfate.

[0009] Optionally, the mass ratio of the boric acid, ferrous sulfate, sodium molybdate and zinc sulfate is (2-4):(1-2):(1-2):(3-4).

[0010] Optionally, the humate includes one or more of sodium humate, potassium humate, ammonium humate and zinc humate.

[0011] The present invention also provides a method for preparing the above-mentioned nutrient fertilizer, comprising the following steps:

[0012] (1) After mixing urea, humate, potassium dihydrogen phosphate and bitter melon peptide, 2-3 times the mass of water is added, and the mixture is stirred evenly to obtain a mixture 1;

[0013] (2) After mixing the trace elements, ammonium sulfate and tannic acid, add 2-3 times the mass of water, stir evenly, and obtain mixture 2;

[0014] (3) The mixture 1, the mixture 2 and seaweed polysaccharide are mixed and then spray-dried to obtain the nutrient fertilizer.

[0015] In the present invention, urea, humate, potassium dihydrogen phosphate and bitter melon peptide are mixed, and bitter melon peptide can be complexed with elements such as nitrogen and phosphorus to stabilize nutrients. In addition, bitter melon peptide can promote the absorption and utilization of nutrients by plants, thereby improving the utilization rate of fertilizers. Trace elements, ammonium sulfate and tannic acid are mixed, and tannic acid can combine trace elements in trace elements to form a stable complex, so that nutrients are not easily lost. Finally, seaweed polysaccharides are added to coordinate various raw materials to make the nutrient fertilizer system more stable.

[0016] The present invention also provides application of the above nutrient fertilizer or the nutrient fertilizer prepared by the above preparation method in increasing crop yield.

[0017] Optionally, the crop comprises corn.

[0018] The present invention also provides a method for increasing crop yields. After the crops emerge, the nutrient fertilizer or the nutrient fertilizer prepared by the preparation method is applied with water for 2-3 times during the entire growth period to increase the crop yield.

[0019] Optionally, the application amount is 15-20 kg / mu / time.

[0020] The present invention discloses the following technical effects:

[0021] The present invention improves the yield of crops by rationally matching nitrogen, phosphorus, potassium and trace elements, combining low-molecular bitter melon peptide and tannic acid. Bitter melon peptide can promote the growth rate of crops, increase the root system and leaf area, and increase the absorption rate of nutrients by crops, thereby increasing the yield; low-concentration tannic acid can combine with trace elements in fertilizers, making the trace elements less likely to be lost and more easily absorbed and utilized by crops, thereby improving the utilization rate of fertilizers; the synergistic effect of various raw materials can increase corn yield by 39.40-46.13%. It provides a new fertilizer resource for high-yield crops. DETAILED DESCRIPTION

[0022] Various exemplary embodiments of the present invention will now be described in detail. This detailed description should not be considered as limiting the present invention, but should be understood as a more detailed description of certain aspects, features, and embodiments of the present invention.

[0023] It should be understood that the terms described in the present invention are only for describing a particular embodiment and are not intended to limit the present invention. In addition, for the numerical range in the present invention, it should be understood that each intermediate value between the upper and lower limits of the scope is also specifically disclosed. The intermediate value in any stated value or stated range, and each smaller range between any other stated value or intermediate value in the described range is also included in the present invention. The upper and lower limits of these smaller ranges can be independently included or excluded in the scope.

[0024] Unless otherwise indicated, all technical and scientific terms used herein have the same meanings as those generally understood by those skilled in the art. Although the present invention describes only preferred methods and materials, any methods and materials similar or equivalent to those described herein may also be used in the implementation or testing of the present invention. All documents mentioned in this specification are incorporated by reference to disclose and describe the methods and / or materials associated with the documents. In the event of a conflict with any incorporated document, the content of this specification shall prevail.

[0025] It will be apparent to those skilled in the art that various modifications and variations may be made to the specific embodiments of the present invention description without departing from the scope or spirit of the present invention. Other embodiments derived from the present invention description will be apparent to those skilled in the art. The present invention description and examples are exemplary only.

[0026] The words “include,” “including,” “have,” “contain,” etc. used in this document are open-ended terms, meaning including but not limited to.

[0027] There are no special requirements for the raw materials of the nutrient fertilizer of the present invention, and all of them can be purchased through conventional channels.

[0028] The bitter melon peptide and soybean peptide used in this example were purchased from Shaanxi Baichuan Biotechnology Co., Ltd., and the seaweed polysaccharide was purchased from Shaanxi Snotech Biotechnology Co., Ltd.

[0029] Example 1

[0030] A nutrient fertilizer for increasing crop yields, comprising the following raw materials in percentage by weight:

[0031] Urea 58%, humate 15%, seaweed polysaccharide 10%, potassium dihydrogen phosphate 4%, trace elements 2%, ammonium sulfate 2%, momordica charantia peptide 6% and tannic acid 3%.

[0032] Among them, trace elements include boric acid, ferrous sulfate, sodium molybdate and zinc sulfate, with a mass ratio of 2:1:1:4.

[0033] The preparation process is:

[0034] (1) After mixing urea, humate, potassium dihydrogen phosphate and bitter melon peptide, add 3 times the mass of water of the above mixed raw materials, stir evenly, and obtain a mixture 1;

[0035] (2) After the trace elements, ammonium sulfate and tannic acid are mixed, water 3 times the mass of the above mixed raw materials is added, and the mixture is stirred evenly to obtain a mixture 2;

[0036] (3) The mixture 1, the mixture 2 and seaweed polysaccharide are mixed and then spray-dried to obtain the nutrient fertilizer.

[0037] Example 2

[0038] A nutrient fertilizer for increasing crop yields, comprising the following raw materials in percentage by weight:

[0039] Urea 52%, humate 18%, seaweed polysaccharide 12%, potassium dihydrogen phosphate 5%, trace elements 2%, ammonium sulfate 1%, bitter melon peptide 8% and tannic acid 2%.

[0040] Among them, trace elements include boric acid, ferrous sulfate, sodium molybdate and zinc sulfate, with a mass ratio of 3:1:1:3.

[0041] The preparation process is:

[0042] (1) After mixing urea, humate, potassium dihydrogen phosphate and bitter melon peptide, add 3 times the mass of water of the above mixed raw materials, stir evenly, and obtain a mixture 1;

[0043] (2) After the trace elements, ammonium sulfate and tannic acid are mixed, water 3 times the mass of the above mixed raw materials is added, and the mixture is stirred evenly to obtain a mixture 2;

[0044] (3) The mixture 1, the mixture 2 and seaweed polysaccharide are mixed and then spray-dried to obtain the nutrient fertilizer.

[0045] Example 3

[0046] A nutrient fertilizer for increasing crop yields, comprising the following raw materials in percentage by weight:

[0047] Urea 48%, humate 25%, seaweed polysaccharide 10%, potassium dihydrogen phosphate 4%, trace elements 1%, ammonium sulfate 1%, momordica charantia peptide 10% and tannic acid 1%.

[0048] Among them, trace elements include boric acid, ferrous sulfate, sodium molybdate and zinc sulfate, with a mass ratio of 4:2:2:3.

[0049] The preparation process is:

[0050] (1) After mixing urea, humate, potassium dihydrogen phosphate and bitter melon peptide, add 3 times the mass of water of the above mixed raw materials, stir evenly, and obtain a mixture 1;

[0051] (2) After the trace elements, ammonium sulfate and tannic acid are mixed, water 3 times the mass of the above mixed raw materials is added, and the mixture is stirred evenly to obtain a mixture 2;

[0052] (3) The mixture 1, the mixture 2 and seaweed polysaccharide are mixed and then spray-dried to obtain the nutrient fertilizer.

[0053] Comparative Example 1

[0054] The difference from Example 2 is that tannic acid is replaced by an equal amount of urea.

[0055] Comparative Example 2

[0056] The difference from Example 2 is that the bitter melon peptide is replaced by an equal amount of urea.

[0057] Comparative Example 3

[0058] The difference from Example 2 is that tannic acid and bitter melon peptide are replaced by an equal amount of urea.

[0059] Comparative Example 4

[0060] The difference from Example 2 is that the amount of tannic acid is adjusted to 0.1%, and the amount of urea is adjusted to 53.9%.

[0061] Comparative Example 5

[0062] The difference from Example 2 is that the amount of tannic acid is adjusted to 5%, and the amount of urea is adjusted to 49%.

[0063] Comparative Example 6

[0064] The difference from Example 2 is that the bitter melon peptide is replaced by soybean peptide.

[0065] Test Example 1

[0066] Taking "Zheke Nuo No. 7" corn as the test crop, 10 test fields with the same area and fertility were selected to verify the effect of the nutrient fertilizers prepared in Examples 1-3 and Comparative Examples 1-6 on corn yield, and another test field was used as a blank control. The planting density of corn is 3500 plants / mu. The 9 test fields were managed in the same way, and the management method was as follows: before sowing, decomposed organic fertilizer was used as base fertilizer, and the base fertilizer application rate was 1000kg / mu; timely inter-cultivation and loosening of the soil, and weeds in the field were removed; irrigation was carried out 10 days before tasseling; irrigation was carried out according to the field moisture conditions. Nutrient fertilizer was applied with water 3 times during the entire growth period, and the application rate was 20kg / mu each time. No nutrient fertilizer was applied to the blank control group.

[0067] Corn was harvested after maturity, and the corn yield of each group was counted. The results are shown in Table 1.

[0068] Table 1 Statistics of corn yield and yield in each group

[0069]

[0070]

[0071] It can be seen from Table 1 that the nutrient fertilizers prepared in Examples 1-3 can significantly increase corn yield, and the yield growth rate can reach 39.40-46.13%.

[0072] In contrast, after omitting tannic acid or bitter melon peptide, the growth rate of corn yield decreased, indicating that tannic acid and bitter melon peptide have the effect of increasing corn yield, which is also reflected in the corn yield of Comparative Example 3. Tannic acid and bitter melon peptide show a synergistic effect in increasing corn yield. The growth rate of corn yield after omitting bitter melon peptide is lower than the growth rate of corn yield after omitting tannic acid, indicating that bitter melon peptide has a greater impact on corn yield.

[0073] This test example also verifies the effect of the amount of tannic acid used on corn yield. The results show that when the amount of tannic acid used is low, the effect of increasing corn yield is low, but when the amount of tannic acid used is higher than a certain value, it has no effect on increasing corn yield. In addition, after analyzing comparative example 1, it was found that high-content tannic acid may reduce corn yield. Therefore, in actual application, attention should be paid to the amount used.

[0074] After the bitter melon peptide was replaced with soybean peptide, the corn yield growth rate was lower than that in Example 1-3, indicating that not all polypeptide substances have the effect of increasing crop yields, and care should be taken to distinguish them during actual application.

[0075] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A nutrient fertilizer for increasing crop yield, characterized in that: The invention comprises the following raw materials in weight percentage: 45%-60% urea, 15%-25% humate, 10%-15% seaweed polysaccharide, 4%-6% potassium dihydrogen phosphate, 1%-3% trace elements, 1%-3% ammonium sulfate, 6%-10% bitter melon peptide and 1%-3% tannic acid.

2. The nutrient fertilizer according to claim 1, characterized in that The invention comprises the following raw materials in percentage by weight: 52% of urea, 18% of humate, 12% of seaweed polysaccharide, 5% of potassium dihydrogen phosphate, 2% of trace elements, 1% of ammonium sulfate, 8% of bitter melon peptide and 2% of tannic acid.

3. The nutrient fertilizer according to claim 1, characterized in that The trace elements include boric acid, ferrous sulfate, sodium molybdate and zinc sulfate.

4. The nutrient fertilizer according to claim 3, characterized in that The mass ratio of the boric acid, ferrous sulfate, sodium molybdate and zinc sulfate is (2-4):(1-2):(1-2):(3-4).

5. The nutrient fertilizer according to claim 1, characterized in that The humate includes one or more of sodium humate, potassium humate, ammonium humate and zinc humate.

6. A method for preparing the nutrient fertilizer according to any one of claims 1 to 5, characterized in that: The steps include: (1) After mixing urea, humate, potassium dihydrogen phosphate and bitter melon peptide, 2-3 times the mass of water is added, and the mixture is stirred evenly to obtain a mixture 1; (2) After mixing the trace elements, ammonium sulfate and tannic acid, add 2-3 times the mass of water, stir evenly, and obtain mixture 2; (3) The mixture 1, the mixture 2 and seaweed polysaccharide are mixed and then spray-dried to obtain the nutrient fertilizer.

7. Use of the nutrient fertilizer according to any one of claims 1 to 5 or the nutrient fertilizer prepared by the preparation method according to claim 6 in increasing crop yield.

8. The use according to claim 7, characterized in that: The crops include corn.

9. A method for increasing crop yield, characterized in that: After crops emerge, the nutrient fertilizer according to any one of claims 1 to 5 or the nutrient fertilizer prepared by the preparation method according to claim 6 is applied with water 2 to 3 times during the entire growth period to increase the yield of crops.

10. The method according to claim 9, characterized in that The application amount is 15-20kg / mu / time.

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