Nutrient fertilizer for increasing yield of crops and its application

Abstract

The application discloses a kind of nutrient fertilizer for improving crop yield and application thereof, belong to crop fertilizer technical field.The nutrient fertilizer of the application includes the following raw materials by weight percentage: urea 45%-60%, humic acid salt 15%-25%, algal polysaccharide 10%-15%, potassium dihydrogen phosphate 4%-6%, trace element 1%-3%, ammonium sulfate 1%-3%, bitter gourd peptide 6%-10% and tannic acid 1%-3%.The application is reasonable by matching nitrogen, phosphorus and potassium and trace element, combined with low molecular bitter gourd peptide and low concentration tannic acid, so that the synergistic effect between each raw material, promote the absorption and utilization of nutrients for crops, significantly improve the fertilizer utilization rate and crop yield.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of crop fertilizers, in particular to a nutrient fertilizer for improving crop yield and application thereof. BACKGROUND

[0002] With the rapid development of society and the rapid increase in population, the demand for crops is also increasing. In order to improve crop yield, farmers have long used a large amount of chemical fertilizers. However, in actual production, due to long-term single use of a certain chemical fertilizer, poor quality of chemical fertilizer or excessive use, the soil structure is damaged, the proportion of various nutrients is out of balance, the soil is acidified and hardened, and the physicochemical properties and soil microbial flora are severely damaged. These problems make it difficult to meet the actual growth needs of crops, resulting in a decrease in crop yield and an inability to meet social demand.

[0003] Although the traditional use of chemical fertilizers can improve crop yield to some extent, the damage to soil structure and environmental pollution are increasingly prominent. Therefore, developing a nutrient fertilizer that can improve crop yield, improve soil structure and protect the environment has become a research hotspot in the current agricultural field. At present, agricultural wastes such as chicken manure, earthworm manure, sugarcane residue, wheat straw, soybean meal, leeks, onion skins, etc. can be converted into fertilizer raw materials rich in organic matter, N elements, C elements and trace elements after proper treatment. These raw materials not only provide abundant nutrients for crops, but also improve the soil porosity and water and fertilizer retention capacity, eliminate soil hardening and improve the growth environment of crops. In addition, the use of compound microbial agents is also an important means to improve the effect of fertilizers. Compound microbial agents are rich in various beneficial microorganisms, which can accelerate the decomposition of organic matter in agricultural wastes and convert them into nutrients that are easy for crops to absorb, while also eliminating soil residual toxins, adsorbing heavy metals and harmful substances in the soil, and improving the health of the soil. However, the composition and content of different agricultural wastes differ greatly, and the quality and fertilizer efficiency of the prepared fertilizers are unstable, 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

[0004] The purpose of the present application is to provide a nutrient fertilizer for improving crop yield and application thereof to solve the problems existing in the prior art. The present application reasonably matches nitrogen, phosphorus, potassium and trace elements, combines low molecular bitter gourd peptides and low concentration tannic acid, so that the raw materials synergize with each other, 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 application provides the following scheme:

[0006] The present application provides a kind of nutrient fertilizer for improving crop yield, including the following raw materials by weight percentage: urea 45%-60%, humic acid salt 15%-25%, algal polysaccharide 10%-15%, potassium dihydrogen phosphate 4%-6%, trace element 1%-3%, ammonium sulfate 1%-3%, bitter gourd peptide 6%-10% and tannic acid 1%-3%.

[0007] Optionally, including the following raw materials by weight percentage: urea 52%, humic acid salt 18%, algal polysaccharide 12%, potassium dihydrogen phosphate 5%, trace element 2%, ammonium sulfate 1%, bitter gourd peptide 8% and tannic acid 2%.

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

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

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

[0011] The present application also provides a preparation method of the above-mentioned nutrient fertilizer, comprising the following steps:

[0012] (1) mixing urea, humic acid salt, potassium dihydrogen phosphate and bitter gourd peptide, adding 2-3 times mass of water, stirring uniformly to obtain mixture 1;

[0013] (2) mixing trace element, ammonium sulfate and tannic acid, adding 2-3 times mass of water, stirring uniformly to obtain mixture 2;

[0014] (3) mixing the mixture 1, the mixture 2 and algal polysaccharide, and then spray drying to obtain the nutrient fertilizer.

[0015] In the present application, urea, humic acid salt, potassium dihydrogen phosphate and bitter gourd peptide are mixed, bitter gourd peptide can complex with nitrogen, phosphorus and other elements, so as to stabilize nutrients. And bitter gourd peptide can promote the absorption and utilization of nutrients by plants, thereby improving the utilization rate of fertilizer. Trace element, ammonium sulfate and tannic acid are mixed, tannic acid can bind trace elements in trace elements to form stable complex, so that nutrients are not easy to lose. Finally, algal polysaccharide is added to coordinate various raw materials, so that the nutrient fertilizer system is more stable.

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

[0017] Optionally, the crop includes corn.

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

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

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

[0021] This invention improves crop yield by rationally combining nitrogen, phosphorus, potassium, and trace elements with low-molecular-weight bitter melon peptides and tannic acid. Bitter melon peptides promote crop growth, increase root and leaf area, and enhance nutrient absorption, thereby increasing yield. Low-concentration tannic acid binds to trace elements in fertilizers, preventing their loss and facilitating their absorption and utilization by crops, thus improving fertilizer efficiency. The synergistic effect of these ingredients can increase corn yield by 39.40-46.13%, providing a new fertilizer resource for high crop yields. Detailed Implementation

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

[0023] It should be understood that the terminology used in this invention is merely for describing particular embodiments and is not intended to limit the invention. Furthermore, with respect to numerical ranges in this invention, it should be understood that each intermediate value between the upper and lower limits of the range is also specifically disclosed. Any stated value or intermediate value within a stated range, as well as each smaller range between any other stated value or intermediate value within said range, is also included in this invention. The upper and lower limits of these smaller ranges may be independently included or excluded from the range.

[0024] Unless otherwise stated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. While only preferred methods and materials have been described herein, any methods and materials similar or equivalent to those described herein may be used in the implementation or testing of this invention. All references to this specification are incorporated by way of citation to disclose and describe methods and / or materials associated with those references. In the event of any conflict with any incorporated reference, the content of this specification shall prevail.

[0025] Various modifications and variations can be made to the specific embodiments described in this specification without departing from the scope or spirit of the invention, as will be apparent to those skilled in the art. Other embodiments derived from this specification will also be readily apparent to those skilled in the art. This specification and embodiments are merely exemplary.

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

[0027] The raw materials for the nutrient fertilizer of this invention have no special requirements and can all be purchased through conventional channels.

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

[0029] Example 1

[0030] A nutrient fertilizer for increasing crop yield comprises the following raw materials by weight percentage:

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

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

[0033] The preparation process is as follows:

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

[0035] (2) After mixing the trace elements, ammonium sulfate and tannic acid, add water with a mass of 3 times that of the above mixed raw materials, stir evenly, and obtain mixture 2;

[0036] (3) Mix the mixture 1, the mixture 2 and the seaweed polysaccharide, and then spray dry to obtain the nutrient fertilizer.

[0037] Example 2

[0038] A nutrient fertilizer for increasing crop yield comprises the following raw materials by weight percentage:

[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] The trace elements include boric acid, ferrous sulfate, sodium molybdate, and zinc sulfate, in a mass ratio of 3:1:1:3.

[0041] The preparation process is as follows:

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

[0043] (2) After mixing the trace elements, ammonium sulfate and tannic acid, add water with a mass of 3 times that of the above mixed raw materials, stir evenly, and obtain mixture 2;

[0044] (3) Mix the mixture 1, the mixture 2 and the seaweed polysaccharide, and then spray dry to obtain the nutrient fertilizer.

[0045] Example 3

[0046] A nutrient fertilizer for increasing crop yield comprises the following raw materials by weight percentage:

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

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

[0049] The preparation process is as follows:

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

[0051] (2) After mixing the trace elements, ammonium sulfate and tannic acid, add water with a mass of 3 times that of the above mixed raw materials, stir evenly, and obtain mixture 2;

[0052] (3) Mix the mixture 1, the mixture 2 and the seaweed polysaccharide, and then spray dry to obtain the nutrient fertilizer.

[0053] Comparative Example 1

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

[0055] Comparative Example 2

[0056] The difference from Example 2 is that bitter melon peptides are replaced with 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 with an equal amount of urea.

[0059] Comparative Example 4

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

[0061] Comparative Example 5

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

[0063] Comparative Example 6

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

[0065] Experimental Example 1

[0066] Using "Zheke Nuo 7" maize as the experimental crop, ten experimental fields of the same area and fertility were selected to verify the effects of the nutrient fertilizers prepared in Examples 1-3 and Comparative Examples 1-6 on maize yield. One experimental field served as a blank control. The planting density of maize was 3500 plants / mu. Nine experimental fields were managed in the same manner, as follows: 1000 kg / mu of well-rotted organic fertilizer was applied as base fertilizer before sowing; timely cultivation and weeding were carried out; irrigation was conducted 10 days before tasseling; irrigation was carried out according to soil moisture; nutrient fertilizer was applied three times with irrigation water throughout the growing season, with each application amounting to 20 kg / mu. The blank control group received no nutrient fertilizer.

[0067] After the corn matured, it was harvested, and the corn yield of each group was recorded. The results are shown in Table 1.

[0068] Table 1 shows the corn yield and harvest results for each group.

[0069]

[0070]

[0071] As can be seen from Table 1, the nutrient fertilizers prepared in Examples 1-3 can significantly increase corn yield, with a yield growth rate of 39.40-46.13%.

[0072] In contrast, omitting tannins or bitter melon peptides reduced the corn yield growth rate, indicating that tannins and bitter melon peptides have the effect of increasing corn yield. This was also reflected in the corn yield of Comparative Example 3, where tannins and bitter melon peptides showed a synergistic effect in increasing corn yield. The corn yield growth rate after omitting bitter melon peptides was lower than that after omitting tannins, indicating that bitter melon peptides have a greater impact on corn yield.

[0073] This experiment also verified the effect of tannic acid usage on corn yield. The results showed that when the tannic acid usage was low, the effect on increasing corn yield was low. However, when the tannic acid usage was higher than a certain value, it had no effect on increasing corn yield. Furthermore, after analyzing Comparative Example 1, it was found that high tannic acid content may reduce corn yield. Therefore, attention should be paid to the usage in practical applications.

[0074] When bitter melon peptides were replaced with soybean peptides, the corn yield growth rate was lower compared to Examples 1-3, indicating that not all peptides can increase crop yields, and careful identification is necessary in practical applications.

[0075] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A nutrient fertilizer for increasing crop yield, characterized in that, The raw materials include the following weight percentages: urea 45%-60%, humic acid salts 15%-25%, seaweed polysaccharides 10%-15%, potassium dihydrogen phosphate 4%-6%, trace elements 1%-3%, ammonium sulfate 1%-3%, bitter melon peptides 6%-10%, and tannic acid 1%-3%.

2. The nutrient fertilizer according to claim 1, characterized in that, The raw materials include the following weight percentages: urea 52%, humic acid salts 18%, seaweed polysaccharides 12%, potassium dihydrogen phosphate 5%, trace elements 2%, ammonium sulfate 1%, bitter melon peptides 8%, and tannic acid 2%.

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 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 salts include 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 1-5, characterized in that, Includes the following steps: (1) Mix urea, humate, potassium dihydrogen phosphate and bitter melon peptide, add 2-3 times the mass of water, stir evenly to obtain 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) Mix the mixture 1, the mixture 2 and the seaweed polysaccharide, and then spray dry to obtain the nutrient fertilizer.

7. The application of the nutrient fertilizer according to any one of claims 1-5 or the nutrient fertilizer prepared by the preparation method according to claim 6 in improving crop yield.

8. The application according to claim 7, characterized in that, The crops mentioned include corn.

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

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

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