Foliar fertilizer rich in selenium and amino acids, preparation method therefor, and use thereof

Abstract

A foliar fertilizer rich in selenium and amino acids, a preparation method therefor, and the use thereof. The main components are: composite probiotics, cooked fish paste, urea, potassium sulfate, molasses, and sodium selenite. The parts by weight of the raw materials are, respectively: 1000 parts of composite probiotics, 200 parts of cooked fish paste, 25 parts of urea, 50 parts of potassium sulfate, 100 parts of molasses, and 1.0 part of sodium selenite. The foliar fertilizer has a certain effect on promoting the absorption of selenium by crops, increasing the selenium content in crops, promoting the growth of crops, and enhancing the yield of crops.

Description

A foliar fertilizer rich in selenium and amino acids, its preparation method and application Technical Field

[0001] This invention relates to the field of fertilizer technology, and more specifically to a foliar fertilizer rich in selenium and amino acids, its preparation method, and its application. Background Technology

[0002] Selenium is an essential micronutrient for the human body, playing a role in enhancing immunity, preventing cardiovascular disease, anti-aging, and anti-cancer properties. In my country, 72% of the country is selenium-deficient or low-selenium, and two-thirds of the population suffers from insufficient selenium intake, which seriously affects people's health.

[0003] The human body primarily obtains selenium from plants, which absorb it through their roots and leaves and concentrate it in edible parts. Amino acid fertilizers are easily absorbed and utilized by crops, promoting crop growth and the absorption of other nutrients, improving photosynthetic efficiency, and increasing crop yield. Therefore, developing a fertilizer rich in selenium and amino acids is of great significance for improving human health.

[0004] In summary, how to provide a method for preparing foliar fertilizer rich in selenium and amino acids is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] In view of this, the present invention provides a foliar fertilizer rich in selenium and amino acids, its preparation method and application.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] This invention provides a foliar fertilizer rich in selenium and amino acids, which is prepared by mixing and fermenting the raw materials together for 30-50 days, using 800-1200 parts of compound probiotics, 100-200 parts of cooked fish paste, 20-30 parts of urea, 40-60 parts of potassium sulfate, 80-100 parts of molasses, and 1.0-1.2 parts of sodium selenite.

[0008] A method for preparing a foliar fertilizer rich in selenium and amino acids specifically includes the following steps:

[0009] (1) Preparation of compound probiotics: Photosynthetic bacteria (Rhodopseudomonas capsulata: Rhodopseudomonas sphaeroides = 5:2), yeast (Saccharomyces cerevisiae: Saccharomyces uvarum = 3:1), Bacillus subtilis: Bacillus licheniformis = 4:1) and lactic acid bacteria (Lactobacillus paracasei: Lactobacillus rhamnosus = 1:2) were compounded according to the following weight percentages (photosynthetic bacteria 10-25wt%, yeast 15-30wt%, Bacillus 20-30wt%, lactic acid bacteria 30-40wt%) to obtain compound probiotics.

[0010] (2) Obtaining foliar fertilizer rich in selenium and amino acids: Weigh out 800-1200 parts of compound probiotic liquid, 100-200 parts of cooked fish paste, 20-30 parts of urea, 40-60 parts of potassium sulfate, 80-100 parts of molasses, and 1.0-1.2 parts of sodium selenite according to the predetermined weight ratio. Add each raw material component to a fermentation tank and stir evenly to obtain a mixture. Ferment the above mixture to obtain foliar fertilizer rich in selenium and amino acids.

[0011] Furthermore, in step (2) above, the fermentation temperature must be higher than 10°C, and the fermentation method is facultative anaerobic fermentation.

[0012] The present invention also claims protection for the application of a selenium- and amino acid-rich foliar fertilizer as described above, or a selenium- and amino acid-rich foliar fertilizer prepared by the method described above, in rice cultivation.

[0013] As can be seen from the above technical solution, compared with the prior art, the beneficial effects achieved by the present invention are: promoting crop growth and its absorption of selenium, increasing the selenium content in the crop body, and increasing crop yield. Detailed Implementation

[0014] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0015] The reagents required for this invention are conventional experimental reagents, purchased from commercially available channels; the experimental methods not mentioned are conventional experimental methods, and will not be described in detail here.

[0016] Example 1

[0017] Preparation of foliar fertilizer rich in selenium and amino acids

[0018] Mix the following bacterial solutions in a ratio of 20wt% photosynthetic bacteria solution, 20wt% yeast solution, 25wt% Bacillus spores solution, and 35wt% lactic acid bacteria solution to obtain a compound probiotic solution. Add 1000kg of the compound probiotic solution, 200kg of cooked fish paste, 25kg of urea, 50kg of potassium sulfate, 100kg of molasses, and 1kg of sodium selenite to a fermentation tank and mix well. Ferment anaerobically for 30-50 days at a temperature above 10℃, stirring 2-3 times per week during fermentation. After fermentation, the foliar fertilizer is obtained.

[0019] Example 2

[0020] The effects of foliar fertilizer on rice

[0021] The experimental field was located in Qiqihar City, Heilongjiang Province. The basic physicochemical properties of the soil were as follows: pH 6.18, organic matter content 46 g / kg, available nitrogen content 165 mg / kg, available phosphorus content 85 mg / kg, available potassium content 186 mg / kg, and selenium content 0.236 mg / kg. The experiment was designed with 4 groups, including 1 experimental group and 3 control groups, and each group had 3 experimental plots.

[0022] The specific application method for rice during the heading, flowering, and grain-filling stages is as follows: Dilute the foliar fertilizer described in Example 1 50 times with clean water and spray it evenly on the rice leaves. The application rate is 22.5 L / hm² each time. 2 Control group 1 was treated with an equal amount of water instead of the diluted foliar fertilizer in the experimental group; control group 2 was treated with only the compound probiotic solution from Example 1, with the same application amount and method as the experimental group; control group 3 was treated with fertilizer obtained by replacing the compound probiotic solution from Example 1 with an equal amount of water, with the same application amount and method as the experimental group.

[0023] The experimental variety was Longjing 29, and the yield was 65 kg / hm². 2 Sowing was carried out at the appropriate sowing rate. Before rice harvest, 20 plants were randomly selected from each district for seed testing, and plant height, number of effective panicles, panicle length, thousand-grain weight, selenium content in rice leaves, and selenium content in brown rice were measured. After rice harvest, rice yield was calculated for each district. The results are shown in Table 1.

[0024] Table 1

[0025] The plant height, effective panicle number, panicle length, thousand-grain weight, and yield of rice treated with foliar fertilizer were significantly higher than those of the three control groups. The differences between control groups 2 and 3 were not significant, but both were higher than those of control group 1. This indicates that, compared with the control groups, the foliar fertilizer of this invention can significantly promote the growth of rice and increase its yield.

[0026] On the other hand, compared with the control group, the selenium content in rice leaves and brown rice of rice treated with foliar fertilizer was significantly increased. Although the selenium content in rice leaves and brown rice of control groups 2 and 3 was also higher than that of control group 1, the effect of applying only compound probiotic liquid or inorganic salt and cooked fish mud fertilizer was significantly lower than that of the foliar fertilizer of the present invention. This indicates that the foliar fertilizer of the present invention can promote the absorption of selenium by rice and increase the selenium content in the rice plant.

[0027] Applying the above-mentioned foliar fertilizers to crop cultivation can promote the absorption of selenium by crops, increase the selenium content in the crop body, promote crop growth, and increase crop yield.

[0028] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the content of the present invention specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A foliar fertilizer enriched with selenium and amino acids, characterized in that, The ingredients include the following parts by weight: 1000 parts of compound probiotics, 200 parts of cooked fish paste, 25 parts of urea, 50 parts of potassium sulfate, 100 parts of molasses, and 1.0 part of sodium selenite.

2. A method of preparing a foliar fertilizer enriched with selenium and amino acids as claimed in claim 1, characterized in that, Specifically, the following steps are included: (1) Preparation of compound probiotics; (2) Obtaining foliar fertilizer rich in selenium and amino acids.

3. The method for preparing a foliar fertilizer rich in selenium and amino acids according to claim 2, characterized in that, In step (2), the fermentation temperature must be higher than 10°C, and the fermentation method is facultative anaerobic fermentation.

4. The application of a foliar fertilizer rich in selenium and amino acids as described in claim 1, or a foliar fertilizer rich in selenium and amino acids prepared by the preparation method described in claims 2-3, in rice cultivation.

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