A double-effect foliar fertilizer for wheat fields

Abstract

The present invention belongs to the technical field of wheat field foliar fertilizer, and specifically relates to a double-effect wheat field foliar fertilizer. A double-effect wheat field foliar fertilizer, comprising the following components by weight percentage: 1.5-40% of a bactericidal composition, 3-30% of a plant foliar fertilizer, 1-10% of a dispersant, 1-4% of a wetting agent, and the filler is supplemented to 100%; wherein the active ingredient of the bactericidal composition is compounded by carbendazim and paeonol, and the mass ratio of carbendazim to paeonol is 1-20:5-1. The double-effect wheat field foliar fertilizer of the present invention contains ingredients such as a bactericidal composition and a plant foliar fertilizer, wherein the bactericidal composition can prevent and treat wheat fusarium head blight. When used, the bactericidal composition prevents and treats wheat fusarium head blight, and the plant foliar fertilizer supplements nutrients for wheat growth, and the combination of the two is beneficial to improving the yield and quality of wheat.

Description

Technical Field

[0001] The invention belongs to the technical field of wheat field foliar fertilizers, and in particular relates to a double-effect wheat field foliar fertilizer. Background Art

[0002] Wheat fusarium head blight is one of the main diseases of wheat, which can occur throughout the growth period. "Three rots and one withering" are the characteristics of fusarium head blight cases, namely stem rot, ear rot, base rot and seedling withering. Infected wheat will not only experience large-scale production reductions, but also produce a variety of fungal toxins, such as zearalenone and deoxynivalenol, which are teratogenic and carcinogenic, and can damage the human immune system. Thus threatening human health. Chemical prevention and control is the main means of preventing and controlling wheat fusarium head blight. Fungicides such as carbendazim, methyl thiophanate, prothioconazole and metconazole are commonly used chemical agents to prevent wheat fusarium head blight. However, the long-term and large-scale use of chemical agents will cause a series of problems such as environmental pollution, pathogen resistance and pesticide residues.

[0003] Paeonol, also known as paeonol, is a small molecule phenolic compound with a molecular weight of 166.18, a molecular formula of C9H10O3, and a chemical name of 2-hydroxy-4-methoxyacetophenone. Paeonol is often used as a raw material for pharmaceutical preparations and daily chemical products such as hair care, skin care, beauty, and toothpaste. With the continuous research on it, it was found that paeonol can also inhibit the activity of plant pathogens. Application No. CN202110453925.1 discloses the use of paeonol as an agricultural fungicide, and specifically discloses that paeonol can be used to prevent and treat a variety of agricultural fungal diseases such as wilt, gray mold, head mold, and vine blight.

[0004] Reasonable compounding of chemical fungicides can expand the control spectrum, improve the control effect, reduce pesticide residues and delay the generation and development of pathogen resistance. The inventors found through experiments that compounding paeonol with syringoxystrobin or carbendazim has a significant synergistic effect, which can improve the control effect of wheat scab and reduce the dosage of chemical agents; at the same time, adding plant foliar fertilizer to the above compound can not only prevent and control wheat scab, but also supplement nutrients for wheat growth, which is beneficial to improve wheat yield and quality. Summary of the invention

[0005] The purpose of the present invention is to provide a double-effect wheat field foliar fertilizer, wherein the bactericidal composition can effectively prevent and treat wheat fusarium head blight, and the plant foliar fertilizer can supplement nutrients for wheat growth. The combination of the two is beneficial to improving the yield and quality of wheat.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A double-effect wheat field foliar fertilizer comprises the following components by weight percentage: 1.5-40% of a fungicide composition, 3-30% of a plant foliar fertilizer, 1-10% of a dispersant, 1-4% of a wetting agent, and a filler supplemented to 100%; wherein the active ingredient of the fungicide composition is a compound of taunomycin-butyl or carbendazim and paeonol.

[0008] Furthermore, the mass ratio of syringoxystrobin to paeonol is 1-3:25-1.

[0009] Furthermore, the mass ratio of carbendazim to paeonol is 1-20:5-1.

[0010] Furthermore, the plant foliar fertilizer is one or more of urea, potassium nitrate, ammonium sulfate, potassium chloride, ammonium nitrate, diammonium phosphate, magnesium sulfate and sodium borate tetrahydrate.

[0011] Furthermore, the dispersant is calcium lignin sulfonate; the wetting agent is one or a combination of sodium dodecyl sulfate and sodium lauryl sulfate; and the filler is one or a combination of kaolin, clay, talc and glucose.

[0012] In addition, the present invention also provides a method for preparing the dual-effect wheat field foliar fertilizer, which comprises adding the weighed components into a mixing kettle, mixing them evenly, crushing them into particles with a size of 10-20 μm by a jet mill, and mixing them evenly again to obtain the dual-effect wheat field foliar fertilizer.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] (1) The dual-effect wheat field foliar fertilizer of the present invention contains ingredients such as a bactericidal composition and a plant foliar fertilizer, wherein the bactericidal composition can prevent and treat wheat scab. When used, the bactericidal composition prevents and treats wheat scab, and the plant foliar fertilizer supplements nutrients for wheat growth. The combination of the two is beneficial to improving the yield and quality of wheat.

[0015] (2) The two active ingredients in the dual-effect wheat field foliar fertilizer bactericidal composition of the present invention have a synergistic effect on the pathogens of wheat fusarium rust when compounded, which can improve the prevention and control effect, help reduce the spraying dosage of pesticides, and to a certain extent alleviate the problems of environmental pollution, pathogen resistance and pesticide residues. DETAILED DESCRIPTION

[0016] The present invention can be better understood according to the following examples. However, it is easy for those skilled in the art to understand that the contents described in the examples are only used to illustrate the present invention, and should not and will not limit the present invention described in detail in the claims.

[0017] Example 1 :Screening of pesticides for controlling wheat fusarium wilt

[0018] 1. Test strain: Fusaium graminearum, collected from infected wheat plants in a wheat field in the suburbs of Zhengzhou, Henan, isolated and purified in the laboratory, and stored on PDA medium. (PDA medium formula: 200g peeled potato, 20g sucrose, 20g agar, 1000mL water, natural pH)

[0019] 2. Test agents: 96% taunomycin-methyl, 98% carbendazim, 99% paeonol, all of which are commercially available; the test agents were dissolved in dimethyl sulfoxide solvent, and then diluted with 0.1% Tween-80 aqueous solution to prepare single-dose stock solutions, and multiple groups of proportions were set. Each single dose and proportioned mixture was set with 6 mass concentration gradients according to the equal ratio method.

[0020] 3. Test method: Using the hyphae growth rate method, add 9 mL of pre-melted PDA medium to a sterile conical flask, quantitatively draw 1.2 mL of drug solution from low concentration to high concentration, add it to the above conical flasks respectively, shake well and pour equal amounts into 3 culture dishes with a diameter of 9 cm to make drug-containing plates of corresponding concentrations; and set the treatment without drug as blank control, and set 3 replicates for each treatment. Use a 5 mm diameter puncher to cut the bacterial cake at the edge of the test strain colony, inoculate it in the center of the drug-containing plate and the blank control plate, cover the plate and place it at a constant temperature of 28 ° C for cultivation. When the diameter of the blank control colony reaches more than 2 / 3 of the diameter of the culture dish, measure the colony diameter using the cross method, and calculate the inhibition rate of hyphae growth by different treatments.

[0021]

[0022] 4. Data analysis: DPS software was used for data statistical analysis. The logarithmic value of fungicide concentration was taken as x and the corresponding probability value of mycelium growth inhibition rate was taken as y for linear regression. The toxicity regression equation and the toxicity EC value of the agent to the target pathogen were obtained. 50 The co-toxicity coefficient (CTC) was calculated according to the Sun Yunpei method.

[0023] 5. Measurement results

[0024] The synergistic effect of the drug was evaluated based on the calculated co-toxicity coefficient (CTC). CTC≤80 was antagonistic, 80<CTC<120 was additive, and CTC≥120 was synergistic. The results are shown in Table 1-2.

[0025] Table 1 The results of toxicity test of syringoxystrobin and paeonol against Fusarium graminearum

[0026]

[0027] As can be seen from Table 1, within the mass ratio range of 1-3:25-1, the co-toxicity coefficient of syringoxystrobin and paeonol against Fusarium graminearum was greater than 120, showing a synergistic effect.

[0028] Table 2 The results of toxicity test of carbendazim and paeonol against Fusarium graminearum

[0029]

[0030] As can be seen from Table 2, within the mass ratio range of 1-20:5-1, the co-toxicity coefficient of carbendazim and paeonol against Fusarium graminearum was greater than 120, showing a synergistic effect.

[0031] In summary, the bactericidal composition in the dual-effect wheat field foliar fertilizer of the present invention can prevent and control wheat scab. When used, the bactericidal composition prevents and controls wheat scab, and the plant foliar fertilizer supplements nutrients for wheat growth. The combination of the two is conducive to improving the yield and quality of wheat.

[0032] Example 2

[0033] A double-effect foliar fertilizer for wheat fields comprises the following components by weight percentage: 12.5% ​​of a fungicide composition, 15% of potassium nitrate, 10% of ammonium sulfate, 8% of calcium lignin sulfonate, 3% of sodium lauryl sulfate, and talcum powder is supplemented to 100%; wherein the active ingredient of the fungicide composition is compounded by syringoxystrobin and paeonol, and the mass ratio of syringoxystrobin to paeonol is 1:1.

[0034] Example 3

[0035] A double-effect foliar fertilizer for wheat fields comprises the following components by weight percentage: 20% of a fungicide composition, 34% of potassium chloride, 6% of calcium lignin sulfonate, 1% of sodium dodecyl sulfate, 2% of sodium lauryl sulfate, and attapulgite supplemented to 100%; wherein the active ingredient of the fungicide composition is compounded from carbendazim and paeonol, and the mass ratio of syringoxystrobin to paeonol is 20:1.

[0036] The above is only a preferred embodiment of the present invention. Those skilled in the art may make appropriate improvements without departing from the principle of the present invention. These improvements are also within the protection scope of the present invention.

Claims

1. A bactericidal composition, characterized in that: The effective component of the bactericidal composition is prepared by compounding carbendazim and paeonol, and the mass ratio of carbendazim to paeonol is 1-20:5-1.

Images