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Manganese foliage spray fertilizer and preparation method thereof

A technology of foliar spraying and elements, applied in the agricultural field, can solve problems such as increasing the degree of soil salinization, achieve the effects of improving water solubility, improving salt tolerance and drought tolerance, and excellent results

Active Publication Date: 2021-11-05
HUAZHONG AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, existing manganese-containing fertilizers often exist in the form of manganese sulfate or manganese chloride, and there are already high levels of sulfate and chloride ions in most saline soils. The introduction of sulfate and chloride ions will inevitably increase the degree of soil salinization. Therefore, it is very important to develop new manganese-based materials without salinization anions.

Method used

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  • Manganese foliage spray fertilizer and preparation method thereof
  • Manganese foliage spray fertilizer and preparation method thereof
  • Manganese foliage spray fertilizer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] This embodiment provides a colloidal nano-mimetic enzyme and a preparation method thereof, the specific operations are as follows:

[0052] Step S1: MnSO 4 .H 2 O 0.425g is dissolved in 2.5mL pure water, 4.5g polyacrylic acid (weight average molecular weight is 1800) is dissolved in 5mL pure water; After the above-mentioned manganese sulfate solution and polyacrylic acid solution are mixed, mix with 2500rpm on the vortex instrument In 15 minutes, the system A solution was obtained;

[0053] Step S2: Add the mixed solution dropwise to 15mL of ammonia water, and stir on a magnetic stirrer at 500rpm for 24 hours; put the stirred solution into a 50mL polytetrafluoroethylene reactor, and conduct a hydrothermal reaction at 120°C for 24 hours. hour; the solution after the reaction was packed in 2mL centrifuge tubes, centrifuged at 4000g for 1 hour at normal temperature, got the supernatant, dialyzed with dialysis bag (MW 3500) for 24 hours, changed the water every 8 hours, a...

Embodiment 2

[0058] This embodiment provides a solid-type nano-enzyme, the specific preparation steps are as follows:

[0059] Step S1: MnSO 4 .H 2 O 0.425g is dissolved in 2.5mL pure water, 4.5g polyacrylic acid (weight average molecular weight is 1800) is dissolved in 5mL pure water; After the above-mentioned manganese sulfate solution and polyacrylic acid solution are mixed, mix with 2500rpm on the vortex instrument In 15 minutes, the system A solution was obtained;

[0060] Step S2: Add the mixed solution dropwise to 15mL of 30wt% ammonia water, and stir at 500rpm on a magnetic stirrer for 24 hours; put the stirred solution into a 50mL polytetrafluoroethylene reactor, and heat it with water at 120°C Reacted for 24 hours; the reacted solution was divided into 2mL centrifuge tubes, centrifuged at 4000g for 1 hour at room temperature, the supernatant was taken, dialyzed with a dialysis bag (MW 3500) for 24 hours, and the water was changed every 8 hours to obtain nano-manganese-based oxi...

Embodiment 3

[0063] This embodiment provides a solid-type nano-enzyme, the specific preparation steps are as follows:

[0064] Mix 2g of manganese acetate and 100mL of ethanol, magnetically stir evenly, react in a hydrothermal kettle at 120°C for 24h, centrifuge at 10,000rpm for 5min, wash with water 3 times and vacuum dry for 24h to obtain a brown solid.

[0065] Its appearance was detected, and its phenotype was spherical.

[0066] Particle size detection was carried out on it, and the particle size was 6.0 nm.

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Abstract

The invention provides a manganese foliage spray fertilizer and a preparation method thereof. The fertilizer comprises a nanometer mimetic enzyme and a surfactant, and the nanometer mimetic enzyme is a manganese-based oxide nanometer material or colloid containing the manganese-based oxide nanometer material. Compared with the prior art, the fertililzer has the beneficial effects that the manganese-based oxide nano-mimic enzyme similar to cell antioxidant enzyme is adopted, can improve the salt tolerance and drought tolerance of crops at the concentration of 150-2000mg / L, is compounded with the surfactant with the volume percentage of 0.04-0.06%, and assists the surfactant in entering leaf surface channels during later leaf surface spraying, and the manganese-based oxide nano-mimic enzyme and the surfactant are matched for use, and the biological indexes during planting under the high-salt condition can be improved.

Description

technical field [0001] The invention belongs to the field of agriculture, and in particular relates to a manganese element foliar spray fertilizer and a preparation method. Background technique [0002] Soil salinization is a serious problem that affects agricultural production and the ecological environment. It is generally difficult for crops to grow on salinized land, and under the circumstances of increasing population and decreasing arable land, the agricultural development of salinized land will increase. Its utilization rate is an important way to relieve soil pressure. [0003] At present, researching and developing various products and applying them in crop management to improve the salt tolerance of plants is one of the methods to realize the agricultural development of salinized land. As one of the essential trace elements for crops, manganese element has been shown to play an important role in improving the salt tolerance of plants. Li Wenxia found in the study ...

Claims

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Application Information

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IPC IPC(8): C05G3/50C05G5/20C01G45/02B82Y40/00B82Y30/00
CPCC05D9/02C05G3/50C05G5/20C01G45/02B82Y40/00B82Y30/00C01P2004/04C01P2002/85C01P2004/64
Inventor 吴洪洪李召虎刘家浩顾江江胡金吴晗曹菲菲
Owner HUAZHONG AGRI UNIV
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