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Slow-release leaf surface selenium fertilizer

A technology of selenium fertilizer and foliar surface, applied in fertilization device, fertilizer mixture, application, etc., can solve the problem of page fertilizer without slow-release absorption effect, and achieve the effect of facilitating nutrient absorption, expanding the adaptable surface, and improving fertilizer efficiency

Inactive Publication Date: 2013-08-14
SUZHOU GULI BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Be that the Chinese patent application of application number 200510017953.X discloses selenium-enriched foliage fertilizer, but there is no page fertilizer that can realize slow-release absorption effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 1. Prescription:

[0031] 1 part of selenite 1 part of ferrous sulfate 0.2 part of sodium nitrophenolate

[0032] Tween 80 1 part Polyvinyl alcohol 50 parts Carbomer 2 parts

[0033] Sodium carboxymethyl cellulose 5 parts

[0034] 2. Preparation method:

[0035] (1) Put 50 parts of polyvinyl alcohol, 2 parts of carbomer, and 5 parts of sodium carboxymethyl cellulose in a container, add water to soak overnight, fully swell, heat the water bath to 95°C and stir to dissolve, filter, degas, Get solution A;

[0036] (2) Add 1 part of Tween 80 to solution A and stir to obtain solution B;

[0037] (3) Add 1 part of selenite, 1 part of ferrous sulfate, and 0.2 part of sodium nitrophenolate into solution B, stir well, pour it on a glass plate with the same temperature, dry, cool, remove the film and cut.

Embodiment 2

[0039] 1. Prescription:

[0040] 2 parts of selenium ore powder, 1 part of manganese sulfate, 0.5 part of sodium nitrophenolate

[0041] 5 parts of fatty acid glyceride, 60 parts of polyvinyl alcohol, 5 parts of carbomer

[0042] Sodium carboxymethyl cellulose 10 parts

[0043] 2. Preparation method:

[0044] (1) Put 60 parts of polyvinyl alcohol, 5 parts of carbomer, and 10 parts of sodium carboxymethyl cellulose in a container, add water to soak overnight, fully swell, heat the water bath to 90°C and stir to dissolve, filter, degas, Get solution A;

[0045] (2) Add 5 parts of fatty acid glycerides into solution A and stir to obtain solution B;

[0046] (3) Add 2 parts of selenium ore powder, 1 part of manganese sulfate and 0.5 parts of sodium nitrophenolate into solution B, stir evenly, pour it on a glass plate with the same temperature, dry, cool, remove the film and cut.

Embodiment 3

[0048] 1. Prescription:

[0049] 1 part of selenate, 1 part of copper sulfate, 0.2 part of diethylaminoethanol caproic acid

[0050] 5 parts of fatty acid glyceride, 55 parts of polyvinyl alcohol, 2 parts of carbomer

[0051] Sodium carboxymethyl cellulose 7 parts

[0052] 2. Preparation method:

[0053] (1) Put 55 parts of polyvinyl alcohol, 2 parts of carbomer, and 7 parts of sodium carboxymethyl cellulose in a container, add water to soak overnight, fully swell, heat the water bath to 90°C and stir to dissolve, filter, degas, Get solution A;

[0054] (2) Add 5 parts of fatty acid glycerides into solution A and stir to obtain solution B;

[0055] (3) Add 1 part of selenate, 1 part of copper sulfate, and 0.2 part of diethylaminoethanol caproate into solution B, stir evenly, pour it on a glass plate with the same temperature, dry, cool, remove the film and cut.

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Abstract

The invention provides slow-release leaf surface selenium fertilizer and a preparation method thereof. The slow-release leaf surface selenium fertilizer comprises 1-2 parts of selenium fertilizer, 1-5 parts of microelements, 0.2-0.5 part of a growth adjusting agent, 1-5 parts of a surfactant, 50-60 parts of polyvinyl alcohol, 2-5 parts of Carbomer and 5-10 parts of sodium carboxymethylcellulose. The selenium fertilizer is matched with other fertilizer and a formula is reasonable, so that an adaptive range of the fertilizer is enlarged, the selenium fertilizer is easy to absorb, and the fertilizer effect is improved. With the adoption of the surfactant, a film agent is directly attached to a leaf surface, and thus the adhesive property of the slow-release leaf surface selenium fertilizer is improved; and furthermore, a slow-release film is prepared, so that nutritional components including the selenium fertilizer and the like can be slowly released and nutrition is easy to absorb.

Description

[0001] technical field [0002] The invention relates to a foliar fertilizer, in particular to a foliar selenium fertilizer with a slow-release effect. Background technique [0003] Selenium is a beneficial element required by higher plants. Supplementing an appropriate amount of selenium can enhance the stress resistance of plants, increase the accumulation of organic matter, and achieve the purpose of increasing production. At present, the main form is to apply selenium fertilizer to the soil, but the biologically available selenium in the soil is susceptible to changes due to the influence of soil pH, and under acidic and reducing conditions, selenate is prone to reduction reactions and becomes unavailable. Elemental Selenium is absorbed and utilized by plants. [0004] Because plants not only absorb nutrients mainly through the root system to supply plant growth and development, but also absorb nutrients through the leaves. In order to improve the utilization rate ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00
Inventor 吴娟
Owner SUZHOU GULI BIOTECH
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