CN103224427A - Foliage selenium fertilizer with slow release effect - Google Patents

Abstract

The invention provides a foliage selenium fertilizer with slow release effect and preparation method thereof. The fertilizer contains the following components: selenium fertilizer 1-3 parts; trace element 1-5 parts; surfactant 1-5 parts; borax 3-6 parts; polyvinyl alcohol 50-60 parts; Cabopu 2-5 parts and carboxymethylcellulose sodium 5-10 parts. The invention has a reasonable composition, and the selenium fertilizer can be mixed with other fertilizers for absorbing selenium fertilizer and improving fertilizer efficiency. In addition, the slow release pellicle can be directly attached to the foliage, thereby not only the adhesiveness is enhanced, but also the selenium fertilizer and other nutrient compositions can be slowly released, which is good for absorption of foliage.

Description

A kind of blade face selenium fertilizer with slow releasing function

 

Technical field

The present invention relates to a kind of foliar nutrient, be specifically related to a kind of blade face selenium fertilizer with slow releasing function.

Background technology

Selenium is the required a kind of beneficial element of higher plant, and an amount of supplement selenium can strengthen the resistance of plant, increases organic accumulation, reaches the purpose of volume increase.At present principal mode is that soil is executed selenium fertilizer, change but the selenium of biological available state is subjected to the influence of soil pH easily in soil, and at meta-acid with partially under the reductive condition, selenate reduction reaction easily takes place exists, and becomes the selenium of the element state that can not be utilized by plant absorbing.

Because plant also can absorb nutrient by blade except mainly absorbing the nutrition supply growth and development of plants by root system.In order to improve the utilization ratio of selenium fertilizer, the existing normal foliage fertilizer that adopts can replenish the deficiency that root applies fertilizer on the one hand, and fertilizer efficiency is given full play in nutrition rapidly on the other hand.As application number is that the Chinese patent application of 200510017953.X discloses selenium-enriched foliage fertilizer, but does not see the page fertilizer that can realize the slowly-releasing assimilation effect.

Summary of the invention

The object of the present invention is to provide a kind of blade face selenium fertilizer with slow releasing function.

Another kind of purpose of the present invention provides a kind of preparation method of this blade face selenium fertilizer.

Technical scheme: the objective of the invention is to realize by following scheme:

A kind of slowly-releasing blade face selenium fertilizer is got by following feedstock production: the fertile 1-3 part of selenium, micro-1-5 part, tensio-active agent 1-5 part, borax 3-6 part, polyvinyl alcohol 50-60 part, card wave spectrum 2-5 part, Xylo-Mucine 5-10 part.

Further, used selenium fertilizer is any one or the two or more arbitrary combination in selenite, selenium mineral powder, the selenate.

Further, used trace element is any one or the two or more arbitrary combination in ferrous sulfate, manganous sulfate, the vitriolate of tartar.

Further, used tensio-active agent is tween 80 or glycerin fatty acid ester.

A kind of preparation method with blade face selenium fertilizer of slow releasing function comprises following steps:

(1) polyvinyl alcohol, card wave spectrum, Xylo-Mucine are placed container, soak and spend the night, fully after the swelling, heating in water bath filters to 90-95 ℃ of stirring and dissolving, and the degassing gets solution A;

(2) in solution A, add tensio-active agent, stir, get solution B;

(3) in solution B, add selenium fertilizer, trace element, borax, be poured over after stirring on the sheet glass of temperature unanimity, drying, cooling, demoulding cutting.

Beneficial effect:

1, reasonable recipe of the present invention is used selenium fertilizer with other fertilizer, help the absorption of selenium fertilizer, improves fertilizer efficiency.

2, sustained release film formulation of the present invention directly is attached to the blade face, not only strengthens its tack, and nutritive ingredient such as selenium fertilizer is slowly discharged, and helps Foliage Absorption, reduces fertilizer application frequency.

Embodiment

Form by the following examples, foregoing of the present invention is described in further detail again, but the scope that this should be interpreted as this bright above-mentioned theme only limits to following example, and all technology that realizes based on foregoing of the present invention all belong to scope of the present invention.

The source of used main raw material among the embodiment:

1, selenite, selenium mineral powder, selenate: Hangzhou chemical industry trade Co., Ltd in million mornings;

2, ferrous sulfate: Wuxi City Kai Er Chemicals company limited;

3, manganous sulfate: the new precious Fine Chemical Works in Shanghai;

4, vitriolate of tartar: Nanjing Chemistry Reagent Co., Ltd.;

5, tween 80: the sincere auspicious Chemical Industry Science Co., Ltd in Zhengzhou;

6, glycerin fatty acid ester: the sincere auspicious Chemical Industry Science Co., Ltd in Zhengzhou.

7, borax: a day chemical industry company limited is pleased in Nanjing.

Embodiment 1

1, prescription:

3 parts of 1 part of boraxs of 1 part of tween 80 of 1 part of vitriolate of tartar of selenite

5 parts of 2 parts of Xylo-Mucines of polyvinyl alcohol 50 parts of cards wave spectrum

2, preparation method:

(1) 50 parts of polyvinyl alcohol, 2 parts of wave spectrums of card, Xylo-Mucine are placed container for 5 parts, soak and spend the night, fully after the swelling, heating in water bath to 95 ℃ stirring and dissolving is filtered, and the degassing gets solution A;

(2) in solution A, add 1 part of tween 80, stir, get solution B;

(3) in solution B, add 1 part of selenite, 1 part of vitriolate of tartar, 3 parts of boraxs, be poured over after stirring on the sheet glass of temperature unanimity, drying, cooling, demoulding cutting.

Embodiment 2

1, prescription:

6 parts of 5 parts of boraxs of 5 parts of glycerin fatty acid esters of 3 parts of manganous sulfates of selenate

10 parts of 5 parts of Xylo-Mucines of polyvinyl alcohol 60 parts of cards wave spectrum

2, preparation method:

(1) 60 parts of polyvinyl alcohol, 5 parts of wave spectrums of card, Xylo-Mucine are placed container for 10 parts, soak and spend the night, fully after the swelling, heating in water bath to 93 ℃ stirring and dissolving is filtered, and the degassing gets solution A;

(2) in solution A, add 5 parts of glycerin fatty acid esters, stir, get solution B;

(3) in solution B, add 3 parts of selenates, 5 parts of manganous sulfates, 6 parts of boraxs, be poured over after stirring on the sheet glass of temperature unanimity, drying, cooling, demoulding cutting.

Embodiment 3

1, prescription:

4 parts of 3 parts of boraxs of 2 parts of tween 80s of 2 parts of vitriolate of tartar of selenium mineral powder

8 parts of 3 parts of Xylo-Mucines of polyvinyl alcohol 55 parts of cards wave spectrum

2, preparation method:

(1) 55 parts of polyvinyl alcohol, 3 parts of wave spectrums of card, Xylo-Mucine are placed container for 8 parts, soak and spend the night, fully after the swelling, heating in water bath to 91 ℃ stirring and dissolving is filtered, and the degassing gets solution A;

(2) in solution A, add 3 parts of tween 80s, stir, get solution B;

(3) in solution B, add 2 parts of selenium mineral powders, 2 parts of vitriolate of tartar, 4 parts of boraxs, be poured over after stirring on the sheet glass of temperature unanimity, drying, cooling, demoulding cutting.

Embodiment 4

2 parts of 2 parts of manganous sulfates of 1.5 parts of ferrous sulfate of 1.5 parts of selenium mineral powders of selenite

55 parts of 5 parts of polyvinyl alcohol of 4 parts of boraxs of glycerin fatty acid ester

7 parts of 3 parts of Xylo-Mucines of card wave spectrum

2, preparation method:

(1) 55 parts of polyvinyl alcohol, 3 parts of wave spectrums of card, Xylo-Mucine are placed container for 7 parts, soak and spend the night, fully after the swelling, heating in water bath to 95 ℃ stirring and dissolving is filtered, and the degassing gets solution A;

(2) in solution A, add 4 parts of glycerin fatty acid esters, stir, get solution B;

(3) in solution B, add 1.5 parts of selenites, 1.5 parts of selenium mineral powders, 2 parts in ferrous sulfate, 2 parts of manganous sulfates, 5 parts of boraxs, be poured over after stirring on the sheet glass of temperature unanimity, drying, cooling, demoulding cutting.

Embodiment 5

Contrast the fertile and slowly-releasing blade face selenium fertilizer of common blade face selenium

Sample 1: take by weighing 1.5 parts of selenites by weight, 1.5 parts of selenium mineral powders, 2 parts in ferrous sulfate, 2 parts of manganous sulfates, 5 parts of boraxs, all the other are water, constant speed stirs, and stirs 30min, leaves standstill after mixing, and sprays.

Sample 2-4: press embodiment 1-4 preparation.

Implementation method: sample 1 and sample 2-4 are sprayed respectively in 20 strain cucumber, and test is except that fertilising, and other control measures are with general green cucumber.

Experimental result: see Table 1.

Table 1 experimental result

Fertilizer type	Fertilizer application frequency	Average every joint knot melon quantity (individual/joint)
			Sample 1	4	3.3
Sample 2	2	3.2
			Sample 3	2	3.5
Sample 4	2	3.1
			Sample 5	2	3.7

This shows, adopt slowly-releasing blade face selenium fertilizer, can reduce fertilizer application frequency, labor savings is enhanced productivity.

Claims (5)

1. blade face selenium fertilizer with slow releasing function, it is characterized in that getting: the fertile 1-3 part of selenium, micro-1-5 part, tensio-active agent 1-5 part, borax 3-6 part, polyvinyl alcohol 50-60 part, card wave spectrum 2-5 part, Xylo-Mucine 5-10 part by following feedstock production.

2. a kind of blade face selenium fertilizer with slow releasing function according to claim 1 is characterized in that fertile any one or the two or more arbitrary combination in selenite, selenium mineral powder, the selenate of selenium.

3. a kind of blade face selenium fertilizer with slow releasing function according to claim 1 is characterized in that trace element is any one or two or more arbitrary combination in the ferrous sulfate, manganous sulfate, vitriolate of tartar.

4. a kind of blade face selenium fertilizer with slow releasing function according to claim 1 is characterized in that tensio-active agent is tween 80 or glycerin fatty acid ester.

5. one kind prepares claim 1 or 2 described a kind of methods with blade face selenium fertilizer of slow releasing function, it is characterized in that comprising following steps:

(1) polyvinyl alcohol, card wave spectrum, Xylo-Mucine are placed container, soak and spend the night, fully after the swelling, heating in water bath filters to 90-95 ℃ of stirring and dissolving, and the degassing gets solution A;

(2) in solution A, add tensio-active agent, stir, get solution B;

(3) in solution B, add selenium fertilizer, trace element, borax, be poured over after stirring on the sheet glass of temperature unanimity, drying, cooling, demoulding cutting.