CN104788190A

CN104788190A - Selenium enrichment crop special fertilizer and preparation method thereof

Info

Publication number: CN104788190A
Application number: CN201510172885.8A
Authority: CN
Inventors: 郑桂英; 龚天喜
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-04-14
Filing date: 2015-04-14
Publication date: 2015-07-22

Abstract

The invention discloses a selenium enrichment crop special fertilizer and a preparation method thereof. The selenium enrichment crop special fertilizer is prepared from the following components in parts by weight: 4-9 parts of manganese carbonate powder, 4-12 parts of manganese oxide powder, 27-75 parts of ammonium sulfate, 11-33 parts of sulfuric acid with the concentration of 33%, 0.02-0.05 part of selenium, 0.01-0.02 part of ammonium phosphate , 1-2 parts of sulfuric acid with the concentration of 98%, 0.002-0.004 part of sodium dimethyl dithiocarbamate, 0.003-0.006 part of hydrogen peroxide, 2-22 parts of urea, 2-18 parts of monoammonium phosphate and 2-16 parts of potassium sulphate. With respect of element components, the fertilizer not only contains three major elements of nitrogen, phosphorus and potassium, but also is rich in middle-micro fertilizers such as manganese, zinc, magnesium, calcium, silicon, ferrum, sulphur, boron, molybdenum and selenium, thereby being an overhead price fertilizer, when the effect of application of the fertilizer is compared with that of the application of traditional fertilizers, the selenium enrichment crop special fertilizer has the advantages that the production of crops is increased by 10-30% above, the quality is improved, the content of important microelements in crops necessary to the human body is increased by 10%, the content of harmful elements in soil is reduced by 5%, the content of selenium is greatly improved, and the national selenium supplement standard is reached.

Description

A kind of selenium-rich crops special fertilizer and preparation method thereof

Technical field

The invention belongs to fertilizer and preparation method, be specifically related to a kind of selenium-rich crops special fertilizer and preparation method thereof.

Background technology

China is a populous nation, and the production of grain and oil is the significant problem that people are concerned about always, and the yield and quality how improving farm crop is the inevitable requirement of social development.

The series of problems such as current proportion of crop planting fertilizer used mostly is large chemical fertilizer, and soil is because of life-time service, and heavy metal content increases, and causes soil knot tying, and soil fertility declines, and the nutritional quality of farm crop declines, yield poorly, anti-adversity ability is poor.

Meanwhile, area, 300,000,000 people that China has 14 to economize 72% lack selenium, and selenium is as the indispensable trace element of human body, and it is extremely urgent that the whole people mend selenium.And to mend selenium by the food such as grain and oil melon and fruit be that the widest one in universal face continues to mend selenium mode.

Therefore, be necessary to develop a kind of brand-new selenium-rich crops dedicated fertilizer, crop yield can be improved, improve soil, the national situation generally lacking selenium can also be improved simultaneously.

Summary of the invention

The object of the invention is for the deficiencies in the prior art, provide one can improve crop yield, improve soil, can be again crop selenium-rich crops special fertilizer providing selenium and other trace elements and preparation method thereof.

The technical scheme realizing the object of the invention employing is as follows:

Selenium-rich crops special fertilizer provided by the invention, is made up of the component of following weight part:

Carbonic acid manganese powder 4-9, oxidation manganese powder 4-12, ammonium sulfate 27-75,33% sulfuric acid 11-33, selenium 0.02-0.05, phosphorus ammonium 0.01-0.02,98% sulfuric acid 1-2, Sodium Dimethyldithiocarbamate 0.002-0.004, hydrogen peroxide 0.003-0.006, urea 2-22, monoammonium phosphate 2-18, potassium sulfate 2-16.

Be preferably:

Carbonic acid manganese powder 6, oxidation manganese powder 8, ammonium sulfate 42,33% sulfuric acid 21, selenium 0.035, phosphorus ammonium 0.015,90% sulfuric acid 1.5, Sodium Dimethyldithiocarbamate 0.003, hydrogen peroxide 0.006, urea 8, monoammonium phosphate 6, potassium sulfate 6.

The preparation method of selenium-rich crops special fertilizer provided by the invention, comprises the following steps:

1, according to said components proportioning, oxidation manganese powder is added in 33% sulfuric acid, after stirring 20-30 minute at 80-100 DEG C, add ammonium sulfate, at 70-80 DEG C, stir 20-30 minute again, finally add selenium and mix, generate selenium manganese liquid;

2, carbonic acid manganese powder, phosphorus ammonium, Sodium Dimethyldithiocarbamate are mixed with 98% sulfuric acid, at 110-120 DEG C, soak 10-12 hour, then hydrogen peroxide is added, soak 1-2 hour, remove the impurity in manganese ore, obtain useful middle micro element, stand-by after slaking, become fertilizer carrier;

3, selenium manganese liquid is mixed with the fertilizer carrier that step 2 generates, by press filtration, leach, purifying waste water point generates a sand shape mixture, obtains work in-process;

4, work in-process step 3 generated carry out drying, pulverizing at 60-80 DEG C;

5, urea, monoammonium phosphate, potassium sulfate are added in the material that step 4 generates and mix, make finished product.

Fertilizer of the present invention can be exclusively used in various farm crop, every mu of fertilising 100-150kg.

Beneficial effect

The present invention adopts oxidation manganese powder, sulfuric acid, ammonium sulfate, selenium mix and blend to generate the technique of selenium manganese liquid, selenium, manganese can be changed into trace element; Remove impurity by adding hydrogen peroxide after carbonic acid manganese powder, phosphorus ammonium, Sodium Dimethyldithiocarbamate, sulfuric acid mixing again, can obtain useful middle micro element, slaking obtains carrier, after purification moisture content ovendry power is broken, forms sand shape mixture, is more conducive to Crop; Finally add urea, monoammonium phosphate, potassium sulfate be mixed, make fertilizer of the present invention in element components, not only nitrogenous, phosphorus, potassium, three want element, are separately rich in micro-fertilizer in manganese, zinc, magnesium, calcium, silicon, iron, sulphur, boron, molybdenum, selenium etc.Therefore have the title of " full price fertilizer ".

Through testing proof for many years, using fertilizer of the present invention and executing traditional fertilizer and compare, crop can increase production more than 10-30%, and improves quality, and in crop, the important trace element of needed by human body can improve 10%, and soil harmful element reduces by 5%; Selenium content significantly improves, and reaches country and mends selenium standard.Se-rich farm products and processed food thereof, for 40 various diseases such as kinds cancer, cardiovascular diseases, white muscle disease, meals hepatic necrosis, have remarkable preventive and therapeutic effect.

Technical scheme of the present invention is further illustrated below by embodiment.

Embodiment

Selenium-rich crops special fertilizer of the present invention adopts the embodiment listed by table 1:

The preparation method of selenium-rich crops special fertilizer is carried out according to the following steps at the component in the various embodiments described above:

(1) oxidation manganese powder is added in 33% sulfuric acid, after stirring 20-30 minute at 80-100 DEG C, add ammonium sulfate, at 70-80 DEG C, stir 20-30 minute, finally add selenium and mix, generate selenium manganese liquid;

(2) carbonic acid manganese powder, phosphorus ammonium, Sodium Dimethyldithiocarbamate are mixed with 98% sulfuric acid, at 110-120 DEG C, soak 10-12 hour, then hydrogen peroxide is added, soak 1-2 hour, remove the impurity in manganese ore, obtain useful middle micro element, stand-by after slaking, become fertilizer carrier;

(3) fertilizer carrier that selenium manganese liquid and step (2) generate is mixed, by press filtration, leach, purifying waste water point generates a sand shape mixture, obtains work in-process;

(4) work in-process that step (3) generates are carried out drying, pulverizing at 60-80 DEG C;

(5) urea, monoammonium phosphate, potassium sulfate are added in the material that step (4) generates and mix, make selenium-rich crops special fertilizer finished product.

Verify by analysis, contained by selenium-rich crops special fertilizer, various composition is as table 2-table 4:

Table 2: macroelement

Composition	Organic	Nitrogen	Phosphorus	Potassium
					Quality %	7-8	1-10	1-10	1-10

Table 3: moderate-element:

Composition	Calcium	Magnesium	Sulphur	Silicon
					Quality %	5-8	2-5	6-8	5-8

Table 4: trace element:

Composition	Manganese	Germanium	Selenium	Molybdenum	Boron	Copper	Iron
								PPM	31668	0.137	31.9	11.02	141.98	54.1	23000

Experimental data

Choose the farmland of five pieces of same sizes, soil is sandy loam, and take rice terrace as experiment, wherein the fertilizer of the present embodiment 1,2,3,4 is used in experimental plot 1,2,3,4 respectively, using common sulfuric acid composite fertilizer with reference to field 5, is super hybridized rice for examination rice varieties.

With reference to Tanaka Mei Mu 180kg composite fertilizer, fertilizer 150kg of the present invention is executed in every mu, experimental plot, and result is as table 5:

Table 5

	crop selenium content (mg/kg)	appearance effect	effect of increasing production (%)
				experimental plot 1	0.236	paddy rice growing way is good, do not drape over one's shoulders leaf, very strong, strength foot, accelerates Grain Filling, reduces Empty grain rate, and the later stage discolors bright bar.	17%
experimental plot 2	0.265	paddy rice growing way is good, do not drape over one's shoulders leaf, very strong, strength foot, accelerates Grain Filling, reduces Empty grain rate, and the later stage discolors bright bar.	22%
				experimental plot 3	0.302	paddy rice growing way is good, do not drape over one's shoulders leaf, very strong, strength foot, accelerates Grain Filling, reduces Empty grain rate, and the later stage discolors bright bar.	26%
experimental plot 4	0.322	paddy rice growing way is good, do not drape over one's shoulders leaf, very strong, strength foot, accelerates Grain Filling, reduces Empty grain rate, and the later stage discolors bright bar.	31%
				with reference to field 5	0.033	growing way is comparatively slow, and have lodging phenomenon, Empty grain rate is more.	/

Selenium-rich crops special fertilizer of the present invention can not only increase production, provides utilization rate of fertilizer, can also significantly increase crop selenium content as can be seen from Table 5, therefore this Fertilizer nutrient is balanced, can promote that crop better grows, and improves edatope, improve crop yield and crop quality.

Above-described embodiment is only be described the preferred embodiment of the present invention, not limits the spirit and scope of the present invention.Under the prerequisite not departing from design concept of the present invention, the various modification that this area ordinary person makes technical scheme of the present invention and improvement, all should drop into protection scope of the present invention.

Claims

1. a selenium-rich crops special fertilizer, is characterized in that being made up of the component of following weight part:

2. selenium-rich crops special fertilizer according to claim 1, is characterized in that described component is:

3. the preparation method of selenium-rich crops special fertilizer according to claim 1, is characterized in that comprising the following steps:

1), according to described component proportion, oxidation manganese powder is added in 33% sulfuric acid, after stirring 20-30 minute at 80-100 DEG C, add ammonium sulfate, at 70-80 DEG C, stir 20-30 minute again, finally add selenium and mix, generate selenium manganese liquid;

2), by carbonic acid manganese powder, phosphorus ammonium, Sodium Dimethyldithiocarbamate mix with 98% sulfuric acid, at 110-120 DEG C, soak 10-12 hour, then hydrogen peroxide is added, soak 1-2 hour, remove the impurity in manganese ore, obtain useful middle micro element, stand-by after slaking, become fertilizer carrier;

3), by selenium manganese liquid and step 2) fertilizer carrier that generates mixes, by press filtration, leach, purifying waste water point generates a sand shape mixture, obtains work in-process;

4), the work in-process that step 3) generates are carried out drying, pulverizing at 60-80 DEG C;

5), by urea, monoammonium phosphate, potassium sulfate add in the material of step 4) generation and mix, make finished product.