CN106278558A - A kind of selenium-rich slow release resistance cadmium agent and preparation method thereof - Google Patents
A kind of selenium-rich slow release resistance cadmium agent and preparation method thereof Download PDFInfo
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- CN106278558A CN106278558A CN201610606393.XA CN201610606393A CN106278558A CN 106278558 A CN106278558 A CN 106278558A CN 201610606393 A CN201610606393 A CN 201610606393A CN 106278558 A CN106278558 A CN 106278558A
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F5/00—Fertilisers from distillery wastes, molasses, vinasses, sugar plant or similar wastes or residues, e.g. from waste originating from industrial processing of raw material of agricultural origin or derived products thereof
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/80—Soil conditioners
Abstract
The present invention relates to a kind of resistance cadmium agent, specific design one selenium-rich slow release resistance cadmium agent and preparation method thereof.Selenium-rich slow release of the present invention resistance cadmium agent, is made up of following parts by weight ingredient: selenium-enriched nano soil material 15～25 parts, fermented organic material 70～85 parts, middle and trace element 1～3 parts.The invention provides the resistance cadmium agent of a kind of selenium-enriched nano with nano material as carrier, there is efficiently resistance cadmium and the feature of high-efficient selenium-rich, crop yield can be greatly improved while substantially reducing crop cadmium content, producing Se-rich farm products.The above-mentioned comprehensive effect of the present invention can reduce controls cadmium cost, raising crop yield and quality, to ensureing state's grain and food safety and body health of people important in inhibiting.
Description
Technical field
The present invention relates to a kind of resistance cadmium agent, specific design one selenium-rich slow release resistance cadmium agent and preparation method thereof.
Background technology
Cadmium is the metallic element that a kind of toxicity is the strongest, has the disguise of stronger animal migration and plant absorption, is referred to as
" life public enemy ", can gradually accumulate in the systems such as liver, kidney, skeleton, lung after entering human body by food chain, be difficult to be metabolized
Fall.Cadmium is accumulated to a certain extent in human body, Cadmium Body can be caused to be poisoned, cause alimentary canal mucous membrane to stimulate, and occurs feeling sick, vomitting
Tell, suffer from diarrhoea, suffer from abdominal pain, the symptom such as tic, the dirty organ that waits of the kidney,spleen,liver of damage people, also can cause degradation under anemia, reproductive function.
Severe poisoning can cause " Itai-itai diseases ", even other complication occur and dead.Cadmium is strong carcinogen, moreover it is possible to cause lung, front
Row gland and the malignant tumor of testis.
The cadmium in 12 kinds of hazardous substances of global significance that has of United Nations Environment Programme's proposition in 1984 is listed in first place.
Developing rapidly of the modern industries such as ore extraction, metal smelt, chemical industry manufacture, has caused soil, water Cd pollution gradually to increase the weight of.
It is reported, the annual cadmium entered in soil in the whole world is up to more than 20,000 tons at present.In recent years, China's heavy metal pollution of soil event frequency
Sending out, the situation is tense.
Administering heavy metal pollution of soil is world-famous puzzle, contaminated by heavy metals soil, naturally repairs needs hundreds of even
More than one thousand years.At present, China administer Cadmium Pollution in Soils method, be broadly divided into physics (such as soil moved in improve the original method etc.), chemistry (adsorb, be passivated
Deng), the method such as biological (phytoremediation, microorganism).By the method such as changing, improve the soil, although effect is obvious, but put into too big, work
Journey amount is huge, with high costs, is suitable only for the improvement of local pollution；By the methods such as soil application Calx regulate soil pH or
The approach such as Eh reduce the biological effectiveness of Cadmium in Soil, control the methods such as the chemisorbed of crop Cd accumulation, passivation, due to soil
In the heavy metal such as cadmium be in dynamic equilibrium, as long as cadmium is in soil, it is possible in the case of human intervention weakens, with soil
The change of environment is again activated and enters food chain, meanwhile, when the material addition of change soil environment is the biggest, it is also possible to deposit
Destroyed at the original ecological balance of soil, caused the risk of soil secondary pollution；Although phytoremediation economy, environmental protection, but
Fairly large change planting habit and kind, popularization is still had any problem；Biological method benefit is obvious, but microbes screening and culturing expanding propagation,
The factors such as the living environment of microorganism own, cause regulation effect often big rise and fall.In these methods, also tend to exist and administer weight
While cadmium metal pollutes, cause the problem that crop yield declines.
Selenium is the beneficial element of plant growing, is also natural antidote, and some poisonous and harmful ion is had natural removing toxic substances
Effect, can combine with poisonous metal in vivo, forms the complex of metal-selenium-protein, carcinogenic for energy
Harmful heavy metal is directly got rid of external, or gets rid of external from bile secretion, has cleared up the toxicity of metal ion, has played detoxication and toxicant eliminating function
Effect.Crops pass through appropriate selenium supplement, can reduce the harm of poisonous and harmful heavy metallic ion pair crops in soil, reduce
The content of crop heavy metal, can gather in the crops again high-quality Se-rich farm products.Selenium enters human body through food chain, it is achieved organic selenium supplement with
Profit protection health.
Application No. " 201210584832.3 ", discloses the preparation of a kind of plant selenium-rich fall cadmium ecoalimental conditioner,
Be specially potassium humate, phosphorus are joined potassium dihydrogen, sodium borate, potassium fulvate, JFC, DA-6 put in compounding tank according to weight proportion,
After motor stirrer stirring 5min, add the stirring 5min mixing of selenite motor stirrer.This invention can realize richness
Selenium fall cadmium, but selenium is as the beneficial element of plant growing, has a prominent feature, i.e. shows low rush height and presses down phenomenon.Research
Show, even the plant rich in selenium higher to selenium tolerance level, such as Bulbus Allii, be 10mg L executing selenium mass concentration-1Time, also can
Show suppression obvious to plant growing.Cadmium, in soil, can present different conditions, such as along with the change of soil environment
The change of pH value, the change of Eh value, all can the effectiveness of cadmium in the appreciable impact soil liquid, and this change is and plant growing
Different time sections be associated.At the plant growing initial stage, when selenium concentration in being manured into soil is excessive, plant can be suppressed in seedling stage
Growth, causes crop failure；If selenium concentration is the least, to plant growing animated period, when cadmium activity and dissolubility increase, a small amount of
Selenium be not enough on suppression cadmium activity make a significant impact, and, selenium when Cadmium in Soil is not activated in a large number, also can with in soil
Other cationoid reactions, to such an extent as to affect its resistance cadmium effect.
Research and development one has a good resistance cadmium effect, and can realize the resistance cadmium agent of crop selenium-rich, volume increase, to ensureing country simultaneously
Grain and food safety and body health of people important in inhibiting.
Summary of the invention
First technical problem to be solved by this invention is to provide a kind of with nano structural material as carrier, it is possible to achieve
Efficiently hinder cadmium selenium-rich and improve the selenium-rich slow release resistance cadmium agent of crop yield.
One selenium-rich slow release of the present invention resistance cadmium agent, is made up of following parts by weight ingredient: selenium-enriched nano soil material 15～25
Part, fermented organic material 70～85 parts, middle and trace element 1～3 parts.
A kind of selenium-rich slow release resistance cadmium agent described above, wherein said selenium-enriched nano soil material prepared by following steps and
Become:
A, by 125～200 weight portion natural nano structured soil materials dry, pulverized 325 mesh sieves, and added water and make solid-liquid
Than the slip for 1:3～5；
B, slip is heated to 70～80 DEG C, adds inorganic selenium salt and ascorbic aqueous solution, stirring mixing 10～
30min, adds 10～25 parts by weight of inorganic acid, and regulation pH value is to 6.0～6.5, and stirring mixes 0.5～1h；
C, add pillared dedicated treating liquid, at 85～100 DEG C, solution ph 5.2～5.8 times, stirring mixing 2～3h,
Carry out pillared reaction, filter, be dried, pulverize, to obtain final product.
A kind of selenium-rich slow release resistance cadmium agent described above, wherein said inorganic selenium salt and ascorbic aqueous solution are by following
Parts by weight ingredient is mixed with and forms: inorganic selenium salt 0.08～0.15 part, vitamin C 0.75～1 part, water 15～20 parts.
Further, a kind of selenium-rich slow release resistance cadmium agent described above, wherein said natural nano structured soil material is sodium
At least one in base bentonite, calcium-base bentonite, zeolite, meerschaum, Paligorskite.
Further, a kind of selenium-rich slow release resistance cadmium agent described above, wherein said inorganic selenium salt is sodium selenite, Monohydrated selenium dioxide
At least one in potassium.
Further, a kind of selenium-rich slow release resistance cadmium agent described above, wherein said mineral acid is in sulphuric acid, phosphoric acid, selenic acid
At least one.
A kind of selenium-rich slow release resistance cadmium agent described above, wherein said pillared dedicated treating liquid be prepared by following methods and
Become: 20 weight portion calcium monofluorophosphate. and 18～25 weight portion ardealites are joined in the water of 70～100 weight portions, stir,
Add 20～25 weight portions, the sulphuric acid of 93wt% and 5～10 weight portions, the phosphoric acid of 85wt%, at 90～100 DEG C, react 1h,
Adding ammonia 40～55 weight portion, drop to 65～75 DEG C at a temperature of question response, pH value rises to 5.3～5.7, and stirring and evenly mixing to obtain final product.
A kind of selenium-rich slow release resistance cadmium agent described above, wherein said fermented organic material is prepared from by following methods: press
Weight portion, by waste bacterial slag and green manure 80～90 parts, coal slime 5～15 parts, fermented bacterium 1.5～2.5 parts, uniformly mixes, and ferments 35
～45 days, heap temperature≤70 DEG C, germination index ＞ 80%, to obtain final product.
A kind of selenium-rich slow release resistance cadmium agent described above, wherein said middle and trace element is made up of following parts by weight ingredient:
Zinc sulfate 3～5 parts, magnesium sulfate 2～4 parts, calcium ammonium nitrate 1～2.5 parts, manganese sulfate 0.5～1.5 parts, copper sulfate 0.5～1.5 parts,
Borax 0.2～1.0 parts, ammonium molybdate 0.1～1.0 parts.
Second technical problem to be solved by this invention is to provide the preparation method of a kind of selenium-rich slow release resistance cadmium agent.
The preparation method of above-mentioned a kind of selenium-rich slow release resistance cadmium agent, is specially selenium-enriched nano soil material, fermented organic
Material and middle and trace element, according to weight ratio 15～25:70～85:1～3, stirring mixing, to obtain final product.
The invention provides the resistance cadmium agent of a kind of selenium-rich slow release with nanostructured soil material as carrier, have and efficiently hinder cadmium
With the feature of high-efficient selenium-rich, can be greatly improved while substantially reducing crop cadmium content, producing Se-rich farm products and make produce
Amount.The above-mentioned comprehensive effect of the present invention can reduce controls cadmium cost, raising crop yield and quality, to ensureing national food and food
Safety and body health of people have great significance.
Accompanying drawing explanation
Fig. 1 selenium-rich slow release resistance cadmium agent producing process flow chart.
Detailed description of the invention
One selenium-rich slow release of the present invention resistance cadmium agent, is made up of following parts by weight ingredient: selenium-enriched nano soil material 15～25
Part, fermented organic material 70～85 parts, middle and trace element 1～3 parts.
A kind of selenium-rich slow release resistance cadmium agent described above, wherein said selenium-enriched nano soil material prepared by following steps and
Become:
A, by 125～200 weight portion natural nano structured soil materials dry, pulverized 325 mesh sieves, and added water and make solid-liquid
Than the slip for 1:3～5；
B, slip is heated to 70～80 DEG C, adds inorganic selenium salt and ascorbic aqueous solution, stirring mixing 10～
30min, adds 10～25 parts by weight of inorganic acid, and regulation pH value is to 6.0～6.5, and stirring mixes 0.5～1h；
C, add pillared dedicated treating liquid, at 85～100 DEG C, solution ph 5.2～5.8 times, stirring mixing 2～3h,
Carry out pillared reaction, filter, be dried, pulverize, to obtain final product.
The selenium-enriched nano soil material generated after pillared reaction, increases natural nano structured soil material stratiform silicon
Benefit materials in the interlamellar spacing of hydrochlorate, beneficially middle and trace element and fermented organic material can be at Inter layer adsorption so that rich
Selenium nanometer soil material possesses improvement soil, water-retention, storage fertilizer and the function of slow release liquid manure.
A kind of selenium-rich slow release resistance cadmium agent described above, wherein said inorganic selenium salt and ascorbic aqueous solution are by following
Parts by weight ingredient is mixed with and forms: inorganic selenium salt 0.08～0.15 part, vitamin C 0.75～1 part, water 15～20 parts.
Further, a kind of selenium-rich slow release resistance cadmium agent described above, wherein said natural nano structured soil material is sodium
At least one in base bentonite, calcium-base bentonite, zeolite, meerschaum, Paligorskite.
Further, a kind of selenium-rich slow release resistance cadmium agent described above, wherein said inorganic selenium salt is sodium selenite, Monohydrated selenium dioxide
At least one in potassium.
Further, a kind of selenium-rich slow release resistance cadmium agent described above, wherein said mineral acid is in sulphuric acid, phosphoric acid, selenic acid
At least one.
A kind of selenium-rich slow release resistance cadmium agent described above, wherein said pillared dedicated treating liquid be prepared by following methods and
Become: 20 weight portion calcium monofluorophosphate. and 18～25 weight portion ardealites are joined in the water of 70～100 weight portions, stir,
Add 20～25 weight portions, the sulphuric acid of 93wt% and 5～10 weight portions, the phosphoric acid of 85wt%, at 90～100 DEG C, react 1h,
Adding ammonia 40～55 weight portion, drop to 65～75 DEG C at a temperature of question response, pH value rises to 5.3～5.7, and stirring and evenly mixing to obtain final product.
A kind of selenium-rich slow release resistance cadmium agent described above, wherein said fermented organic material is prepared from by following methods: press
Weight portion, by waste bacterial slag and green manure 80～90 parts, coal slime 5～15 parts, fermented bacterium 1.5～2.5 parts, uniformly mixes, and ferments 35
～45 days, heap temperature≤70 DEG C, germination index ＞ 80%, to obtain final product.Fermented bacterium uses commercially available conventional strain.
A kind of selenium-rich slow release resistance cadmium agent described above, wherein said middle and trace element is made up of following parts by weight ingredient:
Zinc sulfate 3～5 parts, magnesium sulfate 2～4 parts, calcium ammonium nitrate 1～2.5 parts, manganese sulfate 0.5～1.5 parts, copper sulfate 0.5～1.5 parts,
Borax 0.2～1.0 parts, ammonium molybdate 0.1～1.0 parts.
The present invention uses nano intercalated, the fertile pillared technology of salt, by natural nano structured soil material layered silicate
Between nanoscale reaction, regulation technological parameter makes nm regime Se particle enter between silicate layer adsorbed, parcel, and is executing
After entering soil, along with the growth of plant, utilize the feature of the controllable release of nano layered silicate, at secretions from plant roots and
Slowly releasing under the effect of soil liquid Concentraton gradient change, the burst size making selenium is prosperous to growth from early growth period with plant
Sheng phase cadmium volume of activation curve matches, thus realizes efficiently resistance cadmium and plant selenium-rich in the case of ensureing plant normal growth；
Meanwhile, add formula rational fermented organic material and middle and trace element etc. and can promote the nutritional labeling of plant growing, realizing
While resistance cadmium selenium-rich, improve crop yield.
The key problem in technology of the present invention is the preparation of selenium-enriched nano soil material, wherein natural nano structured soil material warp
The fertile pillared technology of nano intercalated and salt makees modification, is formed to have to accommodate and adsorbs nm regime Se particle and other metals unit
Element also has the basic substance of nano-space structure of slow release feature, and this material with nano-space structure has soil simultaneously
Earth improvement, water-retention, storage fertilizer and the function of slow release liquid manure.
The preparation method of above-mentioned a kind of selenium-rich slow release resistance cadmium agent, is specially selenium-enriched nano soil material, fermented organic
Material and middle and trace element are according to weight ratio 15～25:70～85:1～3, stirring mixing, and observation material good mixing, color and luster are equal
Discharging, then quantitative package is got final product time even.
Below in conjunction with embodiment, the detailed description of the invention of the present invention is further described, the most therefore the present invention is limited
System is among described scope of embodiments.
Embodiment 1
1, the preparation (shown in accompanying drawing 1) of selenium-enriched nano soil material:
Prepare pillared dedicated treating liquid: 20Kg calcium monofluorophosphate. and ardealite 20Kg are added in 80Kg water, stir, add
The sulphuric acid of 25Kg, 93wt% and the phosphoric acid of 8Kg, 85wt% react 1h, ammonia 50Kg in 95 ± 5 DEG C, drop at a temperature of question response
70 ± 5 DEG C, pH value is raised to 5.5 ± 0.2, and stirring and evenly mixing is standby.
Prepare the aqueous solution of inorganic selenium salt and vitamin: inorganic selenium salt 100g, vitamin C 0.85Kg, water 18Kg, dissolve
Stir standby.
Prepare selenium-enriched nano soil material: dried, pulverized 325 mesh sieves by natural nano structured soil material 150Kg, add
Water makes the slip that solid-to-liquid ratio is 1:4, is heated to 70～80 DEG C, adds inorganic selenium salt and ascorbic aqueous solution, stirring mixing
25min, addition mineral acid 20Kg regulation pH value is to 6.0～6.5, and stirring mixes 1h.Add pillared dedicated treating liquid, be heated to
85～100 DEG C, control solution ph 5.2～5.8 stirring mixing 2.5h, filter, be dried, pulverize after standby.
2, the preparation of fermented organic material:
By weight by waste bacterial slag and 87.5 parts of green manure, coal slime 10 parts, fermented bacterium 2.5 parts, uniformly mix, then enter
Row fermentation, fermentation time 35 days, heap temperature is less than 70 DEG C, and germination index is more than 80%, obtains fermented organic material standby.
3, the preparation of middle and trace element:
By weight, 4 parts of zinc sulfate, 2.5 parts of magnesium sulfate, calcium ammonium nitrate 1.5 parts, manganese sulfate 1 part, 0.5 part of copper sulfate,
Borax 0.3 part, 0.2 part of mix homogeneously of ammonium molybdate.
4, by the above-mentioned each component prepared by selenium-enriched nano soil material 20 parts, 78 parts of fermented organic material, in, trace
The weight proportion that element is 2 parts stirs mixing in mixer, after observation material good mixing, uniform color, and discharging, quantitatively wrap
Dress.Shown in process chart as accompanying drawing 1.
Field test:
Material to be tested: selenium-rich slow release resistance cadmium agent.
Experimental cultivar: late rice (excellent fragrant No.).
Test site: zhuzhou,hunan somewhere, Cadmium in Soil background value 2.0mg/Kg.
Process and arrange: process A: mu and execute the resistance cadmium agent 80 kilograms of selenium-rich slow release；Process CK: do not execute the resistance cadmium agent of selenium-rich slow release.
The using method of selenium-rich slow release resistance cadmium agent: before ploughing, mixes the resistance cadmium agent of selenium-rich slow release with base fertilizer, uniformly spreads fertilizer over the fields
After, then plough, the resistance cadmium agent of selenium-rich slow release is ploughed under in soil.
This test in June 20 sow, July 18 bu Seedling, July 28 transplant, process A and process B respectively execute 50 kilograms/
Mu compound fertilizer makees base fertilizer, and in addition to processing A and enriching the resistance cadmium agent of selenium-rich slow release, other way to manages are identical, and October 19 gathered in,
Survey product, sampling during harvesting, sample cadmium, Se content are detected.The results are shown in Table shown in 1:
The impact on Oryza sativa L. cadmium, Se content and yield of table 1 different disposal
By being analyzed data in table 1, mu is executed the resistance cadmium agent 80 kilograms of selenium-rich slow release and is compared and do not execute selenium-rich slow release
Resistance cadmium agent, the cadmium content of Oryza glutinosa decreases 113mg/Kg, reduces ratio 51.8%, and Oryza glutinosa cadmium content is less than " GB 2762
2012 national food safety standard pollutants in foods limitations " in limit standard to Oryza glutinosa cadmium content 0.2mg/Kg, and do not execute
Oryza glutinosa with the resistance cadmium agent of selenium-rich slow release is the most up to standard；Mu execute selenium-rich slow release resistance cadmium agent 80 kilograms compare do not execute selenium-rich slow release resistance cadmium
Agent, Oryza glutinosa Se content adds 0.0698mg/Kg, and increase ratio reaches 200%, and reaches " GBT 22499-2008 selenium-rich Oryza glutinosa "
To the requirement of Se content in selenium-rich Oryza glutinosa；Mu execute selenium-rich slow release resistance cadmium agent 80 kilograms compare do not execute selenium-rich slow release resistance cadmium agent, Oryza sativa L.
Per mu yield add 130.6 kilograms, amount of increase in production 26.2%.Visible, the resistance cadmium agent of selenium-rich slow release has and significantly reduces Oryza sativa L.
Middle cadmium content, and improve the effect of Oryza sativa L. Se content and yield.
Embodiment 2
1, the preparation of selenium-enriched nano soil material:
Prepare pillared dedicated treating liquid: 20Kg calcium monofluorophosphate. and ardealite 20Kg are added in 80Kg water, stir, add
The sulphuric acid of 25Kg, 93wt% and the phosphoric acid of 8Kg, 85wt% react 1h, ammonia 50Kg in 95 ± 5 DEG C, drop at a temperature of question response
70 ± 5 DEG C, pH value is raised to 5.5 ± 0.2, and stirring and evenly mixing is standby.
Prepare the aqueous solution of inorganic selenium salt and vitamin: inorganic selenium salt 100g, vitamin C 0.85Kg, water 18Kg, dissolve
Stir standby.
Prepare selenium-enriched nano soil material: dried, pulverized 325 mesh sieves by natural nano structured soil material 150Kg, add
Water makes the slip that solid-to-liquid ratio is 1:4, is heated to 70～80 DEG C, adds inorganic selenium salt and ascorbic aqueous solution, stirring mixing
25min, addition mineral acid 20Kg regulation pH value is to 6.0～6.5, and stirring mixes 1h.Add pillared dedicated treating liquid, be heated to
85～100 DEG C, control solution ph 5.2～5.8 stirring mixing 2.5h, filter, be dried, pulverize after standby.
2, the preparation of fermented organic material:
By weight by waste bacterial slag and 87.5 parts of green manure, coal slime 10 parts, 2.5 parts of uniform mixing of fermented bacterium, then enter
Row fermentation, fermentation time 35, heap temperature is less than 70 DEG C, and germination index is more than 80%, obtains fermented organic material standby.
3, the preparation of middle and trace element:
By weight, 3.5 parts of zinc sulfate, 2.5 parts of magnesium sulfate, calcium ammonium nitrate 1.5 parts, manganese sulfate 1.2 parts, copper sulfate
0.6 part, Borax 0.4 part, 0.3 part of mix homogeneously of ammonium molybdate.
4, by the above-mentioned each component prepared by selenium-enriched nano soil material 18 parts, 79.5 parts of fermented organic material, in, micro-
The weight proportion that secondary element is 2.5 parts stirs mixing in mixer, after observation material good mixing, uniform color, and discharging, quantitatively
Packaging.
Field test:
Material to be tested: selenium-rich slow release resistance cadmium agent.
Experimental cultivar: long peppery No. 7.
Test site: zhuzhou,hunan somewhere, Cadmium in Soil background value 1.49mg/Kg.
Process and arrange: use randomized block experiment design, process A: mu and execute selenium-enriched nano resistance cadmium agent 80 kilograms；Process CK:
Do not execute the resistance cadmium agent of selenium-rich slow release.
The using method of selenium-rich slow release resistance cadmium agent: spread manuer in holes before Fructus Capsici is transplanted.
This is tested and transplanted May 10, and July 16, sampling censorship, detected sample cadmium, Se content；Adopt every time
Yield is recorded after receipts.Process A and process B respectively to execute 50 kgs/acre of compound fertilizer and make base fertilizer, enrich the resistance cadmium agent of selenium-rich slow release except processing A
Outward, other way to manages are identical.
The impact on Fructus Capsici cadmium, Se content and yield of table 2 different disposal
Data in table 2 are analyzed understand, mu execute selenium-rich slow release resistance cadmium agent 80 kilograms compare do not execute selenium-rich slow release resistance cadmium
Agent, the cadmium content of Fructus Capsici decreases 0.021mg/Kg, and minimizing ratio is 50%；Mu is executed the resistance cadmium agent 80 kilograms of selenium-rich slow release and is compared not
Executing the resistance cadmium agent of selenium-rich slow release, the Se content of Fructus Capsici adds 0.03003mg/Kg, and increase ratio is 359%；Mu executes selenium-enriched nano
Resistance cadmium agent 80 kilograms is compared and is not executed the resistance cadmium agent of selenium-rich slow release, and the per mu yield of Fructus Capsici adds 309.1 kilograms, and amount of increase in production is
22.9%.Visible, the resistance cadmium agent of selenium-rich slow release has and significantly reduces cadmium content in Fructus Capsici, and improves Fructus Capsici Se content and yield
Effect.
Claims (10)
1. selenium-rich slow release resistance cadmium agent, it is characterised in that be made up of following parts by weight ingredient: selenium-enriched nano soil material 15～
25 parts, fermented organic material 70～85 parts, middle and trace element 1～3 parts.
A kind of selenium-rich slow release resistance cadmium agent, it is characterised in that: described selenium-enriched nano soil material by with
Lower step is prepared from:
A, 125～200 weight portion natural nano structured soil materials are dried, pulverized 325 mesh sieves, and added water and make solid-to-liquid ratio and be
The slip of 1:3～5；
B, slip is heated to 70～80 DEG C, adds inorganic selenium salt and ascorbic aqueous solution, stirring mixing 10～30min, add
Entering 10～25 parts by weight of inorganic acid, regulation pH value is to 6.0～6.5, and stirring mixes 0.5～1h；
C, add pillared dedicated treating liquid, at 85～100 DEG C, solution ph 5.2～5.8 times, stirring mixing 2～3h, carry out
Pillared reaction, filters, is dried, pulverizes, to obtain final product.
A kind of selenium-rich slow release resistance cadmium agent, it is characterised in that: described inorganic selenium salt and ascorbic
Aqueous solution is to be mixed with by following parts by weight ingredient to form: inorganic selenium salt 0.08～0.15 part, vitamin C 0.75～1 part,
Water 15～20 parts.
A kind of selenium-rich slow release resistance cadmium agent, it is characterised in that: described natural nano structured soil material
For at least one in sodium bentonite, calcium-base bentonite, zeolite, meerschaum, Paligorskite.
A kind of selenium-rich slow release resistance cadmium agent, it is characterised in that: described inorganic selenium salt be sodium selenite,
At least one in potassium selenite.
A kind of selenium-rich slow release resistance cadmium agent, it is characterised in that: described mineral acid is sulphuric acid, phosphoric acid, selenium
At least one in acid.
A kind of selenium-rich slow release resistance cadmium agent, it is characterised in that: described pillared dedicated treating liquid be by with
Lower section method is prepared from: 20 weight portion calcium monofluorophosphate. and 18～25 weight portion ardealites join the water of 70～100 weight portions
In, stir, add 20～25 weight portions, the sulphuric acid of 93wt% and 5～10 weight portions, the phosphoric acid of 85wt%, in 90～100
Reacting 1h at DEG C, add ammonia 40～55 weight portion, drop to 65～75 DEG C at a temperature of question response, pH value rises to 5.3～5.7, stirs
Mix mixing, to obtain final product.
A kind of selenium-rich slow release resistance cadmium agent, it is characterised in that: described fermented organic material is by with lower section
Method is prepared from: by weight by waste bacterial slag and green manure 80～90 parts, coal slime 5～15 parts, fermented bacterium 1.5～2.5 parts, all
Even mixing, ferments 35～45 days, heap temperature≤70 DEG C, and germination index ＞ 80% to obtain final product.
A kind of selenium-rich slow release resistance cadmium agent, it is characterised in that: described middle and trace element is by following
Parts by weight ingredient forms: zinc sulfate 3～5 parts, magnesium sulfate 2～4 parts, calcium ammonium nitrate 1～2.5 parts, manganese sulfate 0.5～1.5 parts, sulfur
Acid copper 0.5～1.5 parts, Borax 0.2～1.0 parts, ammonium molybdate 0.1～1.0 parts.
10. the preparation method of a kind of selenium-rich slow release resistance cadmium agent described in any one of claim 1～9, it is characterised in that: selenium-rich is received
Rice soil material, fermented organic material and middle and trace element mix, i.e. according to weight ratio 15～25:70～85:1～3, stirring
?.
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| CN108640802A (en) * | 2018-08-11 | 2018-10-12 | 薛合伦 | A kind of matrimony vine special fertilizer of resisting drought saving water and preparation method thereof |
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| CN113636890A (en) * | 2021-09-18 | 2021-11-12 | 成都正光投资集团有限公司 | Selenium-rich slow-release cadmium inhibitor and preparation method thereof |
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