CN104355685A - Special corn BB fertilizer suitable for mild cadmium and lead combined polluted calcareous soil - Google Patents
Special corn BB fertilizer suitable for mild cadmium and lead combined polluted calcareous soil Download PDFInfo
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- CN104355685A CN104355685A CN201410569185.8A CN201410569185A CN104355685A CN 104355685 A CN104355685 A CN 104355685A CN 201410569185 A CN201410569185 A CN 201410569185A CN 104355685 A CN104355685 A CN 104355685A
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- fertilizer
- corn
- soil
- cadmium
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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
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
Abstract
The invention discloses a special corn BB fertilizer suitable for a mild cadmium and lead combined polluted calcareous soil, and belongs to the technical field of fertilizers. The special corn BB fertilizer is an organic-inorganic bulk blend fertilizer and comprises the following effective ingredients according to mass percentage: 15% of nitrogen, 6% of phosphorus pentoxide, 6% of potassium oxide, 33% of sulfate radical, and 4% of humic acid. The BB fertilizer is blended from granular ammonium sulfate, diammonium phosphate and a humic acid compound fertilizer according to a certain proportion, is suitable for the mild cadmium and lead combined polluted calcareous soil, effectively inhibits the absorption and the transport of heavy metals, such as cadmium and lead, of the corn, reduces the bio-availability of cadmium and lead in the soil, promotes the growth of the corn, and guarantees the quality of the corn.
Description
Technical field
The present invention relates to technical field of fertilizer.
Background technology
In recent years, the soil contamination problem of long-term accumulated starts to appear, and presents the trend of increasingly sharpening, and partial area heavy metal pollution of soil hazardous events takes place frequently, serious threat is caused to agricultural product security and HUMAN HEALTH, causes the great attention of country and relevant departments.
The restorative procedure of heavy metal pollution of soil comprises traditional physics and chemistry method, as methods such as soil moved in improve the original method, Soil leaching, thermal desorption method, modifying agent method, electromotion repairing technique methods, its Principles is by dilution and fixing means, reduce heavy metal in soil ionic concn or change the existing forms of heavy metal in soil, thus reducing its transport property in soil and bioavailability.The shortcoming of these methods is that repair coverage is less, and cost is higher, and quantities is large, is difficult to realize, but also easily causes secondary pollution.Such as leaching method, its solvability strengthening heavy metal as EDTA by adding some strong solvents in soil, finally reclaims heavy metal from extracting solution.For this method, on the one hand tensio-active agent is expensive, on the other hand, need the tensio-active agent toxicity that ensures to add low, easily degrade, should be noted that the recovery of eluent, to avoid introducing secondary pollution simultaneously.Emerging biological restoration is the soil utilizing the absorption of plant (being mainly heavy metal super-enriched plant) and microorganism heavy metal, transhipment and internal metabolism etc. to act on repairing heavy metal pollution.The method has economy, environmental protection and efficient advantage relative to traditional restorative procedure, but in China, having a large population and a few land is unmodifiable objective fact, and we can not remove the agricultural soil of repairing heavy metal pollution by establishing in large scale Wild vegetation.Therefore, for in, light and heavy metals pollutes and still can plant the farmland of food crop, be more suitable for, on the basis not changing local farmers planting habit, repairing contaminated by heavy metals farmland by agronomic measures such as fertilisings, make agricultural-food meet state food safety standards.
Bulk blended fertilizer in bulk, English is Bulk Blending Fertilizer, and be called for short BB fertile, it is a kind of composite fertilizer by several granular single fertilizer or compound manure blending according to a certain percentage.The nutrient formula of BB fertilizer is on the basis considering crop nutrient uptake feature, proposes, existing science, again targetedly, be suitable for very much the farmland of above-mentioned heavy metal slight pollution with reference to local soil nutrient state of supply.
Patented technology at present in heavy metal pollution of soil agronomy reclamation activities relates to the Synthesis and applications of synthetic renovation agent mostly, and the patent documentation " adopt that fowl and animal excrement is the soil-repairing agent of raw material, preparation method and purposes " being CN201410076185.4 as publication number adopts stalk and ight soil to be that raw material makes soil-repairing agent; Application number is that three sections of patent documentations of CN201410075364.6, CN201310732102.8 and CN201410077436.0 then adopt the materials synthesis soil-solidified-agents such as mud, flyash, chitosan; Application number is that red mud and several renovation agent material are made into multi-Functional Fertilizers heavy metal contaminated soil and repair by two sections of patents of CN201110008347.7 and CN201410078419.9 respectively.Technology disclosed in these patents is all improve the effective way of heavy metal pollution of soil above, but in actual application, there is the shortcomings such as cost is high, applicable surface is narrow, can not get the accreditation of peasant, popularization is difficult.
In addition, irrigating region farmland, Baoding, Hebei province municipal government river belongs to the plumbous slight combined pollution calcareous soil of cadmium.Be directed to a kind of so special edatope, crop yield makes peasant satisfied also not have one to ensure at present, to reduce again in agricultural-food heavy metal content to reach agronomic technique or the related fertilizer product of state food safety standards.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of special BB fertilizer of corn being suitable for the plumbous combined pollution calcareous soil of slight cadmium, it is applicable to the calcareous soil of the plumbous combined pollution of slight cadmium, can under the prerequisite not increasing peasant planting cost, reduce heavy metal in soil cadmium, plumbous biological effectiveness, improve the output of corn, reduce cadmium and plumbous concentration in corn kernel, ensure grain security.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of special BB fertilizer of corn being suitable for the plumbous combined pollution calcareous soil of slight cadmium, it is a kind of organic and inorganic bulk blended fertilizer, the weight percent of its effective constituent is: nitrogen 15%, Vanadium Pentoxide in FLAKES 6%, potassium oxide 6%, sulfate radical 33%, humic acids 4%; The special BB of this corn fertile by particulate state ammonium sulfate, diammonium phosphate, humic acid complex fertilizer by a certain percentage mixture form.
As preferably, above-mentioned ammonium sulfate nitrogenous 20.5%; Above-mentioned diammonium phosphate nitrogenous 18%, containing Vanadium Pentoxide in FLAKES 46%; Above-mentioned humic acid complex fertilizer nitrogenous 16%, containing Vanadium Pentoxide in FLAKES 8%, containing potassium oxide 16%, containing humic acids 8%, containing organic 20%.
As preferably, in the special BB fertilizer of this corn, the content of ammonium sulfate is 46.7%, and the content of diammonium phosphate is 6.6%, and the content of humic acid complex fertilizer is 46.7%.
The beneficial effect adopting technique scheme to produce is: three kinds of fertilizer such as the humic acid complex fertilizer selected by the present invention, diammonium phosphate, ammonium sulfate are the calcareous soils for slight cadmium, plumbous combined pollution, and screened by the field test that heavy-metal contaminated soil is repaired, both tool was scientific, again targetedly.Humic acids in the present invention, sulfate ion and phosphate anion have synergy, can reduce the biological effectiveness of cadmium in agricultural land soil, plumbous heavy metal.Starting material selected by the present invention are common fertilizer kind, and unharmful substance adds, and can not bring secondary pollution to soil.The special BB of corn of the present invention is fertile, balanced in nutrition, complete processing is simple, and it applies with seed sower is disposable with base fertilizer form, uses conveniently, reduces the rehabilitation cost of heavy-metal contaminated soil.Test shows, the special BB fertilizer of corn of the present invention effectively can improve corn yield, reduces soil available Cd, plumbous content, and reduces cadmium and plumbous concentration in corn kernel, makes the corn of plantation output meet relevant state food safety standards.
Embodiment
With embodiment form, the present invention is further detailed explanation below.
Embodiment 1:
Little Wang Ting village of Wang Ting township of Baoding Qingyuan County, from the sixties in last century, adopt river, mansion sewage to carry out field irrigation always, Fu He pollutes the most serious river in the branch of Daqinghe River south, main receiving trade effluent and sanitary sewage, this area fills with due to long-term dirt and has caused agricultural land soil cadmium, plumbous, the enrichment of the metals such as arsenic, belong to slight cadmium Single Pollution district or slight Ge Qian combined pollution district, and Soil structure is deteriorated, in corn and wheat grain there is the phenomenon that exceeds standard in heavy metal, be badly in need of adopting suitable technology or product to carry out the soil of repairing heavy metal pollution, increase crop yield, agricultural-food are made to reach state food safety standards.
Present case is implemented soil and is belonged to meadow cinnamon, quality is heavy loam, pH value is 8.0, organic content is 25.5 g/kg, available phosphorus contents is 28.2 mg/kg, quick-acting potassium content is 0.35 g/kg, full dose cadmium 1.20 mg/kg, full dose plumbous 56.0 mg/kg, available Cd 0.28 mg/kg, Available Lead 9.67 mg/kg, irrigating region Cadmium in Soil content is 2 times of cadmium limit standard in food agricultural produce Environmental quality evaluation of production area standard (HJ 332-2006), and beyond soil quality environment national standard (GB15618 1), for this reason, use following fertilizer.
A kind of special BB fertilizer of corn being suitable for the plumbous combined pollution calcareous soil of slight cadmium, it is a kind of organic and inorganic bulk blended fertilizer, and it is formed in following ratio mixture by particulate state ammonium sulfate, diammonium phosphate, humic acid complex fertilizer: ammonium sulfate 46.7%, diammonium phosphate 6.6%, fertile humic acid complex fertilizer 46.7%; Wherein, ammonium sulfate nitrogenous 20.5%, diammonium phosphate is nitrogenous 18%, containing Vanadium Pentoxide in FLAKES 46%, and humic acid complex fertilizer is nitrogenous 16%, containing Vanadium Pentoxide in FLAKES 8%, containing potassium oxide 16%, containing humic acids 8%, containing organic 20%; Finally, the effective constituent of the special BB fertilizer of this corn is by weight percentage: nitrogen 15%, Vanadium Pentoxide in FLAKES 6%, potassium oxide 6%, sulfate radical 33%, humic acids 4%.
Planting system is local common Wheat Maize Rotation, and apply the special BB of corn of the present invention fertile, amount of application is 82.5kg/ mu, and maize planting kind is Zheng Dan 958, disposablely applies with seed sower with base fertilizer form.
Compared with the effect of the conventional corn composite fertilizer special used with tradition, after using the special BB fertilizer of corn of the present invention, grain yield is 10712 kg/hm
2, volume increase 15.0%; In maize straw, cadmium, lead content are respectively 0.35 mg/kg, 12.50 mg/kg, reduce 17.0%, 13.0% respectively, and in corn kernel, cadmium, lead content are respectively 0.0046 mg/kg, 0.13 mg/kg, reduce 12.0%, 7.00% respectively; Cadmium in Soil, lead content are respectively 0.73 mg/kg, 54.1 mg/kg, reduce 34.0% and 4.00% respectively; Soil available Cd, lead content are respectively 0.25 mg/kg, 8.55 mg/kg, reduce 11.0% and 12.0% respectively.
Can be found out by above embodiment, this corn special BB fertilizer can effectively suppress corn to the absorption of cadmium, plumbous heavy metal and transhipment, and reduces the biological effectiveness of Cadmium in Soil, plumbous heavy metal, promotes corn growth, ensures corn quality; In addition, the special BB fertilizer of this corn is granular fertilizers, and use conveniently, economically feasible, is very suitable for popularizing.
Claims (3)
1. the special BB of corn being suitable for the plumbous combined pollution calcareous soil of slight cadmium is fertile, it is characterized in that: be a kind of organic and inorganic bulk blended fertilizer; The weight percent of its effective constituent is: nitrogen 15%, Vanadium Pentoxide in FLAKES 6%, potassium oxide 6%, sulfate radical 33%, humic acids 4%; The special BB of this corn fertile by particulate state ammonium sulfate, diammonium phosphate, humic acid complex fertilizer by a certain percentage mixture form.
2. a kind of special BB fertilizer of corn being suitable for the plumbous combined pollution calcareous soil of slight cadmium according to claim 1, is characterized in that: described ammonium sulfate nitrogenous 20.5%; Described diammonium phosphate nitrogenous 18%, containing Vanadium Pentoxide in FLAKES 46%; Described humic acid complex fertilizer nitrogenous 16%, containing Vanadium Pentoxide in FLAKES 8%, containing potassium oxide 16%, containing humic acids 8%, containing organic 20%.
3. a kind of special BB fertilizer of corn being suitable for the plumbous combined pollution calcareous soil of slight cadmium according to claim 1, it is characterized in that: in the special BB fertilizer of this corn, the content of ammonium sulfate is 46.7%, the content of diammonium phosphate is 6.6%, and the content of humic acid complex fertilizer is 46.7%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410569185.8A CN104355685B (en) | 2014-10-23 | 2014-10-23 | A kind of corn special BB fertilizer being suitable to slight cadmium lead combined pollution calacareous soil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410569185.8A CN104355685B (en) | 2014-10-23 | 2014-10-23 | A kind of corn special BB fertilizer being suitable to slight cadmium lead combined pollution calacareous soil |
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| Publication Number | Publication Date |
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| CN104355685A true CN104355685A (en) | 2015-02-18 |
| CN104355685B CN104355685B (en) | 2016-08-24 |
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| CN201410569185.8A Active CN104355685B (en) | 2014-10-23 | 2014-10-23 | A kind of corn special BB fertilizer being suitable to slight cadmium lead combined pollution calacareous soil |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102826925A (en) * | 2012-08-30 | 2012-12-19 | 中国农业大学 | Rhizosphere regulating agent for promoting cadmium-contaminated soil phytoremediation and application method thereof |
| CN102992909A (en) * | 2012-12-31 | 2013-03-27 | 莫胜元 | Preparation of plant ecological nutrition conditioner with selenium-enriched and cadmium-degradable |
| CN103265381A (en) * | 2013-06-19 | 2013-08-28 | 天津芦阳化肥股份有限公司 | Green environment-friendly compound fertilizer prepared from three kinds of organic-inorganic nitrogen and preparation method thereof |
| CN103570474A (en) * | 2013-11-11 | 2014-02-12 | 双赢集团有限公司 | Fertilizer |
-
2014
- 2014-10-23 CN CN201410569185.8A patent/CN104355685B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102826925A (en) * | 2012-08-30 | 2012-12-19 | 中国农业大学 | Rhizosphere regulating agent for promoting cadmium-contaminated soil phytoremediation and application method thereof |
| CN102992909A (en) * | 2012-12-31 | 2013-03-27 | 莫胜元 | Preparation of plant ecological nutrition conditioner with selenium-enriched and cadmium-degradable |
| CN103265381A (en) * | 2013-06-19 | 2013-08-28 | 天津芦阳化肥股份有限公司 | Green environment-friendly compound fertilizer prepared from three kinds of organic-inorganic nitrogen and preparation method thereof |
| CN103570474A (en) * | 2013-11-11 | 2014-02-12 | 双赢集团有限公司 | Fertilizer |
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| CN104355685B (en) | 2016-08-24 |
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