CN104355685B - A kind of corn special BB fertilizer being suitable to slight cadmium lead combined pollution calacareous soil - Google Patents
A kind of corn special BB fertilizer being suitable to slight cadmium lead combined pollution calacareous soil Download PDFInfo
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- CN104355685B CN104355685B CN201410569185.8A CN201410569185A CN104355685B CN 104355685 B CN104355685 B CN 104355685B CN 201410569185 A CN201410569185 A CN 201410569185A CN 104355685 B CN104355685 B CN 104355685B
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- fertilizer
- corn
- soil
- humic acid
- 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 kind of corn special BB fertilizer being suitable to slight cadmium lead combined pollution calacareous soil, belong to technical field of fertilizer, it is a kind of inorganic and organic mixed fertilizer material, the percentage by weight of its active ingredient is: nitrogen 15%, phosphorus pentoxide 6%, potassium oxide 6%, sulfate radical 33%, humic acid 4%, this BB is fertile by graininess ammonium sulfate, Diammonium phosphate (DAP), humic acid complex fertilizer mixture by a certain percentage forms, it is applicable to the calacareous soil of slight cadmium lead combined pollution, can effectively suppress corn to cadmium, the absorption of lead heavy metal and transhipment, and reduce Cadmium in Soil, the biological effectiveness of lead heavy metal, promote corn growth, ensure corn quality.
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 increasingly sharpened, and some areas heavy metal pollution of soil hazardous events takes place frequently, and agricultural product security and health are caused serious threat, causes the great attention of country and relevant departments.
The restorative procedure of heavy metal pollution of soil includes traditional physics and chemical method, such 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 ion concentration or change heavy metal existing forms in soil, thus reducing its animal migration in soil and bioavailability.The shortcoming of these methods is that repair coverage is less, and relatively costly, quantities is big, it is difficult to realizes, but also easily causes secondary pollution.Such as leaching method, it strengthens the dissolubility of heavy metal, finally reclaims heavy metal from extract by adding some active solvents such as EDTA in soil.For this method, on the one hand surfactant is expensive, on the other hand, needs the surfactant toxicity ensureing to add low, degradable, simultaneously need to note the recovery of eluent, to avoid introducing secondary pollution.Emerging biological restoration is the soil utilizing the effect repairing heavy metal pollutions such as plant (predominantly heavy metal super-enriched plant) and the absorption of microorganism heavy metal, transhipment and internal metabolism.The method has economy, environmental protection and efficient advantage relative to tradition 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, in for, light and heavy metals pollute and still can plant the farmland of cereal crops, it is more suitable for, on the basis of not changing local farmers planting habit, repairing contaminated by heavy metals farmland by agronomic measures such as fertilisings, makes agricultural product meet state food safety standard.
Bulk blended fertilizer in bulk, English is Bulk Blending Fertilizer, is called for short BB fertile, and it is a kind of complex fertilizer several granular single fertilizers or compound fertilizer blended according to a certain percentage.Nutrient formula fertile for BB is on the basis of considering crop nutrient uptake feature, proposes, existing science with reference to local soil nutrient state of supply, the most targetedly, is highly suitable for the farmland of above-mentioned heavy metal slight pollution.
Patented technology in terms of heavy metal pollution of soil agronomy reclamation activities relates to preparation and the application of Prof. Du Yucang renovation agent mostly at present, and the patent document " using fowl and animal excrement is the soil-repairing agent of raw material, preparation method and purposes " such as Publication No. CN201410076185.4 uses stalk and ight soil to be that raw material makes soil-repairing agent；Application No. CN201410075364.6, three patent documents of CN201310732102.8 and CN201410077436.0 then use the materials synthesis soil-solidified-agents such as mud, flyash, shitosan；Red mud and several renovation agent material are fabricated to multi-Functional Fertilizers heavy metal contaminated soil and repair by two patents of Application No. CN201110008347.7 and CN201410078419.9 respectively.Technology disclosed in the above patent is all to improve the effective way of heavy metal pollution of soil, 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.
Additionally, irrigating region farmland, Baoding, Hebei province municipal government river belongs to cadmium lead slight combined pollution calacareous soil.It is directed to the soil environment that such a is special, there is presently no one and both can guarantee that crop yield made peasant satisfied, content of beary metal can be reduced again in agricultural product to reach agronomic technique or the related fertilizer product of state food safety standard.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of corn special BB fertilizer being suitable to slight cadmium lead combined pollution calacareous soil, it is applicable to the calacareous soil of slight cadmium lead combined pollution, can be on the premise of not increasing peasant planting cost, reduce heavy metal in soil cadmium, the biological effectiveness of lead, improve the yield of corn, reduce cadmium and the concentration of lead in corn kernel, it is ensured that grain security.
For solving above-mentioned technical problem, the technical solution used in the present invention is: a kind of corn special BB fertilizer being suitable to slight cadmium lead combined pollution calacareous soil, it is a kind of organic and inorganic bulk blended fertilizer, the percentage by weight of its active ingredient is: nitrogen 15%, phosphorus pentoxide 6%, potassium oxide 6%, sulfate radical 33%, humic acid 4%；This corn special BB fertilizer is formed by graininess ammonium sulfate, Diammonium phosphate (DAP), humic acid complex fertilizer mixture by a certain percentage.
As preferably, above-mentioned ammonium sulfate nitrogenous 20.5%；Above-mentioned Diammonium phosphate (DAP) nitrogenous 18%, containing phosphorus pentoxide 46%；Above-mentioned humic acid complex fertilizer nitrogenous 16%, containing phosphorus pentoxide 8%, containing potassium oxide 16%, containing humic acid 8%, containing organic 20%.
As preferably, in this corn special BB fertilizer, the content of ammonium sulfate is 46.7%, and the content of Diammonium phosphate (DAP) is 6.6%, and the content of humic acid complex fertilizer is 46.7%.
Use produced by technique scheme and have the beneficial effects that: three kinds of fertilizer such as humic acid complex fertilizer selected by the present invention, Diammonium phosphate (DAP), ammonium sulfate are for slight cadmium, the calacareous soil of lead combined pollution, and the field test repaired by heavy-metal contaminated soil is screened, both had science, the most targetedly.Humic acid, sulfate ion and phosphate anion in the present invention have synergy, can reduce cadmium in agricultural land soil, the biological effectiveness of lead heavy metal.Raw material selected by the present invention are common fertilizer kind, and unharmful substance adds, and soil will not be brought secondary pollution.The special BB of corn of the present invention is fertile, balanced in nutrition, processing technology simple, and it disposably applies with seeder with base fertilizer form, uses conveniently, reduces the rehabilitation cost of heavy-metal contaminated soil.Test shows, the corn special BB fertilizer of the present invention can be effectively improved corn yield, reduces soil available Cd, the content of lead, and reduces cadmium and the concentration of lead in corn kernel, makes the corn of plantation output meet relevant state food safety standard.
Detailed description of the invention
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, start to have been used up river, mansion sewage from the sixties in last century and carry out field irrigation, Fu He is to pollute the most serious river in the branch of Daqinghe River south, main receiving industrial wastewater and sanitary sewage, this area has resulted in agricultural land soil cadmium due to long-term dirty filling, lead, the enrichment of the metals such as arsenic, belong to slight cadmium Single Pollution district or slight Ge Qian combined pollution district, and soil texture is deteriorated, in corn and wheat seed, there is the phenomenon that exceeds standard in heavy metal, it is badly in need of the soil using suitable technology or product to carry out repairing heavy metal pollution, increase crop yield, agricultural product are made to reach state food safety standard.
Present case is implemented soil and is belonged to meadow cinnamon, quality is heavy loam, pH value is 8.0, the content of organic matter 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 lead 56.0 mg/kg, available Cd 0.28 mg/kg, Available Lead 9.67 mg/kg, irrigating region Cadmium in Soil content is in edible rapid test paper environmental quality assessment standard (HJ 332-2006) 2 times of cadmium limit standard, and beyond soil quality environment national standard (GB15618 1), to this end, use following fertilizer.
A kind of corn special BB fertilizer being suitable to slight cadmium lead combined pollution calacareous soil, it is a kind of organic and inorganic bulk blended fertilizer, and it is formed in following ratio mixture by graininess ammonium sulfate, Diammonium phosphate (DAP), humic acid complex fertilizer: ammonium sulfate 46.7%, Diammonium phosphate (DAP) 6.6%, fertile humic acid complex fertilizer 46.7%；Wherein, ammonium sulfate nitrogenous 20.5%, Diammonium phosphate (DAP) is nitrogenous 18%, containing phosphorus pentoxide 46%, and humic acid complex fertilizer is nitrogenous 16%, containing phosphorus pentoxide 8%, containing potassium oxide 16%, containing humic acid 8%, containing organic 20%；Finally, fertile for the special BB of this corn active ingredient is by weight percentage: nitrogen 15%, phosphorus pentoxide 6%, potassium oxide 6%, sulfate radical 33%, humic acid 4%.
Planting system is local common Wheat Maize Rotation, and the special BB of corn of the application present invention is fertile, and amount of application is 82.5kg/ mu, and maize planting kind is Zheng Dan 958, disposably applies with seeder with base fertilizer form.
Compared with the effect of the conventional corn composite fertilizer special that tradition is used, after using the corn special BB fertilizer of the present invention, grain yield is 10712 kg/hm2, increase production 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.
By above example it can be seen that this corn special BB fertilizer can effectively suppress corn to cadmium, the absorption of lead heavy metal and transhipment, and reduce Cadmium in Soil, the biological effectiveness of lead heavy metal, promote corn growth, it is ensured that corn quality；Additionally, this corn special BB fertilizer is granular fertilizers, use conveniently, economically feasible, it is very suitable for popularizing.
Claims (3)
1. the special BB of corn being suitable to slight cadmium lead combined pollution calacareous soil is fertile, it is characterised in that: it is a kind of organic and inorganic bulk blended fertilizer；The percentage by weight of its active ingredient is: nitrogen 15%, phosphorus pentoxide 6%, potassium oxide 6%, sulfate radical 33%, humic acid 4%；This corn special BB fertilizer is formed by graininess ammonium sulfate, Diammonium phosphate (DAP), humic acid complex fertilizer mixture by a certain percentage.
A kind of corn special BB fertilizer being suitable to slight cadmium lead combined pollution calacareous soil the most according to claim 1, it is characterised in that: described ammonium sulfate nitrogenous 20.5%；Described Diammonium phosphate (DAP) nitrogenous 18%, containing phosphorus pentoxide 46%；Described humic acid complex fertilizer nitrogenous 16%, containing phosphorus pentoxide 8%, containing potassium oxide 16%, containing humic acid 8%, containing organic 20%.
A kind of corn special BB fertilizer being suitable to slight cadmium lead combined pollution calacareous soil the most according to claim 1, it is characterized in that: in this corn special BB fertilizer, the content of ammonium sulfate is 46.7%, the content of Diammonium phosphate (DAP) is 6.6%, and the content of humic acid complex fertilizer is 46.7%.
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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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| Application Number | Priority Date | Filing Date | Title |
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| 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 CN104355685A (en) | 2015-02-18 |
| CN104355685B true CN104355685B (en) | 2016-08-24 |
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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 |
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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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| CN104355685A (en) | 2015-02-18 |
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