CN104892315A - Special ecological fertilizer for saline-alkali soil and preparation method thereof - Google Patents
Special ecological fertilizer for saline-alkali soil and preparation method thereof Download PDFInfo
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Abstract
The invention belongs to the field of fertilizer for crops and particularly relates to a special ecological fertilizer for saline-alkali soil and a preparation method thereof. The special ecological fertilizer is characterized by being composed of reed, common cordgrass, sweet potato powder residue, citric acid industrial residue, dry chicken manure, ammonium sulfate, monocalcium phosphate, potassium humate, trace elements, guar gum, esterified starch and a soil conditioner. The special ecological fertilizer is mainly composed of organic fertilizer, is rich in organic matters and humic acid and is added with a small amount of acidic inorganic fertilizer in a compounded way; therefore, the special ecological fertilizer is comprehensive in nutrition and is capable of well meeting the nutrition demands for growth of crops; the soil conditioner in the special ecological fertilizer is capable of improving the soil environment, reducing the pH value of alkali soil, lowering the content of soluble salt and increasing the content of N, P and K in soil and thus the utilization rate of the fertilizer can be improved.
Description
Technical field
The invention belongs to slow release fertilizer field, particularly special Eco-fertilizer of a kind of salt affected soil and preparation method thereof.
Background technology
Saline-alkali soil is after in soil, solubility salt or exchangeable sodium ionic concn acquire a certain degree, and makes the PH value of soil higher, and crop is difficult to the class soil grown.Salting of soil problem worldwide extensively exists, northern China arid, semiarid zone and coastal region, because precipitation is rare, Evaporation is strong, the underground water being rich in salinity rises and accumulates in top layer, make the salt accumulation in soil plough horizon, add and irrationally for a long time use inorganic fertilizer, finally make soil pH raise, salting of soil.Research shows, salt affected soil salinity is many, alkalescence is large, make the soil organism, trace element suffers leaching loss, Soil structure is worsened, harden serious, cause plant root system development bad, serious also can cause dunsiekte, rotten, the phenomena of mortality, the fertilizer applied effectively can not be absorbed by crop root, reduce the utilization ratio of fertilizer.Thus, how effectively to reduce the PH value of salt affected soil, reduce salting of soil, become solve Food Security and preserve the ecological environment, one of the important means promoting agricultural sustainable development.
China Patent Publication No. CN104447100A discloses a kind of green fertilizer improveing saltings, comprise potato, GOUYAHUA wood chip, Lantana camara wood chip, ground phosphate rock, primary ammonium phosphate, sodium acid pyrophosphate, vinelandii powder, phosphorus bacteria powder, beans stalk, potato class stalk and shell shell powder, thoroughly the generation source of improvement soil organic microbial and the acid-basicity of soil are effectively provided, active substance can also be produced, irritate plant growth, nitrogen in fixed air.
China Patent Publication No. CN1631857A discloses a kind of saline-alkali land improving and fertilizing agent and preparation method thereof, comprise microbe composite bacterial liquid and siccative, described microbe composite bacterial liquid is made up of Trichodermareesei, plant lactobacillus, yeast saccharomyces cerevisiae and Missouri Actinoplanes bacillus, but its raw material sources are less, preparation method is complicated, is not suitable for large-scale industrial production.
China Patent Publication No. CN104262046A discloses a kind of fertilizer for saline-alkaline field and preparation method thereof, its raw material comprises humic acid, microorganism, farm manure, stalk, calcium superphosphate, ferrous sulfate, flyash, furfural dregs, desulfurated plaster, nitrogenous fertilizer, phosphate fertilizer and potash fertilizer, effectively can improve the situation of alkaline land soil, reduce soil salt content and pH value, increase soil organic matter content, be particularly suitable for saltings and use.
Special fertilizer at present for salt affected soil uses composite microbe fertilizer mostly, but due to the salt content in salt affected soil high, inhibit the activity of soil microorganisms, the utilization rate of fertilizer of bio-fertilizer is low.Also have soil improvement agent in prior art, but it changes the physicochemical character of soil, effect is improved for the increase of soil fertility, soil root and soil microorganisms living environment system volume undesirable.Therefore, in order to improve and utilize alkaline soil, make it the edaphic condition reaching plant growth, the special Eco-fertilizer developing a kind of salt affected soil becomes particularly important.
Summary of the invention
In order to solve the above problems, the present invention proposes the special Eco-fertilizer of a kind of salt affected soil, this Eco-fertilizer utilizes agriculture and forestry organic waste material reed, Value of Spartina Anglica, Ipomoea batatas granulated slag and citric acid industrial waste residue and dried poultrymanure as organic matter, effective improvement activated alkaline soil, strengthen soil supplying nutrient capability, free cations a large amount of in absorption salt affected soil, reduces the content of soluble salt in soil; Compound adds acid mineral NPK fertilizers and trace element, reduces the alkalescence of salt affected soil, makes root system of plant overall absorption n p k nutrition element; Add guar gum, esterification starch simultaneously, increase the permeability of soil, improve soil water-reataining fertilizer-keeping ability; The soil improvement agent added in fertilizer has higher ionic adsorption performance, the ion of free state in fixing alkaline land soil can be adsorbed, calcium ion simultaneously in soil improvement agent and the sodium ion in soil exchange, reduce the content of exchangeable sodium ion in soil, increase the water-permeable of soil, promote desalinization of soil by flooding or leaching speed, reach the effect of modification salt affected soil.
Further, the invention provides the preparation method of the special Eco-fertilizer of a kind of salt affected soil.The method is reed, Value of Spartina Anglica, Ipomoea batatas granulated slag, citric acid industrial waste residue and dried poultrymanure carry out shearing treatment, then low temperature fermentation is carried out, organic materials is made to be converted into the organic molecule that directly can be absorbed by plant, be uniformly mixed with acid mineral fertilizer, trace element, guar gum, esterification starch and soil improvement agent again, namely obtain the special Eco-fertilizer of a kind of salt affected soil of the present invention.
The special Eco-fertilizer of a kind of salt affected soil of the present invention adopts following technical scheme to realize:
The special Eco-fertilizer of a kind of salt affected soil, is characterized in that comprising following parts by weight of raw materials: 30 ~ 40 parts, reed, Value of Spartina Anglica 20 ~ 30 parts, Ipomoea batatas granulated slag 15 ~ 20 parts, citric acid industrial waste residue 20 ~ 30 parts, dried poultrymanure 25 ~ 35 parts, starter 1 ~ 3 part, 10 ~ 20 parts, ammonium sulfate, monocalcium phosphate 10 ~ 15 parts, potassium humate 10 ~ 15 parts, trace element 5 ~ 10 parts, guar gum 3 ~ 5 parts, esterification starch 5 ~ 10 parts, soil improvement agent 10 ~ 15 parts.
Trace element described above is at least one in amino acid chelated magnesium, zinc-amino acid chelate, iron-amino acid chelate, iron-amino acid chelate, copper amino acid chelate, chelating amino acids boron, chelating amino acids molybdenum;
Soil improvement agent described above is that 3 ~ 5:2 ~ 3:1 ~ 2:0.1 ~ 0.5 forms by wilkinite, charcoal, calcium chloride and cetyl trimethylammonium bromide in mass ratio, and its preparation method comprises:
(1) by wilkinite and Refinement of Activated Carbon to 20 ~ 30 order, the dilute sulphuric acid then adding 15% ~ 20% carries out acidification, and the add-on of sulfuric acid is 3 ~ 5 times of solid reactant, and temperature of reaction is 40-60 DEG C, under whipped state, react 2 ~ 3h;
(2) the solution NaOH solution after acidifying is adjusted to neutrality, then carries out solid-liquid separation with whizzer, the solid after separation is put into dryer and carries out drying;
(3) dried solid in step (2) is added in stirred autoclave, adds the cetyl trimethylammonium bromide aqueous solution that massfraction is 10 ~ 15%, at 40 ~ 50 DEG C of stirring reaction 30 ~ 50min, setting stirring velocity 100r/min ~ 150r/min;
(4) joined by calcium chloride in step (3), continue stirring 20 ~ 30min, namely filtration drying obtains described soil improvement agent.
The special Eco-fertilizer of a kind of salt affected soil of the present invention, is characterized in that concrete preparation method comprises the following steps:
(1) reed, Value of Spartina Anglica, Ipomoea batatas granulated slag, citric acid industrial waste residue, dried poultrymanure are dropped into shearing activation equipment together after shining dry grinding and shear, arranging rotating speed is 2000 ~ 4000rpm, has sheared rear cooling;
(2) organic materials after shearing in step (1) is put in closed reactor, add starter to ferment, fermentation reaction temperature 30 ~ 50 DEG C is set, 1 ~ 2 day fermentation reaction time, after having fermented, tunning is sent into shearing shredder to grind, make product nano;
(3) product of nanometer in step (2) is gone in stirred autoclave, add ammonium sulfate, monocalcium phosphate, potassium humate, trace element stir, under the rotating speed of 150r/min ~ 300r/min, keep reaction 30 ~ 50min; Then add guar gum, esterification starch and soil improvement agent and continue stirring 20 ~ 30min, after drying, namely obtain the special Eco-fertilizer of a kind of salt affected soil.
Shearing activation equipment described in above-mentioned steps (1) is for principal feature with shockwave stress and shearing force, large by the organic materials surface-area activated, surfactivity is high, make the macromolecular substance such as the Mierocrystalline cellulose in organic materials, protein cut into small molecules, soluble components sugar, amino bases, VITAMIN equal size are increased.
Special Eco-fertilizer of a kind of salt affected soil of the present invention and preparation method thereof, utilize the active organic matter in biological fermentation process extraction reed, Value of Spartina Anglica, Ipomoea batatas granulated slag, citric acid industrial waste residue, dried poultrymanure, compound adds acidity mineral manure, trace element, guar gum, esterification starch and soil improvement agent, effective improvement activated alkaline soil, strengthen soil supplying nutrient capability, reduce the salt content of salt affected soil, improve edatope, improve the utilization ratio of fertilizer.Containing the salt of higher concentration and exchangeable sodium ion in salt affected soil, make the soil organism, trace element suffers leaching loss, Soil structure is worsened, hardens seriously, the fertilizer applied effectively can not be absorbed by crop root, reduce the utilization ratio of fertilizer.The special Eco-fertilizer of the present invention, based on acidic fertilizier, improves the alkaline environment of soil, and the pectin added in fertilizer, sucrose energy inducing plant produce phenols secondary metabolite, can form stable compound with aluminum ion; Soil improvement agent is to set mushroom slag, cyclodextrin modified montmorillonite and flyash, add degradable glucoheptose alkali sodium metal chelator, improve soil permeability, improve the cation replacement ability of soil, active iron ion free in complexing alkaline soil and aluminum ion, reduce the fixing of phosphate fertilizer and the leaching of potassium, calcium, magnesium nutrition fertilizer, improve the utilization ratio of fertilizer.
Special Eco-fertilizer of a kind of salt affected soil of the present invention and preparation method thereof, compared with prior art its outstanding feature and beneficial effect are:
1, the special Eco-fertilizer of a kind of salt affected soil of the present invention, natural organic matter is utilized to mix with acid mineral fertilizer, guar gum, esterification starch and soil improvement agent, effective improvement activated alkaline soil, strengthen the organic matter of soil, reduce the content of soluble salt in soil, in and the pH of salt affected soil, increase the water-permeable of soil, promote desalinization of soil by flooding or leaching speed, improvement salt affected soil, improves the utilization ratio of fertilizer.
2, wilkinite and gac are carried out acidification by soil improvement agent of the present invention, improve ion adsorption capacity and water-intake rate, modify with cetyl trimethylammonium bromide tensio-active agent, improve surfactivity, increase the surface-area of material; Sodium ion in the calcium ion added in soil improvement agent and soil exchanges, and reduces the content of exchangeable sodium ion in soil, increases the water-permeable of soil, promotes desalinization of soil by flooding or leaching speed, reaches the effect of modification salt affected soil.
3, raw material sources of the present invention are extensive, and production technique is easily controlled, can not to environment, and life-time service can increase soil organic matter content, reduce the salt content of salt affected soil, improve surface soil alkalinity environment.
Embodiment
Below in conjunction with embodiment, the present invention is explained in detail, is not restricted to the present invention.When not departing from aforesaid method thought of the present invention, the various replacement made according to ordinary skill knowledge and customary means or improvement, all should be included within protection scope of the present invention.
embodiment 1
The special Eco-fertilizer of a kind of salt affected soil, its parts by weight of raw materials is composed as follows: 30 parts, reed, Value of Spartina Anglica 30 parts, Ipomoea batatas granulated slag 15 parts, citric acid industrial waste residue 20 parts, dried poultrymanure 25 parts, starter 1 part, 20 parts, ammonium sulfate, monocalcium phosphate 10 parts, potassium humate 10 parts, trace element 5 parts, guar gum 3 parts, esterification starch 5 parts, soil improvement agent 10 parts; Wherein soil improvement agent is by wilkinite, charcoal, calcium chloride and cetyl trimethylammonium bromide in mass ratio for 3:2:1:0.1 forms, and its preparation method comprises:
(1) by wilkinite and Refinement of Activated Carbon to 20 ~ 30 order, the dilute sulphuric acid then adding 15% carries out acidification, and the add-on of sulfuric acid is 5 times of solid reactant, and temperature of reaction is 40 DEG C, under whipped state, react 2h;
(2) the solution NaOH solution after acidifying is adjusted to neutrality, then carries out solid-liquid separation with whizzer, the solid after separation is put into dryer and carries out drying;
(3) dried solid in step (2) is added in stirred autoclave, adds the cetyl trimethylammonium bromide aqueous solution that massfraction is 10%, at 40 DEG C of stirring reaction 50min, setting stirring velocity 100r/min;
(4) joined by calcium chloride in step (3), continue to stir 20min, namely filtration drying obtains described soil improvement agent.
The special Eco-fertilizer of a kind of salt affected soil, its concrete preparation method comprises the following steps:
(1) reed, Value of Spartina Anglica, Ipomoea batatas granulated slag, citric acid industrial waste residue, dried poultrymanure are dropped into shearing activation equipment together after shining dry grinding and shear, arranging rotating speed is 2000rpm, has sheared rear cooling;
(2) organic materials after shearing in step (1) is put in closed reactor, add starter to ferment, fermentation reaction temperature 50 C is set, 1 day fermentation reaction time, after having fermented, tunning is sent into shearing shredder to grind, make product nano;
(3) product of nanometer in step (2) is gone in stirred autoclave, add ammonium sulfate, monocalcium phosphate, potassium humate, trace element stir, under the rotating speed of 150r/min, keep reaction 50min; Then add guar gum, esterification starch and soil improvement agent to continue to stir 20min, after drying, namely obtain the special Eco-fertilizer of a kind of salt affected soil.
embodiment 2
The special Eco-fertilizer of a kind of salt affected soil, its parts by weight of raw materials is composed as follows: 30 parts, reed, Value of Spartina Anglica 30 parts, Ipomoea batatas granulated slag 15 parts, citric acid industrial waste residue 30 parts, dried poultrymanure 35 parts, starter 2 parts, 5 parts, ammonium sulfate, monocalcium phosphate 10 parts, potassium humate 15 parts, trace element 6 parts, guar gum 5 parts, esterification starch 6 parts, soil improvement agent 12 parts; Wherein soil improvement agent is by wilkinite, charcoal, calcium chloride and cetyl trimethylammonium bromide in mass ratio for 5:2:1:0.1 forms, and its preparation method comprises:
(1) by wilkinite and Refinement of Activated Carbon to 20 ~ 30 order, the dilute sulphuric acid then adding 15% carries out acidification, and the add-on of sulfuric acid is 5 times of solid reactant, and temperature of reaction is 60 DEG C, under whipped state, react 2h;
(2) the solution NaOH solution after acidifying is adjusted to neutrality, then carries out solid-liquid separation with whizzer, the solid after separation is put into dryer and carries out drying;
(3) dried solid in step (2) is added in stirred autoclave, adds the cetyl trimethylammonium bromide aqueous solution that massfraction is 10%, at 50 DEG C of stirring reaction 30min, setting stirring velocity 150r/min;
(4) joined by calcium chloride in step (3), continue to stir 30min, namely filtration drying obtains described soil improvement agent.
The special Eco-fertilizer of a kind of salt affected soil, its concrete preparation method comprises the following steps:
(1) reed, Value of Spartina Anglica, Ipomoea batatas granulated slag, citric acid industrial waste residue, dried poultrymanure are dropped into shearing activation equipment together after shining dry grinding and shear, arranging rotating speed is 4000rpm, has sheared rear cooling;
(2) organic materials after shearing in step (1) is put in closed reactor, add starter to ferment, fermentation reaction temperature 50 C is set, 1 day fermentation reaction time, after having fermented, tunning is sent into shearing shredder to grind, make product nano;
(3) product of nanometer in step (2) is gone in stirred autoclave, add ammonium sulfate, monocalcium phosphate, potassium humate, trace element stir, under the rotating speed of 300r/min, keep reaction 30min; Then add guar gum, esterification starch and soil improvement agent to continue to stir 30min, after drying, namely obtain the special Eco-fertilizer of a kind of salt affected soil.
embodiment 3
The special Eco-fertilizer of a kind of salt affected soil, its parts by weight of raw materials is composed as follows: 40 parts, reed, Value of Spartina Anglica 20 parts, Ipomoea batatas granulated slag 20 parts, citric acid industrial waste residue 20 parts, dried poultrymanure 25 parts, starter 3 parts, 20 parts, ammonium sulfate, monocalcium phosphate 15 parts, potassium humate 15 parts, trace element 8 parts, guar gum 5 parts, esterification starch 10 parts, soil improvement agent 15 parts; Wherein soil improvement agent is by wilkinite, charcoal, calcium chloride and cetyl trimethylammonium bromide in mass ratio for 5:3:2:0.5 forms, and its preparation method comprises:
(1) by wilkinite and Refinement of Activated Carbon to 20 ~ 30 order, the dilute sulphuric acid then adding 20% carries out acidification, and the add-on of sulfuric acid is 3 times of solid reactant, and temperature of reaction is 40 DEG C, under whipped state, react 3h;
(2) the solution NaOH solution after acidifying is adjusted to neutrality, then carries out solid-liquid separation with whizzer, the solid after separation is put into dryer and carries out drying;
(3) dried solid in step (2) is added in stirred autoclave, adds the cetyl trimethylammonium bromide aqueous solution that massfraction is 15%, at 40 DEG C of stirring reaction 50min, setting stirring velocity 150r/min;
(4) joined by calcium chloride in step (3), continue to stir 20min, namely filtration drying obtains described soil improvement agent.
The special Eco-fertilizer of a kind of salt affected soil, its concrete preparation method comprises the following steps:
(1) reed, Value of Spartina Anglica, Ipomoea batatas granulated slag, citric acid industrial waste residue, dried poultrymanure are dropped into shearing activation equipment together after shining dry grinding and shear, arranging rotating speed is 4000rpm, has sheared rear cooling;
(2) organic materials after shearing in step (1) is put in closed reactor, add starter to ferment, fermentation reaction temperature 50 C is set, 1 day fermentation reaction time, after having fermented, tunning is sent into shearing shredder to grind, make product nano;
(3) product of nanometer in step (2) is gone in stirred autoclave, add ammonium sulfate, monocalcium phosphate, potassium humate, trace element stir, under the rotating speed of 300r/min, keep reaction 50min; Then add guar gum, esterification starch and soil improvement agent to continue to stir 20min, after drying, namely obtain the special Eco-fertilizer of a kind of salt affected soil.
embodiment 4
The special Eco-fertilizer of a kind of salt affected soil, its parts by weight of raw materials is composed as follows: 30 parts, reed, Value of Spartina Anglica 20 parts, Ipomoea batatas granulated slag 15 parts, citric acid industrial waste residue 30 parts, dried poultrymanure 35 parts, starter 3 parts, 20 parts, ammonium sulfate, monocalcium phosphate 15 parts, potassium humate 10 parts, trace element 10 parts, guar gum 5 parts, esterification starch 10 parts, soil improvement agent 15 parts; Wherein soil improvement agent is by wilkinite, charcoal, calcium chloride and cetyl trimethylammonium bromide in mass ratio for 5:2:2:0.5 forms, and its preparation method comprises:
(1) by wilkinite and Refinement of Activated Carbon to 20 ~ 30 order, the dilute sulphuric acid then adding 20% carries out acidification, and the add-on of sulfuric acid is 3 times of solid reactant, and temperature of reaction is 60 DEG C, under whipped state, react 2h;
(2) the solution NaOH solution after acidifying is adjusted to neutrality, then carries out solid-liquid separation with whizzer, the solid after separation is put into dryer and carries out drying;
(3) dried solid in step (2) is added in stirred autoclave, adds the cetyl trimethylammonium bromide aqueous solution that massfraction is 10%, at 50 DEG C of stirring reaction 40min, setting stirring velocity 150r/min;
(4) joined by calcium chloride in step (3), continue to stir 30min, namely filtration drying obtains described soil improvement agent.
The special Eco-fertilizer of a kind of salt affected soil, its concrete preparation method comprises the following steps:
(1) reed, Value of Spartina Anglica, Ipomoea batatas granulated slag, citric acid industrial waste residue, dried poultrymanure are dropped into shearing activation equipment together after shining dry grinding and shear, arranging rotating speed is 4000rpm, has sheared rear cooling;
(2) organic materials after shearing in step (1) is put in closed reactor, add starter to ferment, fermentation reaction temperature 45 C is set, 2 days fermentation reaction time, after having fermented, tunning is sent into shearing shredder to grind, make product nano;
(3) product of nanometer in step (2) is gone in stirred autoclave, add ammonium sulfate, monocalcium phosphate, potassium humate, trace element stir, under the rotating speed of 300r/min, keep reaction 40min; Then add guar gum, esterification starch and soil improvement agent to continue to stir 30min, after drying, namely obtain the special Eco-fertilizer of a kind of salt affected soil.
Claims (2)
1. the special Eco-fertilizer of salt affected soil, is characterized in that comprising following parts by weight of raw materials: 30 ~ 40 parts, reed, Value of Spartina Anglica 20 ~ 30 parts, Ipomoea batatas granulated slag 15 ~ 20 parts, citric acid industrial waste residue 20 ~ 30 parts, dried poultrymanure 25 ~ 35 parts, starter 1 ~ 3 part, 10 ~ 20 parts, ammonium sulfate, monocalcium phosphate 10 ~ 15 parts, potassium humate 10 ~ 15 parts, trace element 5 ~ 10 parts, guar gum 3 ~ 5 parts, esterification starch 5 ~ 10 parts, soil improvement agent 10 ~ 15 parts; Wherein, described trace element is at least one in amino acid chelated magnesium, zinc-amino acid chelate, iron-amino acid chelate, iron-amino acid chelate, copper amino acid chelate, chelating amino acids boron, chelating amino acids molybdenum; Described soil improvement agent is that 3 ~ 5:2 ~ 3:1 ~ 2:0.1 ~ 0.5 forms by wilkinite, charcoal, calcium chloride and cetyl trimethylammonium bromide in mass ratio; Described special Eco-fertilizer is prepared by following methods:
(1) reed, Value of Spartina Anglica, Ipomoea batatas granulated slag, citric acid industrial waste residue, dried poultrymanure are dropped into shearing activation equipment together after shining dry grinding and shear, arranging rotating speed is 2000 ~ 4000rpm, has sheared rear cooling;
(2) organic materials after shearing in step (1) is put in closed reactor, add starter to ferment, fermentation reaction temperature 30 ~ 50 DEG C is set, 1 ~ 2 day fermentation reaction time, after having fermented, tunning is sent into shearing shredder to grind, make product nano;
(3) product of nanometer in step (2) is gone in stirred autoclave, add ammonium sulfate, monocalcium phosphate, potassium humate, trace element stir, under the rotating speed of 150r/min ~ 300r/min, keep reaction 30 ~ 50min; Then add guar gum, esterification starch and soil improvement agent and continue stirring 20 ~ 30min, after drying, namely obtain the special Eco-fertilizer of a kind of salt affected soil.
2. the special Eco-fertilizer of a kind of salt affected soil according to claim 1, is characterized in that described soil improvement agent is prepared by following methods:
(1) by wilkinite and Refinement of Activated Carbon to 20 ~ 30 order, the dilute sulphuric acid then adding 15% ~ 20% carries out acidification, and the add-on of sulfuric acid is 3 ~ 5 times of solid reactant, and temperature of reaction is 40-60 DEG C, under whipped state, react 2 ~ 3h;
(2) the solution NaOH solution after acidifying is adjusted to neutrality, then carries out solid-liquid separation with whizzer, the solid after separation is put into dryer and carries out drying;
(3) dried solid in step (2) is added in stirred autoclave, adds the cetyl trimethylammonium bromide aqueous solution that massfraction is 10 ~ 15%, at 40 ~ 50 DEG C of stirring reaction 30 ~ 50min, setting stirring velocity 100r/min ~ 150r/min;
(4) joined by calcium chloride in step (3), continue stirring 20 ~ 30min, namely filtration drying obtains described soil improvement agent.
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| CN105191723A (en) * | 2015-09-16 | 2015-12-30 | 安徽德昌苗木有限公司 | Camellia oleifera planting method |
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| CN105820017A (en) * | 2016-05-19 | 2016-08-03 | 四川施利旺农业科技开发有限公司 | Ecological soil conditioner for improving saline and alkaline land soil and preparation method |
| CN106171114A (en) * | 2016-07-30 | 2016-12-07 | 山东胜伟园林科技有限公司 | A kind of method using puncture-resistant hidden pipe to carry out salt discharge and the application in coastal tidal alkaline land improving thereof |
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| CN106748193A (en) * | 2016-12-28 | 2017-05-31 | 山东省农业可持续发展研究所 | A kind of composite fertilizer for alkaline land soil improvement and preparation method thereof |
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| CN107141177A (en) * | 2017-06-14 | 2017-09-08 | 合肥助航生态农业科技有限公司 | Modifying agent increase soil fertility and preparation method thereof |
| CN109721407A (en) * | 2017-10-30 | 2019-05-07 | 丹阳市景林园园艺有限公司 | A kind of cotton fertilizer |
| CN107973658A (en) * | 2017-11-09 | 2018-05-01 | 山西农业大学 | A kind of new phosphobacteria charcoal base manure material and application |
| CN108484286A (en) * | 2018-06-01 | 2018-09-04 | 新疆泰谷生物肥料有限公司 | A kind of salt-soda soil organic-inorganic compound fertilizer special and its preparation method and application |
| CN109705872A (en) * | 2018-12-07 | 2019-05-03 | 中国科学院东北地理与农业生态研究所 | A kind of soda alkali-affected soil conditioner and preparation method thereof |
| CN109777441A (en) * | 2019-03-11 | 2019-05-21 | 齐鲁工业大学 | A kind of alkaline soil improver and application |
| CN110452070A (en) * | 2019-09-09 | 2019-11-15 | 山东胜伟盐碱地科技有限公司 | A kind of alkaline land soil desalination agent and preparation method thereof |
| CN111848308B (en) * | 2020-08-05 | 2022-04-19 | 山东省农业科学院农业资源与环境研究所 | Saline-alkali soil soybean fertilizer and fertilizing method for improving nutrient efficiency of saline-alkali soil soybeans |
| KR102225884B1 (en) * | 2020-08-07 | 2021-03-11 | (주)엔젤에스캄 | Silicate fertilizer composition and manufacturingmethod thereof |
| CN112723959A (en) * | 2021-03-12 | 2021-04-30 | 南京朴厚生态科技有限公司 | Coastal beach saline-alkali soil conditioner and preparation process thereof |
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Application publication date: 20150909 |