CN101417286B - Alkaline land soil repair agent - Google Patents
Alkaline land soil repair agent Download PDFInfo
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- CN101417286B CN101417286B CN2008101538228A CN200810153822A CN101417286B CN 101417286 B CN101417286 B CN 101417286B CN 2008101538228 A CN2008101538228 A CN 2008101538228A CN 200810153822 A CN200810153822 A CN 200810153822A CN 101417286 B CN101417286 B CN 101417286B
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Abstract
The invention relates to a restoration agent for saline-alkali land soil, which consists of free gypsum dehydration, nature organic substance, microbial fertilizer and inorganic nutrient with weight ratio of 60-70:25-35:1-4:3-6; the content of dihydrate calcium sulfate in the free gypsum dehydration is over 80 percent; the nature organic substance consists of weathered coal and grass carbon with weight ratio of 1.0:0.93; the content of effective bacteria in the microbial fertilizer is 2.0 hundred millions/g; and the inorganic nutrient consists of urea, ordinary superphosphate and potassium chloride with weight ratio of 1.0:2.42:075. The restoration agent can utilize calcium ions in the free gypsum dehydration for replacing sodium ions in the soil so as to lower the alkalinity in the soil and provide calcium and sulfur elements for crops, while the nature organic substance can lower and regulate the slat content and the alkalinity in the soil. In addition, the nature organic substance, the microbial fertilizer and the inorganic nutrient can supply large amount of nutrient elements such as nitrogen, phosphorus, potassium and the like to the crop for normal growth, thereby being capable of improving the yield of the crop.
Description
Technical field
The present invention relates to a kind of soil-repairing agent, particularly relate to a kind of alkaline land soil repair agent.
Background technology
The soil salinization has become a global difficult problem, at present nearly approximately 1,000 ten thousand km of whole world salinized soil area
2, China is 99.13 ten thousand km
2Areas such as the Bohai Sea, the Huanghai Sea and East Sea littoral plain along more than 18000 kilometer coastline of China are distributed with large-area beach salty soil, wherein about 80% do not obtain as yet utilizing, so the improvement in salt-soda soil and reparation are a crucial job.
At present, the chemical method that is used to administer one of salt-soda soil major measure is to adopt the method that soil is applied modifying agent.Existing soil conditioner kind is more, mainly is divided into solid and liquid two big classes.The production process relative complex of liquid soil conditioner wherein, the cost height use also comparatively trouble, and aftereffect is short.The composition of inoganic solids soil conditioner is comparatively single, weak effect, and be used to improve basic soil mostly, and to the improvement of salt and alkaline land based on saliferous, repairing effect is poor, such as the accessory substance that the coal-burning power plant is produced in flue gas desulfurization course---when desulfurated plaster uses as soil conditioner, it is mainly used in the basicity that reduces basic soil, but it is little to the salt content effect that reduces soil, and can not provide required nitrogen for crop, phosphorus, nutrient and organic matters such as potassium also can't increase the biologically active (referring to " effect of flue gas desulfurization waste in alkali-affected soil improvement "＜arid area agricultural research〉2005/04 " the on-the-spot municipal administration of Sino-Japan cooperation Shanxi Province basic soil improvement is investigated "＜Shanxi science and technology〉2002/03) of soil.
Summary of the invention
In order to address the above problem, the object of the present invention is to provide a kind of salt content and basicity that can reduce soil simultaneously, can also increase biological activity of soil for crop provides required nutrient simultaneously, improve the alkaline land soil repair agent of soil physical and chemical property.
In order to achieve the above object, alkaline land soil repair agent provided by the invention by desulfurated plaster, natural organic substance, microorganism fertilizer and inorganic nutrients with 60～70: 25～35: 1～4: 3～6 weight ratio is formed; Wherein in the desulfurated plaster content of calcium sulphate dihydrate more than 80%; Natural organic substance is made up of with 1.0: 0.93 weight ratio the weathered coal and the peat composed of rotten mosses; Effective bacterial content is 2.0 hundred million/gram in the microorganism fertilizer; Inorganic nutrients then is made up of with 1.0: 2.42: 0.75 weight ratio urea, calcium superphosphate and potassium chloride.
Humic acid content is 50～55% in the described weathered coal.
The content of organic matter is 65～70% in the described peat composed of rotten mosses.
Alkaline land soil repair agent provided by the invention is with flue gas desulfurization byproduct---desulfurated plaster is as primary raw material, and it is formulated to add natural organic substance, microorganism fertilizer and inorganic nutrients according to certain ratio.After this soil-repairing agent is applied to the salt-soda soil, it can utilize the calcium ion that contains in the desulfurated plaster to replace sodium ion in the adsorption by soil sex camplex, reduce basicity in the alkaline land soil with this, also for crop provides sufficient calcium and element sulphur, can also utilize humic acid and organic salt content and the basicity that reduces and regulate soil in the natural organic substance of interpolation simultaneously.And, natural organic substance, microorganism fertilizer and inorganic nutrients also can be crop a large amount of essential nutrients such as nitrogen phosphorus potassium are provided, and can increase the biologically active and the physical behavior of improving soil of soil, make the crop normal growth, thereby can improve the output of crop.In addition, because desulfurated plaster is the discarded object that produces in the coal-fired plant flue gas sweetening process, it is made full use of to save resource, and can reduce environmental pollution.
The specific embodiment
Below in conjunction with specific embodiment alkaline land soil repair agent provided by the invention is elaborated.
Embodiment 1:
The desulfurated plaster that takes by weighing about 40～60 μ m of 600kg particle diameter respectively (can buy from the coal-burning power plant, wherein the content of calcium sulphate dihydrate is more than 80%), the natural organic substance of 330kg (weathered coal 171kg wherein, peat composed of rotten mosses 159kg), (the fertile bioengineering Co., Ltd in sea produces the microorganism fertilizer of 27kg, the black powdery, effective bacterial content 2.0 hundred million/gram, has fixed nitrogen, phosphorus decomposing, release the effect of potassium) and the inorganic nutrients of 43kg (urea 10.32kg wherein, calcium superphosphate 24.94kg, potassium chloride 7.74kg), fully mix then, at last the sieve of said mixture with 0.5～1.0cm mesh screened, and sieve again after the particle that stays on the screen cloth pulverized, the flour of collecting by screen cloth promptly can be made into 1 ton of described alkaline land soil repair agent.
Embodiment 2:
Take by weighing the microorganism fertilizer of the desulfurated plaster of about 40～60 μ m of 63kg particle diameter, the natural organic substance of 30kg (wherein weathered coal 15.55kg, peat composed of rotten mosses 14.45kg), 1.8kg and the inorganic nutrients (wherein urea 1.248kg, calcium superphosphate 3.016kg and potassium chloride 0.936kg) of 5.2kg respectively, fully mix then, at last the sieve of said mixture with 0.5～1.0cm mesh screened, and sieve again after the particle that stays on the screen cloth pulverized, the flour of collecting by screen cloth promptly can be made into described alkaline land soil repair agent 100kg.
Embodiment 3:
Take by weighing the microorganism fertilizer of the desulfurated plaster of about 40～60 μ m of 660kg particle diameter, the natural organic substance of 280kg (wherein weathered coal 145.1kg, peat composed of rotten mosses 134.9kg), 23kg and the inorganic nutrients (wherein urea 8.88kg, calcium superphosphate 21.46kg, potassium chloride 6.66kg) of 37kg respectively, fully mix then, at last the sieve of said mixture with 0.5～1.0cm mesh screened, and sieve again after the particle that stays on the screen cloth pulverized, the flour of collecting by screen cloth promptly can be made into 1 ton of described alkaline land soil repair agent.
Embodiment 4:
Take by weighing the microorganism fertilizer of the desulfurated plaster of about 40～60 μ m of 70kg particle diameter, the natural organic substance of 26kg (wherein weathered coal 13.45kg, peat composed of rotten mosses 12.55kg), 1.0kg and the inorganic nutrients (wherein urea 0.72kg, calcium superphosphate 1.74kg, potassium chloride 0.54kg) of 3.0kg respectively, fully mix then, at last the sieve of said mixture with 0.5～1.0cm mesh screened, and sieve again after the particle that stays on the screen cloth pulverized, the flour of collecting by screen cloth promptly can be made into described alkaline land soil repair agent 100kg.
The using method of alkaline land soil repair agent provided by the invention is after being sprinkling upon it on face of land of turning over equably, available rotary cultivator rotary tillage, and make this alkaline land soil repair agent and the abundant mixing of soil, leveling, place and can sow or transplant after 3～4 days.
Listed the application example of several alkaline land soil repair agents provided by the invention below:
1, trial crops: corn
Salinization of soil degree: moderate
Use amount soil total salt quantity % alkalization of soils degree (ESP) % pH output kg/ mu
150kg/ mu 0.1223 8.89 8.54 435.2
CK (NPK) (not using) 0.1326 10.21 8.73 325.7
Foundation soil (test before) 0.2496% 13.89% 8.63
By top data as can be seen, use alkaline land soil repair agent provided by the invention after, with the contrast of not using renovation agent (CK) soil and the test before foundation soil compare, the soil total salt quantity has reduced 7.8% and 51.0% respectively; The alkalization of soils degree has descended 12.9% and 36.0% respectively; Compare corn yield volume increase 33.6% with control soil.
2, trial crops: Chinese cabbage
Soil salinization degree: severe
Use amount soil total salt quantity % alkalization of soils degree (ESP) % pH output kg/ mu
200kg/ mu 0.2688 16.24 8.49 6402
CK (NPK) (not using) 0.3684 17.56 8.67 4804
Foundation soil (before the test) 0.5064 19.39 8.60
By top data as can be seen, use alkaline land soil repair agent provided by the invention after, with the contrast of not using renovation agent (CK) soil and the test before foundation soil compare, the soil total salt quantity has reduced 27.0% and 46.9% respectively; The alkalization of soils degree has descended 7.5% and 16.2% respectively; Compare Chinese cabbage output volume increase 33.3% with control soil.
3, trial crops: cotton
Soil salinization degree: solonchak
Use amount soil total salt quantity % alkalization of soils degree (ESP) % pH output kg/ mu
200kg/ mu 0.29 10.18 7.85 47.8
CK (NPK) (not using) 0.61 11.04 7.92 35.6
Foundation soil (before the test) 1.79 17.54 7.93
By top data as can be seen, use alkaline land soil repair agent provided by the invention after, with the contrast of not using renovation agent (CK) soil and the test before foundation soil compare, the soil total salt quantity has reduced 52.5% and 83.8% respectively; The alkalization of soils degree has descended 7.8% and 42.0% respectively; Compare output of cotton volume increase 34.3% with control soil.
Claims (3)
1. alkaline land soil repair agent is characterized in that: described alkaline land soil repair agent by desulfurated plaster, natural organic substance, microorganism fertilizer and inorganic nutrients with 60～70: 25～35: 1～4: 3～6 weight ratio is formed; Wherein in the desulfurated plaster content of calcium sulphate dihydrate more than 80%; Natural organic substance is made up of with 1.0: 0.93 weight ratio the weathered coal and the peat composed of rotten mosses; Effective bacterial content is 2.0 hundred million a/gram in the microorganism fertilizer; Inorganic nutrients then is made up of with 1.0: 2.42: 0.75 weight ratio urea, calcium superphosphate and potassium chloride.
2. alkaline land soil repair agent according to claim 1 is characterized in that: humic acid content is 50～55% in the described weathered coal.
3. alkaline land soil repair agent according to claim 1 is characterized in that: the content of organic matter is 65～70% in the described peat composed of rotten mosses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101538228A CN101417286B (en) | 2008-12-08 | 2008-12-08 | Alkaline land soil repair agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101538228A CN101417286B (en) | 2008-12-08 | 2008-12-08 | Alkaline land soil repair agent |
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| CN101417286A CN101417286A (en) | 2009-04-29 |
| CN101417286B true CN101417286B (en) | 2010-09-29 |
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| CN2008101538228A Expired - Fee Related CN101417286B (en) | 2008-12-08 | 2008-12-08 | Alkaline land soil repair agent |
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2008
- 2008-12-08 CN CN2008101538228A patent/CN101417286B/en not_active Expired - Fee Related
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