CN105144902A - Method for improving saline and alkaline land through ardealite, DMTU and biological bacteria - Google Patents
Method for improving saline and alkaline land through ardealite, DMTU and biological bacteria Download PDFInfo
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- CN105144902A CN105144902A CN201510536312.9A CN201510536312A CN105144902A CN 105144902 A CN105144902 A CN 105144902A CN 201510536312 A CN201510536312 A CN 201510536312A CN 105144902 A CN105144902 A CN 105144902A
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- ardealite
- biological bacteria
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Abstract
The invention provides a method for improving saline and alkaline land through ardealite, DMTU and biological bacteria. The method includes the steps that first, the land is treated with ardealite; then, the land is treated with a mixture of DMTU, a curing agent and an improver; finally, the land is treated with a material obtained after mixed treatment of straw and biological bacteria. By the adoption of the method for improving the saline and alkaline land, saline and alkaline soil can be rapidly improved to be suitable for crop growth; besides, the improver is wide in application range and suitable for soil improvement on soil salinization and alkalinization caused by different reasons in different areas and can improve the soil structure, lower soil alkalinity, increase the soil salt rejection ratio, improve soil fertility, promote crop growth and improve agricultural economy when reasonably applied into soil.
Description
Technical field
The present invention relates to saline land processing technology field, particularly relate to a kind of method that ardealite+dimethylene triurea+biological bacteria improves saline land.
Background technology
Saline land is the general name of solonchak and alkaline earth and various salinization, alkali-affected soil.Solonchak refers to that in soil, soluble organic fraction content acquires a certain degree, and can produce the great soil group of obviously harm to the g and D of plant.Alkaline earth refers to that quantity reaches the degree that can endanger plant growth and growth containing a large amount of exchangeability ion in soil, and the soil that soil property is changed.In actual state, solonchak and alkaline earth often exist in a mixed way jointly, are referred to as saline land.
Saline land is important land resources, and it is a kind of soil types of extensively distribution on the earth.About nearly 1,000,000,000 hectares of whole world saline soil area, China's Resource of Saline Soil is distributed widely in 17 provinces and regions based on the north, the main integrated distribution region of northwest, northeast, North China and coastal Deng Shi China saline soil, the gross area reaches more than 500,000,000 mus, and account for that the whole nation can utilize land area nearly 5%.The wherein gross area in Coastal beach saline land about 2,350,000 hm
2, and now annual still with 2-3 ten thousand hm
2speed become silted up rise.Saline land control and exploitation are the problems that irrigated area agricultural development can not be ignored, and for promotion agricultural sustainable development, Ensuring Food Safety has important function.
The Method and Technology in domestic process saline land is summed up roughly as follows: (1) is physically improved; Level land, deep plough sun the earth which has been ploughed up, loosen the soil in time, raise landform, microcell is improved the soil.(2) water conservancy improvement.Fill with deploying cover, storage fresh water on saline-alkali land for leaching, washing salinity by irrigation, underground salt discharge.(3) chemical modifying; The chemical agents such as ardealite, superphosphate, fulvic acid are used to improve.(4) biological modification; Rice cultivation, plantation salt-tolerant plant Tian Qing etc., use microbial-bacterial fertilizer etc.At present, the soil conditioner of soil salinization chemical harnessing is more, as gypsum, calcium sulphate, superphosphate, trade waste ardealite, industrial waste acid, fertilizer, detritus acid, flyash, peat, fermentation acid-sludge etc., these all achieve certain effect to improvement saline land, relatively more conventional is fertilizer, gypsum, and wherein gypsum is with Ca
2+displacement Na
+and improved saline land by sour neutralization bases; But be subject to as complex manufacturing, cost restriction that is high and some other condition can not obtain large-area popularization.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of method that ardealite+dimethylene triurea+biological bacteria improves saline land.
The present invention is achieved by the following technical programs.
A kind of ardealite+dimethylene triurea+biological bacteria provided by the invention improves the method in saline land, comprises the following steps:
(1) ardealite is sprinkling upon saline and alkaline the earth's surface equably, and the 20cm that deep ploughs, ardealite is mixed with soil layer, keeps 10 ~ 20 days;
(2) then the mixture of dimethylene triurea, curing agent, modifier is sprinkling upon saline and alkaline the earth's surface equably, and the 20cm that deep ploughs, the mixture of dimethylene triurea, curing agent, modifier is mixed with soil layer, keeps 5 ~ 10 days;
(3) by stalk and biological bacteria mixed processing, the material A obtained is sprinkling upon saline and alkaline the earth's surface equably, and the 20cm that deep ploughs, make material mix with soil layer all with, and keep 20 ~ 30 days;
In above-mentioned, the consumption of ardealite is 200 ~ 1200kg/ mu; The amount of mixture of dimethylene triurea, curing agent, modifier is 20 ~ 150kg/ mu, and the material amounts of stalk and biological bacteria mixed processing is 50 ~ 400kg/ mu.
Further, the mixed proportion of described dimethylene triurea, curing agent, modifier is: 20:(0.5 ~ 3): (0.5 ~ 3);
Further, above-mentioned material is deposited separately before use, mixes in use.
Further, described curing agent is at least one in zinc sulphate, trimethyl phosphate, diethy-aceto oxalate, oxalic acid, phthalic acid.
Further, described modifier is at least one in polyethylene glycol, CMC.
Further, described step (2) is after the mixture adding dimethylene triurea, curing agent, modifier, and spray clear water, the saline land making 20cm dark is moistening.
Further, the making step of described material A is: shattered by stalk, then adds animal wastes and biological bacteria, sealed fermenting 20 ~ 30 days;
In above-mentioned, mixed weight shatters than for stalk: animal wastes: biological bacteria=100:(10 ~ 20): (1 ~ 5).
Further, described biological bacteria comprises bacillus subtilis, salt tolerant Azospirillum brasilense, Salt And Alkali Tolerance phosphate solubilizing bacteria, S. cervisiae, alkaliphile, cellulose decomposition bacteria, and often kind of biological bacteria viable count in biological bacteria is content is 1 × 10
3 ~ 5more than cfu/g.
Further, the consumption of various material of the present invention is determined according to different saline lands, is specially:
In slight alkaline land, the consumption of ardealite is 200 ~ 600kg/ mu, mixture 20 ~ 50kg/ mu of dimethylene triurea, curing agent, modifier, material A 50 ~ 150kg/ mu;
In moderate saline-alkali soil, the consumption of ardealite is 600 ~ 900kg/ mu; Mixture 50 ~ 100kg/ mu of dimethylene triurea, curing agent, modifier, material A 150 ~ 300kg/ mu;
In heavy salinized ground, the consumption of ardealite is 900 ~ 1200kg/ mu; Mixture 100 ~ 150kg/ mu of dimethylene triurea, curing agent, modifier, material A 300 ~ 400kg/ mu.
Beneficial effect of the present invention is:
1), in this method, ardealite is aobvious acid, and it can neutralize with the saline land of aobvious alkalescence, effectively can reduce the pH value in saline land;
2) contained in ardealite calcium ion can with carbonate in saline land and bicarbonate radical generation chemical reaction, generate calcium carbonate and calcium bicarbonate, wherein calcium carbonate is water insoluble, calcium bicarbonate is slightly soluble in water, the character of calcium carbonate and calcium bicarbonate can impel Zinc fractions granular structure, and its granular structure can wrapping portion sodium ion, promotes desalinization of soil by flooding or leaching speed, reduce the bulk density of soil simultaneously, increase soil water permeability;
3) dimethylene triurea is line-like structures, it has binding agent effect, the granular structure formed is reacted in ardealite and saline land, after interpolation dimethylene triurea, dimethylene triurea can promote the formation of granular structure, and dimethylene triurea can fill up the vacancy position in the granular structure of calcium carbonate and calcium bicarbonate formation simultaneously, makes granular structure inside and outside portion relative insulation, reduce the sodium ion of mobility in soil, promote desalinization of soil by flooding or leaching speed;
4) dimethylene triurea can slowly decompose at temperature and microbial action, and during decomposition, can form organic salt with the cation such as the sodium in soil, calcium, the solvability of its organic salt is low, reduces the cation such as sodium, calcium of soil free state;
5) dimethylene triurea itself is slow-release fertilizer, and the product after its decomposition can provide nitrogen element for plant, can not cause the secondary pollution of soil;
6) when using dimethylene triurea, adding curing agent and modifier, dimethylene triurea rapid curing can be impelled, granular structure can be impelled to be formed fast.
7) stalk can increase the water penetration of soil, gas permeability and moisture retention, increases the content of organic matter of soil, and increase bacterial content in soil, bacterial population increase can reduce the part saliferous in saline land;
8) biological bacteria comprises bacillus subtilis, salt tolerant Azospirillum brasilense, Salt And Alkali Tolerance phosphate solubilizing bacteria, S. cervisiae, alkaliphile, cellulose decomposition bacteria; Itself and stalk are used in combination, can grow fast, and absorb the part salinity in saline land in soil, reduce the salt content in saline land;
9) adopt biological bacteria and stalk to be pre-mixed fermentation, make biological bacteria amount reproduction, reduce the time in the saline land of biological bacteria process;
10) in the present invention, ardealite is first adopted to process saline land, reduce pH value, simultaneously by generating calcium carbonate, the granular structure such as calcium bicarbonate, and then add the materials such as dimethylene triurea, the granular structure being is formed more fast, and fill up the position, space of granular structure, the inner relative insulation of the granular structure being, reduce the sodium ions content of the mobility in soil, the salt content in soil is reduced with this, the last material adding stalk and biological bacteria mixed processing again, avoid relative strong basicity suddenly to the suppression of biological bacteria, biological bacteria is attached to stalk surface, fast processing is carried out to soil, absorb salinity, the object lowering soil salt is reached with this.
The present invention adopts above-mentioned saline and alkali land improvement method, can quick improvement saline-alkali soil, suitable for crop grows, and this modifying agent operation strategies is wider, be applicable to different regions, salinization of soil soil melioration that different reason causes, rationally be manured into soil, can soil structure be improved, reduce soil alkalinity, improve soil salt discharge rate, increase soil fertility, promote the growth of crops, improve agricultural economy.
Embodiment
Further describe technical scheme of the present invention below, but described in claimed scope is not limited to.
Embodiment one
1, raw material prepares
Ardealite;
Trimethylene two urea, structural formula is:
Curing agent, is chosen as at least one in zinc sulphate, trimethyl phosphate, diethy-aceto oxalate, oxalic acid, phthalic acid, and the present embodiment selects zinc sulphate;
Modifier, is chosen as at least one in polyethylene glycol, CMC, and the present embodiment selects polyethylene glycol;
Stalk;
Animal wastes, optional pig manure, cow dung, sheep excrement, chicken manure etc., the present embodiment selects pig manure;
Biological bacteria, comprises bacillus subtilis, salt tolerant Azospirillum brasilense, Salt And Alkali Tolerance phosphate solubilizing bacteria, S. cervisiae, alkaliphile, cellulose decomposition bacteria, and often kind of biological bacteria viable count in biological bacteria is content is 1 × 10
3 ~ 5more than cfu/g;
2, a kind of ardealite+dimethylene triurea+biological bacteria improves the method in saline land
(1) material A makes, and is first shattered by stalk, then adds animal wastes and biological bacteria, sealed fermenting 20 days, and mixed weight shatters than for stalk: animal wastes: biological bacteria=100:10:1;
(2) ardealite is sprinkling upon saline and alkaline the earth's surface equably, and the 20cm that deep ploughs, ardealite is mixed with soil layer, keeps 10 days;
(3) then the ratio of dimethylene triurea, curing agent, modifier ammonium 20:0.5:0.5 is mixed, then saline and alkaline the earth's surface is sprinkling upon equably, and deep plough 20cm, the mixture of dimethylene triurea, curing agent, modifier is mixed with soil layer, spray clear water, the saline land making 20cm dark is moistening, keeps 5 days;
(4) material A is sprinkling upon saline and alkaline the earth's surface equably, and the 20cm that deep ploughs, make material mix with soil layer all with, and keep 20 days;
The consumption of various material of the present invention is determined according to different saline lands, is specially:
In slight alkaline land, the consumption of ardealite is 200kg/ mu, the mixture 20kg/ mu of dimethylene triurea, curing agent, modifier, material A 50kg/ mu;
In moderate saline-alkali soil, the consumption of ardealite is 600kg/ mu; The mixture 50kg/ mu of dimethylene triurea, curing agent, modifier, material A 150kg/ mu;
In heavy salinized ground, the consumption of ardealite is 900kg/ mu; The mixture 100kg/ mu of dimethylene triurea, curing agent, modifier, material A 300kg/ mu.
Embodiment two
1, raw material prepares
Ardealite;
Trimethylene two urea, structural formula is:
Curing agent, is chosen as at least one in zinc sulphate, trimethyl phosphate, diethy-aceto oxalate, oxalic acid, phthalic acid, and the present embodiment selects zinc sulphate;
Modifier, is chosen as at least one in polyethylene glycol, CMC, and the present embodiment selects polyethylene glycol;
Stalk;
Animal wastes, optional pig manure, cow dung, sheep excrement, chicken manure etc., the present embodiment selects pig manure;
Biological bacteria, comprises bacillus subtilis, salt tolerant Azospirillum brasilense, Salt And Alkali Tolerance phosphate solubilizing bacteria, S. cervisiae, alkaliphile, cellulose decomposition bacteria, and often kind of biological bacteria viable count in biological bacteria is content is 1 × 10
3 ~ 5more than cfu/g;
2, a kind of ardealite+dimethylene triurea+biological bacteria improves the method in saline land
(1) material A makes, and is first shattered by stalk, then adds animal wastes and biological bacteria, sealed fermenting 30 days, and mixed weight shatters than for stalk: animal wastes: biological bacteria=100:20:5;
(2) ardealite is sprinkling upon saline and alkaline the earth's surface equably, and the 20cm that deep ploughs, ardealite is mixed with soil layer, keeps 20 days;
(3) then the ratio of dimethylene triurea, curing agent, modifier ammonium 20:3:3 is mixed, then saline and alkaline the earth's surface is sprinkling upon equably, and deep plough 20cm, the mixture of dimethylene triurea, curing agent, modifier is mixed with soil layer, spray clear water, the saline land making 20cm dark is moistening, keeps 10 days;
(4) material of stalk and biological bacteria mixed processing is sprinkling upon saline and alkaline the earth's surface equably, and the 20cm that deep ploughs, make material mix with soil layer all with, and keep 30 days;
The consumption of various material of the present invention is determined according to different saline lands, is specially:
In slight alkaline land, the consumption of ardealite is 600kg/ mu, the mixture 50kg/ mu of dimethylene triurea, curing agent, modifier, material A 150kg/ mu;
In moderate saline-alkali soil, the consumption of ardealite is 900kg/ mu; The mixture 100kg/ mu of dimethylene triurea, curing agent, modifier, material A 300kg/ mu;
In heavy salinized ground, the consumption of ardealite is 1200kg/ mu; The mixture 150kg/ mu of dimethylene triurea, curing agent, modifier, material A 400kg/ mu.
Embodiment three
1, raw material prepares
Ardealite;
Trimethylene two urea, structural formula is:
Curing agent, is chosen as at least one in zinc sulphate, trimethyl phosphate, diethy-aceto oxalate, oxalic acid, phthalic acid, and the present embodiment selects zinc sulphate;
Modifier, is chosen as at least one in polyethylene glycol, CMC, and the present embodiment selects polyethylene glycol;
Stalk;
Animal wastes, optional pig manure, cow dung, sheep excrement, chicken manure etc., the present embodiment selects pig manure;
Biological bacteria, comprises bacillus subtilis, salt tolerant Azospirillum brasilense, Salt And Alkali Tolerance phosphate solubilizing bacteria, S. cervisiae, alkaliphile, cellulose decomposition bacteria, and often kind of biological bacteria viable count in biological bacteria is content is 1 × 10
3 ~ 5more than cfu/g;
2, a kind of ardealite+dimethylene triurea+biological bacteria improves the method in saline land
(1) material A makes, and is first shattered by stalk, then adds animal wastes and biological bacteria, sealed fermenting 20 ~ 30 days, and mixed weight shatters than for stalk: animal wastes: biological bacteria=100:15:3;
(2) ardealite is sprinkling upon saline and alkaline the earth's surface equably, and the 20cm that deep ploughs, ardealite is mixed with soil layer, keeps 15 days;
(3) then the ratio of dimethylene triurea, curing agent, modifier ammonium 20:2:2 is mixed, then saline and alkaline the earth's surface is sprinkling upon equably, and deep plough 20cm, the mixture of dimethylene triurea, curing agent, modifier is mixed with soil layer, spray clear water, the saline land making 20cm dark is moistening, keeps 8 days;
(4) material A is sprinkling upon saline and alkaline the earth's surface equably, and the 20cm that deep ploughs, make material mix with soil layer all with, and keep 25 days;
The consumption of various material of the present invention is determined according to different saline lands, is specially:
In slight alkaline land, the consumption of ardealite is 400kg/ mu, the mixture 35kg/ mu of dimethylene triurea, curing agent, modifier, material A 100kg/ mu;
In moderate saline-alkali soil, the consumption of ardealite is 750kg/ mu; The mixture 70kg/ mu of dimethylene triurea, curing agent, modifier, material A 220kg/ mu;
In heavy salinized ground, the consumption of ardealite is 1100kg/ mu; The mixture 120kg/ mu of dimethylene triurea, curing agent, modifier, material A 350kg/ mu.
The above, it is only better example of the present invention, not any pro forma restriction is done to the present invention, anyly do not depart from technical solution of the present invention content, the any simple modification done above example according to technical spirit of the present invention, coversion material equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Meanwhile, in order to be further elaborated beneficial effect of the present invention, present inventor has performed a large amount of property used test, special instruction, the present invention's test is intended to the beneficial effect that the technology of the present invention is described, is never only limitted to scope of the present invention.
Test method: select the saline land of Haixing County, Cangzhou, Hebei Province to test, experimental group: use above-described embodiment one ~ embodiment three to process the saline land of different salinity, and throw in N
2o8kg/ mu, P
2o
55kg/ mu, K
2the fertilizer of O3kg/ mu, carries out plantation wheat; Control group: independent ardealite process is carried out to the saline land of different salt content, total consumption of the material of the saline and alkali land improvement method of the corresponding embodiment one ~ embodiment three of consumption difference of ardealite, and throw in N
2o8kg/ mu, P
2o
55kg/ mu, K
2the fertilizer of O3kg/ mu, carries out plantation wheat.By statistics output, in slight alkaline land, use the saline land wheat yield of the modifying agent process of the present embodiment than using the high by 30 ~ 40% of ardealite process; In moderate saline-alkali soil, use the saline land wheat yield of the modifying agent process of the present embodiment than using the high by 35 ~ 50% of ardealite process; In heavy salinized ground, use the saline land wheat yield of the modifying agent process of the present embodiment than using the high by 55 ~ 90% of ardealite process.
Claims (8)
1. improve the method in saline land by ardealite+dimethylene triurea+biological bacteria, it is characterized in that: comprise the following steps:
(1) ardealite is sprinkling upon saline and alkaline the earth's surface equably, and the 20cm that deep ploughs, ardealite is mixed with soil layer, keeps 10 ~ 20 days;
(2) then the mixture of dimethylene triurea, curing agent, modifier is sprinkling upon saline and alkaline the earth's surface equably, and the 20cm that deep ploughs, the mixture of dimethylene triurea, curing agent, modifier is mixed with soil layer, keeps 5 ~ 10 days;
(3) by stalk and biological bacteria mixed processing, the material A obtained is sprinkling upon saline and alkaline the earth's surface equably, and the 20cm that deep ploughs, make material mix with soil layer all with, and keep 20 ~ 30 days;
In above-mentioned, the consumption of ardealite is 200 ~ 1200kg/ mu; The amount of mixture of dimethylene triurea, curing agent, modifier is 20 ~ 150kg/ mu, and material A consumption is 50 ~ 400kg/ mu.
2. ardealite+dimethylene triurea+biological bacteria as claimed in claim 1 improves the method in saline land, it is characterized in that: the mixed proportion of described dimethylene triurea, curing agent, modifier is: 20:(0.5 ~ 3): (0.5 ~ 3);
Further, above-mentioned material is deposited separately before use, mixes in use.
3. ardealite+dimethylene triurea+biological bacteria as claimed in claim 1 or 2 improves the method in saline land, it is characterized in that: described curing agent is at least one in zinc sulphate, trimethyl phosphate, diethy-aceto oxalate, oxalic acid, phthalic acid.
4. ardealite+dimethylene triurea+biological bacteria as claimed in claim 1 or 2 improves the method in saline land, it is characterized in that: described modifier is at least one in polyethylene glycol, CMC.
5. ardealite+dimethylene triurea+biological bacteria as claimed in claim 1 improves the method in saline land, it is characterized in that: described step (2) is after the mixture adding dimethylene triurea, curing agent, modifier, spray clear water, the saline land making 20cm dark is moistening.
6. ardealite+dimethylene triurea+biological bacteria as claimed in claim 1 improves the method in saline land, it is characterized in that: the making step of described material A is: shattered by stalk, then adds animal wastes and biological bacteria, sealed fermenting 20 ~ 30 days;
In above-mentioned, mixed weight shatters than for stalk: animal wastes: biological bacteria=100:(10 ~ 20): (1 ~ 5).
7. the method improving saline land by ardealite+dimethylene triurea+biological bacteria as described in claim 1 or 6, it is characterized in that: described biological bacteria comprises bacillus subtilis, salt tolerant Azospirillum brasilense, Salt And Alkali Tolerance phosphate solubilizing bacteria, S. cervisiae, alkaliphile, cellulose decomposition bacteria, and often kind of biological bacteria viable count in biological bacteria is content is 1 × 10
3 ~ 5more than cfu/g.
8. ardealite+dimethylene triurea+biological bacteria as claimed in claim 1 improves the method in saline land, it is characterized in that: the consumption of various material of the present invention is determined according to different saline lands, is specially:
In slight alkaline land, the consumption of ardealite is 200 ~ 600kg/ mu, mixture 20 ~ 50kg/ mu of dimethylene triurea, curing agent, modifier, material A 50 ~ 150kg/ mu;
In moderate saline-alkali soil, the consumption of ardealite is 600 ~ 900kg/ mu; Mixture 50 ~ 100kg/ mu of dimethylene triurea, curing agent, modifier, material A 150 ~ 300kg/ mu;
In heavy salinized ground, the consumption of ardealite is 900 ~ 1200kg/ mu; Mixture 100 ~ 150kg/ mu of dimethylene triurea, curing agent, modifier, material A 300 ~ 400kg/ mu.
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| CN201510536312.9A CN105144902A (en) | 2015-08-28 | 2015-08-28 | Method for improving saline and alkaline land through ardealite, DMTU and biological bacteria |
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ID=54786307
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| CN1854245A (en) * | 2005-04-27 | 2006-11-01 | 王莹 | Improvement of vegetative salt alkaline land soil |
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Application publication date: 20151216 |