CN102177774B - Method for enhancing evaporation resisting and water preserving ability of sandy soil - Google Patents
Method for enhancing evaporation resisting and water preserving ability of sandy soil Download PDFInfo
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- CN102177774B CN102177774B CN201010574785A CN201010574785A CN102177774B CN 102177774 B CN102177774 B CN 102177774B CN 201010574785 A CN201010574785 A CN 201010574785A CN 201010574785 A CN201010574785 A CN 201010574785A CN 102177774 B CN102177774 B CN 102177774B
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- stalk
- crops straw
- modified straw
- improvement material
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
Abstract
The invention discloses a method for enhancing evaporation resisting and water preserving capacity of sandy soil, comprising the steps of adding modified straw materials into soil, and fully mixing the modified straw materials with surface soil. The modified straw materials are added according to the addition standard that when the content of organic matters is less than 0.5%, the additive amount of the modified straw materials is 1000 to 1200kg/mu; when the content of organic matters is between 0.5% and 1.5%, the additive amount of the modified straw materials is 500 to 800 kg/mu; and when the content of organic matters is larger than 1.5%, the additive amount of the modified straw materials is 200 to 300 kg/mu. Due to the adoption of the method, lower cost is obtained, and the structure of the soil can be improved and the soil fertility is improved. The sandy soil or cultivated land needs not to be subjected to any project modification without final-period management. All in all, by adopting the method, ecological validity of sandy soil moisture can be efficiently enhanced and soil desertification and soil erosion are controlled, and product output of unit area is favorably increased.
Description
Technical field
The present invention relates to the sand improving technology, specifically refer to a kind of method that improves sand anti-evaporating and water retention capacity, belong to sand improvement and soil desertification Prevention Technique field.
Background technology
The phenomenon of China's desertification of land is very serious at present, and Chinese desertification situation communique showed in 2005, and by 2004, national sandy land area was about 1.74 * 10
6Km
2, accounting for 18.12% of territory total area, the desertification arable area accounts for 2.66% of the sandy land gross area.Decomposition velocity of organic substances is very fast in the sand, is difficult for accumulation, causes the sand nutrient preserving capability poor.Simultaneously, sand particle interphase interaction power is less, and quality is loose, and soil permeability is good, and hole is big, a little less than the capillarity, causes a little less than sand poor water retention property, the retaining power.The loss of moisture and nutrient causes the sand productivity to descend.Therefore, it is very urgent to seek the technical method that scientific and effective, application prospect improve sand anti-evaporating and water retention capacity widely.
In recent years, the technology of various improvement sand anti-evaporatings and water retention capacity is born in succession, and these technology are main modifying agent with PAM mostly, although have certain application effect, the PAM consumption is big, cost is high but exist, and is prone to cause shortcomings such as soil crust.
Summary of the invention
Above-mentioned deficiency to prior art exists the object of the present invention is to provide the method that a kind of cost is low, can significantly improve sand moisture ecological effectiveness.
Technical scheme of the present invention is achieved in that the method that improves sand anti-evaporating and water retention capacity; Be stalk to be improved material add in the soil and fully mix with topsoil; Its interpolation standard is: when soil with organic matter content less than 0.5% the time, stalk improvement material addition is a 1000-1200kg/ mu; When soil with organic matter content was between 0.5%-1.5%, stalk improvement material addition was a 500-800kg/ mu; When soil with organic matter content greater than 1.5% the time, stalk improvement material addition is a 200-300kg/ mu; Said stalk improvement material is evenly mixed by mass ratio 900-1000:100-120:5-30 by crops straw, calcium-base bentonite and the anion-polyacrylamide handled through decomposition.
Said anion-polyacrylamide molecular weight is 8,000,000-1,200 ten thousand, and degree of hydrolysis is 20-40%.The anion-polyacrylamide preferred molecular weight is 1,000 ten thousand, and degree of hydrolysis is 30%.
Said crops straw decomposition processing method is: the crops straw after air-dry is cut into 5-10cm length and puts into the pond; Amount by crops straw 3-5 kg per ton adds the whiterot fungi microbial inoculum, and it is moistening to water, mixing; Cover with plastic foil; Treat that crops straw humification rate reaches 20% when above, open plastic foil and air-dry crops straw, final powder is broken to 1.5-2.5mm and gets final product.
Said calcium-base bentonite fineness is less than 200 orders.
Compare prior art, this method has following beneficial effect:
1. compare with simple chemical modifying material, this method cost is lower, has considerable economy, environmental benefit;
2. organic materials such as stalk of the present invention has the raw material wide material sources, cost is low, the lasting period is long, advantage such as multiple functional, and is rich in a large amount of organic matters, nitrogen, phosphorus, potassium and trace element; Polyacrylamide and bentonite have very strong adsorption capacity, can improve soil structure, increase soil fertility, and these effects show more obviously in sandy soil;
3. need not carry out any engineeredly to sandy land or arable land, need not final-period management, and easy to operate, can grasp flexibly the opportunity of applying.
4. this method can be utilized a large amount of discarded crops straws, turn waste into wealth, and the pollution of having avoided traditional crop straw burning method that environment is brought.
In a word, this method can effectively improve sand moisture ecological effectiveness, control soil desertifies and water and soil loss, and is very helpful to improving the unit are crop yield.
Embodiment
Be described further in the face of technical scheme of the present invention down.
The present invention improves the method for sand moisture ecological effectiveness, is stalk to be improved material add in the soil and fully mix with topsoil.Its interpolation standard is: when soil with organic matter content less than 0.5% the time, stalk improvement material addition is a 1000-1200kg/ mu; When soil with organic matter content was between 0.5%-1.5%, stalk improvement material addition was a 500-800kg/ mu; When soil with organic matter content greater than 1.5% the time, stalk improvement material addition is a 200-300kg/ mu.
Said stalk improvement material is evenly mixed by mass ratio 900-1000:100-120:5-30 by the crops straw, calcium-base bentonite (fineness is less than 200 orders) and the anion-polyacrylamide PAM that handle through decomposition.Preferable mass ratio can be 950:110:6,900:100:10,900:100:20,900:100:30,980:120:25,1000:115:30.Said anion-polyacrylamide molecular weight is 8,000,000-1,200 ten thousand, and degree of hydrolysis is 20-40%.Preferred molecular weight is 1,000 ten thousand, and degree of hydrolysis is 30%.
Said crops straw decomposition processing method is: the crops straw after air-dry is cut into 5-10cm length and puts into the pond; Amount by crops straw 3-5 kg per ton adds the whiterot fungi microbial inoculum, and it is moistening to water, mixing; Cover with plastic foil; Treat that crops straw humification rate reaches 20% when above (after being generally 20-30 days), open plastic foil and air-dry crops straw, final powder is broken to 1.5-2.5mm and gets final product.
Stalk can provide a large amount of organic matters, nitrogen, phosphorus, potassium and trace element, also can improve the physicochemical property of sand, has advantages such as raw material are easy to get, cost is low, the lasting period is long, multiple functional; And nanorize bentonite and PAM also are good soil conditioners; To improving soil structure, increasing soil moisture, preserve moisture and fertility soil moisture conservation etc. has good improved effect, thereby finds the method that improves sand moisture ecological effectiveness; To reach the improvement sand; Improve its water retention property, control soil desertifies and water and soil loss, improves purposes such as unit are crop yield.
China is annual to produce about 10
9The stalk of ton is applied to the sand improvement with stalk and has very considerable economy, environmental benefit, has avoided traditional burning method stalk to be handled the environmental pollution that is brought.Stalk not only can provide essential mineral elements such as nitrogen phosphorus potassium for soil, and the certain processing of process can also improve the moisture ecological effectiveness of sand, desertifies for control soil, and it is significant to improve output.
Below provide an embodiment to help to understanding of the present invention:
One, produce one ton of sand stalk improvement material: (1) stalk preliminary treatment: it is long that (wheat) stalk after air-dry is cut into 5-10cm, puts it in the pond, and the mass ratio of pressing 1000:5 adds the whiterot fungi microbial inoculum; It is moistening to water; Mixing covers with plastic foil, treats that stalk humification rate reaches 20% when above; It is air-dry to open plastic foil, is crushed to about 2mm to get final product again; (2) compound method: take by weighing 880 kilograms of stalk preliminary treatment products, 100 kilograms of 200 order calcium-base bentonites, 20 kilograms of anionic PAMs (molecular weight 1,000 ten thousand, degree of hydrolysis 30%), mixing, pack.Also can, the field directly use after according to said method preparing.
Two, application process: plough (1) spreads fertilizer over the fields method: before real tillage; The stalk improvement material that has prepared evenly is sprinkling upon the surface of ploughing by aforementioned interpolation standard; With the machine of plowing then; Stalk improvement material and topsoil are mixed, sowing then, pouring gets final product.From spreading fertilizer over the fields cost and workload and spreading fertilizer over the fields effect and consider, spread fertilizer over the fields once and can meet the demands in 1 year.(2) grassland desertification shrub application process: earlier with the soil scarifying around the root, then the stalk improvement material for preparing is spread fertilizer over the fields at soil surface, stalk improvement material and topsoil are mixed, pouring water gets final product.Spread fertilizer over the fields every year twice.(3) desertification meadow application process: by aforementioned interpolation standard consumption, stalk is improved material evenly spread fertilizer over the fields on the desertification meadow, it is moistening to water; Cover with plastic foil, to the 2-3cm height, open plastic foil at the grass-seed germination and growth; In 1-2; Avoid livestock to destroy,, can suppress the grassland desertification process to promote plant growing, covering.
Three, effect explanation
With the sand stalk improvement material that present embodiment is produced, under normal field fertilization administrative situation, use 500kg/ mu and carry out field trial.The result shows: after the stalk of embodiment improvement material is applied sand; Saturated hydraulic conductivity in soil increases by 4.97 times, and field capacity has increased by 31.2%, and is fairly obvious to the improved effect of soil; Effectively increased the content of moisture in the soil; And reduced the souring of waterpower to the face of land, effectively preventing the sand water and soil loss, thereby improved the moisture ecological effectiveness of sandy or prone soil.
Claims (2)
1. improve the method for sand anti-evaporating and water retention capacity; It is characterized in that: stalk is improved material add in the soil and fully mix with topsoil; Its interpolation standard is: when soil with organic matter content less than 0.5% the time, stalk improvement material addition is a 1000-1200kg/ mu; When soil with organic matter content was between 0.5%-1.5%, stalk improvement material addition was a 500-800kg/ mu; When soil with organic matter content greater than 1.5% the time, stalk improvement material addition is a 200-300kg/ mu; Said stalk improvement material is evenly mixed by mass ratio 900-1000:100-120:5-30 by crops straw, calcium-base bentonite and the anion-polyacrylamide handled through decomposition;
Said anion-polyacrylamide molecular weight is 1,000 ten thousand, and degree of hydrolysis is 30%;
Said crops straw decomposition processing method is: the crops straw after air-dry is cut into 5-10cm length and puts into the pond; Amount by crops straw 3-5 kg per ton adds the whiterot fungi microbial inoculum, and it is moistening to water, mixing; Cover with plastic foil; Treat that crops straw humification rate reaches 20% when above, open plastic foil and air-dry crops straw, final powder is broken to 1.5-2.5mm and gets final product.
2. the method for raising sand moisture ecological effectiveness according to claim 1 is characterized in that: said calcium-base bentonite fineness is less than 200 orders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010574785A CN102177774B (en) | 2010-12-06 | 2010-12-06 | Method for enhancing evaporation resisting and water preserving ability of sandy soil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010574785A CN102177774B (en) | 2010-12-06 | 2010-12-06 | Method for enhancing evaporation resisting and water preserving ability of sandy soil |
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| Publication Number | Publication Date |
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| CN102177774A CN102177774A (en) | 2011-09-14 |
| CN102177774B true CN102177774B (en) | 2012-09-05 |
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Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102656971B (en) * | 2012-04-13 | 2015-01-28 | 郝国成 | Production method and application of sandy land conditioner made from bentonite |
| CN103039147B (en) * | 2013-01-06 | 2014-12-31 | 中国矿业大学(北京) | Reclamation method for sunk paddy field caused by mining in mountainous regions |
| CN105130706B (en) * | 2015-09-02 | 2017-03-08 | 山东农大肥业科技有限公司 | A kind of sand soil conditioner and its continuous steaming pressure device and method |
| CN105860987A (en) * | 2016-06-06 | 2016-08-17 | 佛山市聚成生化技术研发有限公司 | Composite type soil improvement agent and preparation method thereof |
| CN105950183A (en) * | 2016-06-30 | 2016-09-21 | 江苏省有色金属华东地质勘查局地球化学勘查与海洋地质调查研究院 | Improver of soil physicochemical characters and preparation method thereof |
| CN106358495B (en) * | 2016-10-25 | 2018-08-21 | 中国科学院地理科学与资源研究所 | A method of carrying out forage rape plantation in Loess Plateau |
| CN106554782B (en) * | 2016-11-01 | 2019-08-06 | 中国农业大学 | Sand is promoted to form the soil conditioner and its application method of crumb structure |
| CN106612690A (en) * | 2016-11-21 | 2017-05-10 | 扬州大学 | Improvement method for enhancing infiltration and detention of soil |
| CN107371432B (en) * | 2017-08-30 | 2020-10-20 | 中国一冶集团有限公司 | Method for comprehensively improving beach sandy soil by using biochar soil and building waste soil |
| CN108164184B (en) * | 2018-02-08 | 2020-09-04 | 苏州中材建设有限公司 | Environment-friendly high-water-content clay curing agent and use method thereof |
| CN108207488B (en) * | 2018-03-16 | 2020-06-30 | 武汉蔬博农业科技有限公司 | Method for cultivating morchella in sandy soil |
| CN111826164A (en) * | 2020-05-06 | 2020-10-27 | 中国水利水电科学研究院 | Mixed biological powder and method for reducing soil moisture evaporation |
| CN112175626A (en) * | 2020-11-06 | 2021-01-05 | 成都环美园林生态股份有限公司 | Preparation method of sandy soil conditioner for Gobi desert |
| CN115505403B (en) * | 2022-10-20 | 2024-02-23 | 山东农业大学 | Improved material for rapidly improving soil fertility of supplementary farmland and preparation method thereof |
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| CN101884288A (en) * | 2010-07-02 | 2010-11-17 | 云南华卿亿安生物工程有限公司 | Environmentally friendly biomass nutrient planting pot and use method thereof |
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| GB0304092D0 (en) * | 2003-02-22 | 2003-03-26 | Kverneland Asa | Soil working method and apparatus |
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|---|---|---|---|---|
| CN101884288A (en) * | 2010-07-02 | 2010-11-17 | 云南华卿亿安生物工程有限公司 | Environmentally friendly biomass nutrient planting pot and use method thereof |
Non-Patent Citations (3)
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| 王永敏等.不同剂型聚丙烯酰胺对冷沙黄泥土壤持水性能的影响.《农业工程学报》.2010,第26卷(第8期), * |
| 王训等.秸秆改良剂对沙质土有机质和阳离子交换量的影响.《中国农学通报》.2010,第26卷(第23期),第224-228页. * |
| 胡克伟等.膨润土再土壤质量改良中的应用研究.《辽宁农业职业技术学院学报》.2008,第10卷(第6期), * |
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