CN102002370B - Organic polymer colloid for sandified land and sandified land improving method - Google Patents
Organic polymer colloid for sandified land and sandified land improving method Download PDFInfo
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Abstract
The invention relates to an organic polymer colloid prepared from high molecular polymers having a linear molecular structure and a sandified land improving method, which are used for improving a sandified land so as to plant crops. The organic polymer colloid for a sandified land is prepared from the following raw materials in every 1000 kg of water: 0.3-0.6 kg of potassium polyacrylate having alinear molecular structure or 0.2-0.4 kg of polyacrylamide, and 0.1-0.3 kg of zinc sulfate or potassium sulfate or 0.8-2.5 kg of calcium sulfate. The preparation method comprises the following steps:adding zinc sulfate or calcium sulfate or potassium sulfate into water; slowing adding potassium polyacrylate or polyacrylamide while stirring after the zinc sulfate or the calcium sulfate or the potassium sulfate is thoroughly dissolved in the water; and intermittently stirring for 30 minutes to obtain the organic polymer colloid containing a large amount of microgel particles. The sandified land improving method comprises the following steps: turning over the soil in the sand bed for 15-20 cm with a walking plough, and using a water pump to uniformly spread the organic polymer colloid into the sand soil which is turned over, wherein the ratio of the colloid to the area of the land is 28-33 tons/667 m<2>, and the ploughing spacing is 8-12 cm. The invention can improve the soil granular structure and the water retention property of the sandified land.
Description
Technical field
The invention belongs to farming, forestry conservation technology field, relate to the way that sandy land is administered, particularly a kind of method of using the organic polymer colloid of linearity molecular structure polymer preparation and improving the ground that desertifies.Be mainly used in sandy land water-accumulating, soil improvement and then be engaged in proportion of crop planting.
Background technology
As everyone knows, because the ground arable layer of desertifying is low to moisture and nitrogen adsorptive capacity, so be difficult to survival the farm crop of the plantation on the ground of desertifying.To the improvement of sand ground soil and utilization rationally, be the important research content of regional environment regulation and agricultural development always.Studies show that before to the improvement of sand, is based on a large amount of organic substance inputs, improve the structure properties and the water retention property of soil by the increase of organic substance, promote the formation of crumb structure, reach and improve soil physical property, improve the purpose of weather-proof ability; By organic increase, improve soil and protect the ability of storing up branch simultaneously, to improve Land capability.
Diversified way has been taked in countries in the world in the improvement work on the ground that desertifies, but does not have a sand control technology can solve the root problem of sand control so far.Administer the to desertify original intention and the purpose on ground are that the plant in the ground plantation of desertifying is survived, and the real key of sand control is to keep moisture and the essential nutrient of plant in the sandy soil, make the plant growth of being survived.
In recent years, the peasant in territory, arid area is in order to improve planting benefit, and the major measure of taking has: lining form is built up fields, is gone sand to build up fields and mixes engineering methods such as Sha Xiutian.
It is the face of land sand bed that cuts out 80～100cm in the thicker sand ground of sand bed that lining form is built up fields, and carries out backfill behind the lining plastics film, in the hope of reaching the purpose of oozing under the retardance moisture.When this kind technological method oozes under retardance moisture, water, gas exchange between soil layer have also been cut off, just the sand bed obnoxious flavour having occurred in than short several years increases, major injury the farm crop root systems, influenced the normal growth of crop, planting benefit falls after rise, and therefore this method has stopped applying.
Going sand to build up fields is in the plot of sand bed thinner thickness, adopts engineering method to remove the above sand bed of clay seam, plants at clayed ground then.Barren because of the clay seam that exposes, general fertilizer application amount is bigger, and the clay unit weight of this area is higher, soil stickiness is stronger, and the surface layer clay is easy to produce and hardens.Therefore arising at the historic moment, occurred the third method mixes Sha Xiutian.
Mixing Sha Xiutian is in autumn and winter season, and husky the processing mixed on the surface, plot of having hardened after going sand to build up fields, and apparent, this method labour intensity is big, time-consuming takes a lot of work, and is difficult to promote.
At present, after still unmatchful desertification ground is handled, can reach then or near the sandy land improvement method of the better plot of soil property planting effect.
Summary of the invention
To moisture and the low problem of nitrogen adsorptive capacity, the purpose of this invention is to provide a kind of sandy land organic polymer colloid at its arable layer of ground of desertifying; Another object of the present invention provides a kind of method of improving sandy land.
A kind of sandy land organic polymer colloid provided by the invention extensively is dispersed with microgel particle in its liquid, can solve the simple water-sol in sand bed with the problem of moving under water; Amount of application is little, can make the farm crop normal growth;
The method of improving sandy land provided by the invention can effectively improve the ability of Soil conservation nitrogen and moisture; Little, the time and labour saving of labour intensity helps applying.
The present invention seeks to be achieved through the following technical solutions.
A kind of sandy land organic polymer colloid; It is characterized in that preparation has following raw material in every 1000kg water: the Polyacrylamide 0.2～0.5kg of the linearity molecular structure of the polyacrylic acid potassium 0.3～0.6kg of the linearity molecular structure of viscosity-average molecular weight about 1,500 ten thousand or viscosity-average molecular weight about 2,000 ten thousand, technical pure zinc sulfate 0.1～0.3kg or technical pure vitriolate of tartar 0.1～0.3kg or calcium sulfate 0.5～1.5kg.
Its preparation method is: the calcium sulfate that adds 0.1～0.3kg zinc sulfate or 0.1～0.3kg vitriolate of tartar or 0.5～1.5kg in 1000kg water; Water-soluble back of zinc sulfate or vitriolate of tartar or calcium sulfate reach full close state after, under agitation condition, slowly add polyacrylic acid potassium 0.3～0.6kg; Intermittent type stirred after 30 minutes, must contain the organic polymer colloid of a large amount of microgel particles.
Its preparation method or: the calcium sulfate that in 1000kg water, adds 0.1～0.3kg zinc sulfate or 0.1～0.3kg vitriolate of tartar or 0.5～1.5kg; Water-soluble back of zinc sulfate or vitriolate of tartar or calcium sulfate reach full close state after, under agitation condition, slowly add Polyacrylamide 0.2～0.5kg; Intermittent type stirred after 30 minutes, must contain the Polyacrylamide organic polymer colloid of a large amount of microgel particles.
Polyacrylic acid potassium organic polymer colloid of the present invention is polyacrylic acid potassium and zinc sulfate and water preparation, or polyacrylic acid potassium and calcium sulfate and water preparation, or polyacrylic acid potassium and vitriolate of tartar and water preparation; Polyacrylamide organic polymer colloid of the present invention is Polyacrylamide and zinc sulfate and water preparation, or Polyacrylamide and calcium sulfate and water preparation, or Polyacrylamide and vitriolate of tartar and water preparation.
Calcium sulfate reach full close state after, be meant that calcium sulfate reaches maximum meltage.Because 1000kg water can not all dissolve 1.5kg calcium sulfate, for barren desertification ground, the required various elements of plant-growth lack mostly, reaching the full remaining calcium sulfate of state that closes, and still add, and as fertilizer sources uses.
The present invention uses zinc sulfate solution or the calcium sulfate aqueous solution or potassium sulfate solution, is the dispersion medium as linearity molecular structure high molecular polymer-polyacrylic acid potassium/polypropylene alkene acyl.Because the change of dispersion medium character, crosslinking reaction will take place in the high molecular polymer of linearity molecular structure, the dissolved adhesiveness reduction after it is disperseed, and contain a large amount of small-particle gels.
Polyacrylic acid potassium organic polymer colloid of the present invention compares with the simple water-sol of polyacrylic acid potassium that uses, and its viscosity obviously reduces; Two kinds of organic polymer colloids of the present invention all are molten gelationus organic polymer colloids, and extensively are dispersed with a large amount of microgel particles in the colloidal sol body; Can be by conventional water pump pressurization with organic polymer colloid ejection of the present invention.
Colloidal organic polymer colloid provided by the invention for guaranteed performance is stable, should use in 5 days.
Two kinds of the methods of improving sandy land provided by the invention.
First method:
A kind of method of improving sandy land, it is characterized in that polyacrylic acid potassium organic polymer colloid or Polyacrylamide organic polymer colloid homodisperse are imposed in 0～20cm depth range, the ratio of polyacrylic acid potassium organic polymer colloid or Polyacrylamide organic polymer colloid and land area is: 28～33 tons/667m
2Working method is: adopt walking plough that the sand bed of 15～20cm is opened, the pump entrance end is connected to the machine polymer colloid through feed-pipe, pump outlet connects discharge nozzle, open water pump, hand-held discharge nozzle evenly is sprayed on polyacrylic acid potassium organic polymer colloid or Polyacrylamide organic polymer colloid among the sandy soil that open, and colloidal organic polymer colloid is well-dispersed in the sandy soil that open; To repeating said process with the rollover plough, plowing is spaced apart 8～12cm.
Second method:
A kind of method of improving sandy land is characterized in that: by every 667m
2Irrigated area is used the polyacrylic acid potassium 12～15kg or the Polyacrylamide 6～8kg of linearity molecular structure, and the consumption of zinc sulfate 8～15kg or vitriolate of tartar 8～15kg or calcium sulfate 32～45kg is got the raw materials ready; Come discharge according to irrigating with lateral canal, by every 667m
2Ground duty 190～230m desertifies
3The required time,, slowly evenly add calcium sulfate or zinc sulfate or vitriolate of tartar apart from handling 48 to 53m places, plot; At distance calcium sulfate or a zinc sulfate or vitriolate of tartar adding point 28 to 33m places, slowly evenly add linearity molecular structure polyacrylic acid potassium or Polyacrylamide again; Utilize the higher lateral canal water of flow velocity that polyacrylic acid potassium or Polyacrylamide are disperseed and finish absorption to moisture, irrigation water enters with the solation that contains a large amount of small-particle gels and handles the plot; When the surface irrigation water of handling the plot finish down ooze after, plough is turned on the face of land that is formed with glue-line, after glue-line is cracked evenly in the distribution arable layer.
The polyacrylic acid potassium viscosity-average molecular weight of described linearity molecular structure is about 1,500 ten thousand; The Polyacrylamide viscosity-average molecular weight of described linearity molecular structure is about 2,000 ten thousand.
Two kinds of employed zinc sulfate of method that improve sandy land provided by the invention are technical pure zinc sulfate, and vitriolate of tartar is the technical pure vitriolate of tartar.
The desertify method on ground of improvement provided by the present invention,, obviously improves the ability of holding of hydrolyzable nitrogen and moisture after formed colloid evenly applies the ground arable layer of desertifying as linearity molecular structure high molecular polymer dispersion medium with sulfur acid calcium or zinc sulfate liquid.Improve its purpose by increasing the ground arable layer organic colloid content that desertifies, reaching to nitrogen and water adsorption ability.With the desertification do not handled ground relatively, the hydrolyzable nitrogen content in the processing layer has improved about 80%, absolute water content has improved about 13%.
Two kinds of methods of the present invention, be the desertification of sand bed thickness 40 to 80cm finish experiment, also be applicable to the desertification ground that sand bed thickness is more shallow simultaneously.
The method on improvement desertification provided by the present invention ground can obviously be improved the water retention property of the soil aggregate of sand ground, and can increase the ability of the hydrolyzable nitrogen of sand bed, and then improve crop yield.
Method of the present invention, owing to only the arable layer on the ground that desertifies is handled, amount of application is less; Compare with existing desertification ground modification method, the amount of labour used obviously reduces.Plantation proves through the experimental plot, and then, the oily certain herbaceous plants with big flowers output of being planted reached more than the 150kg after sand bed thickness was handled above the desertification ground of 60cm, and potato yield reaches about 2000kg, near silty loam quality piece output, has good society and economic benefit.
Embodiment
Product embodiments 1
A kind of sandy land organic polymer colloid; In the 100t water there be preparation: the polyacrylic acid potassium 30kg of linearity molecular structure, zinc sulfate 20kg.Its preparation method is: add earlier zinc sulfate in water; After treating that zinc sulfate is water-soluble, under agitation condition, slowly add the polyacrylic acid potassium of the linearity molecular structure of viscosity-average molecular weight about 1,500 ten thousand; Every stirring 2～3 minutes stops 1～2 minute, and intermittent type stirred after 30 minutes, and the polyacrylic acid potassium homodisperse must contain the polyacrylic acid potassium organic polymer colloid of a large amount of microgel particles.
Product embodiments 2
A kind of sandy land organic polymer colloid; In the 1000kg water there be preparation: the polyacrylic acid potassium 0.6kg of linearity molecular structure, zinc sulfate 0.3kg.Its preparation method must contain the polyacrylic acid potassium organic polymer colloid of a large amount of microgel particles with embodiment 1.
Product embodiments 3
A kind of sandy land organic polymer colloid; In the 1000kg water there be preparation: the polyacrylic acid potassium 0.45kg of linearity molecular structure, calcium sulfate 1.5kg.Its preparation method is: add 1.5kg calcium sulfate in 1000kg water; After treating that calcium sulfate reaches maximum meltage, promptly in the aqueous solution of calcium sulfate undissolved calcium sulfate is arranged, under agitation condition, slowly add the polyacrylic acid potassium 0.45kg of the linearity molecular structure of viscosity-average molecular weight about 1,500 ten thousand; Every stirring 2～3 minutes stops 1～2 minute, and intermittent type stirred after 30 minutes, and the polyacrylic acid potassium homodisperse must contain the polyacrylic acid potassium organic polymer colloid of a large amount of microgel particles.Undissolved calcium sulfate replenishes nutrient with the form of fertilizer to sand ground.
Product embodiments 4
A kind of sandy land organic polymer colloid; In the 1000kg water there be preparation: the polyacrylic acid potassium 0.5kg of linearity molecular structure, calcium sulfate 1kg, its preparation method must contain the polyacrylic acid potassium organic polymer colloid of a large amount of microgel particles with embodiment 3.
Product embodiments 5
A kind of sandy land organic polymer colloid; In the 1000kg water there be preparation: Polyacrylamide 0.5kg, zinc sulfate 0.3kg; Its preparation method is: add 0.3kg zinc sulfate in 1000kg water; After zinc sulfate is water-soluble, slowly add the Polyacrylamide 0.5kg of the linearity molecular structure of viscosity-average molecular weight about 2,000 ten thousand under agitation condition, every stirring 2～3 minutes stops 1～2 minute, and intermittent type stirred after 30 minutes, the Polyacrylamide homodisperse; The Polyacrylamide organic polymer colloid that must contain a large amount of microgel particles.
Product embodiments 6
A kind of sandy land organic polymer colloid; In the 1000kg water there be preparation: Polyacrylamide 0.3kg, zinc sulfate 0.2kg; Its preparation method must contain the Polyacrylamide organic polymer colloid of a large amount of microgel particles with embodiment 5.
Product embodiments 7
A kind of sandy land organic polymer colloid; In the 100t water there be preparation: Polyacrylamide 40kg, calcium sulfate 80kg; Its preparation method: in 100t water, add calcium sulfate, slowly add the Polyacrylamide of the linearity molecular structure of viscosity-average molecular weight about 2,000 ten thousand under agitation condition, every stirring 2～3 minutes stops 1～2 minute, intermittent type stirred after 30 minutes, the Polyacrylamide homodisperse; The Polyacrylamide organic polymer colloid that must contain a large amount of microgel particles.
Product embodiments 8
A kind of sandy land organic polymer colloid; Preparing in every 1000kg water has: Polyacrylamide 0.3kg, calcium sulfate 0.5kg; The preparation method must contain the Polyacrylamide organic polymer colloid of a large amount of microgel particles with embodiment 7.
Product embodiments 9
A kind of sandy land organic polymer colloid; Preparing in every 1000kg water has: the polyacrylic acid potassium 0.5kg of linearity molecular structure, vitriolate of tartar 0.3kg.Its preparation method is: add the 0.3kg vitriolate of tartar in 1000kg water; After treating that vitriolate of tartar is water-soluble, under agitation condition, slowly add the polyacrylic acid potassium 0.5kg of the linearity molecular structure of viscosity-average molecular weight about 1,500 ten thousand; Every stirring 2～3 minutes stops 1～2 minute, and intermittent type stirred after 30 minutes, and the polyacrylic acid potassium homodisperse must contain the polyacrylic acid potassium organic polymer colloid of a large amount of microgel particles.
Product embodiments 10
A kind of sandy land organic polymer colloid; Preparing in every 1000kg water has: the Polyacrylamide 0.3kg of linearity molecular structure, vitriolate of tartar 0.2kg.Its preparation method is: add the 0.3kg vitriolate of tartar in 1000kg water; After treating that vitriolate of tartar is water-soluble, under agitation condition, slowly add the Polyacrylamide 0.3kg of the linearity molecular structure of viscosity-average molecular weight about 1,500 ten thousand; Every stirring 2～3 minutes stops 1～2 minute, and intermittent type stirred after 30 minutes, and the polyacrylic acid potassium homodisperse must contain the polyacrylic acid potassium organic polymer colloid of a large amount of microgel particles.
Method embodiment 1
A kind of method of improving sandy land imposes on embodiment 1 gained polyacrylic acid potassium organic polymer colloid homodisperse in 0～20cm depth range, and the ratio of polyacrylic acid potassium organic polymer colloid and land area is: 30 tons/667m
2Working method is: on the surface, plot of sand bed thickness 40cm～80cm, adopt walking plough that the sand bed of 15～20cm is opened, the pump entrance end is connected to the machine polymer colloid through feed-pipe, pump outlet connects discharge nozzle, open water pump, hand-held discharge nozzle evenly is sprayed on polyacrylic acid potassium organic polymer colloid among the sandy soil that open, and colloidal organic polymer colloid is well-dispersed in the sandy soil that open; To repeating said process with rollover plough, spray while plowing, each plough be spaced apart 8～10cm.
Method embodiment 2
A kind of method of improving sandy land imposes on embodiment 7 gained Polyacrylamide organic polymer colloid homodisperse in 0～20cm depth range, and the ratio of Polyacrylamide organic polymer colloid and land area is: 28 tons/667m
2Working method is: on the surface, plot of sand bed thickness 40cm～60cm, adopt walking plough that the sand bed of 15～20cm is opened, the pump entrance end is connected to the machine polymer colloid through feed-pipe, pump outlet connects discharge nozzle, open water pump, hand-held discharge nozzle evenly is sprayed on Polyacrylamide organic polymer colloid among the sandy soil that open, and colloidal organic polymer colloid is well-dispersed in the sandy soil that open; To repeating said process with rollover plough, spray while plowing, each plough be spaced apart 10～12cm.
Method embodiment 3
A kind of method of improving sandy land is come discharge according to irrigating with lateral canal, by every 667m
2Irrigated area is used the polyacrylic acid potassium 15kg of linearity molecular structure, and the consumption of zinc sulfate 10kg is got the raw materials ready; Every 667m
2Ground duty 200m desertifies
3The required time is 40 minutes, handles 48m place, plot in distance, slowly evenly zinc sulfate is added lateral canal in 40 minutes; Add some 30m place at distance zinc sulfate again, slowly even adding molecular weight is about 1,500 ten thousand linearity molecular structure polyacrylic acid potassium in 40 minutes; Utilize the higher lateral canal water of flow velocity that polyacrylic acid potassium is disperseed and finish absorption to moisture, irrigation water enters with colloidal form and handles the plot; When the surface irrigation water of handling the plot finish down ooze after, plough is turned on the face of land that is formed with glue-line, after glue-line is cracked evenly in being distributed in arable layer.
Method embodiment 4
A kind of method of improving sandy land is come discharge according to irrigating with lateral canal, by every 667m
2Irrigated area is used the Polyacrylamide 7kg of about 2,000 ten thousand linearity molecular structure of linearity molecular structure, and the consumption of calcium sulfate 40kg is got the raw materials ready; Every 667m
2Ground duty 200m desertifies
3Need 35 minutes,, in 35 minutes, slowly equably calcium sulfate is added lateral canal apart from handling 50m place, plot; Add some 33m place at distance calcium sulfate or zinc sulfate again, slowly evenly Polyacrylamide is added lateral canal; Irrigation water enters with colloidal form and handles the plot; When the surface irrigation water of handling the plot finish down ooze after, plough is turned on the face of land that is formed with glue-line, after glue-line is cracked evenly in being distributed in arable layer.
Product and method in conjunction with the embodiments 1
At 70m
3In the pond, in the water filling of pond, add 100kg calcium sulfate, and under agitation condition, slowly adding the polyacrylic acid potassium 25kg of linearity molecular structure molecular weight about 1,500 ten thousand, through intermittently stirring 30 minutes, standby behind the formation colloid.
On the surface, plot of sand bed thickness 40 to 80cm, by every 667m
2Evenly raise the vitriolate of tartar 40kg of piss plain 20kg, diammonium phosphate 20kg and 20% content; Then use walking plough with 15～20cm degree of depth,, colloid extraction in the pond is sprayed on the sandy soil of the plough that turns over conventional water pump to a rollover plough, and in the sandy soil that colloid are well dispersed in rout up; With the distance of interval 9～11cm, to homonymy continue turn over plough and spray colloid, until the processing of finishing this plot thereafter.Every processing 667m
2It is 30m that the plot needs the colloid amount
3
General planting method plantation potato is adopted in plot after processing.Kind of method for planting: not ridging, overlay film not, the potato seed density in planting is 4500 strains/667m
2About, be 120～150 days breeding time, its output reaches 2000kg/667m
2
Product and method in conjunction with the embodiments 2
Come discharge according to lateral canal, by every 667m
2Ground duty 200m desertifies
3Required time is handled in the lateral canal at 50m place, plot in distance, slowly evenly adds zinc sulfate 12kg, handles in the lateral canal at 30m place, plot every processing 667m in distance
2The ground that desertifies slowly adds the polyacrylic acid potassium 15kg of the molecular weight about 1,500 ten thousand of linearity molecular structure, irrigation water is entered with solation handle the plot.When face of land liquid finish down ooze after, every 667m
2Piss plain 20kg, diammonium phosphate 20kg are evenly raised in the plot, and the vitriolate of tartar 40kg of 20% content then turns over plough, make the organic colloid of different molecular weight and institute form dispersion more uniformly to fertilize in arable layer.Plot after processing adopts the general planting method to plant oily certain herbaceous plants with big flowers.Kind of method for planting: not ridging, overlay film not, the planting density of oily certain herbaceous plants with big flowers is 5000 strains/667m
2About, be 100～120 days breeding time, its output reaches about 150kg/667m
2
Product and method in conjunction with the embodiments 3
Come discharge according to lateral canal, by every 667m
2Ground duty 200m desertifies
3Required time is handled in the lateral canal at 50m place, plot in distance, slowly adds vitriolate of tartar 15kg, handles in the lateral canal at 30m place, plot every processing 667m in distance
2The ground that desertifies slowly adds the polyacrylic acid potassium 12kg of the molecular weight about 1,500 ten thousand of linearity molecular structure, irrigation water is entered with solation handle the plot.When face of land liquid finish down ooze after, every 667m
2Piss plain 20kg, diammonium phosphate 20kg are evenly raised in the plot, then turn over plough, make the organic colloid of different molecular weight and institute form dispersion more uniformly to fertilize in arable layer.
Plot after processing adopts the general planting method to plant oily certain herbaceous plants with big flowers.Kind of method for planting: not ridging, overlay film not, the planting density of oily certain herbaceous plants with big flowers is 5000 strains/667m
2About, be 100～120 days breeding time, its output reaches 150kg/667m
2
Claims (2)
1. method of improving sandy land, it is characterized in that polyacrylic acid potassium organic polymer colloid or polyacrylamide organic polymer colloid homodisperse are imposed among the sand bed in 0～20cm depth range, the ratio of polyacrylic acid potassium organic polymer colloid or polyacrylamide organic polymer colloid and land area is: 28～33 tons/667m
2Working method is: adopt walking plough that the sand bed of 15～20cm is opened, the pump entrance end is connected to the machine polymer colloid through feed-pipe, pump outlet connects discharge nozzle, open water pump, hand-held discharge nozzle evenly is sprayed on polyacrylic acid potassium organic polymer colloid or polyacrylamide organic polymer colloid among the sandy soil that open, and colloidal organic polymer colloid is well-dispersed in the sandy soil that open; To repeating said process with the rollover plough, plowing is spaced apart 8～12cm;
Described polyacrylic acid potassium organic polymer colloid is the calcium sulfate that adds 0.1～0.3kg technical pure zinc sulfate or 0.1～0.3kg technical pure vitriolate of tartar or 0.5～1.5kg in 1000kg water; Water-soluble back of technical pure zinc sulfate or technical pure vitriolate of tartar or calcium sulfate reach full close state after, under agitation condition, slowly add the polyacrylic acid potassium 0.3～0.6kg of viscosity-average molecular weight 1,500 ten thousand; Intermittent type stirred after 30 minutes, the organic polymer colloid that contains a large amount of microgel particles that obtains;
Described polyacrylamide organic polymer colloid is the calcium sulfate that adds 0.1～0.3kg technical pure zinc sulfate or 0.1～0.3kg technical pure vitriolate of tartar or 0.5～1.5kg in 1000kg water; Water-soluble back of technical pure zinc sulfate or technical pure vitriolate of tartar or calcium sulfate reach full close state after, under agitation condition, slowly add the polyacrylamide 0.2～0.5kg of the linearity molecular structure of viscosity-average molecular weight 2,000 ten thousand; Intermittent type stirred after 30 minutes, the polyacrylamide organic polymer colloid that contains a large amount of microgel particles that obtains.
2. a method of improving sandy land is characterized in that by every 667m
2Polyacrylamide 8～the 12kg of the polyacrylic acid potassium 12～15kg of the viscosity-average molecular weight 1,500 ten thousand of irrigated area use linearity molecular structure or the viscosity-average molecular weight 2,000 ten thousand of linearity molecular structure, the consumption of technical pure zinc sulfate 8～15kg or calcium sulfate 32～45kg or technical pure vitriolate of tartar 8～15kg is got the raw materials ready; Come discharge according to irrigating with lateral canal, by every 667m
2Ground duty 190～230m desertifies
3The required time,, slowly evenly add calcium sulfate or zinc sulfate or vitriolate of tartar apart from handling 48 to 53m places, plot; At distance calcium sulfate or a zinc sulfate or vitriolate of tartar adding point 28 to 33m places, slowly evenly add linearity molecular structure polyacrylic acid potassium or polyacrylamide again; Utilize the higher lateral canal water of flow velocity that polyacrylic acid potassium or polyacrylamide are disperseed and finish absorption to liquid, irrigation water enters with solation and handles the plot; When the surface irrigation water of handling the plot finish down ooze after, plough is turned on the face of land that is formed with glue-line, be evenly distributed on arable layer after glue-line is cracked.
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| CN103361070A (en) * | 2012-04-01 | 2013-10-23 | 沈炜敏 | MB type soil curing agent capable of rapidly governing sand dust in large area with low cost |
| CN103348897B (en) * | 2013-06-06 | 2016-06-29 | 易志坚 | Utilize the method that modified husky physical culture tree administers Gobi desert |
| CN103348833B (en) * | 2013-06-06 | 2016-03-23 | 易志坚 | The husky body of plant type modification is utilized to administer the method in Gobi desert |
| CN103355028B (en) * | 2013-06-06 | 2016-04-13 | 易志坚 | Utilize the method for the husky body Desert Control of plant type modification |
| CN103348798B (en) * | 2013-06-06 | 2015-07-01 | 易志坚 | Sand control method using modified sand soil for tree planting |
| CN103650692B (en) * | 2013-11-29 | 2016-03-23 | 泉州师范学院 | A kind of sandy land amelioration method in applicable height wind erosion, water erosion area |
| CN104892310A (en) * | 2015-05-21 | 2015-09-09 | 甘肃省农业科学院旱地农业研究所 | Desertificated land modifier and application thereof |
| CN108003890A (en) * | 2017-12-11 | 2018-05-08 | 中国环境科学研究院 | It is a kind of beneficial to sandy soil conditioner of plant growth and its preparation method and application |
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| 《高分子材料在旱地作物生产中的应用基础研究》;宋宝兴;《中国博士学位论文全文数据库农业科技辑》;20080315(第3期);D043-2 * |
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