CN1346865A - Efficient improver of salinized soil - Google Patents
Efficient improver of salinized soil Download PDFInfo
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- CN1346865A CN1346865A CN 01136114 CN01136114A CN1346865A CN 1346865 A CN1346865 A CN 1346865A CN 01136114 CN01136114 CN 01136114 CN 01136114 A CN01136114 A CN 01136114A CN 1346865 A CN1346865 A CN 1346865A
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Abstract
An efficient improver for salinized soil is prepared from water-soluble high-molecular polymer, solid acid, sulfur, gypsum and organic peat, and serves to effectively reduce pH value of salinized soil and harmful salt content in said soil, improve quality and fertility of soil, and promote growth of plant in salinized soil.
Description
Technical field
The present invention relates to soil improvement agent, refer to especially a kind ofly can fast, efficiently reduce the pH value of salinized soil and be harmful to new and improved dose of salinity, this modifying agent can also improve the quality of salinized soil and can improve the fertility of soil.
Background technology
Salinized soil is because high evaporation amount or the moisture that is rich in salinity because of use are irrigated a kind of Soil degradation cause.The salinized soil feature includes: (1) pH value high (more than 7.3).(2) be rich in harmful salinity such as sodium carbonate salt etc.(3) ventilation property is poor.(4) plate is easily formed on the top layer.(5) fertility is low or the like.
According to investigation, Chinese salinization soil has reached 23.3 ten thousand square kilometres, and wherein quite a few is distributed in northwest China, economizes or autonomous region as Xinjiang, the Inner Mongol, Gansu, Qinghai, Shaanxi etc.The salinization problem has seriously limited local husbandry development and building of ecological shelter forest and has changed, and is one of at first essential ecological problem that solves in the development of the West Regions.
Known common salinized soil improvement way has at present:
(1) the ditching draining method that desalts;
(2) use sulphur or gypsum;
(3) use the organic acid mixture;
(4) use organic peat etc.
Wherein, the ditching draining method that desalts is not only time-consuming, and effect continues short (evaporation or irrigate then can accelerate salinization again), thereby needs carry out repeatedly every year.Can effectively reduce soil pH value and harmful salinity though use sulphur and gypsum, but effect is slow, need just to work after microorganism reacts in 6～8 weeks and the soil as sulphur, and gypsum poorly soluble in the high soil solution of pH value, thereby the amount that need apply big especially (every mu hundreds of kilogram to a ton), drop into high.Similarly, organic acid mixture cost height, and effect is of short duration.It is cheap certainly to use organic peat or farm manure, but these materials are at the easy decomposition of high temperature season, and the time of its effect is also very limited.
Summary of the invention
Find that now a certain proportion of high molecular weight water soluble polymer and solid acid can activate above three kinds of conventional materials role in the improvement salinized soil.Except itself can reduce pH in soil and remove harmful salt exceptionally, it can also accelerate the reaction of sulphur and soil microorganisms, the release that improves the water-soluble of gypsum and accelerate effective ingredient in organic peat.
New and improved dose of indication of the present invention is composited these differing materials exactly by a certain percentage, and when existing with solid form, chemical reaction does not take place these materials, does not produce the rotten effect of poison, thereby is convenient to use and store.After in case have an effect with water in the soil and microorganism, the not only effect of performance improvement salinized soil separately, and can interact and reinforced effects, thereby the amount of application on the unit surface can significantly reduce (1～10 kilogram/every mu), thereby can reduce pH in soil and harmful salinity quickly and efficiently, and can improve Soil structure, strengthen soil fertility.
Efficient improver of salinized soil of the present invention is characterized in that both containing salinized soil improvement conventional materials such as sulphur, gypsum, organic peat and borax, contain the high molecular weight water soluble polymer and the solid acid that can activate these materials again, the weight proportion umber of these compositions is:
10～45 parts in sulphur
5～35 parts in gypsum
10～25 parts in organic peat
0.5～5 part of borax
0.5～5 part of high molecular polymer
1.0～10 parts of solid acids.
Wherein, all there is sale in the many chemical companies of sulphur and gypsum China, and organic peat can buy from Inner Mongol Fu Long company etc.The molecular weight of high molecular weight water soluble polymer is between 500～4000, can be polyacrylamide (polyacrylamide, PAM), polyvinyl alcohol (polyvinyl alcohol, PVA), (polymaleic anhydrides PMA) or their mixture, also can buy on Chinese market poly-maleic anhydride.Solid acid is a kind of common compound, and molecular formula is NaHSO
4, molecular weight is 120, particulate state, and the pH value of 5% solution is 1.0, water content 0.2-0.5%.
The preparation method of soil improvement agent of the present invention is pressed into granular product to above material after with mechanically mixing, and its diameter can be applied directly to soil surface between the 1-10 millimeter, spray application to native face after also can mixing with irrigation water.Every mu consumption is to decide because of the salinization program of soil.To general moderate salinized soil, every mu of consumption is at the 1-10 kilogram; To extreme salinized soil (as pH value＞9.0), every mu of consumption can suitably increase, till 50 kilograms every mu.
Soil improvement agent of the present invention both can be used for the new soil of opening up wasteland, and the farmland that also can be used to be subjected to saline and alkaline infringement by fast and effeciently reducing soil pH value and harmful salinity, makes saline and alkaline influence to plant-growth be reduced to minimum program; On the other hand, some composition of modifying agent can also improve soil texture structure, increase the soil organism and content of elements, thereby can promote plant root growth, increases the output of crop.
Soil improvement agent cost of the present invention is low, easy to use, be applied in the soil and just physical and chemical reaction take place with water and microorganism, the improvement salinized soil, guarantee that plant (as crop, ecological forest land plant) can not only root in the saltings, can also make full use of the available nutrient quickening speed of growth that soil discharges, thereby have broad application prospects in northwest China.
Be described in further detail the present invention below in conjunction with embodiment.
Embodiment
In following test examples, we are according to this disclosed formulated has been described a kind of efficient improver of salinized soil, contain 38 parts in sulphur, 30 parts in gypsum, 22 parts in organic peat, 3 parts of high molecular weight water soluble polymers, 5 parts of solid acids, 2 parts of boraxs.The compound method of this modifying agent is: earlier the organic mud powdered carbon is broken to diameter and adds other compositions after 2 millimeters, abundant then mixing is again with the mechanical particle that product is pressed into diameter 5 millimeter.＜test example one 〉
A near area Tucson city, Ya Lisangna state is 1 acre Herba Astragali Melilotoidis (Herba Astragali Sinici) field, do not use the sample ground of soil improvement agent of the present invention, because high salinityization, the percentage of germination of alfalfa has only 50～60%, and every acre of soil improvement agent that uses the indication of the present invention of 10 kilograms (being 1.6 kilograms every mu), percentage of germination brings up to 90～95%.＜test example two 〉
Behind the soil improvement agent of having used 20 pounds of (being about 3.0 kilograms every mu) indications of the present invention near 0.5 acre of field the Tucson city, Ya Lisangna state, the saltiness of its soil has reduced by 46%; The pH value is reduced to 7.2 by 8.8, has improved 38% in the contrast field that last plantation wheat yield is not used soil improvement agent than periphery.＜test example three 〉
On the field of the high salinityization in the southeast, Ya Lisangna state, do not use soil improvement agent of the present invention, do not plant the asparagus crop all the time, use soil improvement agent of the present invention (2.0 kilograms every mu), asparagus well-grown after 10 days.
In a word, this novel efficient improver of salinized soil disclosed by the invention can fast and effeciently reduce soil pH value and harmful salinity, can also improve the soil texture and fertility, makes the saltings that is not suitable for plant growth originally can plant plant, and can promote plant growth, improve crop yield.The small area demonstration test shows, efficient improver of salinized soil is because of having multiple interactional effective ingredient, can influence the validity of soil salt with stronger ion exchanging function, improve soil water retention and hold fertile ability, reduce pH value and effective salinity significantly, thereby promoted the growths on the salinization soil such as various crop such as wheat, alfalfa, asparagus, and can effectively improve crop yield.Therefore, salinized soil modifying agent disclosed by the invention has broad application prospects in northwest China.
Claims (5)
1, a kind of efficient improver of salinized soil, it is characterized in that modifying agent had both contained salinized soil improvement conventional materials such as sulphur, gypsum, organic peat and borax, contain the high molecular weight water soluble polymer and the solid acid that can activate these materials again, the weight proportion umber of these compositions is:
10～45 parts in sulphur
5～35 parts in gypsum
10～25 parts in organic peat
0.5～5 part of borax
0.5～5 part of high molecular polymer
1.0～10 parts of solid acids.
2, according to the said efficient improver of salinized soil of claim 1, the molecular weight that it is characterized in that said high molecular weight water soluble polymer is between 500～4000, can be polyacrylamide (polyacrylamide, PAM), polyvinyl alcohol (polyvinyl alcohol, PVA), and poly-maleic anhydride (polymaleic anhydrides, PMA) or their mixture.
3, according to the said efficient improver of salinized soil of claim 1, the molecular formula that it is characterized in that said solid acid is NaHSO
4, molecular weight is 120, particulate state, and the pH value of 5% solution is 1.0, water content 0.2-0.5%.
4, according to the said efficient improver of salinized soil of claim 1, it is characterized in that said modifying agent is band coloured particles shape, the particulate diameter can be applied directly over soil surface between the 1-10 millimeter, also can with spray application to soil surface again after irrigation water mixes.
5,, it is characterized in that every mu of consumption of modifying agent is between the 1-50 kilogram according to the said efficient improver of salinized soil of claim 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB01136114XA CN1177910C (en) | 2001-10-08 | 2001-10-08 | Efficient improver of salinized soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB01136114XA CN1177910C (en) | 2001-10-08 | 2001-10-08 | Efficient improver of salinized soil |
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| Publication Number | Publication Date |
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| CN1346865A true CN1346865A (en) | 2002-05-01 |
| CN1177910C CN1177910C (en) | 2004-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB01136114XA Expired - Fee Related CN1177910C (en) | 2001-10-08 | 2001-10-08 | Efficient improver of salinized soil |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104073259A (en) * | 2014-06-22 | 2014-10-01 | 新疆林科院造林治沙研究所 | Soil conditioner, preparation method thereof and method for conditioning salinized soil on afforestation lands |
| CN104449756A (en) * | 2014-11-18 | 2015-03-25 | 北京市农林科学院 | Water-soluble soil salinization improver and preparation method and application of improver |
| CN106495615A (en) * | 2016-11-03 | 2017-03-15 | 天津城建大学 | A kind of method of the cured modified salinized soil of acrylamide in-situ polymerization |
| CN106517878A (en) * | 2016-11-03 | 2017-03-22 | 天津城建大学 | Method for improving salinized soil through acrylamide modified polyvinylalcohol and maize straw jointly |
| CN106701092A (en) * | 2015-11-23 | 2017-05-24 | 辛衷瑜 | Soil conditioner, and preparation method and application thereof |
| CN108251124A (en) * | 2018-03-14 | 2018-07-06 | 天津立昌科技有限公司 | The modification method of alkaline land modifying agent and alkaline land soil |
| CN109929561A (en) * | 2019-04-26 | 2019-06-25 | 珠海三豫环保新材料科技有限公司 | A kind of formula and preparation method thereof preparing alkaline soil improver using gangue |
| CN111363558A (en) * | 2020-04-11 | 2020-07-03 | 内蒙古中恒蒙福苑建材有限责任公司 | Saline-alkali soil improver |
-
2001
- 2001-10-08 CN CNB01136114XA patent/CN1177910C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104073259A (en) * | 2014-06-22 | 2014-10-01 | 新疆林科院造林治沙研究所 | Soil conditioner, preparation method thereof and method for conditioning salinized soil on afforestation lands |
| CN104073259B (en) * | 2014-06-22 | 2018-05-25 | 新疆林科院造林治沙研究所 | Soil conditioner and preparation method thereof and reproducing area salinized soil modification method |
| CN104449756A (en) * | 2014-11-18 | 2015-03-25 | 北京市农林科学院 | Water-soluble soil salinization improver and preparation method and application of improver |
| CN104449756B (en) * | 2014-11-18 | 2017-10-27 | 北京市农林科学院 | A kind of water miscible salinization of soil modifying agent and preparation method and application |
| CN106701092A (en) * | 2015-11-23 | 2017-05-24 | 辛衷瑜 | Soil conditioner, and preparation method and application thereof |
| CN106495615A (en) * | 2016-11-03 | 2017-03-15 | 天津城建大学 | A kind of method of the cured modified salinized soil of acrylamide in-situ polymerization |
| CN106517878A (en) * | 2016-11-03 | 2017-03-22 | 天津城建大学 | Method for improving salinized soil through acrylamide modified polyvinylalcohol and maize straw jointly |
| CN108251124A (en) * | 2018-03-14 | 2018-07-06 | 天津立昌科技有限公司 | The modification method of alkaline land modifying agent and alkaline land soil |
| CN109929561A (en) * | 2019-04-26 | 2019-06-25 | 珠海三豫环保新材料科技有限公司 | A kind of formula and preparation method thereof preparing alkaline soil improver using gangue |
| CN111363558A (en) * | 2020-04-11 | 2020-07-03 | 内蒙古中恒蒙福苑建材有限责任公司 | Saline-alkali soil improver |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1177910C (en) | 2004-12-01 |
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