CN1297632C - Alkaline soil improver - Google Patents
Alkaline soil improver Download PDFInfo
- Publication number
- CN1297632C CN1297632C CNB2005100123661A CN200510012366A CN1297632C CN 1297632 C CN1297632 C CN 1297632C CN B2005100123661 A CNB2005100123661 A CN B2005100123661A CN 200510012366 A CN200510012366 A CN 200510012366A CN 1297632 C CN1297632 C CN 1297632C
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- China
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- gypsum
- soil
- phosphogypsum
- present
- alkaline
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Abstract
The present invention provides a new formula of an alkaline soil improver. The present invention is used for enhancing the efficiency of gypsum or phosphogypsum improved alkaline soil, and the soil improver using gypsum or phosphogypsum as main components is applied to a base and drought region. The alkaline soil improver comprises by weight portion: 1 of gypsum, 0.5 to 1.5 of straw and 0.01 to 0.08 of urea. The present invention has the important contribution for combining chemical improvement and physical improvement by the agricultural crop straw mixed gypsum or the mixed fertilizer industrial waste phosphogypsum. Soil hardening is improved fundamentally, and a soil improvement effect is obviously better than a simple chemical improvement effect under the condition of no leaching. In the present invention, a field crop of irrigation water drainage can be cultivated, and the present invention can be applied to tree planting and afforestation without artificial irrigation. The present invention can enhance the efficiency of the gypsum or the phosphogypsum improved soil and can extend the use of the gypsum or the phosphogypsum to a water shortage saline and alkaline region.
Description
Technical field
The present invention relates to a kind of alkaline soil improver and application method, be particularly useful for and area that lack of water is saline and alkaline again, belong to the soil improvement technical field.
Background technology
Tradition salt affected soil modification method core mechanism all is the exchangeable sodium that utilizes in calcium sulfate (gypsum) the displacement soil, belongs to more simple chemical amendments.As CN1377936A disclosed " utilize waste gypsum plate produce the method and products thereof of saline-alkali soil conditioner and use " and CN1487052A " saline soil ", because the exchangeable sodium in the calcium sulfate displacement soil needs drip washing to go out topsoil, the soil salt that calcium sulfate uses the back to increase also needs drip washing, so the needs of modifying agent cooperate the use of pouring water; Also having proposed modifying agent among the CN1487052A must use in conjunction with irrigation and drainage.Because it is that soil relatively hardens usually that alkaline soil influences another major cause of plant growth, and simple chemical amendments not only can not improve and hardens, and more irrigation and drainage, cause the soil weight to increase sharply easily along with the increase of frequency of irrigation, cause soil to harden more.
Summary of the invention
The object of the invention is to provide a kind of alkaline soil improver newly to fill a prescription, and to improve the efficient of gypsum or phosphogypsum improvement alkaline soil, also this soil improvement agent can be applied to not only alkali but also non-irrigated area.
Technical scheme of the present invention is achieved in that this alkaline soil improver, and its composition comprises following weight part: gypsum 1, stalk 0.5-1.5, urea 0.01-0.08.
Gypsum described in the described alkaline soil improver comprises phosphogypsum CaSO42H2O.
When described alkaline soil improver was used to plant field crop, its composition was following weight part: gypsum 1, stalk 0.5, urea 0.01-0.05.
When described alkaline soil improver was used to plant field crop, its composition was following weight part: phosphogypsum 1, stalk 0.65, urea 0.01-0.07.
When described alkaline soil improver was used to plant trees, its composition was the gypsum 1 of following weight part, stalk 1, urea 0.01-0.02.
When described alkaline soil improver was used to plant trees, its composition was following weight part: phosphogypsum 1, stalk 1.3, urea 0.01-0.03.
Crushed stalk length described in the described alkaline soil improver more than 80% less than 0.5mm.
A significant contribution of the present invention is to utilize agricultural crops straw mixed gypsum or mixed fertilizer industrial waste phosphogypsum chemical modifying and physically improved combining.The present invention of experimental result proof can not only fundamentally improve soil compaction, and the effect of soil improvement under the condition of not carrying out drip washing significantly is better than simple chemical modifying.Use the present invention in the pH value in up to 9 alkaline soil, can guarantee that the surviving rate of medium alkali proof willow reaches more than 90%, and only use in the processing 1 year of gypsum surviving rate less than 5%.The present invention not only can carry out the field crop cultivating of irrigation and drainage, also can be applicable to not carry out the afforestation of man-made irrigation.The present invention not only may improve the efficient that gypsum or phosphogypsum are improved the soil, and can also expand to the saline and alkaline again area of lack of water to the use of gypsum or phosphogypsum.
Embodiment
Embodiment 1, field crop plantation alkaline soil improver
Prescription: gypsum 1 stalk 0.5 urea 0.01-0.05
Used in preceding 10 days at crop-planting.
Embodiment 2, field crop plantation alkaline soil improver
Prescription: phosphogypsum CaSO42H2O1 stalk 0.65 urea 0.01-0.07
Embodiment 3, afforestation alkaline soil improver
Prescription: gypsum 1 stalk 1 urea 0.01-0.02
Embodiment 4, afforestation alkaline soil improver
Phosphogypsum 1 stalk 1.3 urea 0.01-0.03
With winter be that the willow of 1 year seedling age of wasteland plantation of 8.2-8.5 is the use of example explanation embodiment 3,4 at soil pH value:
1, digs the treehole of 40 centimeter square, mix thoroughly with the soil that digs out, plant use in preceding 10 days sapling at least according to every tree 1000-2500 gram alkaline soil improver.
2, plant trees, after sapling went into the hole, the soil that modifying agent has been mixed in backfill suitably watered.
During no irrigation and drainage condition, should not surpass in 0.2% the soil at solubility salinity content and use.
Listed examples of the present invention is intended to further illustrate embodiment of the present invention, and scope of the present invention is not constituted any restriction, the product that obtains with the embodiment of the invention and all can obtain the alkaline soil improver product via claims 1,2,3,4,5,6,7 described technical schemes of the present invention.
Claims (7)
1, a kind of alkaline soil improver, its composition comprise following weight part: gypsum 1, stalk 0.5-1.5, urea 0.01-0.08.
2, alkaline soil improver according to claim 1 is characterized in that described gypsum comprises phosphogypsum CaSO
42H
2O.
3, alkaline soil improver according to claim 1 is characterized in that: when being used to plant field crop, its composition is following weight part: gypsum 1, stalk 0.5, urea 0.01-0.05.
4, according to claim 2 or 3 described alkaline soil improvers, it is characterized in that: when being used to plant field crop, its composition is following weight part: phosphogypsum 1, stalk 0.65, urea 0.01-0.07.
5, alkaline soil improver according to claim 1 is characterized in that: when being used to plant trees, its composition is following weight part: gypsum 1, stalk 1, urea 0.01-0.02.
6, according to claim 2 or 5 described alkaline soil improvers, it is characterized in that: when being used to plant trees, its composition is following weight part: phosphogypsum 1, stalk 1.3, urea 0.01-0.03.
7, alkaline soil improver according to claim 1, it is characterized in that described crushed stalk length more than 80% less than 0.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100123661A CN1297632C (en) | 2005-03-01 | 2005-03-01 | Alkaline soil improver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100123661A CN1297632C (en) | 2005-03-01 | 2005-03-01 | Alkaline soil improver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1664064A CN1664064A (en) | 2005-09-07 |
| CN1297632C true CN1297632C (en) | 2007-01-31 |
Family
ID=35035379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100123661A Expired - Fee Related CN1297632C (en) | 2005-03-01 | 2005-03-01 | Alkaline soil improver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1297632C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107189790A (en) * | 2017-07-25 | 2017-09-22 | 舒城县舒茶九六茶场 | A kind of alkaline soil improver |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100443563C (en) * | 2006-11-01 | 2008-12-17 | 宁夏大学 | Nutritive soil improver special for salt alkali land and its processing method |
| CN102352258B (en) * | 2011-08-17 | 2013-08-28 | 中国矿业大学(北京) | Salinized wetland improving agent |
| CN102503661B (en) * | 2011-10-13 | 2013-05-08 | 山东省农业科学院农业资源与环境研究所 | Soil amendment prepared from biogas residue and wormcast as main material and preparation method thereof |
| CN109233863B (en) * | 2018-11-13 | 2020-11-03 | 江苏省农业科学院 | Saline-alkali soil conditioner using straw and application thereof |
| CN110157447A (en) * | 2019-05-22 | 2019-08-23 | 辽宁工程技术大学 | A kind of dust storm soil conditioner and preparation method thereof and application method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1134926A (en) * | 1995-05-02 | 1996-11-06 | 山东农业大学 | Fertilizer made up of plant stalks |
| CN1439623A (en) * | 2003-03-18 | 2003-09-03 | 高元财 | Straw organic composite fertilizer and production thereof |
-
2005
- 2005-03-01 CN CNB2005100123661A patent/CN1297632C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1134926A (en) * | 1995-05-02 | 1996-11-06 | 山东农业大学 | Fertilizer made up of plant stalks |
| CN1439623A (en) * | 2003-03-18 | 2003-09-03 | 高元财 | Straw organic composite fertilizer and production thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107189790A (en) * | 2017-07-25 | 2017-09-22 | 舒城县舒茶九六茶场 | A kind of alkaline soil improver |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1664064A (en) | 2005-09-07 |
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