CN104031648A - City garden soil secondary salinization improving agent and preparation method thereof - Google Patents
City garden soil secondary salinization improving agent and preparation method thereof Download PDFInfo
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- CN104031648A CN104031648A CN201410209690.1A CN201410209690A CN104031648A CN 104031648 A CN104031648 A CN 104031648A CN 201410209690 A CN201410209690 A CN 201410209690A CN 104031648 A CN104031648 A CN 104031648A
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Abstract
The invention provides a city garden soil secondary salinization improving agent and a preparation method thereof. The improving agent comprises the following components on a dry weight basis: 20-30 parts of active humic acid, 35-45 parts of an organic matter, 8-12 parts of clinoptilolite, and 0.2-0.3 part of exchangeable calcium. The improving agent overcomes the problems that the investment cost is too high, improvement is difficult to continue and acting is slow in a conventional city garden soil secondary salinization improving technology, can obviously improve the soil physicochemical properties, significantly improves the survival rate of garden plants, has low cost, allows the garden soil to be improved continuously and gradually, and is wide in adaptability.
Description
(1) technical field
The present invention relates to city trees and shrubs soil secondary salinization Prevention Technique, be specifically related to the agent of a kind of garden soil improvement of salt and alkaline land and preparation method.
(2) background technology
Along with the development of Process of Urbanization Construction, the mankind's activity day by day increasing, makes the natural proterties of urban soils that very large change occur, and has formed unique urban soil.Owing to being often mixed with building castoff in urban soil as foreign material such as cement, fragments of brick, and these materials are generally strong basicity, and the overwhelming majority has lime reaction.In addition, in city, a large amount of spraying snow-melting agents in road surface in winter, ice melting agent and industrial salt, the extensive application of building anti-freezing agent, these salinities just enter in urban soil with sleet.In addition, unreasonablely use a large amount of chemical fertilizer, cause gathering of base cation.For these reasons, cause the saltiness in urban soil greatly to improve, the serious secondary salinization of urban soil.
In afforestation process, take some measures quality and the structure of improving urban soil, and then alleviate the salt damage to plant.Conventional measure has: 1. organic fertilizer, for clayey soil, can make loosing soil, venting and water permeable, and improve soil.And for calculous soil earth, can increase the organic nutrient content of gravel soil, still, because the source of fertilizer is different with kind, if there is no fine processing, can cause secondary pollution of area source.2. paving is husky: in urban afforestation management, paving sand both can be improved clayey soil quality, increased porosity and the permeability of its soil, reduced soil tackiness, can play again and fill and lead up lawn hollow simultaneously, increased the effect of greenery patches beauty function.But the husky amount of paving misapplication, can cause the desertification of soil, preservation capacity of water and fertility reduces.3. soil moved in to improve the original improvement, due to construction work, road construction all destroys upper soll layer, upper soll layer is mostly building waste, stone and cubsoil, nutrient deficiency, poor-performing, need to carry out soil removal and replacement, if plant lawn or flower bed just carry out comprehensive soil removal and replacement, single kind trees, available large cave soil removal and replacement.During soil removal and replacement, should note soil moved in to improve the original source, soil property and public health situation, choice structure good, and the soil is porous, and neutral weak acid is rich in the loam of organic matter and soil nutrient.Though soil moved in to improve the original improvement is effective, the method is multiplex carries out before tree grafting growth, for the edatope secondary salinization of the ornamental trees and shrubs that survive, will have no way of doing it.Therefore, be badly in need of being applicable to urban soil improving technology and the preparation of ornamental trees and shrubs growth.
(3) summary of the invention
The object of the present invention is to provide a kind of formula for a product reasonable, salt reduction successful, significantly improves ornamental plant and survives and guarantee normal growth growth, the obvious city trees and shrubs soil secondary salinization of economic benefit modifying agent.
The object of the present invention is achieved like this: its component comprises activated humic acid, organic matter, clinoptilolite and exchangeable calcium, in dry weight, activated humic acid content is 20～30 parts, and organic matter is 35～45 parts, 8～12 parts of clinoptilolite content, exchangeable calcium content is 0.2～0.3 part.Wherein activated humic acid can be weathered coal or brown coal, and exchangeable calcium can be phosphogypsum, and organic matter can be dry branches and fallen leaves or farmland stalk.
The preparation method who another object of the present invention is to provide a kind of above-mentioned city trees and shrubs soil secondary salinization modifying agent, the method process comprises:
(1) raw material: comprise weathered coal or brown coal (HA >=40%), zeolite (clinoptilolite >=85%), dry branches and fallen leaves or farmland stalk (moisture≤20%) and phosphogypsum (CaO >=20%), by dry weight than (60～70): (15～10): (10～15): (3～5).
(2) preparation process:
1. weathered coal or brown coal, pulverized 60-80 mesh sieve;
2. dry branches and fallen leaves or farmland stalk are dried, and are crushed to 40-60 order;
3. zeolite powder is broken to 60-80 order;
4. weathered coal, dry branches and fallen leaves or farmland stalk, zeolite, phosphogypsum are pressed dry weight than (60～70): (15～10): (10～15): mix (3～5);
5. regulate humidity 30%～45%, 35 ℃～45 ℃ of temperature, stack 20～30 days;
6. air-dry to moisture≤15%.
the present inventionfor urban soil secondary salinization present situation, according to garden soil secondary salinization degree and Garden Greenland type, utilize the improved materials such as humic acids, zeolite, dry branches and fallen leaves (or farmland stalk), by test, carry out formula adjustment, form garden soil secondary salinization modifying agent, it is with strong points, simple to operate, cost is low, the garden soil secondary salinization modifying agent of pollution-free and successful.By field test, can improve the soil organism and porosity; Improve soil moisture characteristic; Reduce soil salt, reduced compared with the control 25%-40%; Increase soil buffer action.
(4) embodiment
Below in conjunction with specific embodiment, the present invention is further illustrated:
Embodiment 1:
(1) raw material: select Luobei, Heilongjiang Province brown coal (total humic acid content 62.4%, ash content 10.6%); The zeolite ore deposit in the place of production, Jiutai, containing clinoptilolite 70%, cation exchange capacity 150cmol/kg; Maize straw water content 28%; The phosphogypsum of phosphate fertilizer plant of Nan Hua company is (containing P
2o
51～1.8%, CaO 30～31.5%, SO
240～43%, MgO 0.1～1.2%) by dry weight, compare 65:12:20:3.
(2) preparation:
1. weathered coal, pulverized 60 mesh sieves;
2. maize straw is dried, and is crushed to 60 orders;
3. zeolite powder is broken to 60 orders;
4. weathered coal, dry branches and fallen leaves (or farmland stalk), zeolite, phosphogypsum mix;
5. add water and regulate humidity 30%～45%, temperature is controlled 35 ℃～45 ℃, stacks 30 days;
6. air-dry to moisture≤15%.
Embodiment 2:
(1) raw material: select Wuchuan, Inner Mongol weathered coal (total humic acid content 42.5%, ash content 11.3%); The zeolite ore deposit of Muling, Heilongjiang, containing clinoptilolite 75%, cation exchange capacity 125cmol/kg; Dry branches and fallen leaves water content 23%; Phosphate fertilizer plant of Nan Hua company phosphogypsum is (containing P
2o
51～1.8%, CaO 30～31.5%, SO
240～43%, MgO 0.1～1.2%) by dry weight, compare 70:10:15:5.
(2) preparation:
1. weathered coal, pulverized 80 mesh sieves;
2. maize straw is dried, and is crushed to 60 orders;
3. zeolite powder is broken to 80 orders;
4. weathered coal, dry branches and fallen leaves (or farmland stalk), zeolite, phosphogypsum mix;
5. add water and regulate humidity 30%～45%, temperature is controlled 35 ℃～45 ℃, stacks 30 d;
6. air-dry to moisture≤15%.
In the present invention, per-cent is all weight percentage.
Claims (3)
1. a city trees and shrubs soil secondary salinization modifying agent, the component that it is characterized in that it comprises activated humic acid, organic matter, clinoptilolite and exchangeable calcium, in dry weight, activated humic acid content is 20～30 parts, organic matter is 35～45 parts, 8～12 parts of clinoptilolite content, exchangeable calcium content is 0.2～0.3 part.
2. a kind of city trees and shrubs soil secondary salinization modifying agent according to claim 1, is characterized in that activated humic acid is weathered coal or brown coal, and exchangeable calcium is phosphogypsum, and organic matter is dry branches and fallen leaves or farmland stalk.
3. a preparation method for a kind of city trees and shrubs soil secondary salinization modifying agent according to claim 1, is characterized in that the method process comprises:
(1) raw material: comprise weathered coal or brown coal (HA >=40%), zeolite (clinoptilolite >=85%), dry branches and fallen leaves or farmland stalk (moisture≤20%) and phosphogypsum (CaO >=20%), by dry weight than (60～70): (15～10): (10～15): (3～5);
(2) preparation process:
(1) weathered coal or brown coal, pulverized 60-80 mesh sieve;
(2) dry branches and fallen leaves or farmland stalk are dried, and are crushed to 40-60 order;
(3) zeolite powder is broken to 60-80 order;
(4) weathered coal, dry branches and fallen leaves or farmland stalk, zeolite, phosphogypsum are pressed dry weight than (60～70): (15～10): (10～15): mix (3～5);
(5) regulate humidity 30%～45%, 35 ℃～45 ℃ of temperature, stack 20～30 days;
(6) air-dry to moisture≤15%.
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| CN201410209690.1A CN104031648A (en) | 2014-05-19 | 2014-05-19 | City garden soil secondary salinization improving agent and preparation method thereof |
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| CN201410209690.1A CN104031648A (en) | 2014-05-19 | 2014-05-19 | City garden soil secondary salinization improving agent and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109121523A (en) * | 2018-08-06 | 2019-01-04 | 江苏富达秸秆利用有限公司 | A method of for improveing soil secondary salinization |
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| CN101307234A (en) * | 2008-05-27 | 2008-11-19 | 刘奋安 | Organic modifying agent for low-yield soil and method for preparing same |
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| CN102863276A (en) * | 2011-07-06 | 2013-01-09 | 黑龙江省农业科学院农村能源研究所 | Seedling raising base material taking rice husk ash and coal ash as adsorbent and preparation method thereof |
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| CN101096598A (en) * | 2007-07-03 | 2008-01-02 | 张余良 | Amendment for inhibiting brackish water irrigated soil polysalt |
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| CN102863276A (en) * | 2011-07-06 | 2013-01-09 | 黑龙江省农业科学院农村能源研究所 | Seedling raising base material taking rice husk ash and coal ash as adsorbent and preparation method thereof |
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Application publication date: 20140910 |