CN109983999A - A kind of salt affected soil processing method significantly reducing section salinity - Google Patents
A kind of salt affected soil processing method significantly reducing section salinity Download PDFInfo
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- CN109983999A CN109983999A CN201910282360.8A CN201910282360A CN109983999A CN 109983999 A CN109983999 A CN 109983999A CN 201910282360 A CN201910282360 A CN 201910282360A CN 109983999 A CN109983999 A CN 109983999A
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- salt
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B79/00—Methods for working soil
- A01B79/02—Methods for working soil combined with other agricultural processing, e.g. fertilising, planting
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
- A01G22/20—Cereals
- A01G22/22—Rice
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Botany (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
- Cultivation Of Plants (AREA)
- Soil Conditioners And Soil-Stabilizing Materials (AREA)
Abstract
The invention discloses a kind of salt affected soil processing methods for significantly reducing section salinity, belong to salt affected soil improving technology field.The present invention passes through sewer pipe combination-subdrainage: utilizing the principle of " salt goes come, salt with water with water ", rinse salinity, the crops for planting different characteristics improve soil alkaline situation, that is, first pass through rice cultivation pressure salt, then the rape by planting salt-enduring cultivars carries out suction salt；Surface soil is improved by spreading fertilizer over the fields modifying agent.The salinity of soil difference section is effectively reduced by means of the present invention.
Description
Technical field
The invention belongs to salt affected soil improving technology fields, and in particular to a kind of salt affected soil for significantly reducing section salinity
Processing method.
Background technique
Salt-soda soil refers to that groundwater level increases, salinity enhances, in addition drought and evaporation are strong, leads to deep soil
The phenomenon that earth salinity is migrated to surface soil, and surface soil salinization or alkalization degree aggravate.The essence that saline-alkali soil is formed is that solubility salt exists
It is redistributed in soil, soluble-salt has been more than normal value in upper soll layer accumulation.Light salinized soil, soil salt content 0
.1% ~ 0 .2%；Moderate salinization soil, soil salt content 0 .2% ~ 0 .4%；Severe salinization soil, 0 .4% ~ 0 of soil salt content
.6%.Anion in salt-soda soil mainly include chloride ion, sulfate ion, nitrate ion, carbanion, phosphate radical from
Son, orthophosphite ions, cation mainly include sodium ion, potassium ion, magnesium ion, calcium ion, ammonium ion etc..Yin from
Under son and cation sites, a large amount of strong base-weak acid salts are integrally presented in the soil in salt-soda soil, and therefore, salt-soda soil is in alkalinity.Soil contains
When salt amount is higher, plant absorption moisture, minerals and other nutriments it is less able, to make the growth of plant by shadow
It rings.Most plants are suitble to faintly acid, neutrality or weakly alkaline growing environment, basic soil to be also unfavorable for plant growth simultaneously.
And the soil in salt-soda soil after irrigation have very big stickiness, after soil dehydration again be easy it is hardened, influence plant root breathing.
Therefore salt affected soil is to be not suitable for most plants to grow.According to statistics, 99,130,000 hectares of salt-soda soils are contained in China at present, saline and alkaline
The improvement of soil is for promoting the grain security in China to be of great significance.
The salinization of soil not only causes the massive losses of the destruction Of resources and agricultural production, also to biosphere and ecological environment structure
At threat, the stability for reducing groundwater quality, reducing bio-diversity, destroying highway and building, thus to environment and warp
Two aspect of Ji causes damages.Therefore, surface soil salinity how is reduced to create good working condition and reduce section salt content
Prevent the accumulation of salt in the surface soil from having important realistic meaning.
Summary of the invention
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide a kind of salt affected soil for significantly reducing section salinity
Processing method.This method
Coastal saline soil salt content is high, is unfavorable for plant growth and yield composition, how to reduce surface soil salinity creation
Good working condition and reducing section salt content prevents the accumulation of salt in the surface soil from having important realistic meaning.The present invention provides a kind of significant decreases
The salt affected soil processing method of section salinity, the beneficial effect is that 0-80 cm section soil salt can be removed significantly.
To achieve the above object, the present invention adopts the following technical scheme:
A kind of salt affected soil processing method significantly reducing section salinity, comprising the following steps: sewer pipe combination-subdrainage, water
Seed rice plants pressure salt, salt is inhaled in dry farming and earth's surface improvement.
A kind of salt affected soil processing method significantly reducing section salinity, comprising the following specific steps
(1) sewer pipe combination-subdrainage: soil salt is reduced by the way of closed drainage and buried drain；Buried drain is just
It is in underground 80cm depth ditching, ditch middle berth fills out the stalk haydite layer of 20 cm thickness, 75 cm of depth at the water inlet of underdrain, drainage position
85 cm of depth, hidden pipe use single-wall corrugated pipe, and non-woven fabrics and geotextile are wrapped up in pipe periphery, 85 cm of starting point depth of intaking,
95 cm of discharge ends depth, every two rows hidden pipe surface 10 cm position arrangement, one underdrain, is staggered, in farmland side slope brick
Valve well is built, so as to management service；
(2) Rice Cropping presses salt: planted on salt affected soil one season rice, rice uses the method basined irrigation of flood, the step mesh
It is the dual-drainage in acceleration (1), rice seedling and jointing-booting stage are basined irrigation and not intermittently；Entire breeding time irrigation volume >=
1000 mm；
(3) salt is inhaled in dry farming: being planted using salt-enduring cultivars rape, which is to further remove topsoil soils salinity
Second stubble crop production creates good conditions；Cultivation line-spacing and spacing are disposed as 20 cm, the time of infertility control soil moisture content >=
70%, using microbial organic fertilizer provide nutrition, 920 ~ 950 kg/ mus of amount of application；
(4) earth's surface improves: the dry modifying agent of 0.4 g is diluted with water to 800ml；It uses and spreads fertilizer over the fields after modifying agent water suction completely
Method be manured into soil, kg/ mus of amount of application 10-30.
Stalk haydite layer in above-mentioned steps (1) are as follows: 4-8 cm corn stover, 4-8 cm rice straw, haydite, rice chaff according to
Mass ratio 10:2:3:2 is mixed.
Modifying agent in above-mentioned steps (4) are as follows: it is saline and alkaline rich according to matter that modifying agent standing grain health, modifying agent apply good and modifying agent
Amount is mixed than 1:1:1.
The present invention has the advantages that
(1) sewer pipe combination-subdrainage: the principle of Yu Liyong " salt comes with water, salt is gone with water " rinses salinity.
(2) improve soil alkaline situation by the crops of plantation different characteristics, that is, first pass through rice cultivation pressure salt, then lead to
The rape for crossing plantation salt-enduring cultivars carries out suction salt.
(3) surface soil is improved by spreading fertilizer over the fields modifying agent.
(4) salinity of soil difference section is effectively reduced by means of the present invention.
Specific embodiment
Below by way of specific embodiment, the present invention is described further.
Embodiment 1
It tests and was carried out in 2016 in Zhejiang Cixi Hangzhou Wan.
A kind of salt affected soil processing method significantly reducing section salinity, comprising the following specific steps
(1) sewer pipe combination-subdrainage: soil salt is reduced by the way of closed drainage and buried drain；Buried drain is just
It is in underground 80cm depth ditching, ditch middle berth fills out the stalk haydite layer of 20 cm thickness, 75 cm of depth at the water inlet of underdrain, drainage position
85 cm of depth, hidden pipe use single-wall corrugated pipe, and non-woven fabrics and geotextile are wrapped up in pipe periphery, 85 cm of starting point depth of intaking,
95 cm of discharge ends depth, every two rows hidden pipe surface 10 cm position arrangement, one underdrain, is staggered, in farmland side slope brick
Valve well is built, so as to management service.
(2) Rice Cropping presses salt: planted on salt affected soil one season rice, rice uses the method basined irrigation of flood, the step
Rapid purpose be the dual-drainage in acceleration (1), and rice seedling and jointing-booting stage are basined irrigation and not intermittently；Entire breeding time irrigates
Measure 1000 mm.
(3) salt is inhaled in dry farming: being planted using salt-enduring cultivars " south oil salt 1 " rape, the step is in order to further remove
Topsoil soils salinity creates good conditions for second stubble crop production；Cultivation line-spacing and spacing are disposed as 20 cm, the time of infertility
Soil moisture content 70% is controlled, provides nutrition (unusable chemical fertilizer) using microbial organic fertilizer (the glad organic fertilizer of Shijiazhuang rain),
920 kg/ mus of amount of application；
(4) earth's surface improves: the dry modifying agent of 0.4 g being diluted with water to 800ml, uses and spreads fertilizer over the fields after modifying agent water suction completely
Method be manured into soil, 10 kg/ mus of amount of application.
Stalk haydite layer in above-mentioned steps (1) are as follows: 4-8 cm corn stover, 4-8 cm rice straw, haydite, rice chaff according to
Mass ratio 10:2:3:2 is mixed.
Modifying agent in above-mentioned steps (4) are as follows: it is saline and alkaline rich according to matter that modifying agent standing grain health, modifying agent apply good and modifying agent
Amount is mixed than 1:1:1.
Embodiment 2
It is carried out in Zhejiang Cixi Hangzhou Wan within 2017.
A kind of salt affected soil processing method significantly reducing section salinity, comprising the following specific steps
(1) sewer pipe combination-subdrainage: soil salt is reduced by the way of closed drainage and buried drain；Buried drain is just
It is in underground 80cm depth ditching, ditch middle berth fills out the stalk haydite layer of 20 cm thickness, 75 cm of depth at the water inlet of underdrain, drainage position
85 cm of depth, hidden pipe use single-wall corrugated pipe, and non-woven fabrics and geotextile are wrapped up in pipe periphery, 85 cm of starting point depth of intaking,
95 cm of discharge ends depth, every two rows hidden pipe surface 10 cm position arrangement, one underdrain, is staggered, in farmland side slope brick
Valve well is built, so as to management service.
(2) Rice Cropping presses salt: planted on salt affected soil one season rice, rice uses the method basined irrigation of flood, the step
Rapid purpose be the dual-drainage in acceleration (1), and rice seedling and jointing-booting stage are basined irrigation and not intermittently；Entire breeding time irrigates
Measure 1100 mm.
(3) salt is inhaled in dry farming: being planted using salt-enduring cultivars " south oil salt 1 " rape, the step is in order to further remove
Topsoil soils salinity creates good conditions for second stubble crop production；Cultivation line-spacing and spacing are disposed as 20 cm, the time of infertility
Soil moisture content 90% is controlled, provides nutrition (unusable chemical fertilizer) using microbial organic fertilizer (the glad organic fertilizer of Shijiazhuang rain),
950 kg/ mus of amount of application；
(4) earth's surface improves: the dry modifying agent of 0.4g is diluted with water to 800ml；It uses and spreads fertilizer over the fields after modifying agent water suction completely
Method be manured into soil, 30 kg/ mus of amount of application.
Stalk haydite layer in above-mentioned steps (1) are as follows: 4-8 cm corn stover, 4-8 cm rice straw, haydite, rice chaff according to
Mass ratio 10:2:3:2 is mixed.
Modifying agent in above-mentioned steps (4) are as follows: it is saline and alkaline rich according to matter that modifying agent standing grain health, modifying agent apply good and modifying agent
Amount is mixed than 1:1:1.
Embodiment 3
It tests and was carried out in 2017 in Zhejiang Cixi Hangzhou Wan.
A kind of salt affected soil processing method significantly reducing section salinity, comprising the following specific steps
(1) sewer pipe combination-subdrainage: soil salt is reduced by the way of closed drainage and buried drain；Buried drain is just
It is in underground 80cm depth ditching, ditch middle berth fills out the stalk haydite layer of 20 cm thickness, 75 cm of depth at the water inlet of underdrain, drainage position
85 cm of depth, hidden pipe use single-wall corrugated pipe, and non-woven fabrics and geotextile are wrapped up in pipe periphery, 85 cm of starting point depth of intaking,
95 cm of discharge ends depth, every two rows hidden pipe surface 10 cm position arrangement, one underdrain, is staggered, in farmland side slope brick
Valve well is built, so as to management service.
(2) Rice Cropping presses salt: planted on salt affected soil one season rice, rice uses the method basined irrigation of flood, the step
Rapid purpose be the dual-drainage in acceleration (1), and rice seedling and jointing-booting stage are basined irrigation and not intermittently；Entire breeding time irrigates
Measure 1200 mm.
(3) salt is inhaled in dry farming: being planted using salt-enduring cultivars " south oil salt 1 " rape, the step is in order to further remove
Topsoil soils salinity creates good conditions for second stubble crop production；Cultivation line-spacing and spacing are disposed as 20 cm, the time of infertility
Soil moisture content 80% is controlled, provides nutrition (unusable chemical fertilizer) using microbial organic fertilizer (the glad organic fertilizer of Shijiazhuang rain),
935 kg/ mus of amount of application；
(4) earth's surface improves: the dry modifying agent of 0.4 g is diluted with water to 800ml；It uses and spreads fertilizer over the fields after modifying agent water suction completely
Method be manured into soil, 20 kg/ mus of amount of application.
Stalk haydite layer in above-mentioned steps (1) are as follows: 4-8 cm corn stover, 4-8 cm rice straw, haydite, rice chaff according to
Mass ratio 10:2:3:2 is mixed.
Modifying agent in above-mentioned steps (4) are as follows: it is saline and alkaline rich according to matter that modifying agent standing grain health, modifying agent apply good and modifying agent
Amount is mixed than 1:1:1.
Comparative example 1
Specific processing step does not include the steps that in embodiment 3 (1) with embodiment 3.
As a result:
Measurement is without processing (CK), and the processing (T1) of comparative example 1 and the processing (T2) of embodiment 3 are in 0-80 cm soil salt sub-prime
Score is measured, the results are shown in Table 1.Table 1 the result shows that, the soil salt of 0-20 cm, 20-40 cm, 40-60 cm and 60-80 cm soil layer
Mass fraction is divided to be remarkably decreased.
1 soil profile salinity mass fraction (g/kg) of table
Different letters are indicated in 0.05 horizontal upper significant difference (LSD) after numerical value in table.
The foregoing is merely presently preferred embodiments of the present invention, all equivalent changes done according to scope of the present invention patent with
Modification, is all covered by the present invention.
Claims (4)
1. a kind of salt affected soil processing method for significantly reducing section salinity, which comprises the following steps: sewer pipe knot
Salt and earth's surface improvement are inhaled in conjunction-subdrainage, Rice Cropping pressure salt, dry farming.
2. a kind of salt affected soil processing method for significantly reducing section salinity according to claim 1, which is characterized in that packet
Include step in detail below:
(1) sewer pipe combination-subdrainage: soil salt is reduced by the way of closed drainage and buried drain；Buried drain is
In 80 cm depth ditching of underground, ditch middle berth fills out the stalk haydite layer of 20 cm thickness, and depth is 75 cm, draining at the water inlet of underdrain
Place's depth is 85 cm；Hidden pipe uses single-wall corrugated pipe, and non-woven fabrics and geotextile are wrapped up in pipe periphery, starting point depth 85 of intaking
Cm, 95 cm of discharge ends depth, every two rows hidden pipe surface 10 cm position arrangement, one underdrain, are staggered, in farmland side slope
With brick valve well, so as to management service；
(2) Rice Cropping presses salt: planted on salt affected soil one season rice, rice uses the method basined irrigation of flood, the step mesh
It is the dual-drainage in acceleration (1), rice seedling and jointing-booting stage are basined irrigation and not intermittently；Entire breeding time irrigation volume >=
1000 mm；
(3) salt is inhaled in dry farming: being planted using salt-enduring cultivars rape, which is to further remove topsoil soils salinity
Second stubble crop production creates good conditions；Cultivation line-spacing and spacing are disposed as 20 cm, the time of infertility control soil moisture content >=
70%, using microbial organic fertilizer provide nutrition, 920 ~ 950 kg/ mus of amount of application；
(4) earth's surface improves: the dry modifying agent of 0.4 g being diluted with water to 800ml, uses and spreads fertilizer over the fields after modifying agent water suction completely
Method be manured into soil, kg/ mus of amount of application 10-30.
3. a kind of salt affected soil processing method for significantly reducing section salinity according to claim 2, it is characterised in that: institute
State stalk haydite layer in step (1) are as follows: 4-8 cm corn stover, 4-8 cm rice straw, haydite, rice chaff are according to mass ratio 10:
2:3:2 is mixed.
4. a kind of salt affected soil processing method for significantly reducing section salinity according to claim 2, it is characterised in that: institute
State the modifying agent in step (4) are as follows: it is saline and alkaline rich mixed according to mass ratio 1:1:1 that modifying agent standing grain health, modifying agent apply good and modifying agent
It closes.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113711876A (en) * | 2021-09-30 | 2021-11-30 | 浙江省农业科学院 | Method for constructing rice planting on coastal saline-alkali land through preferential flow, desalination and fertilization topsoil |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113711876A (en) * | 2021-09-30 | 2021-11-30 | 浙江省农业科学院 | Method for constructing rice planting on coastal saline-alkali land through preferential flow, desalination and fertilization topsoil |
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Application publication date: 20190709 |