CN106922240A - A kind of coastal saline-alkali soil cultivating layer quick desalination method and application - Google Patents
A kind of coastal saline-alkali soil cultivating layer quick desalination method and application Download PDFInfo
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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
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B79/00—Methods for working soil
- A01B79/005—Precision agriculture
Abstract
The present invention relates to a kind of method of coastal saline-alkali soil cultivating layer quick desalination, including：1st, the field leveled land with construction criteria, field is wide 50 200 meters, long 50 200 meters, the distribution of field both sides one inlet channel and a drainage ditch, field flatness requirement ± 5 centimetre.2nd, operation of turning over is carried out from the suitable mechanical and method of ploughing of turning over.3rd, appropriate time solar radiation is left and taken after turning over to sun the earth which has been ploughed up.4th, field inflow control is higher by 0.1 to 0.2 meter of field in proper range.5th, soil is soaked after intaking and implements rotary tillage process using agricultural rotary tiller band water.6th, settled mud time span control after water rotary tillage.Strong solubility and high-dissolvability of the present invention utilization water to salt, salt-soda soil arable layer salinity is quickly discharged soil, salt-soda soil arable layer salt content is down to required scope in the short time, be easy to ensuing farming operation, soil and freshwater resources are efficiently utilized, arable area is significantly increased.
Description
Technical field
The present invention relates to a kind of coastal saline-alkali soil cultivating layer quick desalination method and application, more particularly to a kind of strand salt
Alkaline earth ground arable layer belongs to alkaline land improving technical field using the method for the quick desalination of fresh water.
Background technology
China's saline alkali land area is widely distributed, and salinization and alkalization is generally higher, and saline-alkali soil ground has long-pending increase year by year to become
Gesture.Particularly east coastal region, with the continuous propulsion of coastal great development, will have more beach lands used urgently to develop.Such as
Tidal flat of Jiangsu Province Development Strategy is planned for the year two thousand twenty, it is contemplated that encloses and fills out 180,000 hectares of marine site beach, wherein 60% is designed for agriculture
Industry；Zhejiang Tidal Flat Reclamation planning display, to 130,000 hectares of new Climacteric symptoms of the year two thousand twenty, wherein being used for agricultural production more than 30%.But
It is that saline Land continues to cause tremendous influence to China's agricultural production, gently then underproduction influence quality, heavy then No kernels or seeds are gathered, as in a year of scarcity.Cause
This, rapidly and efficiently improves saline and alkaline soil, improves the agricultural production security of Saline, is still important of China's agricultural development
One of business.
The freshwater resources total amount of China is 28000 billion cubic meters, accounts for the 6% of global water resources, is only second to Brazil, Russia
And Canada, rank the 4th, the world.But because the Area distribution of precipitation is very uneven, cause national water and soil resources not
Equilibrium appearance, such as Huang, Huaihe River, extra large three large watershed, arable land account for the 40% of the whole nation, and water resources quantity only accounts for the 8% of the whole nation, and freshwater resources are tight
；And ploughed on the south the Yangtze river basin and the Changjiang river only account for the whole nation 36%, water resources quantity but account for the whole nation 80%, so the Yangtze river basin and
The Changjiang river areas to the south has than more rich freshwater resources.These areas are also the key area of Tidal Flat Reclamation, since the establishment of the nation, China
A series of Perioperative cardiac events engineerings are implemented, total Climacteric symptoms area surpasses 1,000,000 hectares.So make full use of the Yangtze river basin and its on the south
The abundant advantage of regional freshwater resources, rapidly and efficiently improveing beach saline-alkali soil has feasibility, while having great importance.
Method at present about alkaline land soil salt discharge is many, such as " fresh water pressure salt ", " hidden pipe salt discharge ", " underground obstruct row
Salt ", " vertical infiltrating irrigation salt discharge " etc., although these methods have certain feasibility, also achieve good effect, but these
The presentation of method salt discharge effect generally needs the long period, and what is had also needs to input cost very high, or even has to environment broken
Bad effect.So the present invention is highlighted as the time is short, speed for the method for coastal saline-alkali soil cultivating layer rapidly and efficiently salt discharge
Hurry up, less investment, the characteristics of profitable.
The content of the invention
It is especially abundant in China's water resource it is an object of the invention to provide a kind of method of salt-soda soil arable layer quick desalination
Area.Because these areas are still dispersed with many saline and alkaline soils, protruded the most with coastal new Climacteric symptoms.Utilized in the past
Water resource often lacks ageing and normalization to alkaline land improving, not only time-consuming to take a lot of work, and also causes water to provide to a certain extent
Source wastes.The purpose of the present invention lies also in the saline and alkaline soil desalination speed of solution slowly and usability difference problem, main to utilize water to salt
The strong solubility and high-dissolvability of salinity in alkaline earth earth, make an effort in the amount that water resource is utilized and on the time.Of the invention
This purpose is to increase agriculture arable land, promotes grain-production safety, increases agricultural incomes.
Object above is mainly realized by following scheme：
A kind of coastal saline-alkali soil cultivating layer quick desalination method, using freshwater resources, is standardized field construction first, then
Mechanized operation is carried out, recycles freshwater resources to make the arable layer salinity in 0-20 centimetres of coastal saline-alkali soil in 10-30 days saliferous
Amount is less than 0.3%, coordinates rich water to plan strategies for, and coastal saline-alkali soil is normally cultivated and is harvested crops.
Specifically, being estimated to salt-soda soil region Available water resources, mainly include water source position, water source quality and water
Source is using cost etc..It is of the invention main using water to the strong solubility and high-dissolvability of salinity in salt affected soil, so needing first
Determine whether utilizable freshwater resources.Most area on the south China Yangtze river basin and the Yangtze river basin has abundant
Rainfall form the freshwater resources such as river and lake, level of ground water is also shallower to be available for utilizing.These regional salt-soda soils, especially
Beach after enclosing and cultivating, due to the salinity containing high level in soil, the agricultural use value in serious restriction soil.So fully
And rationally using freshwater resources here, for improveing salt-soda soil, with important value.Utilizable freshwater resources requirement contains
Salt amount is less than 0.2%, can be that the river that flows through, or natural precipitation are accumulated in artificial reservior, or well water.Water
Source quality standard should meet《Agricultural irrigation water quality standard-GB5084-2005》.
1st, the standardization field for being easy to mechanization unified operation is set up：
（1）Build inlet channel, 0.4 to 0.6 meter of width of the channel, deep 0.4 to 0.6 meter, inlet channel can be hardened according to circumstances, and canal bottom is not less than
Field basic side, is easy into water operation；
（2）50-200 meters of drainage ditch, drainage ditch and inlet channel spacing are built, drainage ditch is built according to actual conditions, can be non-sclerous,
General canal face is wide 2 meters, and 1 meter of canal bottom width, canal is deep 1 to 1.5 meter, and width and depth should meet field maximum displacement demand（Including
Natural precipitation drains off floodwaters demand）；
（3）Basic field is formed, and laterally builds a ridge between inlet channel and drainage ditch per 50-200 meter, ridge high 0.3 to
It is 0.5 meter, wide 0.4 to 0.6 meter, form basic field long 50-200 meters, wide 50-200 meters.Preferably, the drainage ditch with enter
50-100 meters of water channel spacing, laterally builds a ridge per 50-100 meters between inlet channel and drainage ditch, form long 50-100 meters,
Basic field wide 50-100 meters；It is optimal, drainage ditch and 50 meters of inlet channel spacing, every 50 meters of horizontal strokes between inlet channel and drainage ditch
To a ridge is built, form long 50 meters, 50 meters wide of basic field.
（4）The basic field of standard enters drainage culvert configuration, basic field or so water channel and disposes L-shaped culvert pipe in relative position,
For water inlet and draining.Culvert pipe is 0.3 meter of PVC plastic expects pipe of diameter, and delivery port need to expose at least 0.3 meter, and preventing and treating current cause to collapse
Side.
2nd, after sample piece of farmland is formed, accurately mechanized operation is carried out according to weather condition, including plough, sun the earth which has been ploughed up, soaking,
Water rotation, heavy slurry and 6 basic steps of salt discharge, it is specific as follows：
（1）Plough from several mouldboard plows, adapted agricultural machinery power is not less than 10 kilowatts, it is recommended to use 90 kilowatts of agricultural machinery, ploughs depth
Degree requires 0.15 to 0.2 meter, and full Tagayasu Den turns over and do not stay dead angle.
（2）Sunning the earth which has been ploughed up can make to turn over rear soil block inside salinity with moisture evaporation to soil block surface quickening desalination, can also improve
The physical property and soil texture of soil, increase soil gas permeability, the time of sunning the earth which has been ploughed up according to weather condition, general 2-3 days, in case of
Rainy weather can skip this step.
（3）To flood 0.1 to 0.2 meter of field surface, soak time length is 1 to 2 day to water consumption for immersion, can be according to reality
Situation shortens soak time, or cancels this step.
（4）Water rotation step uses agricultural rotary tiller, and to flood 0.05 meter to 0.1 meter of field surface, water revolves water rotation water consumption
0.1 to 0.15 meter of depth, this step is key link, it is necessary to by all region rotary tillages of field in place.
（5）Heavy slurry step staticly settles mud link for necessary after water rotary tillage, stands heavy slurry time span 1 to 2 day.
（6）Salt discharge step is the salt solution in field of draining after after muddy mud sediment to field bottom.
3rd, after field desalination, before the crops such as rice cultivation, in order to improve soil texture, increase fertility and increase soil is saturating
1 ton every mu of soil improvement acid-sludge is uniformly spread fertilizer over the fields on gas, field top layer, and the acid ingredient of acid-sludge can also reduce the PH of salt affected soil
Value.Other cultivation steps cultivate essentially identical with common rice.
Further, when（1）Plough,（2）Sun the earth which has been ploughed up,（3）Immersion,（4）Water rotation,（5）Heavy slurry and（6）6 steps of salt discharge are complete
During into one time, when topsoil salt content does not reach tillage requirements, should repeat（1）Extremely（6）Step.
It is a further object of the present invention to provide methods described in terms of the layer rapidly and efficiently salt discharge of coastal saline-alkali soil cultivating
Using.
The beneficial effects of the present invention are：The method of the invention time is short, and speed is fast, the low cost of input, to environment
Close friend, and the layer rapidly and efficiently salt discharge of coastal saline-alkali soil cultivating, salt discharge effect is significant can be easy to ensuing in a short time
Farming operation, efficiently utilizes soil and freshwater resources, and arable area is significantly increased.
Brief description of the drawings
Fig. 1 is standardization field schematic diagram.
Fig. 2 is inlet channel and culvert pipe generalized section.
Fig. 3 is drainage ditch and culvert pipe generalized section.
Fig. 4 is mouldboard plow and ploughing depth.
Fig. 5 is water rotary tillage rotary tillage process figure.
Fig. 6 spreads fertilizer over the fields figure to support the use soil conditioner.
Fig. 7 is embodiment field schematic diagram.
Note：The water channel canal dike of numbering 1. in accompanying drawing, 2. inlet channel, 3. field, 4. drainage ditch, culvert pipe of 5. intaking, 6.
Water outlet culvert pipe, 7. water pipe connection movable bend pipe, 8. field horizontal plane, 9. river course, 10 roads.
Specific embodiment
Make specific introduction to the present invention below in conjunction with accompanying drawing and specific experiment scheme：
Embodiment 1
1st, the abundant varieties in saline-alkali areas of freshwater resources is chosen.
2nd, the standardization field for being easy to mechanization unified operation is set up, as shown in Figure 1：
（1）Inlet channel is built, 0.4 to 0.6 meter of width of the channel is deep 0.4 to 0.6 meter, inlet channel hardening, and it is basic that canal bottom is not less than field
Face, is easy into water operation；Fig. 2 is water channel and culvert pipe generalized section.
（2）50-200 meters of drainage ditch, drainage ditch and inlet channel spacing are built, building drainage ditch can harden, and canal face is wide by 2
Rice, 1 meter of canal bottom width, canal is deep 1 to 1.5 meter；Fig. 3 is drainage ditch and drainage culvert generalized section.
（3）Basic field is formed, and laterally builds a ridge between inlet channel and drainage ditch per 50-200 meters, and ridge is high
It is 0.3 to 0.5 meter, wide 0.4 to 0.6 meter, form basic field long 50-200 meters, wide 50-200 meters；
（4）The basic field of standard enters drainage culvert configuration, basic field or so water channel and disposes L-shaped culvert pipe in relative position, is used for
Water inlet and draining.Culvert pipe is 0.3 meter of PVC plastic expects pipe of diameter, and delivery port need to expose at least 0.3 meter, and preventing and treating current cause landslide.
3rd, after sample piece of farmland is formed, accurately mechanized operation is carried out according to weather condition, including plough, sun the earth which has been ploughed up, soaking,
Water rotation, heavy slurry and 6 basic steps of salt discharge, it is specific as follows：
（1）Plough from several mouldboard plows, using 90 kilowatts of agricultural machinery, 0.15 to 0.2 meter of ploughing depth requirement, full Tagayasu Den turns over and do not stay
Dead angle.Fig. 4 is mouldboard plow and ploughing depth.
（2）Sunning the earth which has been ploughed up can make to turn over rear soil block inside salinity with moisture evaporation to soil block surface quickening desalination, can also improve
The physical property and soil texture of soil, increase the gas permeability of soil, sun the earth which has been ploughed up 2-3 days time.
（3）To flood 0.1 to 0.2 meter of field surface, soak time is 1 to 2 day to water consumption for immersion.
（4）Water rotation step uses agricultural rotary tiller, and to flood 0.05 meter to 0.1 meter of field surface, water revolves water rotation water consumption
0.1 to 0.15 meter of depth, as shown in Figure 5.
（5）Heavy slurry step staticly settles mud link for necessary after water rotary tillage, stands heavy slurry time span 1 to 2 day.
（6）Salt discharge step is the salt solution in field of draining after after muddy mud sediment to field bottom.
5th, after field desalination, before the crops such as rice cultivation, in order to improve soil texture, increase fertility and increase soil is saturating
1 ton every mu of soil improvement acid-sludge is uniformly spread fertilizer over the fields on gas, field top layer, and the acid ingredient of acid-sludge can also reduce the PH of salt affected soil
Value.Other cultivation steps cultivate essentially identical with common rice.Fig. 6 spreads fertilizer over the fields figure to support the use soil conditioner.
Embodiment 2
East Coastal somewhere, 100 mu of marine solonchak ground improvement projects.
100 mu of marine solonchaks ground of the project is Tidal Flat Reclamation soil, and north and south is about 310 meters, and thing is wide about 210 meters, soil
Relatively put down on ground.Because salinity is too high（0-20 centimetres of mean salt amount 0.89%）, vegetation is very rare and single, only it is a small amount of saline land
The fluffy growth of alkali.It is remote 10 meters of the soil west side, there is a freshet, preferably, salt content is less than 0.1% to water quality.Water level is relatively low,
Less than about 1 meter of this field plane.
South and north flanks on marine solonchak ground build about 4 meters wide of soil road, are passed in and out in order to agro-farming machinery.Road
Two water channels are built in outside, used as water inlet and total water channel of draining.Intake water inlet water channel in total water channel and field, the total water channel of draining and
Field internal drainage water channel is connected with the culvert of solidification, and culvert is provided with pull-type sluice.With diesel engine or electric water pump from river
Pump water, to intaking, total water channel is supplied.
This marine solonchak ground North and South direction excavates three drainage ditch and two inlet channels altogether（Fig. 7）, 4 fields are formed, enter
One ridge of every 50 meters of builds between water channel and drainage ditch, ridge is high 0.3 to 0.5 meter, wide 0.4 to 0.6 meter, forms long 50 meters, wide
50 meters of basic field.It is basic to be connected with L-shaped PVC plastic culvert pipe between field and inlet channel, drainage ditch.
After basic field is built up, carry out（1）Plough 1 day,（2）Sun the earth which has been ploughed up 3 days,（3）Immersion 3 days,（4）Water rotation 1 day,（5）It is heavy
Slurry 2 days and（6）6 steps of salt discharge, 10 days when altogether, mean salt amount is down to 0.46%, salt discharge rate 48.31% from 0.89%.
It is saturating Deng this plot soil dry（7 days used times）, when can carry out agricultural machinery working, second period circulation is carried out, each step
Rapid timing length（1）Plough 1 day,（2）Sun the earth which has been ploughed up 2 days,（3）Immersion 2 days,（4）Water rotation 1 day,（5）Heavy slurry 2 days and（6）Salt discharge adds up to
7 days used times, mean salt amount is down to 0.32% from 0.46%, and total salt discharge rate is up to 64.04%.
Then the 3rd loop cycle is carried out, step is omitted（1）Plough and（2）Sun the earth which has been ploughed up, carry out step（3）Immersion 1 day,
（4）Water rotation 1 day,（5）Heavy slurry 1 day and（6）Salt discharge step adds up to 3 days used times.Mean salt amount is down to 0.24% from 0.32%, total row
Salt rate reaches 73.03%.Have arrived at the basic demand of Rice Cropping.This marine solonchak desalination processes takes 24 days altogether, salt rejection rate
73.03%, possess the soil environment requirement of rice cultivation.
Before rice cultivation, 1 ton of acid-sludge organic fertilizer is spread fertilizer over the fields on every mu of field top layer, next can carry out machine rice transplantation.Paddy rice
Plant close with common rice planting patterns into this, splash paddy rice water layer salt content, accomplish that duty changes water, and prevent disease pest
Evil.This block marine solonchak first season rice cultivation, average yield per mu 547.14kg realizes 397.85 yuan of average mu benefit.
Embodiment 3
1st, the abundant varieties in saline-alkali areas of freshwater resources is chosen.
2nd, the standardization field for being easy to mechanization unified operation is set up：
（1）Inlet channel is built, 0.5 meter of width of the channel is deep 0.5 meter, inlet channel hardening, and canal bottom is not less than field basic side, is easy into water
Operation.
（2）100 meters of drainage ditch, drainage ditch and inlet channel spacing are built, building drainage ditch can harden, and canal face is wide 2 meters, canal
1 meter of bottom width, canal is deep 1.2 meters.
（3）Basic field is formed, and a ridge is laterally built for every 100 meters between inlet channel and drainage ditch, and ridge is high by 0.4
Rice, it is wide 0.5 meter, form long 100 meters, 100 meters wide of basic field；
（4）The basic field of standard enters drainage culvert configuration, basic field or so water channel and disposes L-shaped culvert pipe in relative position, is used for
Water inlet and draining.Culvert pipe is 0.3 meter of PVC plastic expects pipe of diameter, and delivery port need to expose at least 0.3 meter, and preventing and treating current cause landslide.
3rd, after sample piece of farmland is formed, accurately mechanized operation is carried out according to weather condition, including plough, sun the earth which has been ploughed up, soaking,
Water rotation, heavy slurry and 6 basic steps of salt discharge, it is specific as follows：
（1）Plough from several mouldboard plows, using 90 kilowatts of agricultural machinery, 0.15 to 0.2 meter of ploughing depth requirement, full Tagayasu Den turns over and do not stay
Dead angle.
（2）Sunning the earth which has been ploughed up can make to turn over rear soil block inside salinity with moisture evaporation to soil block surface quickening desalination, can also improve
The physical property and soil texture of soil, increase the gas permeability of soil, sun the earth which has been ploughed up 2-3 days time.
（3）To flood 0.15 meter of field surface, soak time is 1 to 2 day to water consumption for immersion.
（4）Water rotation step uses agricultural rotary tiller, and to flood 0.08 meter of field surface, water revolves depth 0.2 to water rotation water consumption
Rice.
（5）Heavy slurry step staticly settles mud link for necessary after water rotary tillage, stands heavy slurry time span 1 to 2 day.
（6）Salt discharge step is the salt solution in field of draining after after muddy mud sediment to field bottom.
5th, after field desalination, before the crops such as rice cultivation, in order to improve soil texture, increase fertility and increase soil is saturating
1 ton every mu of soil improvement acid-sludge is uniformly spread fertilizer over the fields on gas, field top layer, and the acid ingredient of acid-sludge can also reduce the PH of salt affected soil
Value.Other cultivation steps cultivate essentially identical with common rice.This block marine solonchak first season rice cultivation, average yield per mu
570kg, realizes 414.39 yuan of average mu benefit.
Embodiment 4
1st, the abundant varieties in saline-alkali areas of freshwater resources is chosen.
2nd, the standardization field for being easy to mechanization unified operation is set up, as shown in Figure 1：
（1）Inlet channel is built, 0.4 meter of width of the channel is deep 0.4 meter, inlet channel hardening, and canal bottom is not less than field basic side, is easy into water
Operation.
（2）50 meters of drainage ditch, drainage ditch and inlet channel spacing are built, building drainage ditch can harden, and canal face is wide 2 meters, canal
1 meter of bottom width, canal is deep 1 meter；Fig. 3 is drainage ditch and drainage culvert generalized section.
（3）Basic field is formed, and a ridge is laterally built for every 50 meters between inlet channel and drainage ditch, and ridge is high 0.3 meter,
It is wide 0.4 meter, form long 50 meters, 50 meters wide of basic field；
（4）The basic field of standard enters drainage culvert configuration, basic field or so water channel and disposes L-shaped culvert pipe in relative position, is used for
Water inlet and draining.Culvert pipe is 0.3 meter of PVC plastic expects pipe of diameter, and delivery port need to expose at least 0.3 meter, and preventing and treating current cause landslide.
3rd, after sample piece of farmland is formed, accurately mechanized operation is carried out according to weather condition, including plough, sun the earth which has been ploughed up, soaking,
Water rotation, heavy slurry and 6 basic steps of salt discharge, it is specific as follows：
（1）Plough from several mouldboard plows, using 90 kilowatts of agricultural machinery, 0.15 meter of ploughing depth requirement, full Tagayasu Den turns over and do not stay dead angle.
（2）Sunning the earth which has been ploughed up can make to turn over rear soil block inside salinity with moisture evaporation to soil block surface quickening desalination, can also improve
The physical property and soil texture of soil, increase the gas permeability of soil, sun the earth which has been ploughed up 2 days time.
（3）To flood 0.1 meter of field surface, soak time is 1 to 2 day to water consumption for immersion.
（4）Water rotation step uses agricultural rotary tiller, and to flood 0.05 meter of field surface, water revolves depth 0.1 to water rotation water consumption
Rice.
（5）Heavy slurry step staticly settles mud link for necessary after water rotary tillage, stands heavy slurry time span 1 to 2 day.
（6）Salt discharge step is the salt solution in field of draining after after muddy mud sediment to field bottom.
5th, after field desalination, before the crops such as rice cultivation, in order to improve soil texture, increase fertility and increase soil is saturating
1 ton every mu of soil improvement acid-sludge is uniformly spread fertilizer over the fields on gas, field top layer, and the acid ingredient of acid-sludge can also reduce the PH of salt affected soil
Value.Other cultivation steps cultivate essentially identical with common rice.This block marine solonchak first season rice cultivation, average yield per mu
510kg, realizes 370.77 yuan of average mu benefit.
Claims (9)
1. a kind of coastal saline-alkali soil cultivating layer quick desalination method, it is characterised in that：Using freshwater resources, standard is carried out first
Change field construction, then carry out mechanized operation, recycle freshwater resources to make the arable layer salinity in 0-20 centimetres of coastal saline-alkali soil
0.3% is less than in 10-30 days salt content, coordinates rich water to plan strategies for, coastal saline-alkali soil is normally cultivated and is harvested crops.
2. coastal saline-alkali soil cultivating according to claim 1 layer quick desalination method, it is characterised in that：The fresh water money
Source includes surface river water, lake water and well water.
3. coastal saline-alkali soil cultivating according to claim 1 layer quick desalination method, it is characterised in that：The standardization
Field building method is：0.4 to 0.6 meter of width of the channel of water inlet, deep 0.4 to 0.6 meter, canal bottom is not less than field basic side；Drainage ditch with
50-200 meters of inlet channel spacing, canal face is wide 2 meters, 1 meter of canal bottom width, and canal is deep 1 to 1.5 meter；Per 50- between inlet channel and drainage ditch
200 meters are laterally built a ridge, and ridge is high 0.3 to 0.5 meter, wide 0.4 to 0.6 meter, form long 50-200 meters, wide 50-200 meters
Basic field；Basic field or so water channel disposes L-shaped culvert pipe in relative position, and culvert pipe is 0.3 meter of PVC plastic expects pipe of diameter, is used
In water inlet and draining.
4. coastal saline-alkali soil cultivating according to claim 3 layer quick desalination method, it is characterised in that：The drainage ditch
With 50-100 meters of inlet channel spacing, a ridge, formation 50- long are laterally built between inlet channel and drainage ditch per 50-100 meter
100 meters, basic field wide 50-100 meters.
5. coastal saline-alkali soil cultivating according to claim 4 layer quick desalination method, it is characterised in that：Drainage ditch with enter
50 meters of water channel spacing, a ridge is laterally built for every 50 meters between inlet channel and drainage ditch, forms long 50 meters, 50 meters wide basic
Field.
6. coastal saline-alkali soil cultivating according to claim 1 layer quick desalination method, it is characterised in that：Mechanization is grasped
Make, including plough, sun the earth which has been ploughed up, soaking, water rotation, heavy slurry and 6 basic steps of salt discharge, it is specific as follows：
（1）Plough and require 0.2 meter of depth, full Tagayasu Den turns over and do not stay dead angle；
（2）The time sun the earth which has been ploughed up according to weather condition, 2-3 days, in case of rainy weather skips this step；
（3）To flood 0.1 to 0.2 meter of field surface, soak time length is 1 to 2 day to water consumption for immersion, is contracted according to actual conditions
Short soak time, or cancel this step；
（4）Water rotation step uses agricultural rotary tiller, and to flood 0.05 meter to 0.1 meter of field surface, water revolves depth to water rotation water consumption
0.1 to 0.15 meter；
（5）Heavy slurry step staticly settles mud link for necessary after water rotary tillage, stands heavy slurry time span 1 to 2 day；
（6）Salt discharge step is the salt solution in field of draining after after muddy mud sediment to field bottom.
7. coastal saline-alkali soil cultivating according to claim 1 layer quick desalination method, it is characterised in that：Field desalination
Afterwards, before rice cultivation, 1 ton every mu of acid-sludge organic fertilizer is spread fertilizer over the fields on field top layer, and other cultivation steps are identical with common rice cultivation.
8. coastal saline-alkali soil cultivating layer quick desalination method according to claim 4, is further characterized in that：When（1）Plough
Turn over,（2）Sun the earth which has been ploughed up,（3）Immersion,（4）Water rotation,（5）Heavy slurry and（6）When 6 steps of salt discharge are completed one time, topsoil salt content
When not reaching tillage requirements, repeat（1）Extremely（6）Step.
9. the application of the coastal saline-alkali soil cultivating layer quick desalination method described in claim 1.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108112294A (en) * | 2017-12-23 | 2018-06-05 | 广东粤壮园林建设有限公司 | A kind of saline and alkali land improvement method |
| CN110073756A (en) * | 2019-06-03 | 2019-08-02 | 宁波市农业科学研究院 | A kind of beach newly encloses tideland for cultivation the efficient modification method of farmland soil |
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| CN110771300A (en) * | 2019-12-21 | 2020-02-11 | 盐城师范学院 | Three-in-one seed removal integrated cultivation method for heavy saline soil on coastal mudflat |
| CN111742636A (en) * | 2020-05-30 | 2020-10-09 | 杭州聚和土地规划设计有限公司 | Salt washing treatment system and method for salt pan |
| CN114667819A (en) * | 2022-04-24 | 2022-06-28 | 中国科学院东北地理与农业生态研究所 | Improvement method for removing slurry of soda saline-alkali rice field and application thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108112294A (en) * | 2017-12-23 | 2018-06-05 | 广东粤壮园林建设有限公司 | A kind of saline and alkali land improvement method |
| CN110073756A (en) * | 2019-06-03 | 2019-08-02 | 宁波市农业科学研究院 | A kind of beach newly encloses tideland for cultivation the efficient modification method of farmland soil |
| CN110122229A (en) * | 2019-06-11 | 2019-08-16 | 江苏省沿海开发(东台)有限公司 | A kind of direct sowing of rice field planting method suitable for strand shallow lake slurry type aleuritic texture salt-soda soil |
| CN110771300A (en) * | 2019-12-21 | 2020-02-11 | 盐城师范学院 | Three-in-one seed removal integrated cultivation method for heavy saline soil on coastal mudflat |
| CN110771300B (en) * | 2019-12-21 | 2022-06-03 | 盐城师范学院 | Three-in-one seed removal integrated cultivation method for heavy saline soil on coastal mudflat |
| CN111742636A (en) * | 2020-05-30 | 2020-10-09 | 杭州聚和土地规划设计有限公司 | Salt washing treatment system and method for salt pan |
| CN114667819A (en) * | 2022-04-24 | 2022-06-28 | 中国科学院东北地理与农业生态研究所 | Improvement method for removing slurry of soda saline-alkali rice field and application thereof |
| CN114667819B (en) * | 2022-04-24 | 2022-09-02 | 中国科学院东北地理与农业生态研究所 | Improvement method for removing slurry of soda saline-alkali rice field and application thereof |
| US11707017B1 (en) | 2022-04-24 | 2023-07-25 | Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences | Method for improving soda saline-alkaline paddy fields by stirring and discharging slurry and application thereof |
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