CN108966720A - A kind of salt-soda soil four-dimension modification method - Google Patents
A kind of salt-soda soil four-dimension modification method 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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Abstract
This application discloses a kind of salt-soda soil four-dimension modification methods, comprising the following steps: S1, consolidation lay field irrigation and drainage pipe network, sensor, Transmission system, monitoring system；S2, easy means make farmyard manure by oneself, the culture fertility in such a way that green is sustainable；S3, application soil orientation adjustment agent, are improved for soil particular problem；S4, salt alkaline tolerance rice plantation, biological modification are combined with agronomic measures improvement.The present invention is by culture fertility and uses the agent of soil orientation adjustment, realizes that the comprehensive of soil economical character improves comprehensively, realizes that low-yield land becomes high-yield field, unused land becomes arable land.By the integrated application of four-dimensional improved method, it was not only able to achieve the comprehensive improvement of soil alkaline degree, but also crops economic flow rate can be obtained.
Description
Technical field
The present invention relates to soil technical field of land improvement, and in particular to a kind of salt-soda soil four-dimension modification method.
Background technique
2016, world population reached 72.6 hundred million, and current estimated all show that world population will be tens of in future
Year sustainable growth, soil to population to support pressure increasing, more arable lands are needed in worldwide and are supported constantly
The population of growth.
However the sum in soil be substantially it is constant, can only be by being improved to not cultivated soil, with reach can
With the purpose of farming.According to UNESCO and food and agricultural organization's incomplete statistics, the area in whole world salt-soda soil is
9.5438 hundred million hectares, wherein China is 99,130,000 hectares.By the improvement to salt-soda soil, may be implemented to improve soil physical chemistry spy
Property, good growth and development environment is provided for crop, to realize the high-yield and high-efficiency of crop.
Saline-alkali soil is a kind of because salt content is excessive or strong basicity, and the native Gui of " sick ".Salt-soda soil graded index is as follows:
Slight salinization scholar, soil salt content 0.1~0.2%；Moderate salinization soil, soil salt content 0.2~0.4%: severe salinization soil, soil
Earth salt content 0.4~0.6% (most of China with 30 centimetres of soil plough horizons to calculate salt content).Measure another finger in salt-soda soil
Mark is pH value, i.e. pH value, is generally neutrality with 7.5, < 7.0 is subacidity, and > 7.5 is alkalescence.
Soil improvement method mainly has water conservancy improvement, chemical modifying, biological modification and physically improved at present.Various improvement sides
Mode, effect and purpose it is different, but all create good water, salt, fertilizer, compression ring border for plant growth, maintain holding for soil
It is continuous to utilize.
Using Special fertilizer, moderate is effectively improved to slight gardens salt-soda soil, which is to convert salt using ionic adsorption
The resultant force of class, fertile salt balance reduces salt content, reduces pH value, includes sodium ion adsorbent, humic acid, fulvic acid, alkene local soil type at
Inhale the best condensate of salt drop alkali.Moderate saline-alkali soil cooperation widely applies wheat bran to add Special fertilizer, will there is better effect.
Salt-soda soil generally has the characteristics that low temperature, soil is thin, structure is poor.Organic fertilizer decomposes through micro- ox object, converts and forms humus
The buffer capacity of soil can be improved, and can act on forming sodium humate with sodium carbonate, reduces surface soil alkalinity.Sodium humate can also pierce
Swash plant growth, enhances saline-alkaline tolerance.Humus can promote crumb structure to be formed, so that porosity be made to increase, water penetration increases
By force, be conducive to salt leaching, inhibit the accumulation of salt in the surface soil.Organic matter generates a large amount of organic acids in decomposable process, on the one hand can neutralize soil
Earth alkalinity, on the other hand can accelerate nutrient to decompose, and promote effect Nutrient Transformation late, improve P availability.Therefore, applying organic manure
Material is improvement salt-soda soil, the important measures increase soil fertility.
There are mainly of two types for saline-alkali soil, a kind of low level land shape being distributed across rivers and lakes terrace, refreshing flute profile, beach
Depression shape has secondary property；Second of saline-alkali soil belongs to around ancient times and modern age salt lake and stratum saliferous is formed by soil
The violent salification of earth has primary property.Saline-alkali soil formation is that nature and human factor are coefficient as a result, studies have shown that soil
Earth matrix, quality, landform, neotectonic movement, hydrologic condition and human activity etc. are an important factor for influencing saline-alkali soil formation.
Salt-soda soil briefly, can be divided into light salt-soda soil, moderate saline-alkali soil and heavy saline using in process.Gently
Salt-soda soil refers to its emergence rate in 70%-80%, its salt content is below 3/1000ths；Heavy saline refers to its salt content
More than 6/1000ths, emergence rate is lower than 50%；This intermediate block is exactly that moderate saline-alkali soil (is indicated are as follows: slight alkaline land pH with pH value
Value are as follows: 7.1-8.5, moderate saline-alkali soil pH value are as follows: 8.5-9.5, heavy salinized ground pH value are as follows: 9.5 or more).
In the prior art, the modification method in salt-soda soil is generally as follows:
1, the desalinization of soil by flooding or leaching.The desalinization of soil by flooding or leaching be exactly water is poured into salt-soda soil, dissolve soil salt, by it is lower seep in topsoil can
Dissolubility is saline and alkaline to be discharged in deep soil or elutes away, and side is penetrated into gutter and excluded.
2, it levels land.Leveling land can make to seep under uniform moisture, improve rainfall leaching salt and irrigate the effect of the desalinization of soil by flooding or leaching, prevent
Soil plaque-like salination.Deep ploughing is ploughed deeply.The distribution situation of salinity in the soil is that surface layer is more, and lower layer is few, can be by ploughing
Salinity is turned upside down to that topsoil is following in topsoil, and the less soil of lower layer's saliferous is translated into surface.The loose arable layer of energy is turned over, is cut
Disconnected soil capillary, weakens soil water evaporation, efficiently controls the soil accumulation of salt in the surface soil.The time that salt-soda soil is turned over be preferably spring and
Autumn.Spring, autumn are the accumulation of salt in the surface soil heavier seasons.Autumn, which ploughs, to be particularly advantageous to kill disease pest ovum, removes weeds, buried root stubble adds
Strong organic matter decomposition and the late release of effect nutrient, so being worth advocating.
3, it rakes the soil level in due course.Rake the soil level can loose surface soil, truncation soil capillary water to earth's surface convey salinity, playing prevents the accumulation of salt in the surface soil
Effect.Raking the soil level will shallowly plough in the spring in due course, rob volt and plough, early autumn ploughing, plough it is dry do not plough it is wet.
4, applying organic manure, rational use of chemical fertilizer.Salt-soda soil generally has the characteristics that low temperature, soil is thin, structure is poor.Organic fertilizer warp
Microorganism decomposition, conversion form humus, can improve the buffer capacity of soil, and can act on forming sodium humate with sodium carbonate,
Reduce surface soil alkalinity.Sodium humate can also stimulate plant growth, enhance saline-alkaline tolerance.Humus can promote crumb structure shape
At so that cell size be made to increase, water penetration enhancing is conducive to salt leaching, inhibits the accumulation of salt in the surface soil.Organic matter generates greatly in decomposable process
Organic acid is measured, surface soil alkalinity on the one hand can be neutralized, on the other hand nutrient can be accelerated to decompose, promotes effect Nutrient Transformation late, improves
P availability.Therefore, applying organic manure material is improvement salt-soda soil, the important measures increase soil fertility.In addition, chemical fertilizer is to changing
Good saline and alkaline effect is also paid attention to by people, and chemical fertilizer promotes plant growth, improve the resistance to of crop to N P and K is increased in soil
Salt power.Application chemical fertilizer can change soil salt composition, inhibit adverse effect of the salt to plant.Inorganic fertilizer can increase and make produce
Amount has more stalk, expands organic fertilizer resource, organic with inorganic rush.Certainly, it to avoid applying alkaline fertilizer when salt-soda soil application chemical fertilizer
Material, such as ammonium hydroxide, ammonium hydrogen carbonate, lime nitrogen, calcium magnesium phosphate, and should be preferably neutral and acidic fertilizier.Compound potassium sulfate fertilizer is
Subacidity fertilizer is suitble to apply on salt-soda soil, and has the good action in improvement salt-soda soil.
The measures such as the existing soil improvement method in China is mainly physically improved, biological modification, chemical modifying, wherein engineering
Improvement is most commonly seen modification method.Engineering improvement fills drainage system as working contents, currently, the row in China to construct
Water system mainly has gutter drainage system, closed drainage system and drainage by shaft wells system, and drainage pattern is used in bare area
Flood irrigation is carried out to crop field, soil moisture is made to reach saturation state, then soil salt is dissolved into water to be formed to be saturated to infiltrate and be discharged into
Though such draining can effectively exclude saline and alkaline in soil, there are shortcomings in gutter to achieve the purpose that salt discharge,
As intelligence degree is low, irrigate when need manual patrol, manual control irrigation system, waste a large amount of manpower financial capacity, furthermore not
The irrigation scheme that optimization can be formed, causes vast resources to waste.
However, the Crack cause in salt-soda soil includes climate reasons, geographical reason, hydrology-water quality reason, cultivation management reason,
Due to its Crack cause complexity, easily caused repeatedly by single ameliorative measure, it is difficult to reach preferable improvement purpose, because
This, which reasonably develops and utilizes saline and alkaline soil resource, should use the ameliorative measure of comprehensive treatment, by engineering measure, agronomic measures, biology
Measure and chemical measure etc. combine, adaptation to local conditions, comprehensive treatment, realize the system improvement and efficiently of saline and alkaline soil resource
It utilizes.
Summary of the invention
Technical problem to be solved by the present invention lies in provide a kind of salt-soda soil four-dimension modification method.For existing skill
Alkaline land improving intelligence degree present in art is low, needs manual patrol, manual control irrigation system when irrigating, and waste is a large amount of
Manpower financial capacity comb is filled by field the problems such as furthermore cannot forming the irrigation scheme of optimization, vast resources is caused to waste
The laying of the infrastructure such as net, sensor, Transmission system, detection system integrally realizes that digitlization, intelligence are established for farmland
Basis.By culture fertility and the agent of soil orientation adjustment is used, realizes that the comprehensive of soil economical character improves comprehensively, realizes low yield
Field becomes high-yield field, unused land becomes arable land.By the integrated application of four-dimensional improved method, it was both able to achieve the synthesis of soil alkaline degree
Improvement, and crops economic flow rate can be obtained.
In order to solve the above technical problems, the present invention provides a kind of salt-soda soil four-dimension modification methods, comprising the following steps:
S1, consolidation lay field irrigation and drainage pipe network, sensor, Transmission system, monitoring system；
S2, easy means make farmyard manure by oneself, the culture fertility in such a way that green is sustainable；
S3, application soil orientation adjustment agent, are improved for soil particular problem；
S4, salt alkaline tolerance rice plantation, biological modification are combined with agronomic measures improvement.
The step S1 further comprises: (1-1) bores well of pouring water, builds raised fields, is embedded by well, ditch, canal supplementary measures
Hidden pipe lays field irrigation and drainage pipe network；Hidden pipe is being arranged every the bottom end of drenching layer every drenching layer in setting under planting soil layer.
The step S1 further comprises: (1-2) divides field, lays field sensors, monitoring system.
The step S1 further comprises: (1-3) lays a set of service centre using a project as basic unit.
The step S2 further comprises: (2-1) spice: rice straw is crushed, and makes stalk such as wheat berry size, will be new
Freshly-slaughtered poultry excrement, pig manure, cow dung blend in proportion, adjust humidity with straw powder, straw decomposing inoculant and calcium superphosphate is added.
The step S2 further comprises: the material of mixing (2-2) fermentation: being piled 0.8-1.2 meters high, width 1.2-1.8
The compost heap of rice, it is several to get through stomata, plastic covering film fermentation.
The step S3 further comprises: (3-1) soil sample detection: snakelike sample point is laid in field, with earth boring auger pair
0-20cm soil layer is sampled, and each sample point sample uses quartering to keep sample 1kg after mixing, after air-drying at shady and cool ventilation
It is sieved to be measured.
The step S3 further comprises: (3-2) is according to soil testing as a result, designing modulators formula and usage mode.
The step S4 further comprises: the rice seedling bed (4-1) processing: selection fertile soil is loose, draining is poured water conveniently, leeward
Plot on the sunny side, mu apply homemade 5 side of farmyard manure, and rice seedling bed is carried out after fertilising and turns over, flatten, and sow preceding 1~2 water logging in the sky
Field, and levelling bed surface.
The step S4 further comprises: (4-2) seed treatment: selecting japonica rice or the rice variety of salt tolerant 6-10 ‰, tool
Body is selected according to weather conditions and plantation demand.
Beneficial effect of the present invention includes:
1. the comprehensive treatment improvement to salt-soda soil is realized, compared to other single sides by the application of four-dimensional improved method
The soil improvement method of formula, effect become apparent.
It is that farmland is whole 2. filling the laying of the infrastructure such as comb net, sensor, Transmission system, detection system by field
Body realizes that digitlization, intelligence are laid a good foundation.
3. by culture fertility and using the agent of soil orientation adjustment, realize that the comprehensive of soil economical character improves comprehensively, it is real
Existing low-yield land becomes high-yield field, unused land becomes arable land.
4. being not only able to achieve the comprehensive improvement of soil alkaline degree, but also agriculture can be obtained by the integrated application of four-dimensional improved method
Crop economy yield.
5. this method fully takes into account the current situation of current proper-scale land operation, and reserved for land development at a specified future date
Space.
Specific embodiment
The present invention is described in detail below with reference to embodiment.To keep the objectives, technical solutions, and advantages of the present invention clearer, bright
Really, the present invention is described in more detail below, but the invention is not limited to these embodiments.
In one embodiment of this invention, a kind of salt-soda soil four-dimension modification method is provided, comprising the following steps:
S1, consolidation lay field irrigation and drainage pipe network, sensor, Transmission system, monitoring system；
S2, easy means make farmyard manure by oneself, the culture fertility in such a way that green is sustainable；
S3, application soil orientation adjustment agent, are improved for soil particular problem；
S4, salt alkaline tolerance rice plantation, biological modification are combined with agronomic measures improvement.
The step S1 further comprises: (1-1) bores well of pouring water, builds raised fields, is embedded by well, ditch, canal supplementary measures
Hidden pipe lays field irrigation and drainage pipe network；Hidden pipe is being arranged every the bottom end of drenching layer every drenching layer in setting under planting soil layer.
The step S1 further comprises: (1-2) divides field, lays field sensors, monitoring system.
The step S1 further comprises: (1-3) lays a set of service centre using a project as basic unit.
The step S2 further comprises: (2-1) spice: rice straw is crushed, and makes stalk such as wheat berry size, will be new
Freshly-slaughtered poultry excrement, pig manure, cow dung blend in proportion, adjust humidity with straw powder, straw decomposing inoculant and calcium superphosphate is added.
The step S2 further comprises: the material of mixing (2-2) fermentation: being piled 0.8-1.2 meters high, width 1.2-1.8
The compost heap of rice, it is several to get through stomata, plastic covering film fermentation.
The step S3 further comprises: (3-1) soil sample detection: snakelike sample point is laid in field, with earth boring auger pair
0-20cm soil layer is sampled, and each sample point sample uses quartering to keep sample 1kg after mixing, after air-drying at shady and cool ventilation
It is sieved to be measured.
The step S3 further comprises: (3-2) is according to soil testing as a result, designing modulators formula and usage mode.
The step S4 further comprises: the rice seedling bed (4-1) processing: selection fertile soil is loose, draining is poured water conveniently, leeward
Plot on the sunny side, mu apply homemade 5 side of farmyard manure, and rice seedling bed is carried out after fertilising and turns over, flatten, and sow preceding 1~2 water logging in the sky
Field, and levelling bed surface.
The step S4 further comprises: (4-2) seed treatment: selecting japonica rice or the rice variety of salt tolerant 6-10 ‰, tool
Body is selected according to weather conditions and plantation demand.
In another embodiment of the invention, a kind of salt-soda soil four-dimension modification method is provided, comprising the following steps:
1. field irrigation and drainage pipe network, sensor, Transmission system, monitoring system are laid in consolidation.
(1) by supplementary measures such as well, ditch, canals, bore well of pouring water, build raised fields, embedded hidden pipe etc., lay field irrigation and drainage pipes
Net reaches appropriate, draining timely effect of pouring water.Hidden pipe is being arranged every the bottom end of drenching layer every drenching layer in setting under planting soil layer,
Water with salt is entered in hidden pipe by planting soil layer and every drenching layer by the water-filtering micropore on hidden pipe, is finally arranged from hidden pipe to people
Work sump, salt water is recycled after desalting processing in artificial sump.
(2) field is divided, field sensors, monitoring system are laid.Using 1 mu of ground as basic unit, underground water thermohaline is laid
3 groups of sensor, laying depth is respectively 10cm, 20cm, 30cm.With 100 mu for basic unit, laying field climate monitoring station,
Crop condition monitoring station is transmitted to service centre with 4G signal.
(3) using a project as basic unit, a set of service centre is laid.Service centre configures basic software and hardware facilities,
It realizes the timely analysis to monitoring data, show, it is automatic/to manually adjust the situation of field conditions and weather etc., realize whole supervise
It surveys and automates.
2. easy means make farmyard manure by oneself, the culture fertility in such a way that green is sustainable.
(1) spice.Rice straw is crushed, makes stalk such as wheat berry size, by fresh chicken manure, pig manure, cow dung according to 2: 2
: 1 ratio blending adjusts humidity with straw powder, reaches material moisture and hold pockets of degree, according to stalk usage amount,
Straw decomposing inoculant and calcium superphosphate is added.
(2) it ferments.The compost heap that the material of mixing is piled to high 1 meter or so, wide 1.5 meters or so, it is several to get through stomata, covers
Lid plastics film fermentation.Fermentation period cooperates weather and Rice Cropping period, ferments in spring.
3. applying the agent of soil orientation adjustment, improved for soil particular problem
(1) soil sample detects.Snakelike sample point is laid in field, 0-20cm soil layer is sampled with earth boring auger, is respectively taken
Sampling point sample uses quartering to keep sample 1kg after mixing, is sieved after air-drying at shady and cool ventilation to be measured.The main needle of soil samples and detecting
To pH, total salt quantity, eight- ions, available nutrient, CEC, wherein pH is measured according to soil ratio 1: 10 using thunder magnetic PHS-3C acidity
It is fixed；Total salt uses oven drying method, weighs using universal electric furnace calcination and with 105 degree of drying of baking oven；Eight- ions use chemistry titration
Method；Available nitrogen uses alkaline hydrolysis diffusion method；Rapid available phosphorus uses molybdenum antimony resistance colorimetric method；Available potassium uses flare photometer；CEC is used
Ammonium acetate is centrifuged exchange process.The average value that each index is measured with 3 times indicates measurement result.
(2) according to soil testing as a result, designing modulators formula and usage mode.This regulator main component is poly- amino
Acid fermentation stoste, cooperation citric acid, boric acid and other nutrients, for soil salt and nutrient situation, using nutrient balance method into
Row proportion calculates.For the nutrient uptake feature of institute's rice cultivation, emphasis is laid out period of seedling establishment, young spike development phase, pustulation period.
4. salt alkaline tolerance rice is planted, biological modification is combined with agronomic measures improvement.
(1) rice seedling bed is handled: selection fertile soil is loose, draining is poured water conveniently, leeward plot on the sunny side, and mu is applied according to upper
Homemade 5 side of farmyard manure of method is stated, rice seedling bed is carried out after fertilising and turns over, flatten, sows preceding 1~2 water logging in the sky field, and levelling bed
Face.
(2) seed treatment: selecting japonica rice or the rice variety of salt tolerant 8 ‰, with specific reference to weather conditions and plantation demand choosing
With.After kind is selected, the seed of full grains is selected, is soaked seed 12-24 hours with 0.05% carbendazim medical fluid, is rinsed with clear water dry
After net, soaked seed 2-3 days with normal-temperature water, it is primary during which every other day to change water, until sowing seed when 80% or more seed shows money or valuables one carries unintentionally
On to ready rice seedling bed, after sowing, rice seedling bed is covered with plastic film, according to local condition, takes off film ventilation.
(3) crop field is handled: decomposed good self-control farmyard manure is added to big Tanaka, 10 side of mu dosage adds according to native result is surveyed
Enter soil orientation adjustment agent.Rotary tillage, rotary tillage depth are about 40 centimetres, mix well farmyard manure, regulator.Drought leveling, water are whole
It is flat, make plot height difference within 2 centimetres.Before rice transplanting, soaked field of pouring water, mashing.
(4) shoot transplanting equipment: adjustment rice transplanting is mechanical, makes planting density 20cm × 15cm, and every cave is inserted into 2-3 plants.
(5) it field management: according to the monitoring situation of sensor and monitor on field system, is pushed away by the calculating of expert system
It recommends, fills comb net using field and automatic fertilization, application system use Related product.Rice is in tillering stage, and field water is with shallow
Based on water, water layer height is set to be maintained at 3-4cm, the tiller later period should carry out draining dry field, to avoid excessive tiller.Heading stage, field
Between water layer height should be maintained at 6-7cm, prevent to damage to plants caused by sudden drop in temperature, destroy rice grain albumen formed.After heading, field water should be with
2 days shallow water phases, 2 days deep water phases.Shallow water phase field water layer height is 1-2cm, and deep water phase field water layer height is 5-6cm.
Experimental result such as the following table 1:
Four-dimension modification method experimental result in salt-soda soil in 1 embodiment of the present invention of table
| Experimental group | Control group | Basic fertility | |
| Mu water consumption | 600m3 | 800m3 | _ |
| Per mu yield | 750.12kg | 609.92kg | _ |
| pH | 7.92 | 8.51 | 8.66 |
| Total salt quantity | 2.09g/kg | 2.31g/kg | 2.52g/kg |
| CEC | 86.98mmol/kg | 82.86mol/kg | 80.87mol/kg |
The above is only several embodiments of the present invention, not any type of limitation is done to the present invention, although this hair
It is bright to be disclosed as above with preferred embodiment, however be not intended to limit the invention, any person skilled in the art, it is not taking off
In the range of technical solution of the present invention, a little variation or modification are made using the technology contents of the disclosure above and is equal to
Case study on implementation is imitated, is belonged in technical solution of the present invention protection scope.
Claims (10)
1. a kind of salt-soda soil four-dimension modification method, which comprises the following steps:
S1, consolidation lay field irrigation and drainage pipe network, sensor, Transmission system, monitoring system；
S2, easy means make farmyard manure by oneself, the culture fertility in such a way that green is sustainable；
S3, application soil orientation adjustment agent, are improved for soil particular problem；
S4, salt alkaline tolerance rice plantation, biological modification are combined with agronomic measures improvement.
2. salt-soda soil four-dimension modification method according to claim 1, which is characterized in that the step S1 further comprises: (1-
1) it by well, ditch, canal supplementary measures, bores well of pouring water, build raised fields, embedded hidden pipe, lay field irrigation and drainage pipe network；In planting soil layer
Hidden pipe is being arranged every the bottom end of drenching layer every drenching layer in lower setting.
3. salt-soda soil four-dimension modification method according to claim 1, which is characterized in that the step S1 further comprises: (1-
2) field is divided, field sensors, monitoring system are laid.
4. salt-soda soil four-dimension modification method according to claim 1, which is characterized in that the step S1 further comprises: (1-
3) using a project as basic unit, a set of service centre is laid.
5. salt-soda soil four-dimension modification method according to claim 1, which is characterized in that the step S2 further comprises: (2-
1) spice: rice straw is crushed, and makes stalk such as wheat berry size, fresh chicken manure, pig manure, cow dung are blended in proportion, use straw
Stalk powder adjusts humidity, and straw decomposing inoculant and calcium superphosphate is added.
6. salt-soda soil four-dimension modification method according to claim 1, which is characterized in that the step S2 further comprises: (2-
2) it ferments: the material of mixing is piled to the compost heap of 0.8-1.2 meters high 1.2-1.8 meters of width, it is several to get through stomata, plastic covering
Film fermentation.
7. salt-soda soil four-dimension modification method according to claim 1, which is characterized in that the step S3 further comprises: (3-
1) soil sample detects: laying snakelike sample point in field, is sampled with earth boring auger to 0-20cm soil layer, each sample point sample is mixed
Kept sample 1kg after closing uniformly using quartering, is sieved after being air-dried at shady and cool ventilation to be measured.
8. salt-soda soil four-dimension modification method according to claim 1, which is characterized in that the step S3 further comprises: (3-
2) according to soil testing as a result, designing modulators formula and usage mode.
9. salt-soda soil four-dimension modification method according to claim 1, which is characterized in that the step S4 further comprises: (4-
1) rice seedling bed is handled: selection fertile soil is loose, draining is poured water conveniently, leeward plot on the sunny side, and mu applies homemade farmyard manure 5
Side carries out rice seedling bed and turns over, flattens after fertilising, sow preceding 1~2 water logging in the sky field, and levelling bed surface.
10. salt-soda soil four-dimension modification method according to claim 1, which is characterized in that the step S4 further comprises:
(4-2) seed treatment: selecting japonica rice or the rice variety of salt tolerant 6-10 ‰, selects with specific reference to weather conditions and plantation demand.
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| 本刊记者: "《土壤四维改良法实现规模种植海水稻》", 《农村新技术》 * |
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Application publication date: 20181211 |