CN108496705A - A method of consolidating salinized soil side slope using non-earth grass blanket - Google Patents

A method of consolidating salinized soil side slope using non-earth grass blanket Download PDF

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CN108496705A
CN108496705A CN201810311287.8A CN201810311287A CN108496705A CN 108496705 A CN108496705 A CN 108496705A CN 201810311287 A CN201810311287 A CN 201810311287A CN 108496705 A CN108496705 A CN 108496705A
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grass
blanket
slope
soil
earth
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CN108496705B (en
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娄燕宏
诸葛玉平
陈为峰
宋付朋
王会
韩飞
何伟
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Shandong Agricultural University
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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
    • 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
    • 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
    • A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
    • A01G24/20—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material
    • A01G24/22—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material containing plant material
    • 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
    • A01G7/00—Botany in general
    • A01G7/06—Treatment of growing trees or plants, e.g. for preventing decay of wood, for tingeing flowers or wood, for prolonging the life of plants
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L31/00—Edible extracts or preparations of fungi; Preparation or treatment thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/22—Improving land use; Improving water use or availability; Controlling erosion

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Botany (AREA)
  • Forests & Forestry (AREA)
  • Ecology (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Mechanical Engineering (AREA)
  • Soil Sciences (AREA)
  • Nutrition Science (AREA)
  • Mycology (AREA)
  • Microbiology (AREA)
  • Wood Science & Technology (AREA)
  • Cultivation Of Plants (AREA)
  • Pretreatment Of Seeds And Plants (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

The invention discloses a kind of methods consolidating salinized soil side slope using non-earth grass blanket, this method can effectively cover salinized soil slope surface exposed earth's surface the short time using the stronger mixed sowing of turf grass production non-earth grass blanket of salt tolerance in conjunction with slope surface control salt treatment, direct Cheng Ping realizes ecological revetment.Turfgrass has very strong soil and slope protection ability, and saline-alkali tolerant, drought-resistant, barren-resistant, the lawn of formation not only can inhibit dust, rainfall can also be slowed down to wash away slope surface, consolidate salinized soil side slope, landscape effect is good, it can carry and slightly herd, have both and beautify the environment and ecological management double benefit.

Description

A method of consolidating salinized soil side slope using non-earth grass blanket
Technical field
The present invention relates to Saline-alkali Field Controls and ecological restoration technical field, and in particular to a kind of to consolidate salt using non-earth grass blanket The method of stain soil side slope.
Background technology
The soil salinization is the main adverse circumstance of limitation crop production in global range, the whole world about 9.5 hundred million hm2Soil By saliferous threat, account for about the 5% of world arable land, especially with increasingly sharpening for global warming trend, Mid-low latitude The soil salinization problem in area becomes clear day by day.
At present both at home and abroad to the improvement of soil salinization improvement be substantially engineering measure, tillage control measure, chemical measure or Biological control measure etc., although also achieving certain effect, most achievements focus primarily upon the improvement in smooth salt-soda soil It administers, and it is less for the firm research of the ecology of farmland ditch side slope.Huanghe delta salt affected soil is that the Yellow River is impacted to be formed, at Soil is young, and soil texture is not sufficiently stable, and farmland ditch side slope is easily caved in siltation, is increased river and is managed and protected cost, is also unfavorable for salt It improves to alkali, therefore technology is consolidated there is an urgent need for building quickly saline and alkaline farmland ditch slope ecological.
Invention content
Existing many deficiencies for the above-mentioned prior art, it is firm using non-earth grass blanket that the object of the present invention is to provide a kind of The method of salinized soil side slope, this method select salt tolerant season type and cold-season turfgrass mixed seeding, and plantation is in by decomposed zymophyte Processing reed straw made of in biological organic fertilizer, in conjunction with soil improvement, careless blanket is directly layed in the exposed slope of salinized soil Face solves the technical bottlenecks such as slope protection plant seeds germination percentage is low, survival rate is low, primary growth is slow, realizes salt marsh slight slope The quick ecological restoration in face for the saline and alkaline farmland ditch side slope of reinforcing, prevention soil and water loss, is improved the ecological environment, and abundant The plants landscape of salt-soda soil farmland ditch side slope has great importance.
To achieve the above object, the present invention adopts the following technical scheme that：
A method of salinized soil side slope being consolidated using non-earth grass blanket, is included the following steps：
(1) non-earth grass blanket planting：Non-woven fabrics is laid on plastic cloth, Bermuda grass grass blade is spread on non-woven fabrics, is then covered The cultivation matrix for covering 5-8cm, broadcasts sowing rye grass and tall fescue seed on cultivation matrix, covers 0.5-1cm cultivation matrixes, irrigate, Fertilising, trimming, until lawn Cheng Ping；
(2) sloping surface arrangement：Slope surface is modified, using coating slow-release or control-release fertilizer, compounding application ardealite, ploughed depth 5-10cm, Cover husky 3-5cm in surface layer；
(3) careless blanket is laid with：The non-earth grass blanket of step (1) planting is cut by slope surface width, is vertically laid with, and solid It is fixed；
(4) cultivation management：Reinforce water management, few volume, after careless blanket is laid with January, in conjunction with brackish water irrigation, In due course top dressing.
Preferably, in step (1), the Bermuda grass, rye grass and Festuca Arundinacea are extremely salt-tolerant kind, are resistant to respectively 2.0%, the salt stress of 1.2% and 1.5% or less salinity.More preferably, the kind of the Bermuda grass is WBD482, rye The kind of grass is PI632510, and the kind of Festuca Arundinacea is to like auspicious No. 3.
Preferably, in step (1), the cultivation matrix is prepared by the following method：
Reed straw is crushed, watered, permeated with water, until water content is 55-65%, is inoculated with organic matter decomposing inoculant, heap Set fermentation 60 days.
Preferably, in step (1), the dosage of Bermuda grass grass blade is：It is 1 by with nonwoven cloth area ratio:10 ratio is spread on On non-woven fabrics, the dosage of ryegrass seed is 15g/m2, the dosage of tall fescue seed is 20g/m2。
Preferably, it in step (1), is every other day irrigated once, with wet within first week after broadcasting sowing rye grass and tall fescue seed Profit 5.5-9cm cultivation matrixes are advisable；Start to cut grass, height for the stubble left 7cm for the first time when natural plant height 10cm；It applies within every 15 days later Urea, dosage are 3.5kg/ mus.
Preferably, in step (1), the thickness of the plastic cloth is more than 0.02cm.
Preferably, in step (2), slope surface is modified, soil block grain size≤1cm in 5cm soil layers is made.
Preferably, in step (2), the dosage of coating slow-release or control-release fertilizer is 13.0kg/ mus, and the dosage of ardealite is 0.3kg/ m2。
Preferably, in step (2), it is 0.25-0.5mm that husky sand grain size is covered on surface layer.
Preferably, in step (3), slope surface is irrigated in careless blanket laying the previous day, soaks 0-10cm soil layers.
Preferably, it is in that 45° angle is inserted into fixation upwards with throwaway chopsticks in step (3).
Preferably, in step (4), the salinity of brackish water is less than 4.5g/L；The ratio of brackish water and the fresh water irrigation frequency It is 1:2.
Further, method of the invention is particularly suitable for the firm of Delta Region of The Yellow River salinized soil side slope.
Beneficial effects of the present invention：
1. quick ecological bank protection：Grass blanket using the present invention carries out ecological revetment, can realize that quickly covering for slope surface is green, solve The technical bottlenecks such as slope protection plant seeds of having determined germination percentage is low, survival rate is low, primary growth is slow；
2. Vulnerable Ecological restores：Huanghe delta salt affected soil is that the Yellow River is impacted to be formed, and young at soil, soil texture is inadequate Stablize, farmland ditch side slope is easily caved in siltation, ecological environment frailty, side slope is consolidated using the non-earth grass blanket of the present invention, conducive to crisp Weak ecological recovery.
3. landscape effect is good, solid-holding capacity is strong：The present invention is using season type grass Bermuda grass and cool-season grasses rye grass and height Fescue grass mixed seeding, Prolong green period enhance landscape effect；By the root system soil and slope protection of turfgrass prosperity, prevent slope surface from caving in siltation River.
4. agricultural wastes recycling：Organic fertilizer is made as lawn base in the reed straw fermentation of salt-soda soil plantation Matter, not only solves the recycling problem of agricultural wastes, and for control salt, salt reduction with preferable effect, With environment and economical effects.
Specific implementation mode
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field The identical meanings of understanding.
As background technology part is introduced, Huanghe delta salt affected soil is that the Yellow River is impacted to be formed, soil young at soil Earth structure is not sufficiently stable, and farmland ditch side slope is easily caved in siltation, is increased river and is managed and protected cost, is also unfavorable for alkaline land improving. Saline-alkali property for the Huanghe delta and side slope soil feature, the present invention screens suitable bank protection herbaceous plant, in conjunction with saline and alkaline The utilization of waste as resource on ground produces salt tolerant non-earth grass blanket, and breakthrough slope protection plant seeds germination percentage is low, survival rate is low, initial stage The technical bottlenecks such as slow-growing are right in conjunction with the method that the straight irrigation technology of brackish water, research and development consolidate salinized soil side slope using non-earth grass blanket In reinforcing saline and alkaline farmland ditch side slope, prevention soil and water loss, improve the ecological environment and abundant salt-soda soil farmland ditch side slope Plants landscape has great importance.
In one embodiment of the present invention, the method for consolidating salinized soil side slope using non-earth grass blanket provided, tool Steps are as follows for body：
1. non-earth grass blanket planting：
Grass seed selection by Salt Tolerance identification Bermuda grass, rye grass, Festuca Arundinacea salt-enduring cultivars, be able to be resistant to 2.0%, 1.2%, 1.5% salting liquid Stress treatment；Reed is crushed and is fermented 60 days after being followed by kind of organic matter decomposing inoculant, is made Organic fertilizer is obtained, as cultivation matrix；By non-woven fabrics (long fibre, 12g/m2) being directly laid on thick matter plastic cloth, (thickness is more than On 0.02cm), by Bermuda grass grass blade according to 1:The ratio of 10 (area ratios) is spread on non-woven fabrics (width 1m), and then covering is planted Matrix 5-8cm is trained, then broadcasts sowing rye grass and tall fescue seed, application rate is respectively 15g/m2、20g/m2, cover 0.5-1cm cultivations Matrix；Start to cut grass for the first time when natural plant height 10cm, height for the stubble left 7cm is trimmed by 1/3 principle in due course later；It A urea is applied within every 15 days afterwards, and dosage is 3.5kg/ mus, until Cheng Ping.
Cultivation matrix is very crucial for the planting effect of non-earth grass blanket, and the present invention for the first time plants salt-soda soil Reed straw fermentation organic fertilizer is made as cultivation matrix, not only solve the recycling problem of agricultural wastes, and And for control salt, salt reduction with preferable effect.In addition, cultivation matrix thickness influences whether the survival rate of bank protection grass seeds, The cladding thickness of prior art mesostroma is generally 2-4cm, for improve it is saline and alkaline under the conditions of survival rate, the present invention is by cultivation matrix Thickness be set as 5-8cm, effectively increase the survival rate of bank protection grass seeds.
The present invention also by the way of by cool-season grasses and season type grass mixed seeding, effectively extends the green phase；In addition, of the invention Also by the optimum choice of cultivation matrix cladding thickness, stress of the Saline Alkali Stress to plant is alleviated, reduces into blanket and is taken Between.
2. sloping surface arrangement
Slope surface is modified, soil block grain size≤1cm in 5cm soil layers；It uniformly spreads fertilizer over the fields coating and delays Controlled Release Nitrogen Fertilizer (25:15:6), dosage It is 13.0kg/ mus, ardealite 0.3kg/m2；With miniature rotary cultivator rotary tillage 5-10cm；Husky 3-5cm is covered on surface layer, and sand is husky in selecting, Grain size is 0.25-0.5mm.
Present invention compounding application ardealite when application coating delays Controlled Release Nitrogen Fertilizer, it is therefore an objective to improve salt-soda soil, reduce Salinity.Also investigation is optimized to the amount of application of ardealite in the present invention, as a result, it has been found that, the amount of application of ardealite is 0.3kg/m2 When can obtain optimal alkaline land improving effect.
The present invention has also carried out surface layer after Soil Slope rotary tillage and has covered sand, and specifically defines and cover husky sand grain size, Capillary can be cut off in this way, inhibit the accumulation of salt in the surface soil；It is conducive to slope leveling simultaneously.
3. careless blanket is laid with
Being laid with 6-7 months is advisable, and slope surface, which is shifted to an earlier date 1 day, irrigates, and using sprinkling irrigation mode, avoids generating rainwash, punching Brush slope surface is advisable with moistening 0-10cm soil layers；Careless blanket is cut according to slope surface width, is vertically laid with, seam crossing does not stay Gap is in 45° angle, quincunx distribution insertion fixation upwards with throwaway chopsticks.
4. cultivation management
Within the floor space phase, ensure moisture supply, every other day irrigates once, to moisten 5.5-9cm cultivation matrixes within first week It is advisable, then continuously decreases irrigation frequency；After careless blanket is laid with January, in conjunction with brackish water (salinity<4.5g/L) irrigate, it is micro- Salt water and fresh water irrigation frequency ratio are 1:2；In due course top dressing, is advisable with slow-release or control-release fertilizer, and dosage is calculated with 2.5-4.0kgN/ mus.
To sum up, for the saline-alkali property of the Huanghe delta and side slope soil feature, the present invention screens suitable bank protection draft Plant, using Bermuda grass, rye grass and Festuca Arundinacea with excellent salt-tolerant trait as bank protection herbaceous plant；In conjunction with the useless of salt-soda soil Gurry-reed straw, fermentation is as cultivation matrix after being crushed, for producing salt tolerant non-earth grass blanket.Side using the present invention Method can break through the technical bottlenecks such as slope protection plant seeds germination percentage is low, survival rate is low, primary growth is slow, directly be filled in conjunction with brackish water Technology develops the method for consolidating salinized soil side slope using non-earth grass blanket, for reinforcing saline and alkaline farmland ditch side slope, prevention water and soil It is lost in, improves the ecological environment and the plants landscape of abundant salt-soda soil farmland ditch side slope has great importance.
In order to enable those skilled in the art can clearly understand the technical solution of the application, below with reference to tool The technical solution of the application is described in detail in the embodiment of body.
The test material that test material is this field routine is not specifically described used in the embodiment of the present invention, It can be commercially available by commercial channel.
Embodiment 1：The screening of salt tolerant grass seeds
Gradient concentration salt stress processing is carried out under greenhouse controlled condition, carries out Salt-Tolerance Identification.
It chooses full rye grass or tall fescue seed is seeded in plastic cup (high 13.6cm, upper bore 9.0cm, lower relative aperture 5.9cm removes bottom, then wraps up bottom with gauze, and cultivation matrix is sand) in, or by Bermuda grass grass blade cuttage in plastic cup In.Plastic cup is positioned in turnover box and is placed in greenhouse, preculture is carried out with 1/2Hoagland nutrient solutions.Per box installed 42L battalion Nutrient solution, changes weekly nutrient solution once and daily with ventilation pump ventilation 12h, daily see looks into liquid level, and moisture is replenished in time, and waits for Start salt stress processing after adapting to culture 5d, is control with salt-free solution using gradient concentration salt stress concentration for the treatment of, with Machine block design, four repetitions.Measure chlorophyll, electric osmose gesture, growth rate, Photochemical Efficiency (Fv/Fm), activities of antioxidant enzymes Etc. indexs.Using Subordinate Function in fuzzy mathematics, overall merit Bermuda grass, rye grass and Festuca Arundinacea germ plasm resource is resistance to respectively Salt filters out the kind of extremely salt-tolerant.
The kind of the Bermuda grass for the pole salt tolerant that finishing screen is selected is WBD482, and the kind of rye grass is PI632510, Gao Yang The kind of thatch is to like auspicious No. 3.
Embodiment 2：
1, the biofermentation of reed straw：
Reed straw is crushed into (length 1-3cm), watered, permeated (water content 55-65%) with water, inoculation organic materials is rotten Ripe dose (microorganism fertilizer (2015) faces word (2781) number) banks up fermentation 60 days, waits for that stalk becomes brown or dark brown, hand when wet The softness held is flexible, brittle broken when doing, and organic fertilizer is made.
2, careless blanket production
By the leveling of careless blanket place, compacting, the sundries such as weeds, rubble are rejected, being laid with thick plastic cloth, (thickness is more than 0.02cm wide Spend 1.2m), then by non-woven fabrics (width 1m, long fibre, 12g/m2) be directly laid on thick matter plastic cloth.By Bermuda grass grass blade According to 1:10 ratio (area ratio) is uniformly spread on non-woven fabrics, then covers the organic fertilizer 5-8cm obtained that voluntarily ferments, then Rye grass and Festuca Arundinacea are broadcasted sowing, application rate is respectively 15g/m2、20g/m2, 0.5-1cm cultivation matrixes are covered, watering moistens entire base Matter layer.Hypothallus moistening is kept until germination, then reduces irrigation times；Start to cut grass for the first time when natural plant height 10cm, A urea is applied within every 15 days later, dosage is 3.5kg/ mus, until Cheng Ping.
3, sloping surface arrangement
Slope surface is modified, rejects the sundries such as weeds, stone, it is ensured that soil block grain size≤1cm in 5cm soil layers.Uniformly spread fertilizer over the fields coating Slow Controlled Release Nitrogen Fertilizer (25:15:6) and ardealite, dosage are respectively 13.0kg/ mus and 0.3kg/m2, then revolved with miniature rotary cultivator Plough 5-10cm, smooth slope surface.Middle sand (grain size 0.25-0.5mm) 3-5cm is covered on surface layer, further smooth slope surface.
4, careless blanket is laid with
Slope surface is shifted to an earlier date 1 day to irrigate, using sprinkling irrigation mode, avoids generating rainwash, slope surface is washed away, to moisten 0-10cm Soil layer is advisable.Careless blanket is cut according to slope surface width, is vertically laid with, seam crossing does not interspace, with throwaway chopsticks to Upper be inserted into 45° angle, quincunx distribution is fixed.Watering, rolling make careless blanket be in close contact with slope surface, in the floor space phase, ensure moisture Supply every other day irrigates once, is advisable with moistening 5-8cm cultivation matrixes, then continuously decreases irrigation frequency for first week.Wait for grass After blanket is laid with January, in conjunction with brackish water (salinity<It 4.5g/L) irrigates, brackish water and fresh water irrigation frequency ratio are 1:2；It is suitable When top dressing, be advisable with slow-release or control-release fertilizer, dosage with 2.5-4.0kgN/ mus calculate.
The foregoing is merely the preferred embodiments of the application, are not intended to limit this application, for the skill of this field For art personnel, the application can have various modifications and variations.Within the spirit and principles of this application, any made by repair Change, equivalent replacement, improvement etc., should be included within the protection domain of the application.

Claims (10)

1. a kind of method consolidating salinized soil side slope using non-earth grass blanket, which is characterized in that include the following steps：
(1) non-earth grass blanket planting：Non-woven fabrics is laid on plastic cloth, Bermuda grass grass blade is spread on non-woven fabrics, 5- is then covered The cultivation matrix of 8cm, broadcasts sowing rye grass and tall fescue seed on cultivation matrix, covers cultivation matrix 0.5-1cm, irrigate, apply fertilizer, Trimming, until lawn Cheng Ping；
(2) sloping surface arrangement：Slope surface is modified, using coating slow-release or control-release fertilizer, compounding application ardealite, rotary tillage depth 5-10cm, surface layer Cover husky 3-5cm；
(3) careless blanket is laid with：The non-earth grass blanket of step (1) planting is cut by slope surface width, is vertically laid with, and fixed；
(4) cultivation management：Careless blanket reinforces water management after being laid with, few volume, after careless blanket is laid with January, in conjunction with brackish water It irrigates, in due course top dressing.
2. according to the method described in claim 1, it is characterized in that, the Bermuda grass, rye grass and Festuca Arundinacea are extremely resistance to Salt kind is resistant to the salt stress of 2.0%, 1.2% and 1.5% or less salinity respectively；Preferably, the kind of the Bermuda grass Kind for WBD482, rye grass is PI632510, and the kind of Festuca Arundinacea is to like auspicious No. 3.
3. method according to claim 1 or 2, which is characterized in that in step (1), the dosage of Bermuda grass grass blade is：By with Nonwoven cloth area ratio is 1:10 ratio is spread on non-woven fabrics, and the dosage of ryegrass seed is 15g/m2, the use of tall fescue seed Amount is 20g/m2。
4. according to the method described in claim 1, it is characterized in that, in step (1), the cultivation matrix is prepared by the following method It forms：
Reed straw is crushed, watered, permeated with water, until water content is 55-65%, organic matter decomposing inoculant is inoculated with, banks up hair Ferment 60 days.
5. according to the method described in claim 1, it is characterized in that, in step (1), broadcast sowing after rye grass and tall fescue seed It every other day irrigates once within one week, is advisable with moistening 5.5-9cm cultivation matrixes；Start to cut grass for the first time when natural plant height 10cm, stay Stubble height is 7cm；A urea is applied within every 15 days later, dosage is 3.5kg/ mus.
6. according to the method described in claim 1, it is characterized in that, in step (2), slope surface is modified, soil block grain in 5cm soil layers is made Diameter≤1cm.
7. according to the method described in claim 1, it is characterized in that, in step (2), the dosage of coating slow-release or control-release fertilizer is 13.0kg/ mus, the dosage of ardealite is 0.3kg/m2。
8. according to the method described in claim 1, it is characterized in that, in step (3), slope surface is carried out in careless blanket laying the previous day It irrigates, soaks 0-10cm soil layers.
9. according to the method described in claim 1, it is characterized in that, in step (4), the salinity of brackish water is less than 4.5g/L； The ratio of brackish water and the fresh water irrigation frequency is 1:2.
10. claim 1-9 any one of them method Delta Region of The Yellow River salinized soil side slope it is firm in application.
CN201810311287.8A 2018-04-09 2018-04-09 Method for stabilizing saline soil side slope by utilizing soilless grass blanket Expired - Fee Related CN108496705B (en)

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