CN103636402B - Utilize graft technology in the method for wetland falling zone plantation walnut - Google Patents
Utilize graft technology in the method for wetland falling zone plantation walnut Download PDFInfo
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Abstract
The invention belongs to forestry sowing field, in particular to a kind of graft technology that utilizes in the method for wetland falling zone plantation walnut, the method is the principle based on utilizing Chinese ash stock grafting walnut, first Chinese ash is planted in area, falling zone, treat that Chinese ash survives, walnut grafting is carried out again after forming stable falling zone vegetation, the method successfully cultivates walnut in wetland falling zone, define stable falling zone walnut vegetational type, reduce water and soil loss to the negative effect of environment, reduce or control the environmental pollution in region, falling zone, simultaneously, walnut has certain agricultural performance, add the value that agricultural development utilizes, for the scale application of petal resource lays the foundation.
Description
Technical field
The invention belongs to forestry sowing field, particularly a kind of graft technology that utilizes is in the method for wetland falling zone plantation walnut.
Background technology
Falling zone, also known as falling zone or eat and flow zone, is river, lake, the distinctive a kind of phenomenon of reservoir, and its formation main cause is seasonal fluctuation in stage and makes reservoir area periphery be flooded soil periodicity exposure in one section of special area of the water surface.This region is alternation of wetting and drying area, also be the most active region of material, energy, information transmission and conversion between the ecotope of land and water, there is " source ", " storehouse ", " transfer station ", " adjuster " function in Biogeochemistry systemic circulation, it is the ecotone between reservoir area land-based area and waters, it is again the variation of ecology and environment acutely Ecotone of instability, all having significant impact to the ecotope of waters, land-based area especially two sides, reservoir area one band, is the key subsystem in the water ecological settings such as reservoir, rivers, lake.
By the impact of reservoir water level periodicity fluctuation, falling zone is energy in ecology in reservoir area system, material defeated move with transform enliven area, it has and stronger retains from agricultural run-off and non-point pollution (nitrogen, phosphorus, carbon) ecological functions, be conducive to the delay to organic pollutant, enrichment and degraded, for improving water quality, purify waste water, improve fish and wildlife habitat, protection bio-diversity and development fish production have important function, and falling zone or traffic harbour, freshwater resources, the place of tourist famous-city, the important living environments of the reservoir area people.So a kind of land resources with several functions is not only in falling zone, and it is a kind of resource with higher buffer capacity and the depollution of environment and defencive function.
Falling zone is a kind of precious resources with several functions.As a part for reservoir, the water plants that the water retention property that falling zone exists in a large number is good, to suppression flood, the water and soil loss preventing heavy rain and current scour river bank from causing has huge protective effect; And during water-break Cheng Lu, falling zone has again huge agricultural development value.Falling zone vegetation development has most important property for the performance of falling zone function.
At present, mainly there is following problem in the planting of sandy falling zone, reservoir area: falling zone plant growth environment condition is relatively harsh, stand coercing of the envirment factors such as water logging, high light, arid, nutritional deficiency, therefore occurring in nature is suitable for falling zone amphibious special habitats growing plants kind seldom, screening difficulty; Even if screen applicable floristics, but because soil structure in falling zone is through long-term water erosion, the soil organic matter dissolves in water body in a large number, cause reservoir area water quality deterioration, the soil organic matter is on the low side simultaneously, the pioneer initial stage of settling down screened is difficult to obtain enough nutrition and continues its existence, is successfully also difficult to form stable falling zone vegetational type even if indivedual plant is transplanted.
Therefore build a kind of simply, cultivate the method for economic crops fast and effectively fast at reservoir area fluctuating zone, form stable falling zone vegetational type, reduce water and soil loss to the negative effect of environment, reduce or the value polluted and increase agricultural development simultaneously and utilize that controls environment.
Walnut (Juglans regia) has another name called English walnut, for Juglandaceae (Juglandaceae) Juglans (Juglans) deciduous tree, rank first of the large dry fruit (walnut, almond, cashew nut, fibert) in the world four, have the title of " king of woody oleiferous plants ", be one of main nonwood forest trees of China, there is high nutritive value and good medical health effect.But walnut seeds are more weak to cold, arid resistance, and not moisture-proof flood, premunition is weak, causes to plant at reservoir area fluctuating zone.
Summary of the invention
In order to develop walnut plant resources better, worker of the present invention has done a series of research work, provides a kind of graft technology that utilizes in the method for wetland falling zone plantation walnut, successfully establishes falling zone walnut vegetational type.
Chinese ash (Pterocarya stenoptera) has another name called water fiber crops willow, maple willow, centipede willow, terrible head poplar and ingot poplar etc., and for Juglandaceae Chinese ash belongs to fallen leaves megaphanerophyte, the height of tree can reach 30 meters, and the diameter of a cross-section of a tree trunk 1.3 meters above the ground can reach 1 meter, tree crown oblate spheroid; Tight to the requirement of soil, all can grow in acidity and alkalescence soil.Happiness warm and moist weather and emerging thick fertile soil, drought-resistant barren, water-fast wet.Sapling up-growth is fast, and Fast-growing stage extends to about 15 years, and growth is gradually slow later.Solid comparatively early 40-60 is old and feeble, and being the important reproducting tree species of Plain Lake, low mountains and rivers paddy and river alongshore, is also urban greening species.Chinese ash has stronger resistance to the toxic gas such as flue dust and sulphur dioxide, and timber look white, matter is soft, can do furniture and splint etc., also can make walnut stock.Containing multiple compounds such as 2-amylalcohol, B-selinene, B-bisabolene, hexadecanoic acid and the black alcohol of B-paddy in Chinese ash blade, its bark, leaf, really, the position such as root all can be used as medicine, there is the multiple efficacies such as killing parasites to relieve itshing, removing toxic substances pain relieving, Chinese ash and walnut is equal does not belong to together, the disease cross infection on kindred plant can be avoided with Chinese ash grafting walnut, enhance the disease resistance of plant.
For achieving the above object, technical scheme of the present invention is:
Utilize graft technology in the method for wetland falling zone plantation walnut, comprise the step of carrying out as follows:
(1) planting site is selected
Select fluctuation degree of depth <20m, gradient <30 °, the soil exposure time in 3-5 middle of the month, soil total exposure time in the region, falling zone of 190-270d for treating planting site;
(2) consolidation
In 3-5 middle of the month, treat the exposure of planting site soil, within airing 3-5 days, carry out consolidation, soil is carried out before cultivation cave-shaped wholely, whole planting hole length and width, be deeply 60-80 centimetre, planting hole seeding row spacing is 1.5-2.0m × 2.0-3.0m, cave bottom application base manure, described base manure be fertilizer, ash, earth by weight ratio 1-5:1-5:1-2 ratio mixing, described fertilizer be drying chicken manure or through the cow dung of fermentation of becoming thoroughly decomposed or horsehit, described earth be planting-site soil through drying, pulverizing, the powdery earth of mistake 20-60 mesh sieve gained;
(3) Chinese ash is planted
In step (2) after consolidation, in the 3-5 month, select stalwartness, transplant strong sprout without more than 1 year raw Chinese ash of damage by disease and insect, described strong sprout with rise with cultivation, when planting to nursery stock main root according to the suitable cutting back of planting hole size, in order to avoid nest root, pruning tool should be sharp, and otch is level and smooth, avoids tearing root skin; After Chinese ash is planted, should mulching straw soil moisture conservation around butt, pour water according to weather conditions meanwhile, ground moistening and not ponding should be kept;
(4) tending management
After Chinese ash is planted, carry out 3-4 weeding in the 5-9 month then and loosen the soil, the 6-7 month then topdresses 2-3 time, imposes fertilizer 500-600kg/hm at every turn
2; Stop after late August pouring water; Execute phosphorus, potash fertilizer each 500-700kg/hm September
2, plough under in soil; Described fertilizer is the chicken manure of drying or the oxen and horses excrement through fermentation of becoming thoroughly decomposed;
(5) walnut grafting
Chinese ash carries out walnut grafting, 5-10 days before grafting after planting the Second Year 4-5 month, waters every day 1 time; Select life in 1 year, healthy and strong full walnut graft, walnut graft is whittled into three bevels, carries out high position grafting, after grafting at Chinese ash trees more than 1.8 meters positions, with plastic foil, the interface of scion and Chinese ash stock is wrapped up tight, within 15-20 days, remove the plastic foil of wrapping afterwards; In 10 days after grafting, need water every day 1 time; Within 15 days, remove wrapping film afterwards, then carry out Routine Management.After grafting, want running check, the rudiment in time on removing stock, promotes to budder development growth.Have mulberry tussock moth after sprouting if budder, chrysomelid grade eats young shoot tender leaf, can adopt the 1000 times of liquid sprayings of 40% dimethoate emulsion.When partial tree finds black spot, adopt the 800 times of liquid sprayings of 50% wettable topsin.
(6) management after walnut grafting
After walnut grafting, carry out 3-4 weeding in the annual 5-9 month and loosen the soil, the 6-7 month topdresses 2-3 time, imposes fertilizer 500-600kg/hm at every turn
2, stop after late August pouring water, execute phosphorus, potash fertilizer each 500-700kg/hm September
2, plough under in soil, execute phosphorus, potash fertilizer each 500-700kg/hm the 10-11 month again
2, plough under in soil, native face compressed; Described fertilizer be drying chicken manure or through become thoroughly decomposed fermentation cow dung or horsehit; Other times carry out Routine Management.
Method of the present invention, in described step (2), described base manure be fertilizer, ash, earth by weight ratio 2:1.5:1 ratio mixing.
Method of the present invention, in described step (2), described earth be planting-site soil through drying, pulverizing, cross the powdery earth of 50 mesh sieve gained.
Method of the present invention, in described step (3), in the 3-5 month, selects stalwartness, transplants strong sprout without the raw Chinese ash of 2-3 of damage by disease and insect.
Method of the present invention, in described step (5), selects 4-5 month fine day to carry out walnut grafting.
Method of the present invention, in described step (5), is whittled into three bevels by walnut graft, carry out high position grafting at the position of Chinese ash trees 1.8-2.5 rice.
Method of the present invention, in described step (5), during walnut grafting, when diameter of stock is at more than 6cm with tearing bark graft, diameter is in below 6cm cut-grafting.
Method of the present invention, in described step (6), the phosphorus executed in 10-11 month, potash fertilizer wrap up with high molecular weight water soluble polymer respectively, described high molecular weight water soluble polymer is made up of the component of following weight proportion: hydroxypropyl methylcellulose: oxidized starch: polyethylene glycol: Tween 80: deionized water is 30: 10: 12: 0.1: 50, and the molecular weight of described polyethylene glycol is at 1000-4000.
Method of the present invention, the molecular weight of described polyethylene glycol is 2000.
Method of the present invention, in described step (6), when walnut to be grafted starts result, in annual late August, in the drop-down plastic wire of walnut tree crown, avoids fruit to fall into the water.
Beneficial effect of the present invention is: the invention has the advantages that: 1) utilize method of the present invention high in falling zone plantation walnut survival rate, successfully establish falling zone walnut vegetational type; 2) method of the present invention, labor management is simple, provides the foundation for developing walnut plant resources better.
Embodiment
Illustrated embodiment is to be described content of the present invention better, but is not that content of the present invention is only limitted to illustrated embodiment.So those of ordinary skill in the art carry out nonessential improvement and adjustment according to foregoing invention content to embodiment, still belong to protection scope of the present invention.
The chemicals used in the present invention all can be obtained by commercial sources.
" Rogor " is common pesticides, chemical name O, O-dimethyl-S-(N-methylcarbamoyl methyl) phosphorodithioate.Nineteen fifty-one American E.I. suddenly Burger and J.T. Ka Sadi finds that there is insecticidal action, and US enterprise develop and spread in 1956 also can be used for killing mite.Sterling is white, needle-shaped crystals, and in water, solvability is 39 grams per liters (room temperatures).Easily be absorbed by plants also transporting to complete stool.More stable in an acidic solution, be hydrolyzed rapidly in alkaline solution, therefore can not be mixed with Basic pesticides.It is interior absorption organic phosphor Insecticidal and acaricidal agent.Insecticidal range is wide, has strong tagging and certain stomach poison function to insect and mite class.Can be oxidized to active higher omethoate in insect bodies, its mechanism of action suppresses the acetylcholine esterase in insect bodies, hinders nerve conduction and cause death." topsin " is also referred to as " ethyl topsin "; also known as " handwoven cloth falls apart "; chemical name is 1; 2-bis--(3-carbethoxyl group-2-sulfo-urea groups) benzene; be a kind of substituted beneze-group fungicides of efficient, low toxicity, wide spectrum, there is interior suction bactericidal action, have protection and therapeutic action concurrently; the powdery mildew in the various crop such as paddy and wheat, sweet potato, fruit tree, vegetables and cotton, stalk break, gray mold, anthracnose etc. can be prevented and treated, to people and animals' low toxicity.
Three Gorges Reservoir is typical river-like reservoir, the management and running of 175/145/175m water level pressed by reservoir, a huge eat and flow zone is formed in reservoir area of Three Gorges, namely reservoir in the 5-10 month with the low water level operation of 145m, run with the high water level of 175m in April November to next year, often there is normal throw to reach the reservoir fluctuation of 30m every year, define the reservoir eat and flow zone (area namely between reservoir peak level 175m and lowest water level 145m) that a national area is maximum.Gorges Chongqing section eat and flow zone is distributed in 22, Chongqing district, city, county, and littoral cities and towns, population, industry are intensive by mankind's activity serious interference, relate to industrial and mining enterprises discardedly maximum with migrant.Between the 145-175m of Reservoir of Chongqing Area, permanent eat and flow zone area reaches 306.28km
2, the permanent eat and flow zone gross area of the storehouse water front long 4881.43km(reservoir area of Three Gorges eat and flow zone of 175m elevation is 348.93km
2, the long 5578.21km of 175m water front).Reservoir area belongs to the moistening monsoon climate in typical subtropics, and there is the feature of river valley weather, after the Cheng Ku of Three Gorges, fluctuation in stage violates the withered big vast rule of nature, withered (except the during reservoir flood storage) winter in summer rises, at eat and flow zone hot climate and heavy rain, heavy rain frequently very easily form various geological disaster in withered season in summer.
Embodiment 1 utilizes graft technology in the method for Three Gorges Reservoir plantation walnut
(1) planting site is selected
Select falling zone, area, Chongqing Kaixian, elevation is between 175m-162m, and this soil, district exposure period is that about 3-10 middle of the month, namely annual soil in March starts exposure, lasts about 220d; Select falling zone, this area fluctuation degree of depth <20m, the region, falling zone of gradient <30 ° is for treating planting site;
(2) consolidation
In mid-March, treat the soil exposure of planting site, airing carried out consolidation after 3 days, carried out in soil cave-shapedly before cultivation whole planting hole length and width, being deeply 60 centimetres, planting hole seeding row spacing is 1.5m × 2.0m wholely, cave bottom application base manure, described base manure be fertilizer, ash, earth by weight ratio 2:1.5:1 ratio mixing, described fertilizer is the chicken manure of drying, described earth be planting-site soil through drying, pulverizing, mistake 50 mesh sieve gained powdery earth;
(3) Chinese ash is planted
In step (2), after consolidation mid-March, carry out Chinese ash and plant; Select healthy and strong, transplant strong sprout without the raw Chinese ash of 2-3 of damage by disease and insect, described strong sprout with rising with cultivation, when planting to nursery stock main root according to the suitable cutting back of planting hole size, in order to avoid nest root, pruning tool is suitable sharp, and otch smoothly, is avoided tearing root skin; After Chinese ash is planted, around butt, mulching straw soil moisture conservation, pours water according to weather conditions meanwhile, should keep ground moistening and not ponding;
(4) tending management
After Chinese ash is planted, carry out 3-4 weeding in the 5-9 month then and loosen the soil, the 6-7 month then topdresses 2-3 time, imposes fertilizer 500-600kg/hm at every turn
2; Stop after late August pouring water; Execute phosphorus, potash fertilizer each 500-700kg/hm September
2, plough under in soil; Described fertilizer is the chicken manure of drying;
(5) walnut grafting
Chinese ash carries out walnut grafting after planting the Second Year 4-5 month, chooses fine day and carries out walnut grafting, 5-10 days before grafting, waters every day 1 time; Select life in 1 year, healthy and strong full walnut graft, walnut graft is whittled into three bevels, carries out high position grafting at the position of Chinese ash trees 1.8-2.5 rice, during walnut grafting, when Chinese ash diameter of stock is at more than 6cm with tearing bark graft, diameter is in below 6cm cut-grafting.After grafting, with plastic foil, the interface of scion and Chinese ash stock is wrapped up tight, within 15-20 days, remove the plastic foil of wrapping afterwards; In 10 days after grafting, need water every day 1 time; Within 15 days, remove wrapping film afterwards, then carry out Routine Management.After grafting, want running check, the rudiment in time on removing stock, promotes to budder development growth.Have mulberry tussock moth after sprouting if budder, chrysomelid grade eats young shoot tender leaf, can adopt the 1000 times of liquid sprayings of 40% dimethoate emulsion.When partial tree finds black spot, adopt the 800 times of liquid sprayings of 50% wettable topsin.
(6) management after walnut grafting
After walnut grafting, carry out 3-4 weeding in the annual 5-9 month and loosen the soil, the 6-7 month topdresses 2-3 time, imposes fertilizer 500-600kg/hm at every turn
2, stop after late August pouring water, execute phosphorus, potash fertilizer each 500-700kg/hm September
2, plough under in soil, execute phosphorus, potash fertilizer each 500-700kg/hm the 10-11 month again
2, plough under in soil, native face compressed; Described fertilizer be drying chicken manure or through become thoroughly decomposed fermentation cow dung or horsehit; Other times carry out Routine Management.The phosphorus executed in 10-11 month in the present embodiment, potash fertilizer wrap up with high molecular weight water soluble polymer respectively, described high molecular weight water soluble polymer is made up of the component of following weight proportion: hydroxypropyl methylcellulose: oxidized starch: polyethylene glycol: Tween 80: deionized water is 30: 10: 12: 0.1: 50, and the molecular weight of described polyethylene glycol is 2000.When walnut to be grafted starts result, in annual late August, in the drop-down plastic wire of walnut tree crown, fruit is avoided to fall into the water.
Embodiment 2 utilizes graft technology in the method for Three Gorges Reservoir plantation walnut
Select falling zone, area, Chongqing Kaixian, elevation is between 175m-162m, and this soil, district exposure period is that about 3-10 middle of the month, namely annual soil in March starts exposure, lasts about 220d; Select falling zone, this area fluctuation degree of depth <20m, the region, falling zone of gradient <30 ° is for treating planting site; Method is with embodiment 1, and difference is that, in step (6), the phosphorus executed in 10-11 month, potash fertilizer do not adopt high molecular weight water soluble polymer to wrap up.
Observe after walnut grafting completes 2 years, in the region of embodiment 2, the growing way of grafting walnut is weak, and survival rate is low, only has 17-20%, and the region of embodiment 1, treat the survival rate 90% of planting site grafting walnut, define stable walnut vegetation group.
In the exposure of 3-5 month regression zone land, the digitized plant physiological ecology real-time online detection system track records such as Phytalk and LC-6200 type pore analyzer are adopted to analyze walnut plant development, the earlier plant upgrowth situation information in embodiment 1 region: stomatal conductance (8-16mmolm
-2s
-1), respiratory intensity (6.5-12.0CO
2mlhkg), stemflow (0.25-0.7h/L), leaf water potential (0.7-1.2MP), leaf water content (75-85%)) etc. plant apparent Physiological Ecology data day and seasonal rhythm change, simultaneously obtain falling zone light radiation intensity (1200-1600nmol/m
2s), atmospheric temperature (17-39 DEG C), atmospheric humidity (45-92g/m
3), the multiple real time environment factor variations data such as soil moisture content (72-94%), wind speed (0.7-4.2m/s), above data illustrate that region, falling zone utilizes the walnut plant growth condition of Chinese ash stock grafting good.
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (10)
1. utilize graft technology in the method for wetland falling zone plantation walnut, it is characterized in that, comprise the step of carrying out as follows:
(1) planting site is selected
Select fluctuation degree of depth <20m, gradient <30 °, the soil exposure time in 3-5 middle of the month, soil total exposure time in the region, falling zone of 190-270d for treating planting site;
(2) consolidation
In 3-5 middle of the month, treat the exposure of planting site soil, within airing 3-5 days, carry out consolidation, soil is carried out before cultivation cave-shaped wholely, the whole planting hole of institute is long, wide, deeply be 60-80 centimetre, planting hole seeding row spacing is (1.5-2.0) m × (2.0-3.0) m, cave bottom application base manure, described base manure is fertilizer, ash, earth is (1-5) by weight ratio: (1-5): the ratio mixing of (1-2), described fertilizer be drying chicken manure or through become thoroughly decomposed fermentation cow dung or horsehit, described earth is that planting-site soil is through drying, pulverize, cross the powdery earth of 20-60 mesh sieve gained,
(3) Chinese ash is planted
In step (2) after consolidation, in the 3-5 month, select stalwartness, transplant strong sprout without more than 1 year raw Chinese ash of damage by disease and insect, described strong sprout is with rising with cultivation, when planting to nursery stock main root according to the suitable cutting back of planting hole size, in order to avoid nest root, pruning tool should be sharp, otch is level and smooth, avoids tearing root skin; After Chinese ash is planted, should mulching straw soil moisture conservation around butt, pour water according to weather conditions meanwhile, ground moistening and not ponding should be kept;
(4) tending management
After Chinese ash is planted, carry out 3-4 weeding in the 5-9 month then and loosen the soil, the 6-7 month then topdresses 2-3 time, imposes fertilizer 500-600kg/hm at every turn
2; Stop after late August pouring water; Execute phosphorus, potash fertilizer each 500-700kg/hm September
2, plough under in soil; Described fertilizer be drying chicken manure or through become thoroughly decomposed fermentation cow dung or horsehit;
(5) walnut grafting
Chinese ash carries out walnut grafting, 5-10 days before grafting after planting the Second Year 4-5 month, waters every day 1 time; Select life in 1 year, healthy and strong full walnut graft, walnut graft is whittled into three bevels, carries out high position grafting, after grafting at Chinese ash trees more than 1.8 meters positions, with plastic foil, the interface of scion and Chinese ash stock is wrapped up tight, within 15-20 days, remove the plastic foil of wrapping afterwards; In 10 days after grafting, need water every day 1 time;
(6) management after walnut grafting
After walnut grafting, carry out 3-4 weeding in the annual 5-9 month and loosen the soil, the 6-7 month topdresses 2-3 time, imposes fertilizer 500-600kg/hm at every turn
2, stop after late August pouring water, execute phosphorus, potash fertilizer each 500-700kg/hm September
2, plough under in soil, execute phosphorus, potash fertilizer each 500-700kg/hm the 10-11 month again
2, plough under in soil, native face compressed; Described fertilizer be drying chicken manure or through become thoroughly decomposed fermentation cow dung or horsehit; Other times carry out Routine Management.
2. method according to claim 1, is characterized in that, in described step (2), described base manure be fertilizer, ash, earth by weight ratio 2:1.5:1 ratio mixing.
3. method according to claim 1, is characterized in that, in described step (2), described earth be planting-site soil through drying, pulverizing, cross the powdery earth of 50 mesh sieve gained.
4. method according to claim 1, is characterized in that, in described step (3), in the 3-5 month, selects stalwartness, transplants strong sprout without the raw Chinese ash of 2-3 of damage by disease and insect.
5. method according to claim 1, is characterized in that, in described step (5), selects 4-5 month fine day to carry out walnut grafting.
6. method according to claim 1, is characterized in that, in described step (5), walnut graft is whittled into three bevels, carries out high position grafting at the position of Chinese ash trees 1.8-2.5 rice.
7. method according to claim 1, is characterized in that, in described step (5), during walnut grafting, when diameter of stock is at more than 6cm with tearing bark graft, diameter is in below 6cm cut-grafting.
8. method according to claim 1, it is characterized in that, in described step (6), the phosphorus executed in 10-11 month, potash fertilizer wrap up with high molecular weight water soluble polymer respectively, described high molecular weight water soluble polymer is made up of the component of following weight proportion: hydroxypropyl methylcellulose: oxidized starch: polyethylene glycol: Tween 80: deionized water is 30: 10: 12: 0.1: 50, and the molecular weight of described polyethylene glycol is at 1000-4000.
9. method according to claim 8, is characterized in that, the molecular weight of described polyethylene glycol is 2000.
10. method according to claim 1, is characterized in that, in described step (6), when walnut to be grafted starts result, in annual late August, in the drop-down plastic wire of walnut tree crown, avoids fruit to fall into the water.
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| CN106171548A (en) * | 2016-07-19 | 2016-12-07 | 刘劲 | A kind of method improving Pterocarya Stenoptera bud grafting Semen Juglandis survival rate |
| CN106069224B (en) * | 2016-08-17 | 2019-08-02 | 湖南省作物研究所 | A method of it will be on walnut grafting to Chinese ash |
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| JPH02245120A (en) * | 1989-03-17 | 1990-09-28 | Takashi Matsuzawa | Method for water cut-off grafting of walnut |
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| CN102144488A (en) * | 2011-01-19 | 2011-08-10 | 浙江大学宁波理工学院 | Method for fast cultivating plants in sandy regression area at reservoir region |
| CN102523944A (en) * | 2012-02-08 | 2012-07-04 | 刘劲 | Method for increasing yield quickly by direct thick planting of walnut plants grafted onto Chinese ash stocks on low-lying wet land |
| CN103039240A (en) * | 2012-12-28 | 2013-04-17 | 重庆新开源农业开发有限公司 | Seeding and seedling raising method for waterbirch in Three Gorges Reservoir region |
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