CN104920138B - The method of nursery stock drought stress pretreatment before Southern Pine afforestation - Google Patents
The method of nursery stock drought stress pretreatment before Southern Pine afforestation Download PDFInfo
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- CN104920138B CN104920138B CN201510280141.8A CN201510280141A CN104920138B CN 104920138 B CN104920138 B CN 104920138B CN 201510280141 A CN201510280141 A CN 201510280141A CN 104920138 B CN104920138 B CN 104920138B
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- nursery stock
- potassium dihydrogen
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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
- A01G17/00—Cultivation of hops, vines, fruit trees, or like trees
- A01G17/005—Cultivation methods
Abstract
The invention discloses the method for nursery stock drought stress pretreatment before a kind of Southern Pine afforestation, the drought stress treatment of continuous 3 times is carried out before Southern Pine outplanting afforestation to nursery stock, the stress control water time of nursery stock was extended to the 3rd time 30 days or so by the 1st time 3 days, complete 3 stresses pretreatments after, nursery stock pour it is permeable can go out garden afforest.In the different times of stress, subsidize material paclobutrazol, salicylic acid, indolebutyric acid and potassium dihydrogen phosphate to improve and adjust the anti-adversity ability in Southern Pine seedling stage by foliage-spray plant external source, improve the effect of drought stress.Practice have shown that, preceding pretreatment of afforesting is carried out using the present invention, nursery stock drought-resistant ability is significantly improved, the surrival rate of afforestation improves 25~35% than conventional method, significantly improve afforestation efficiency, after-culture is saved and has managed and protected cost, be suitable to the popularization and application in the construction of Southern Pine fast-growing, high-yield woods and Silvicultural Engineering, the development to Southern Pine cycle industrial material forest has had important practical significance.
Description
Technical field
Locate in advance the invention belongs to nursery stock drought stress before Southern Pine cultivating seedlings field, more particularly to a kind of Southern Pine afforestation
The method of reason.
Background technology
The Southern Pines such as masson pine, wet-land pine tree and wet plus pine are the important dual-purpose seeds of fat material of south China, widely used, warp
Ji value is high, is the primary raw material seeds that China woods starches the industries such as paper (plate), rosin and building.Except timber and the large use of rosin two
Outside way, tree is available entirely for masson pine, and pollen, needle and bark are rich in polyphenoils, can be used as excellent anti-aging and resists
Oxidation health products；Pine nut oil-containing 30%, can manufacture paint, soap and lubricating oil；Cone can refine crude oil；The extractable pine of pine stump is burnt
Oil, moreover it is possible to precious Chinese medicine --- the Poria cocos of culture.
Guangxi rainfall is plentiful but distribution is uneven, and about 70% rainfall appears in June to September, and rainfall number of times amount short of rain is big, this
At a time when megathermal climate, arid with high temperature be influence afforestation survival rate and retention rate maximum restriction factor.The surrival rate of afforestation
It is low not only to spend the nursery stock of after-culture take and labour cost, at the same seedling growth is irregular and cause stand tending management etc. many to be asked
Topic.Therefore, the surrival rate of afforestation is Southern Pine fast-growing, high-yield woods important technological problems urgently to be resolved hurrily under improving drought condition.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of preceding nursery stock of Southern Pine afforestation for operating simple, economical and efficient and does
The method of non-irrigated stresses pretreatment, to improve Southern Pine arid season afforestation survival rate and retention rate, and effectively reduces cost of forestation.
In order to solve the above technical problems, the present invention uses following technical scheme：Nursery stock drought stress is pre- before Southern Pine afforestation
The method for the treatment of, carries out the drought stress treatment of continuous 3 times, the stress control water of nursery stock to nursery stock before Southern Pine outplanting afforestation
Time is respectively the 1st time 3 days, the 2nd time 10~13 days, the 3rd time 30~35 days.
Foliage-spray paclobutrazol and potassium dihydrogen phosphate mixed solution before 1st secondary control water, paclobutrazol concentration are 25~50mg/L,
Potassium dihydrogen phosphate mass percentage concentration is 0.2~0.3%；Foliage-spray salicylic acid and potassium dihydrogen phosphate mix before 3rd secondary control water
Solution, Determination of Salicylic Acid is 50~60mg/L, and potassium dihydrogen phosphate mass percentage concentration is 0.4~0.5%；The preceding blade face of outplanting
Indolebutyric acid and potassium dihydrogen phosphate mixed solution are sprayed, indolebutyric acid concentration is 100~200mg/L, potassium dihydrogen phosphate quality hundred
Concentration is divided to be 0.4~0.5%.
Go out before the afforestation of garden is before garden 1 first quarter moon or so.
The method of nursery stock drought stress pretreatment before above-mentioned Southern Pine afforestation, according to the following steps operation is carried out：
<1>Nursery stock prepares
Southern Pine nursery stock was cultivated by 3~6 months, height of seedling 15~20cm, more than ground diameter 0.25cm, and robust growth is disease-free
Insect pest；
<2>Go out drought stress before garden
By step<1>Ready nursery stock carries out continuous 3 drought stresses, and nursery stock is poured into permeable before stress every time, and the 1st
Secondary stress 3 days water time of control, the 2nd stress 10~13 days water time of control, the 3rd stress 30~35 days water time of control；And pass through
Drug-treated improves nursery stock resistance, wherein, foliage-spray paclobutrazol and potassium dihydrogen phosphate mixed solution before the 1st secondary control water are more
Effect azoles concentration is 25~50mg/L, and potassium dihydrogen phosphate mass percentage concentration is 0.2~0.3%；Foliage-spray water before 3rd secondary control water
Poplar acid and potassium dihydrogen phosphate mixed solution, Determination of Salicylic Acid be 50~60mg/L, potassium dihydrogen phosphate mass percentage concentration be 0.4~
0.5%；
<3>Outplanting
By step<2>The nursery stock for the treatment of can go out garden afforestation, foliage-spray indolebutyric acid and biphosphate before outplanting
Potassium mixed solution, indolebutyric acid concentration is 100~200mg/L, and potassium dihydrogen phosphate mass percentage concentration is 0.4~0.5%.
Step<2>Going out drought stress before garden need to prepare that film is anti-to rain when outdoor nursery is carried out.
Southern Pine is masson pine, wet-land pine tree or wet plus pine.
For the Southern Pine low problem of the arid season surrival rate of afforestation, inventor is remarkably improved using Continuous Drought stress
The characteristics of Southern Pine drought resistance of seedlings, the method for establishing nursery stock drought stress pretreatment before a kind of Southern Pine afforestation, i.e. south
The drought stress treatment of continuous 3 times is carried out before loose outplanting afforestation to nursery stock, the stress control water time of nursery stock was by the 1st time 3 days
Extend to the 3rd time 30 days or so, complete 3 stresses pretreatments after, nursery stock pour it is permeable can go out garden afforest.Stress it is different when
Phase, subsidize material paclobutrazol, salicylic acid, indolebutyric acid and potassium dihydrogen phosphate to improve and adjust by foliage-spray plant external source
The anti-adversity ability in Southern Pine seedling stage, improves the effect of drought stress.Wherein, paclobutrazol can suppress the prosperous length of nursery stock, shorten internode, drop
Low stomatal conductance and transpiration rate, make plant short strong, well developed root system；Salicylic acid has the energy of excellent activated plant defense reaction
Power, exogenous salicylic acid can improve the resistance of nursery stock；Indolebutyric acid is a kind of auximone, and Seedling height and root system can be promoted to give birth to
It is long；Potassium dihydrogen phosphate is that Southern Pine grows necessary nutrient and growth regulator, can promote well developed root system, and needle is dark green,
Cane is sturdy, significantly improves disease resistance and resistance.
Practice have shown that, preceding pretreatment of afforesting is carried out using the present invention, nursery stock drought-resistant ability is significantly improved, surrival rate of afforestation ratio
Conventional method is not (preprocessed) to improve 25~35%, significantly improves afforestation efficiency, has saved after-culture and has managed and protected cost.This
In nursery, unification is carried out for the drought stress treatment before garden that goes out of invention, and operation is simple, economical and efficient, successfully solve Central Guangxi,
The rainfall such as the west and south and the northwestward is on the low side and the uneven dry-land afforestation survival rate of Partition of rain and the low problem of storage rate, fits
In Southern Pine fast-growing, high-yield woods build and Silvicultural Engineering in popularization and application, have to the development of Southern Pine cycle industrial material forest important
Realistic meaning.
Specific embodiment
Embodiment 1
<1>Nursery stock prepares
Slash pine seedlings were cultivated by 138 days, and average height of seedling 15.7cm, average ground diameter 0.25cm, growth selection is healthy and strong, nothing
5000 plants of pest and disease damage nursery stock；
<2>Go out drought stress before garden
In 5 days January in 2015, by step<1>Ready nursery stock carries out continuous 3 arids side of body in outdoor nursery
Compel, nursery stock is poured permeable before stress every time, the 1st stress control 3 days water time (5 to 7 January, the rehydration of January 7), January 5
Day foliage-spray paclobutrazol and potassium dihydrogen phosphate mixed solution (paclobutrazol 25mg/L+ potassium dihydrogen phosphates 0.2%)；2nd stress
Control 12 days water time (8 to 18 January, the rehydration of January 18), the 3rd stress control (19 days to 2 months 18 January 30 days water time
Day), the foliage-spray salicylic acid of January 19 and potassium dihydrogen phosphate mixed solution (salicylic acid 50mg/L+ potassium dihydrogen phosphates 0.5%)；
Raining to be covered with film during stress prevents rainwater from drenching impact effect；
<3>Outplanting
By step<2>The nursery stock for processing (3 drought stresses amount to 44 days) pours permeable frame up out garden afforestation, outplanting
Preceding foliage-spray indolebutyric acid and potassium dihydrogen phosphate mixed solution (indolebutyric acid 100mg/L+ potassium dihydrogen phosphates 0.5%).
Embodiment 2
<1>Nursery stock prepares
Pinus massoniana Seedlings were cultivated by 153 days, and average height of seedling 17.5cm, average ground diameter 0.26cm, growth selection is healthy and strong, nothing
7000 plants of pest and disease damage nursery stock；
<2>Go out drought stress before garden
In 3 days January in 2015, by step<1>Ready nursery stock carries out continuous 3 arids side of body in seedling raising greenhouse
Compel, nursery stock is poured permeable before stress every time, the 1st stress control 3 days water time (3 to 5 January, the rehydration of January 5), January 3
Day foliage-spray paclobutrazol and potassium dihydrogen phosphate mixed solution (paclobutrazol 40mg/L+ potassium dihydrogen phosphates 0.3%)；2nd stress
Control 12 days water time (6 to 18 January, the rehydration of January 18), the 3rd stress control (19 days to 2 months 20 January 32 days water time
Day), the foliage-spray salicylic acid of January 19 and potassium dihydrogen phosphate mixed solution (salicylic acid 60mg/L+ potassium dihydrogen phosphates 0.4%)；
Raining to be covered with film during stress prevents rainwater from drenching impact effect；
<3>Outplanting
By step<2>The nursery stock for processing (3 drought stresses amount to 48 days) pours permeable frame up out garden afforestation, outplanting
Preceding foliage-spray indolebutyric acid and potassium dihydrogen phosphate mixed solution (indolebutyric acid 150mg/L+ potassium dihydrogen phosphates 0.5%).
Embodiment 3
<1>Nursery stock prepares
Wet plus loose nursery stock was cultivated by 180 days, and average height of seedling 20.3cm, average ground diameter 0.29cm, growth selection is healthy and strong, nothing
10000 plants of pest and disease damage nursery stock；
<2>Go out drought stress before garden
In 10 days January in 2015, by step<1>Ready nursery stock carries out continuous 3 arids side of body in outdoor nursery
Compel, nursery stock is poured permeable before stress every time, the 1st stress control 3 days water time (10 to 12 January, the rehydration of January 12), 1
Month foliage-spray paclobutrazols on the 10th and potassium dihydrogen phosphate mixed solution (paclobutrazol 50mg/L+ potassium dihydrogen phosphates 0.2%)；2nd time
Stress control 10 days water time (13 to 22 January, the rehydration of January 22), the 3rd stress control (23 days to 2 January 34 days water time
Months 25 days), the foliage-spray salicylic acid of January 23 and potassium dihydrogen phosphate mixed solution (salicylic acid 55mg/L+ potassium dihydrogen phosphates
0.4%)；
Raining to be covered with film during stress prevents rainwater from drenching impact effect；
<3>Outplanting
By step<2>The nursery stock for processing (3 drought stresses amount to 47 days) pours permeable frame up out garden afforestation, outplanting
Preceding foliage-spray indolebutyric acid and potassium dihydrogen phosphate mixed solution (indolebutyric acid 200mg/L+ potassium dihydrogen phosphates 0.5%).
Reference examples
In on 2 25th, 2015, selection seedling age 180 days, average height of seedling 20.3cm, average ground diameter 0.29cm, robust growth,
1500 plants of the nursery stock of no disease and pests harm, pours permeable by nursery stock, and directly frame up out garden afforestation.
By the nursery stock in the nursery stock pre-processed by 3 drought stresses in embodiment 1~3 and reference examples without pretreatment
1.25 ten thousand seedlings were gone up a hill afforestation (Afforestation conditions are similar) in unification on the 25th in 2 months in 2015 altogether, and on March 25th, 2015 is made
Woods survival rate is investigated, statistics such as table 1.
The Drought at seedling stage stresses pretreatment effect comparison sheet of table 1
Conclusion：As seen from Table 1, using the embodiment 1~3 of present invention treatment, the surrival rate of afforestation 95.3~97.5%, averagely
Survival rate 96.3%；The surrival rate of afforestation of reference examples is 73.6%, and embodiment improves 22.7%, embodiment than reference examples survival rate
Account for clear superiority.
The seedling age and stress time of embodiment 1~3 have difference, but surrival rate of afforestation difference is not obvious, reaches 95%
Survival rate above, reaches the criterion of acceptability of afforestation program and Silvicultural Engineering, has saved nursery stock and the labour cost of after-culture, while
The surrival rate of afforestation is high in addition to forest form is neat, also makes the tending management such as weeding, fertilising operation unify to carry out, and has a clear superiority.
Claims (5)
1. a kind of method that nursery stock drought stress is pre-processed before Southern Pine afforestation, it is characterised in that：Southern Pine outplanting is afforested
The preceding drought stress treatment that continuous 3 times are carried out to nursery stock, stress control water time of nursery stock be respectively the 1st time 3 days, the 2nd time 10~
13 days, the 3rd time 30~35 days；Foliage-spray paclobutrazol and potassium dihydrogen phosphate mixed solution before 1st secondary control water, paclobutrazol concentration is
25~50mg/L, potassium dihydrogen phosphate mass percentage concentration is 0.2~0.3%；Foliage-spray salicylic acid and phosphoric acid before 3rd secondary control water
Potassium dihydrogen mixed solution, Determination of Salicylic Acid is 50~60mg/L, and potassium dihydrogen phosphate mass percentage concentration is 0.4~0.5%；Nursery stock
Go out foliage-spray indolebutyric acid and potassium dihydrogen phosphate mixed solution before garden, indolebutyric acid concentration is 100~200mg/L, di(2-ethylhexyl)phosphate
Hydrogen potassium mass percentage concentration is 0.4~0.5%.
2. the method that nursery stock drought stress is pre-processed before Southern Pine afforestation according to claim 1, it is characterised in that：It is described
It is 1 first quarter moon before garden to go out before garden is afforested.
3. before Southern Pine according to claim 2 afforestation the pretreatment of nursery stock drought stress method, it is characterised in that by with
Lower step operation is carried out：
<1>Nursery stock prepares
Southern Pine nursery stock was cultivated by 3~6 months, height of seedling 15~20cm, more than ground diameter 0.25cm, robust growth, no disease and pests harm；
<2>Go out drought stress before garden
By step<1>Ready nursery stock carries out continuous 3 drought stresses, and nursery stock is poured into permeable before stress every time, the 1st side of body
Compel the 3 days water time of control, the 2nd stress 10~13 days water time of control, the 3rd stress 30~35 days water time of control；Wherein, the 1st time
Foliage-spray paclobutrazol and potassium dihydrogen phosphate mixed solution before control water, paclobutrazol concentration are 25~50mg/L, potassium dihydrogen phosphate matter
Amount percentage concentration is 0.2~0.3%；Foliage-spray salicylic acid and potassium dihydrogen phosphate mixed solution before 3rd secondary control water, salicylic acid are dense
It is 50~60mg/L to spend, and potassium dihydrogen phosphate mass percentage concentration is 0.4~0.5%；
<3>Outplanting
By step<2>The outplanting afforestation for the treatment of, foliage-spray indolebutyric acid and potassium dihydrogen phosphate mix before outplanting
Solution, indolebutyric acid concentration is 100~200mg/L, and potassium dihydrogen phosphate mass percentage concentration is 0.4~0.5%.
4. the method that nursery stock drought stress is pre-processed before Southern Pine afforestation according to claim 3, it is characterised in that step<
2>Going out drought stress before garden need to prepare that film is anti-to rain when outdoor nursery is carried out.
5. the method that nursery stock drought stress is pre-processed before Southern Pine afforestation according to claim 4, it is characterised in that：It is described
Southern Pine is masson pine, wet-land pine tree or wet plus pine.
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