CN110583263A - Full-light automatic spraying twig cutting propagation method for Elaeagnus dulcis - Google Patents
Full-light automatic spraying twig cutting propagation method for Elaeagnus dulcis Download PDFInfo
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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
- A01G2/00—Vegetative propagation
- A01G2/10—Vegetative propagation by means of cuttings
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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
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/10—Growth substrates; Culture media; Apparatus or methods therefor based on or containing inorganic material
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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
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/10—Growth substrates; Culture media; Apparatus or methods therefor based on or containing inorganic material
- A01G24/12—Growth substrates; Culture media; Apparatus or methods therefor based on or containing inorganic material containing soil minerals
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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
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/10—Growth substrates; Culture media; Apparatus or methods therefor based on or containing inorganic material
- A01G24/12—Growth substrates; Culture media; Apparatus or methods therefor based on or containing inorganic material containing soil minerals
- A01G24/15—Calcined rock, e.g. perlite, vermiculite or clay aggregates
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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
- A01G27/00—Self-acting watering devices, e.g. for flower-pots
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Abstract
The invention discloses a full-light automatic spray twig cutting propagation method for dulcamara, which comprises the following steps: the method comprises the following steps of preparing a cutting seedbed, preparing a substrate of the cutting seedbed, installing a full-light automatic spraying device, pretreating the seedbed before cutting, selecting cutting slips, treating base parts of the cutting slips, performing cutting operation and transplanting seedlings.
Description
Technical Field
The invention belongs to the field of plant cutting propagation, and particularly relates to a full-light automatic spraying twig cutting propagation method for dulcamara.
Background
Dulcin, another name: the tree species can be used for soap and lubricating oil, and the bark is the main component for making fuel, so that the tree species has better economic and practical values.
The dulcis trees are mainly bred by seeding and cutting propagation, so that wild-grown dulcis trees are rare, in recent years, with the background that governments pay more attention to ecological environment protection, people put eyes on the dulcis trees, and further research on the dulcis tree cutting propagation technology is increased, the dulcis tree propagation technology still stays at the level of 90 th generation in the last century at present, mainly seeding and cutting propagation of dulcis trees are adopted, although the seeding propagation technology is simple and easy to realize, tree seeds are easy to be invaded by various bacteria, viruses and insects and birds in the soil growth and germination process, so that the tree seed growth and germination rate is low, in addition, dulcis is bred by the cutting propagation technology, the technical conditions are more complicated than that of seeding and propagation, the survival rate of dulcis is higher than that of dulcis, but the growth vigor of dulcis trees obtained by the cutting propagation technology is better than that of withered leaves, dead leaves and dead leaves in, The disease resistance of damping-off disease and the like is weak, and the survival rate of the dulcamara in the growth stage is low. Aiming at the problems, how to realize the propagation technology of rapid propagation, low cost and robust growth of the Elaeagnus dulcis is an urgent problem to be solved in the technical field of propagation of the Elaeagnus dulcis.
Disclosure of Invention
The invention aims to provide a cuttage propagation method for dulcamara twig by full-light automatic spraying, which realizes rapid propagation, high survival rate, strong disease resistance, low cost and convenient operation.
In order to achieve the purpose, the invention adopts the following technical scheme:
a full-light automatic spray twig cutting propagation method for Elaeagnus dulcis comprises the following steps:
s1, preparing a cutting seedbed: selecting an area with sufficient illumination, ventilation and sufficient water source as a cutting seedbed, wherein the seedbed is circular, the radius of the seedbed is 12-14 m, the enclosing walls around the seedbed are formed by stacking red bricks, the height of the stacked total height is 10 layers of red bricks, a plurality of 24cm multiplied by 12cm multiplied by 10cm (length multiplied by width multiplied by height) drainage ports are reserved in the process of stacking the enclosing walls, a general drainage ditch is arranged on the red brick wall, the size of the drainage ditch is 30cm multiplied by 20cm (width multiplied by depth), a middle-high and periphery-low structure is arranged in the seedbed, the height difference is 40-60 cm, a square mounting platform is arranged in the middle, the size is 40cm multiplied by 40cm (length multiplied by width), the total height is formed by stacking 15 layers of red bricks, concrete is coated on the surface of the platform, and bolts for mounting a full-light automatic spraying device are reserved on the upper surface of the platform;
s2, preparing a substrate of the cutting seedbed: the total thickness of the substrate of the cuttage seedbed is 25 cm-35 cm, the substrate is distributed from the lower layer to the upper layer, the components of the substrate consist of coarse coal cinder, vermiculite and fine river sand, and the weight ratio of the coarse coal cinder, the vermiculite and the fine river sand is 1: 1: 1.5;
s3, mounting of a full-light automatic spraying device: the full-light automatic spraying device is installed and fixed on a square installation platform in the cuttage seedling bed, and a volume of 3m is arranged at the periphery of the cuttage seedling bed3The PE water storage tank is provided with a bottom water outlet which is 4.5m away from the ground, a booster pump and a pipeline are arranged, one end of the PE water storage tank is connected with the bottom water outlet of the water storage tank, and the other end of the PE water storage tank is connected with an all-optical automatic sprayer;
s4, pretreatment of the seedbed before cuttage: soaking the substrate of the cutting seedbed with clear water until water seeps out of a water outlet, after 30-50 min, uniformly spraying a potassium permanganate solution with the concentration of 0.3% on the surface of the seedbed through a manual sprayer, and waiting for 20-30 min;
s5, selecting cutting slips: pruning branches of 8-10 cm from the tender branches of the Elaeagnus dulcis as cutting slips, reserving 2-4 tender leaves, and then pruning the base parts of the cutting slips in a single-bevel pruning mode;
s6, processing the base of the cutting: firstly, soaking in 1% hydrogen peroxide, washing with clear water, then soaking in 300 times of carbendazim solution for sterilization, and washing with clear water;
s7, cuttage: cutting the cutting slips with the processed base parts into a seedbed, wherein the cutting depth is 2-3.5 cm, the cutting density is based on the criterion that the tender leaves of each cutting slip do not intersect, contact and shade, the cutting slips after cutting are sprayed with water by using a full-light automatic spraying device, and when a layer of water film is formed on the leaves of the cutting slips after cutting, the spraying is stopped immediately;
s8, management after cuttage: spraying water for 1 time every 3 minutes at 35-37 ℃ in the initial stage of cuttage, wherein the spraying time is 30 seconds every time, after callus is generated on the root, spraying water for 1 time every 10 minutes, after the seedling grows to root at the callus, spraying water for 1 time every 20 minutes, the spraying time for each time is 1 minute, after new rooting, spraying water for 3-4 times every day, 2 minutes every time, and spraying less water or no water in rainy days;
s9, transplanting seedlings: after 25-35 days of cuttage, the survival rate reaches more than 95%, the average seedling height is 110cm, and the Elaeagnus dulcis seedlings are obtained.
Preferably, the cuttage seedbed is arranged to be of a structure with a high middle part and a low periphery, so that drainage of the seedbed is facilitated, and waterlogging prevention performance of the seedbed is improved.
Preferably, the full-light automatic spraying device is connected with the booster pump and the PE water storage tank through pipelines, so that water sprayed by the full-light automatic spraying device forms fine mist.
Preferably, the substrate of the cutting seedbed comprises coarse coal cinder, vermiculite and fine river sand, the lower layer is the coarse coal cinder, gaps are easily formed in the lower layer, and the rapid drainage of the cutting seedbed is facilitated.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention can automatically spray the twig with full light for cuttage propagation, the survival rate can reach more than 95 percent after cuttage seedling culture for 25-35 days, the average seedling height is 110cm, the survival rate is high, and the seedling growth vigor is good.
2. The cutting seedling raising method is simple and convenient to operate, has good economical efficiency, and can realize
3. And (5) industrial seedling culture.
Detailed Description
The present invention will be further described with reference to the following detailed description, but is not limited to the scope of the invention.
Example 1
A full-light automatic spray twig cutting propagation method for Elaeagnus dulcis comprises the following steps:
s1, preparing a cutting seedbed: in 7 months, selecting an area with sufficient illumination, ventilation and water source as a cutting seedbed, wherein the seedbed is circular, the radius of the seedbed is 12m, the surrounding wall of the seedbed is formed by stacking red bricks, the total height of the stacked red bricks is 10 layers, the height of the red bricks is proper, a plurality of 24cm multiplied by 12cm multiplied by 10cm (length multiplied by width multiplied by height) drainage ports are reserved in the process of stacking the surrounding wall, a general drainage ditch is arranged on the red brick wall, the size of the drainage ditch is 30cm multiplied by 20cm (width multiplied by depth), a middle-high and periphery-low structure is arranged in the seedbed, the height difference is 40cm, a square mounting platform is arranged in the middle position, the size is 40cm multiplied by 40cm (length multiplied by width), the total height is 15 layers of the red bricks are stacked, concrete is coated on the surface of the platform, and bolts for mounting a full-light automatic spraying device are reserved on the upper surface of the platform;
s2, preparing a substrate of the cutting seedbed: the total thickness of the substrate of the cutting seedbed is 25cm,
the base material is distributed from the lower layer to the upper layer, the components of the base material consist of coarse coal cinder, vermiculite and fine river sand, and the weight ratio of the coarse coal cinder, the vermiculite and the fine river sand is 1: 1: 1.5;
s3, mounting of a full-light automatic spraying device: the full-light automatic spraying device is installed and fixed on a square installation platform in the cuttage seedling bed, and a volume of 3m is arranged at the periphery of the cuttage seedling bed3The PE water storage tank is provided with a bottom water outlet which is 4.5m away from the ground, a booster pump and a pipeline are arranged, one end of the PE water storage tank is connected with the bottom water outlet of the water storage tank, and the other end of the PE water storage tank is connected with an all-optical automatic sprayer;
s4, pretreatment of the seedbed before cuttage: soaking the substrate of the cuttage seedbed with clear water until water seeps out of the water outlet, after 30min, uniformly spraying a potassium permanganate solution with the concentration of 0.3% on the surface of the seedbed through a manual sprayer, and waiting for 20 min;
s5, selecting cutting slips: pruning branches of 8cm from the tender branches of the Elaeagnus dulcis as cutting slips, reserving 2 tender leaves, and then pruning the base parts of the cutting slips in a single bevel mode;
s6, processing the base of the cutting: firstly, soaking in 1% hydrogen peroxide, washing with clear water, then soaking in 300 times of carbendazim solution for sterilization, and washing with clear water;
s7, cuttage: cutting the cutting slips with the processed base parts into a seedbed, wherein the cutting depth is 2cm, the cutting density is based on the criterion that the tender leaves of each cutting slip are not crossed, contacted and shaded mutually, the cutting slips after cutting are sprayed with water by using a full-light automatic spraying device, and when a layer of water film is formed on the cutting slip leaves after cutting, the spraying is stopped immediately;
s8, management after cuttage: spraying water for 1 time every 3 minutes at 35 ℃ in the initial stage of cuttage, wherein the spraying time is 30 seconds every time, spraying water for 1 time every 10 minutes after callus is generated on the root, spraying water for 1 time every 20 minutes after the seedling grows to root at the callus, spraying water for 1 minute every 20 minutes after new rooting, spraying water for 3-4 times every day, and spraying water for 2 minutes every time, wherein less water or no water can be sprayed in rainy days;
in the embodiment, the number of cuttings is 850, 807 cuttings survive, the survival rate reaches 95%, and the average seedling height is 108.42 cm.
Example 2
S1, preparing a cutting seedbed: in 7 months, selecting an area with sufficient illumination, ventilation and water source as a cutting seedbed, wherein the seedbed is circular, the radius of the seedbed is 13m, the surrounding wall of the seedbed is formed by stacking red bricks, the total height of the stacked red bricks is 10 layers, the height of the red bricks is proper, a plurality of 24cm multiplied by 12cm multiplied by 10cm (length multiplied by width multiplied by height) drainage ports are reserved in the process of stacking the surrounding wall, a general drainage ditch is arranged on the red brick wall, the size of the drainage ditch is 30cm multiplied by 20cm (width multiplied by depth), a middle-high and periphery-low structure is arranged in the seedbed, the height difference is 50cm, a square mounting platform is arranged in the middle position, the size is 40cm multiplied by 40cm (length multiplied by width), the total height is 15 layers of the red bricks are stacked, concrete is coated on the surface of the platform, and bolts for mounting a full-light automatic spraying device are reserved on the upper surface of the platform;
s2, preparing a substrate of the cutting seedbed: the total thickness of the substrate of the cutting seedbed is 30cm,
the base material is distributed from the lower layer to the upper layer, the components of the base material consist of coarse coal cinder, vermiculite and fine river sand, and the weight ratio of the coarse coal cinder, the vermiculite and the fine river sand is 1: 1: 1.5;
s3, mounting of a full-light automatic spraying device: the full-light automatic spraying device is installed and fixed on a square installation platform in the cuttage seedling bed, and a volume of 3m is arranged at the periphery of the cuttage seedling bed3The PE water storage tank is provided with a bottom water outlet which is 4.5m away from the ground, a booster pump and a pipeline are arranged, one end of the PE water storage tank is connected with the bottom water outlet of the water storage tank, and the other end of the PE water storage tank is connected with an all-optical automatic sprayer;
s4, pretreatment of the seedbed before cuttage: soaking the substrate of the cuttage seedbed with clear water until water seeps out of the water outlet, after 40min, uniformly spraying a potassium permanganate solution with the concentration of 0.3% on the surface of the seedbed through a manual sprayer, and waiting for 25 min;
s5, selecting cutting slips: pruning 9cm branches from the twigs of the Elaeagnus dulcis as cutting shoots, reserving 2-4 leaves, and then pruning the base parts of the cutting shoots in a single bevel mode;
s6, processing the base of the cutting: firstly, soaking in 1% hydrogen peroxide, washing with clear water, then soaking in 300 times of carbendazim solution for sterilization, and washing with clear water;
s7, cuttage: cutting the cutting slips with the processed base parts into a seedbed, wherein the cutting depth is 3.0cm, the cutting density is based on the criterion that the tender leaves of each cutting slip do not intersect, contact and shade, the cutting slips after cutting are sprayed with water by using a full-light automatic spraying device, and when a layer of water film is formed on the cutting slip leaves after cutting, the spraying is stopped immediately;
s8, management after cuttage: spraying water for 1 time every 3 minutes at the temperature of 36 ℃ in the initial stage of cuttage, wherein the spraying time is 30 seconds every time, after the callus is generated on the root, spraying water for 1 time every 10 minutes, after the seedling grows roots at the callus, spraying water for 1 time every 20 minutes, wherein the spraying time is 1 minute every time, after new rooting, spraying water for 3-4 times every day, and 2 minutes every time, and spraying less water or no water in rainy days;
in the embodiment, the number of the cuttings is 1365, the cuttings survive 1310, the survival rate reaches 96%, and the average seedling height is 109.84 cm.
Example 3
S1, preparing a cutting seedbed: in 7 months, selecting an area with sufficient illumination, ventilation and water source as a cutting seedbed, wherein the seedbed is circular, the radius of the seedbed is 14m, the surrounding wall of the seedbed is formed by stacking red bricks, the total height of the stacked red bricks is 10 layers, the height of the red bricks is proper, a plurality of 24cm multiplied by 12cm multiplied by 10cm (length multiplied by width multiplied by height) drainage ports are reserved in the process of stacking the surrounding wall, a general drainage ditch is arranged on the red brick wall, the size of the drainage ditch is 30cm multiplied by 20cm (width multiplied by depth), a middle-high and periphery-low structure is arranged in the seedbed, the height difference is 60cm, a square mounting platform is arranged in the middle position, the size is 40cm multiplied by 40cm (length multiplied by width), the total height is 15 layers of the red bricks are stacked, concrete is coated on the surface of the platform, and bolts for mounting a full-light automatic spraying device are reserved on the upper surface of the platform;
s2, preparing a substrate of the cutting seedbed: the total thickness of the substrate of the cutting seedbed is 35cm, the substrate is distributed from the lower layer to the upper layer, the components of the substrate consist of coarse coal cinder, vermiculite and fine river sand, and the weight ratio of the coarse coal cinder, the vermiculite and the fine river sand is 1: 1: 1.5;
s3, mounting of a full-light automatic spraying device: the full-light automatic spraying device is installed and fixed on a square installation platform in the cuttage seedling bed, and a volume of 3m is arranged at the periphery of the cuttage seedling bed3The PE water storage tank is provided with a bottom water outlet which is 4.5m away from the ground, a booster pump and a pipeline are arranged, one end of the PE water storage tank is connected with the bottom water outlet of the water storage tank, and the other end of the PE water storage tank is connected with an all-optical automatic sprayer;
s4, pretreatment of the seedbed before cuttage: soaking the substrate of the cuttage seedbed with clear water until water seeps out of the water outlet, after 50min, uniformly spraying a potassium permanganate solution with the concentration of 0.3% on the surface of the seedbed through a manual sprayer, and waiting for 30 min;
s5, selecting cutting slips: pruning branches of 10cm from the tender branches of the Elaeagnus dulcis as cutting slips, reserving 2-4 tender leaves, and then pruning the base parts of the cutting slips in a single bevel mode;
s6, processing the base of the cutting: firstly, soaking in 1% hydrogen peroxide, washing with clear water, then soaking in 300 times of carbendazim solution for sterilization, and washing with clear water;
s7, cuttage: cutting the cutting slips with the processed base parts into a seedbed, wherein the cutting depth is 3.5cm, the cutting density is based on the criterion that the tender leaves of each cutting slip do not intersect, contact and shade, the cutting slips after cutting are sprayed with water by using a full-light automatic spraying device, and when a layer of water film is formed on the cutting slip leaves after cutting, the spraying is stopped immediately;
s8, management after cuttage: spraying water for 1 time every 3 minutes at 37 ℃ in the initial stage of cuttage, wherein the spraying time is 30 seconds every time, spraying water for 1 time every 10 minutes after the roots generate callus, spraying water for 1 time every 20 minutes after seedlings grow roots at the callus, spraying water for 1 minute every 20 minutes after new roots grow, spraying water for 3-4 times every day, spraying water for 2 minutes every time, and spraying less water or no water in rainy days;
the number of cuttings is 1730 in the embodiment, 1678 cuttings survive, the survival rate reaches 97%, and the average seedling height is 111.75 cm.
Duying cuttage seedling raising result comparison table
| Examples | Number of cuttings | Number of survivals | Survival rate | Height of seedling |
| Traditional cuttage | 1000 plants | 750 plants | 75％ | 98.32cm |
| Example 1 | 850 strains | 807 strain | 95％ | 108.42cm |
| Example 2 | 1365 strain | 1310 strain | 96％ | 109.84cm |
| Example 3 | 1730 Strain | 1678 strains | 97％ | 111.75cm |
Technical solution of the present invention is described as an example, and it is obvious that the specific implementation of the present invention is not limited by the above-mentioned manner, and it is within the protection scope of the present invention as long as various insubstantial modifications are made by using the method concept and technical solution of the present invention, or the inventive concept and technical solution are directly applied to other occasions without modifications.
Claims (1)
1. A full-light automatic spray twig cutting propagation method for Elaeagnus dulcis is characterized by comprising the following steps:
a full-light automatic spray twig cutting propagation method for Elaeagnus dulcis comprises the following steps:
s1, preparing a cutting seedbed: selecting an area with sufficient illumination, ventilation and sufficient water source as a cutting seedbed, wherein the seedbed is circular, the radius of the seedbed is 12-14 m, the enclosing walls around the seedbed are formed by stacking red bricks, the height of the stacked total height is 10 layers of red bricks, a plurality of 24cm multiplied by 12cm multiplied by 10cm (length multiplied by width multiplied by height) drainage ports are reserved in the process of stacking the enclosing walls, a general drainage ditch is arranged on the red brick wall, the size of the drainage ditch is 30cm multiplied by 20cm (width multiplied by depth), a middle-high and periphery-low structure is arranged in the seedbed, the height difference is 40-60 cm, a square mounting platform is arranged in the middle, the size is 40cm multiplied by 40cm (length multiplied by width), the total height is formed by stacking 15 layers of red bricks, concrete is coated on the surface of the platform, and bolts for mounting a full-light automatic spraying device are reserved on the upper surface of the platform;
s2, preparing a substrate of the cutting seedbed: the total thickness of the substrate of the cuttage seedbed is 25 cm-35 cm, the substrate is distributed from the lower layer to the upper layer, the components of the substrate consist of coarse coal cinder, vermiculite and fine river sand, and the weight ratio of the coarse coal cinder, the vermiculite and the fine river sand is 1: 1: 1.5;
s3, mounting of a full-light automatic spraying device: the full-light automatic spraying device is installed and fixed on a square installation platform in the cuttage seedling bed, and a volume of 3m is arranged at the periphery of the cuttage seedling bed3The PE water storage tank is provided with a bottom water outlet which is 4.5m away from the ground, a booster pump and a pipeline are arranged, one end of the PE water storage tank is connected with the bottom water outlet of the water storage tank, and the other end of the PE water storage tank is connected with an all-optical automatic sprayer;
s4, pretreatment of the seedbed before cuttage: soaking the substrate of the cutting seedbed with clear water until water seeps out of a water outlet, after 30-50 min, uniformly spraying a potassium permanganate solution with the concentration of 0.3% on the surface of the seedbed through a manual sprayer, and waiting for 20-30 min;
s5, selecting cutting slips: pruning branches of 8-10 cm from the tender branches of the Elaeagnus dulcis as cutting slips, reserving 2-4 tender leaves, and then pruning the base parts of the cutting slips in a single-bevel pruning mode;
s6, processing the base of the cutting: firstly, soaking in 1% hydrogen peroxide, washing with clear water, then soaking in 300 times of carbendazim solution for sterilization, and washing with clear water;
s7, cuttage: cutting the cutting slips with the processed base parts into a seedbed, wherein the cutting depth is 2-3.5 cm, the cutting density is based on the criterion that the tender leaves of each cutting slip do not intersect, contact and shade, the cutting slips after cutting are sprayed with water by using a full-light automatic spraying device, and when a layer of water film is formed on the leaves of the cutting slips after cutting, the spraying is stopped immediately;
s8, management after cuttage: spraying water for 1 time every 3 minutes at 35-37 ℃ in the initial stage of cuttage, wherein the spraying time is 30 seconds every time, after callus is generated on the root, spraying water for 1 time every 10 minutes, after the seedling grows to root at the callus, spraying water for 1 time every 20 minutes, the spraying time for each time is 1 minute, after new rooting, spraying water for 3-4 times every day, 2 minutes every time, and spraying less water or no water in rainy days;
s9, transplanting seedlings: after 25-35 days of cuttage, the survival rate reaches more than 95%, the average seedling height is 110cm, and the Elaeagnus dulcis seedlings are obtained.
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| CN111713279A (en) * | 2020-06-24 | 2020-09-29 | 国家林业和草原局泡桐研究开发中心 | Hardwood cutting propagation method for chaenomeles speciosa |
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