CN110603969A - Root cutting method for hybrid paper mulberry - Google Patents
Root cutting method for hybrid paper mulberry Download PDFInfo
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- CN110603969A CN110603969A CN201910967647.4A CN201910967647A CN110603969A CN 110603969 A CN110603969 A CN 110603969A CN 201910967647 A CN201910967647 A CN 201910967647A CN 110603969 A CN110603969 A CN 110603969A
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- cutting
- paper mulberry
- hybrid
- cuttage
- root
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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
-
- 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
- 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
- A01G24/28—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material containing peat, moss or sphagnum
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C5/00—Fertilisers containing other nitrates
- C05C5/02—Fertilisers containing other nitrates containing sodium or potassium nitrate
Abstract
The invention discloses a root cutting method of a hybrid paper mulberry, which is a root cutting method of a hybrid paper mulberry aiming at the characteristics and biological characteristics of the hybrid paper mulberry, and comprises the steps of matrix matching, cutting section acquisition and processing, cutting mode, cutting seedling stage management, seedling hardening and transplanting. In the management after cuttage, the problems of low survival rate of hardwood cuttage, easy rotting and necrosis of cuttings and the like are solved, the root system is enabled to grow rapidly, the growth is robust, the survival rate is greatly improved, the technical support is provided for short-term alternate cutting and large-scale breeding of the hybrid paper mulberry, and the development of the paper mulberry industry is promoted.
Description
Technical Field
The invention belongs to the technical field of plant asexual propagation, and particularly relates to a root cutting method of a hybrid paper mulberry.
Background
The hybrid paper mulberry is a high-quality tree species which can be planted in most areas of China through ten years of intensive research and demonstration verification by a plant research institute of Chinese academy of sciences. The modern agricultural breeding technology is adopted, and the tree species such as the Chinese family No. 1, No. 2 and No. 3 hybrid broussonetia papyrifera, the hybrid broussonetia papyrifera 101, the hybrid broussonetia papyrifera 201 and the like are cultivated by means of space carrying breeding, hybrid breeding and the like. The method has the following characteristics: fast growth: the annual average plant height is 4-6m, and the thickness is 4-6 cm. Planting in the same year and harvesting in the same year. The growth performance: the yield per mu of bast fiber is 200KG, the wood is 2000KG and the branches and leaves are 1500KG each year. Resistance to cutting: planting in one year, harvesting in successive years, and harvesting for more than 20 years.
The hybrid paper mulberry has multiple purposes of bark pulping, tree stalk pulping, leaf feed and the like, is widely popularized for planting, and has wide application prospect and abundant economic benefit. But the hybrid broussonetia papyrifera does not bloom and bear fruits, and large-scale and industrialized planting is difficult to form. The existing hardwood cutting propagation mode is strong in seasonality, cutting is generally carried out from frightening to clearness, when the hardwood sprouts, nutrition in branches gradually runs off, the survival rate cannot be guaranteed, the seedling is greatly influenced by the climate environment, the seedling period is long, the later management cost is high, and large-scale industrial seedling raising is difficult to realize.
Disclosure of Invention
The purpose of the invention is: aiming at the problems, the root cutting method of the hybrid paper mulberry is provided, the rooting speed and the resistance of the cutting seedlings are improved, the rottenness caused by slow rooting is reduced, the survival rate of the cutting seedlings is effectively improved, and the cost is lower. Provides technical support for short-term alternate felling and large-scale breeding of the hybrid paper mulberry to promote the development of the hybrid paper mulberry industry.
The specific technical scheme of the invention is as follows: a root cutting method of a hybrid paper mulberry comprises the following steps:
(1) and (3) selecting and matching a matrix: selecting vermiculite, turf and river sand as a cuttage matrix, uniformly mixing, applying carbendazim wettable powder, and placing in the sun for solarization for matrix disinfection; after the disinfection is finished, the substrate is laid in a cuttage groove of the greenhouse, and an automatic spraying device is arranged above the cuttage groove;
(2) and (3) acquisition and processing of the insertion section: growing up roots of 2-year-old hybrid broussonetia papyrifera, cutting the roots into 5-8 cm cuttings, removing and cleaning the upper side fibrous roots of the cuttings, and then putting the cuttings into a rooting agent for quick dipping;
(3) a cutting mode: vertically and downwards inserting the quickly dipped cutting sections into a cutting medium, wherein the insertion depth is 2-3 cm, and watering once to permeate water; after cuttage, keeping the matrix loose and breathable;
(4) seedbed management: controlling illumination by using a sunshade net in a greenhouse, carrying out light-proof treatment 3 days after cuttage, and after 5-8 days after callus is redifferentiated into adventitious roots, observing scattered light, and uncovering the sunshade net to gradually observe direct light after adventitious buds are formed; keeping the temperature of the substrate in the skewer slot 2-3 ℃ higher than the air temperature and 22-38 ℃, and keeping the relative humidity of air in the greenhouse between 80-85%; spraying a bactericide once every 7 days after cuttage, and applying a nutrient solution for 1 time every 3 days after the cuttage seedlings grow for 22 days;
(5) hardening and transplanting seedlings: after the cutting seedlings grow for 35d, hardening the seedlings by about 30cm in height, ventilating when hardening the seedlings, gradually reducing the water quantity on the basis of no water loss of leaf surfaces, watering once every night, and increasing the root-supporting quantity to enable the root systems to grow robustly; and (3) the illumination and temperature during seedling hardening are the same as those in the step (3), the spraying of the bactericide is stopped, proper potassium dihydrogen phosphate is sprayed every 7 days for strengthening the seedlings, field transplanting is carried out after 50 days, soil is carried during transplanting, and the seedlings are pulled out gently so as to avoid damaging the root system.
Specifically, in the step (1), vermiculite, grass peat and river sand are mixed according to the volume ratio of 1-2: 1-2, and the mixed substrate is laid in the cuttage groove to a thickness of 18-22 cm.
The carbendazim wettable powder is 50 wt% carbendazim wettable powder diluted by 800 times.
Preferably, in the step (2), the roots of the hybrid broussonetia papyrifera are robust and non-speckled tree roots with the diameter of 3-7 mm.
The upper end of the insertion section is a flat notch, the lower end of the insertion section is an oblique notch, and the notch is complete and smooth.
The rooting agent is a compound mixed agent consisting of naphthylacetic acid and indolebutyric acid, wherein the naphthylacetic acid is 500mg/L, the indolebutyric acid is 300mg/L, and the diluted concentration is 100 times.
Preferably, in the step (3), the cutting segments are vertically inserted downwards into the cutting medium according to the plant row spacing of 10cm × 10 cm.
Specifically, in the step (4), if the temperature of the matrix in the skewer slot is higher than 38 ℃, spraying or mechanical forced ventilation is used for cooling; an automatic spraying device was used to maintain indoor humidity.
The bactericide is 50% carbendazim, 50% mancozeb or 70% thiophanate methyl solution, and different bactericides are alternately sprayed.
The nutrient solution is prepared by mixing 0.7g/L of potassium nitrate, 0.8g/L of calcium nitrate, 0.28g/L of magnesium sulfate, 0.6mg/L of boric acid, 0.6mg/L of zinc sulfate and 0.6mg/L of manganese sulfate.
Has the advantages that: the method aims at that the hybrid broussonetia papyrifera does not bloom and bear fruits, and large-scale and industrialized planting is difficult to form; the existing hardwood cutting propagation mode is strong in seasonality, cutting is generally carried out from frightening to clearness, when the hardwood sprouts, nutrition in branches gradually runs off, the survival rate cannot be guaranteed, seedling raising is greatly influenced by the climate environment, the seedling raising period is long, the later management cost is high, and the large-scale factory seedling raising is difficult to realize. The invention discloses a method for transplanting roots of a hybrid paper mulberry, which comprises the steps of matrix matching, collection and treatment of a cutting segment → a cutting mode, cutting seedling stage management, seedling hardening and transplanting. In the management after cuttage, the problems of low survival rate of hardwood cuttage, easy rotting and necrosis of cuttings and the like are solved, the root system is enabled to grow rapidly, the growth is robust, the survival rate is greatly improved, the technical support is provided for short-term alternate cutting and large-scale breeding of the hybrid paper mulberry, and the development of the paper mulberry industry is promoted.
Detailed Description
The invention will be better understood from the following examples.
Selection and matching of matrix
Vermiculite, turf and river sand are selected as a cuttage matrix, the vermiculite, the turf and the river sand are uniformly mixed according to the volume ratio of 1:1:1, 50% carbendazim wettable powder diluted by 800 times is applied to the prepared matrix, the prepared matrix is placed in the sun and is exposed for 2 days, and the matrix is disinfected. After the disinfection is finished, the substrate is laid in a cuttage groove of the greenhouse, the thickness of the cuttage groove is 20cm, and an automatic spraying device is arranged above the cuttage groove;
② collection and processing of insertion section
In the morning of the cuttage day, growing roots of 2-year-old hybrid paper mulberry trees, selecting robust and non-speckled tree roots with the diameter of 3-7 mm, cutting the roots into 7 cm-long cutting sections, wherein the upper ends of the cutting sections are flat cuts, the lower ends of the cutting sections are oblique cuts, the cutting sections are complete and smooth, and the lateral fibrous roots on the cutting sections are removed and cleaned. Before cutting, putting a rooting agent into the cutting medium for dipping at an intermediate speed;
the rooting agent is a compound mixed agent consisting of naphthylacetic acid and indolebutyric acid, wherein the naphthylacetic acid is 500mg/L, the indolebutyric acid is 300mg/L, the diluted solution is 100 times, and the cuttage can be carried out by dipping for 10 seconds
Cutting mode
And vertically and downwards inserting the quickly dipped cutting sections into a cutting medium according to the plant row spacing of 10cm multiplied by 10cm, wherein the insertion depth is 2-3 cm, and watering once to permeate water. After cuttage, the matrix should be kept loose and breathable, and the matrix does not need to be pressed too firmly so as to avoid root rot caused by oxygen respiration obstruction;
management of seedbed
And controlling illumination in a greenhouse by using a sunshade net, wherein the height of the sunshade net is 15cm, after cuttage, shading treatment is carried out for 3 days, scattered light is seen after callus is redifferentiated into adventitious roots for 5-8 days, and direct light can be gradually seen after the callus is formed by uncovering the sunshade net. The temperature of the substrate in the skewer slot is 2-3 ℃ higher than the air temperature and is kept at 25-28 ℃ and is not lower than 22 ℃ so as to avoid influencing the growth of roots; if the temperature is higher than 38 ℃, the temperature can be reduced by spraying or mechanical forced ventilation. The relative humidity of air in the greenhouse is kept at 80-85%, and an automatic spraying device is used for keeping the indoor humidity and promoting the overground part to grow. The water content of the substrate is not too high, otherwise root system decay is easily caused. Spraying bactericide of 50% carbendazim, 50% mancozeb or 70% thiophanate methyl once every 7 days after cuttage, and alternately performing to prevent fungal cross infection; and applying the nutrient solution for 1 time every 3 days after the cutting seedlings grow for 22 days.
The nutrient solution is prepared by mixing 0.7g/L of potassium nitrate, 0.8g/L of calcium nitrate, 0.28g/L of magnesium sulfate, 0.6mg/L of boric acid, 0.6mg/L of zinc sulfate and 0.6mg/L of manganese sulfate.
By the method, the cuttage survival rate is over 90 percent, and the average seedling height is 13.4 cm.
Fifth, hardening and transplanting the seedlings
When the cutting seedlings grow for 35d, the seedlings can be hardened after being about 30cm high. Ventilating is started during hardening seedlings, the seedlings adapt to the natural environment, the watering amount is controlled, the water amount is gradually reduced on the basis that the leaf surfaces do not lose water, the water is watered every night, the root quantity is increased, and the root system grows robustly. And (4) stopping spraying the bactericide when the illumination and the temperature are the same as those of the seedling hardening process, and spraying proper potassium dihydrogen phosphate every 7 days to strengthen the seedlings. After 50 days, the seedlings can be transplanted in the field, soil is carried during transplanting, and the seedlings are pulled out gently so as to avoid damaging the root system.
The present invention provides a method and a concept for root cutting of hybrid broussonetia papyrifera, and a plurality of methods and ways for implementing the technical scheme, and the above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and embellishments can be made without departing from the principle of the present invention, and these modifications and embellishments should also be regarded as the protection scope of the present invention. All the components not specified in the present embodiment can be realized by the prior art.
Claims (10)
1. A root cutting method of a hybrid paper mulberry is characterized by comprising the following steps:
(1) and (3) selecting and matching a matrix: selecting vermiculite, turf and river sand as a cuttage matrix, uniformly mixing, applying carbendazim wettable powder, and placing in the sun for solarization for matrix disinfection; after the disinfection is finished, the substrate is laid in a cuttage groove of the greenhouse, and an automatic spraying device is arranged above the cuttage groove;
(2) and (3) acquisition and processing of the insertion section: growing up roots of 2-year-old hybrid broussonetia papyrifera, cutting the roots into 5-8 cm cuttings, removing and cleaning the upper side fibrous roots of the cuttings, and then putting the cuttings into a rooting agent for quick dipping;
(3) a cutting mode: vertically and downwards inserting the quickly dipped cutting sections into a cutting medium, wherein the insertion depth is 2-3 cm, and watering once to permeate water; after cuttage, keeping the matrix loose and breathable;
(4) seedbed management: controlling illumination by using a sunshade net in a greenhouse, carrying out light-proof treatment 3 days after cuttage, and after 5-8 days after callus is redifferentiated into adventitious roots, observing scattered light, and uncovering the sunshade net to gradually observe direct light after adventitious buds are formed; keeping the temperature of the substrate in the skewer slot 2-3 ℃ higher than the air temperature and 22-38 ℃, and keeping the relative humidity of air in the greenhouse between 80-85%; spraying a bactericide once every 7 days after cuttage, and applying a nutrient solution for 1 time every 3 days after the cuttage seedlings grow for 22 days;
(5) hardening and transplanting seedlings: after the cutting seedlings grow for 35d, hardening the seedlings by about 30cm in height, ventilating when hardening the seedlings, gradually reducing the water quantity on the basis of no water loss of leaf surfaces, watering once every night, and increasing the root-supporting quantity to enable the root systems to grow robustly; and (3) the illumination and temperature during seedling hardening are the same as those in the step (3), the spraying of the bactericide is stopped, proper potassium dihydrogen phosphate is sprayed every 7 days for strengthening the seedlings, field transplanting is carried out after 50 days, soil is carried during transplanting, and the seedlings are pulled out gently so as to avoid damaging the root system.
2. The root cutting method of the hybrid paper mulberry according to claim 1, wherein in the step (1), the vermiculite, the grass peat and the river sand are mixed according to a volume ratio of 1-2: 1-2, and the mixed substrate is laid in the cutting groove to a thickness of 18-22 cm.
3. The method for rooting and transplanting a hybrid broussonetia papyrifera as claimed in claim 1, wherein in the step (1), the carbendazim wettable powder is 50 wt% carbendazim wettable powder diluted by 800 times.
4. The root cutting method of the hybrid paper mulberry as claimed in claim 1, wherein in the step (2), the roots of the hybrid paper mulberry are robust and non-lesion roots with the diameter of 3-7 mm.
5. The method for root cutting of hybrid paper mulberry according to claim 4, wherein in step (2), the upper end of the cutting section is a flat cut, and the lower end is a bevel cut, and the cut is complete and smooth.
6. The method for rooting and transplanting of hybrid broussonetia papyrifera according to claim 1, wherein in the step (2), the rooting agent is a compound mixture of naphthylacetic acid and indolebutyric acid, wherein the naphthylacetic acid is 500mg/L, the indolebutyric acid is 300mg/L, and the dilution is 100 times.
7. The method for root cutting of hybrid broussonetia papyrifera according to claim 1, wherein in the step (3), the cutting segments are vertically inserted downwards into the cutting medium according to the plant row spacing of 10cm x 10 cm.
8. The method for rooting and transplanting a hybrid paper mulberry according to claim 1, wherein in the step (4), if the temperature of the substrate in the skewer slots is higher than 38 ℃, the temperature is reduced by spraying or mechanical forced ventilation; an automatic spraying device was used to maintain indoor humidity.
9. The root cutting method of the hybrid paper mulberry according to claim 1, wherein in the step (4), the bactericide is 50% carbendazim, 50% mancozeb or 70% thiophanate methyl solution, and different bactericides are alternately sprayed.
10. The method for rooting and transplanting the hybrid broussonetia papyrifera as claimed in claim 1, wherein in the step (4), the nutrient solution is prepared by mixing 0.7g/L of potassium nitrate, 0.8g/L of calcium nitrate, 0.28g/L of magnesium sulfate, 0.6mg/L of boric acid, 0.6mg/L of zinc sulfate and 0.6mg/L of manganese sulfate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910967647.4A CN110603969A (en) | 2019-10-12 | 2019-10-12 | Root cutting method for hybrid paper mulberry |
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| CN201910967647.4A CN110603969A (en) | 2019-10-12 | 2019-10-12 | Root cutting method for hybrid paper mulberry |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112753393A (en) * | 2020-12-31 | 2021-05-07 | 华南农业大学 | Efficient broussonetia papyrifera root propagation method |
| CN113854028A (en) * | 2021-10-12 | 2021-12-31 | 华南农业大学 | Multi-nursery matched seedling raising method based on broussonetia papyrifera root propagation |
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| CN101874447A (en) * | 2009-11-17 | 2010-11-03 | 金陵科技学院 | Beach plum root cutting seeding method |
| CN106376387A (en) * | 2016-08-25 | 2017-02-08 | 湖南恩典园林绿化有限公司 | Podocarpus macrophyllus cuttage breeding method |
| CN108812260A (en) * | 2018-05-04 | 2018-11-16 | 杭州早稻田生物技术有限公司 | A kind of paper mulberry root tissue culture fast seedling-cultivating method |
| CN108934679A (en) * | 2018-06-12 | 2018-12-07 | 磐安县山之舟生态农业有限公司 | A kind of root cutting growth of Ji Jing Aralia wood and seedling pipe support method |
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2019
- 2019-10-12 CN CN201910967647.4A patent/CN110603969A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101379918A (en) * | 2007-09-05 | 2009-03-11 | 北京万富春森林资源发展有限公司 | Stem cottage propagation tree-reconstruction method |
| CN101874447A (en) * | 2009-11-17 | 2010-11-03 | 金陵科技学院 | Beach plum root cutting seeding method |
| CN106376387A (en) * | 2016-08-25 | 2017-02-08 | 湖南恩典园林绿化有限公司 | Podocarpus macrophyllus cuttage breeding method |
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| CN112753393A (en) * | 2020-12-31 | 2021-05-07 | 华南农业大学 | Efficient broussonetia papyrifera root propagation method |
| CN112753393B (en) * | 2020-12-31 | 2022-04-22 | 华南农业大学 | Broussonetia papyrifera root propagation method |
| CN113854028A (en) * | 2021-10-12 | 2021-12-31 | 华南农业大学 | Multi-nursery matched seedling raising method based on broussonetia papyrifera root propagation |
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