CN110547106A - Simple in-situ green branch cuttage method for Tilia miqueliana Maxim - Google Patents
Simple in-situ green branch cuttage method for Tilia miqueliana Maxim Download PDFInfo
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- CN110547106A CN110547106A CN201910897837.3A CN201910897837A CN110547106A CN 110547106 A CN110547106 A CN 110547106A CN 201910897837 A CN201910897837 A CN 201910897837A CN 110547106 A CN110547106 A CN 110547106A
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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
Abstract
The invention discloses a simple local green branch cuttage method for Tilia miqueliana Maxim, which comprises the following steps: preparing a cutting bed, constructing a film-covered arched shed, constructing a shading shed frame, collecting and processing cutting slips, cutting, and managing after cutting. By the mode, the cutting facility and the operation link are simplified, the production cost is reduced, the on-site cutting can be realized, the later-period management and transplanting are not needed, the rooting rate of the cutting can reach 90%, the average rooting number of the cutting slips is more than 7, and the rapid propagation, the popularization and the application of rare plant Tilia miqueliana seedlings are facilitated.
Description
Technical Field
The invention relates to the technical field of woody plant seedling propagation, in particular to a simple in-situ green branch cutting method for Tilia miqueliana Maxim.
Background
Tilia miqueiana (Tilia miqueiana) belongs to Tiliaceae (Tiliaceae) and Tiliaceae (Tilia L.) and is a special species in China, is an excellent tree species integrating ornamental value, economic value and medicinal value, becomes one of new species for modern urban greening and garden greening, and has large demand for nursery stocks in the market. However, the environment of Tilia miqueliana Miqueliana is damaged by human intervention, and the wild population is naturally updated poorly, so that the population quantity and the individual number of the Tilia miqueliana Miqueliana are continuously reduced. In addition, the Tilia miqueliana seeds have deep dormancy, and can germinate in 2-3 years under natural conditions, so that natural propagation is very difficult, and the production, popularization and application of the Tilia miqueliana seedlings are influenced.
At present, the mass propagation of tilia miqueliana is mainly based on seed propagation and cutting propagation, but the seed plumpness is different, the seed dormancy is deep, and the sowing propagation speed of tilia miqueliana is seriously influenced. Compared with the prior art, the cutting propagation can grow seedlings in the same year, the propagation speed is relatively high, and a plurality of research reports exist at present. Under the full-light automatic intermittent spraying condition, the rooting survival rate of the tilia miqueliana twig cutting can reach about 80% (Shifeng et al, tilia miqueliana twig cutting technical research [ J ], school report of university of technology in south China forestry, 2017, 37 (8): 6-10). Or a facility cutting method such as air-conditioning constant temperature control and LED lamp illumination can be used for obtaining good cutting effect, the rooting rate can reach about 90%, and the transplanting survival rate can reach more than 95% (beam dawn spring, Thosjie and the like, a facility cutting Tilia miqueliana Maxim method, 2017102001356). However, these methods have more strict requirements on the cutting facilities, need to be carried out in a glass greenhouse with an automatic spraying, automatic sun-shading and temperature control system, and also need to be ventilated regularly, and need to disinfect the cutting pool and the special substrate; or under the condition of full manual control of temperature, humidity and illumination; after the cuttage roots survive, the seedlings need to be moved to a field for hardening and cultivating into seedlings, and the summer high temperature season is positive, the transplanting survival rate is greatly influenced by high temperature climate, which puts high requirements on the cuttage operation and daily management and influences the practical effect of popularization and application to a certain extent.
Disclosure of Invention
The invention mainly solves the technical problem of providing a simple and easy in-situ green branch cuttage method for Tilia miqueliana Maxim, which can realize cuttage in situ and efficiently without special management after cuttage.
In order to solve the technical problems, the invention adopts a technical scheme that: the simple in-situ green branch cutting method for tilia miqueliana includes the following steps: (1) preparing an slotting machine: arranging the land with loose surface soil layer into a cutting bed for in-situ cutting; (2) constructing a film-covered arched shed: building an arched shed above the slotting machine, and covering a film on the arched shed; (3) constructing a shading shed frame: building a shading shed frame above the film-covered arched shed, wherein a shading net covers the shading shed frame; (4) collecting and processing cutting slips: collecting current-year tender branches from Tilia miqueliana plants as cuttings in the middle ten days of 4 months to the upper ten days of 6 months or in the last 8 months to the upper ten days of 9 months, shearing cutting slips from the bases of the cuttings, and bundling the cuttings into bundles, wherein the bases of the cutting slips are soaked by a rooting agent; (5) cuttage: carrying out on-site cutting on the cutting slips by using a stick for assisting, inserting the cutting slips into soil, compacting the base parts of the cutting slips during cutting, spraying a bactericidal insecticide, and sequentially covering a film and a sunshade net; (6) and (3) management after cuttage: and (4) after 50-60 days of cuttage, taking down the film, hardening the seedlings for 1-2 weeks, taking down the sunshade net, and then managing according to the conventional cultivation technical requirements of garden seedlings.
In a preferred embodiment of the invention, in the step (1), the land of the land parcel is turned, loosened and broken into clods, so that the surface soil layer of the land parcel is loosened; the width of the slotting machine is 110-130 cm, and the length of the slotting machine is 10-20 m; the slotting machine is in the north-south direction, and the bed surface is flat and level with the ground.
In a preferred embodiment of the invention, the step (1) further comprises perforating clay hardened on the surface soil layer of the cutting bed, and filling sand for cutting; and (2) before in-situ cuttage, the well-arranged cuttage bed is watered thoroughly, so that the soil fully absorbs water, and the surface soil layer is kept in a wet state.
In a preferred embodiment of the invention, the skeleton material of the film-covered arched shed in the step (2) is bamboo rods, bamboo chips, iron bars or glass fiber reinforced plastic elastic rods; the width of the shed is 110-130 cm, and the height of the shed is 40-50 cm above the ground; the horizontal pole interval of tectorial membrane arched shed's skeleton is 0.8 ~ 1m, the longitudinal rod at tectorial membrane arched shed top is bound through iron wire or rope and horizontal pole.
in a preferred embodiment of the present invention, the skeleton material of the sunshade frame in step (3) is bamboo rods, bamboo chips, iron bars, glass fiber reinforced plastic elastic rods or hollow iron pipes; the shading rate of the sunshade net is 70-85%.
In a preferred embodiment of the present invention, in the step (3), the width of the sunshade frame is 120-140 cm, the ceiling height is 70-80 cm above the ground, and the distance between the sunshade frame and the ceiling height of the film covering arched shed is not less than 30 cm.
In a preferred embodiment of the invention, the sunshade canopy frame in the step (3) comprises a canopy frame with the height from the ground being 150-200 cm, the sunshade area of the sunshade canopy frame is determined according to the floor area of the slotting bed, and the canopy frame is higher, so that the subsequent operation is facilitated.
In a preferred embodiment of the present invention, the cuttings collected from the middle ten to the upper 6 th of month in step (4) are taken from the shoots where the upper buds of the annual shoots germinate and grow, and the cuttings collected from the middle upper part of the annual shoots from the lower 8 th to the upper 9 th of month; immediately carrying out film covering and moisture preservation treatment on the collected cuttings before cutting the cuttings; the length of the cut cuttings is 10-12 cm; the rooting agent is 100ppm of indoleacetic acid IBA or a mixed solution of 50-100 ppm of indoleacetic acid IBA and 50ppm of alpha-naphthylacetic acid NAA; and (4) soaking the mixture for 3-6 hours by using a rooting agent.
In a preferred embodiment of the invention, the local cuttage in the step (5) is selected before and after sunset or in the morning and in weak light; the diameter of the rod is 0.6-1.0 cm; 1/3-1/2 at the lower part of the cutting are inserted into the soil, the plant spacing is 8-10 cm, and the row spacing is 15-20 cm; and timely replenishing water to the leaf surfaces of the cutting slips in the process of inserting the cutting slips into the soil.
In a preferred embodiment of the invention, no water is accumulated after the cuttage in the step (6) is finished.
The invention has the beneficial effects that:
The cutting facility is simple, the shed frame is easy to build, the cost is lower, the link is simplified, the operation is convenient, the operation is easy to master by common nursery stock producers, and the production, popularization and application are facilitated;
After the cutting is finished on the spot, the manual daily management is not needed in the later period, the trouble of watering management every day is avoided, and the labor force and the time are saved;
thirdly, direct in-situ cuttage is carried out without specially preparing and filling a cuttage matrix, transplanting is not needed after survival, time and labor are saved, and rooting and survival are facilitated;
And fourthly, the green branch cuttage effect is good, the rooting rate of the cutting slips can reach about 90%, the average rooting number is more than 7, and the method can be applied to large-scale rapid propagation production of Tilia miqueliana seedlings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
The simple in-situ green branch cutting method for tilia miqueliana includes the following steps:
(1) preparing an slotting machine:
in winter and spring, selecting a land block to be subjected to cuttage, turning over the land of the land block, loosening the soil, leveling, and loosening a surface soil layer through freeze thawing or dry-wet alternation. Before cuttage, further smashing soil blocks, arranging the land blocks into an cuttage bed with the width of 110-130 cm and the length of 10-20 m according to the north-south direction, wherein the bed surface of the cuttage bed is flat and level with the ground. For the clay hardened in the surface soil layer, a punching tool with the diameter of 2-4 cm is used, firstly, holes are punched in a finished cutting bed, the hole depth is 8-10 cm, wet river sand, vermiculite and perlite are poured, garden soil is directly used for cutting as a control area, and then the control area is used for cutting in place. One day before cuttage, the prepared cuttage bed is watered thoroughly, so that the soil fully absorbs water and the surface soil layer is kept in a moist state.
(2) Constructing a film-covered arched shed:
According to the width of the used film, bamboo poles are selected as framework materials of the arched shed, and a small arched shed with the width of 110-130 cm and the top height of 40-50 cm is built for covering the film so as to keep the air humidity in the film and prevent the cutting slips after cutting from being dry, shriveled and wilted. The transverse rod interval of the small arched shed framework is 0.8-1 m, and the top longitudinal rod is bound with the transverse rod through iron wires or ropes and the like, so that the stability of the thin film small arched shed is guaranteed.
(3) Constructing a shading shed frame:
selecting bamboo poles as framework materials of the shading shed frame, building the shading shed frame with the width of 120-140 cm and the height above the ground of 70-80 cm, wherein the distance between the shading shed frame and the top height of the film-covered arched shed is not less than 30 cm. The sunshade shed frame is covered with a sunshade net, and the shading rate of the sunshade net is about 70-85%.
(4) collecting and processing cutting slips:
in the middle and late ten days of 4 months in spring, the tender branches of annual branches, which sprout and grow, are collected from good-growing Tilia miqueliana plants without diseases and insect pests and serve as cuttings. Immediately soaking the base part of the cutting into a container filled with clear water or wet sand for keeping moisture, and covering a plastic film to prevent the tender branches and leaves from water loss and wilting. Cutting the cutting slips indoors or in shade, cutting semi-lignified twigs with the length of 10-12 cm from the base parts of the cutting slips to serve as the cutting slips, reserving 1-2 complete leaves at the upper ends of the cutting slips, binding every 30-50 cut cutting slips into a bundle, and soaking the base parts of the cutting slips in rooting liquid for 3-6 hours. The rooting agent is treated by adopting a compound formula of 100ppm IBA and 50ppm NAA.
(5) Cuttage:
and selecting a time period with weak illumination before and after sunset for local cuttage. And (3) beating small insertion holes with small sticks with the diameter of 0.6-1.0 cm to assist in-situ cutting, inserting 1/3-1/2 lower portions of the cutting slips into the soil, wherein the plant spacing is 8-10 cm, the row spacing is 15-20 cm, the blade orientations are consistent and are not overlapped, and the base portions of the cutting slips are lightly compacted during cutting. When the cutting slips are inserted on the spot, a sprayer or a shower head is used for replenishing water in time, so that the leaves are kept moist and do not lose water. And after all cuttings of each cutting bed are cut, immediately spraying 600-1000 times of carbendazim on the cutting blades. After the cuttage is finished, a temperature and humidity recorder with an external probe is placed, a film and a sunshade net are sequentially covered, and the periphery of the film and the sunshade net is fixed by bricks, soil, river sand and other materials to prevent the film and the sunshade net from being blown up by wind.
(6) Post-cuttage management
After the cuttage is finished, no water is accumulated after rain, and special management is not needed in other aspects. And after 50-60 d of cutting, successively uncovering two ends of the film and the whole film, hardening the seedlings for 1-2 weeks, then uncovering the sunshade net, and then managing according to the conventional cultivation technical requirements of garden seedlings.
After 65d of cutting, the influence of different substrates and different rooting agent treatments on cutting rooting is investigated. The result is that after 100ppm IBA +50ppm NAA composite rooting treatment, the average rooting rate of the cuttings is 92.86% in the punching sand filling area, 71.43% in the perlite area, 64.29% in the vermiculite area and 85.71% in the garden soil control area respectively. In addition, after 100ppm IBA treatment, the average rooting rates of the perforated sand filling treatment area and the direct cuttage are respectively 70% and 76.67%; after treatment with 100ppm ABT, the average rooting rates for the perforated sand-filled treatments and the direct cuttings were 70% and 56.67%, respectively. The method is characterized in that in the Tilia miqueliana local green branch cutting seedling raising process, besides the hardened land of the surface soil layer, the medium materials such as river sand and the like are not needed to be drilled and filled, and the good cutting effect can be obtained by direct local cutting.
Example two:
The simple in-situ green branch cutting method for tilia miqueliana includes the following steps:
(1) preparing an slotting machine:
In winter and spring, selecting a land block to be subjected to cuttage, turning over the land of the land block, loosening the soil, leveling, and loosening a surface soil layer through freeze thawing or dry-wet alternation. Before cuttage, further smashing soil blocks, arranging the land blocks into a cuttage bed with the width of 110-130 cm and the length of 10-20 m according to the south-north direction, wherein the south-north direction of the cuttage bed is smooth, and the bed surface is flush with the ground. For clay hardened in a surface soil layer, a punching tool with the diameter of 2-4 cm is used for punching holes with the depth of 8-10 cm on a prepared cutting bed, and the holes are used for cutting after wet river sand is poured. One day before cuttage, the prepared cuttage bed is watered thoroughly, so that the soil fully absorbs water and the surface soil layer is kept in a moist state.
(2) constructing a film-covered arched shed:
According to the width of the used film, the glass fiber reinforced plastic elastic rods are selected as framework materials of the arched shed, and a small arched shed with the width of 110-130 cm and the ceiling height of 40-50 cm is built for covering the film, so that the air humidity in the film is kept, and the leaf is prevented from being shriveled and wilted. The transverse rod interval of the small arched shed framework is 0.8-1 m, and the top longitudinal rod is bound with the transverse rod through iron wires or ropes and the like, so that the stability of the thin film small arched shed is guaranteed.
(3) Constructing a shading shed frame:
A hollow iron pipe with the diameter of 2-2.5 cm is selected as a framework material of the shading shed frame, the shading shed frame with the ground clearance of 150-160 cm is built, and the area size is the same as that of the slotting bed. The sunshade shed frame is covered with a sunshade net, and the shading rate of the sunshade net is about 70-85%.
(4) Collecting and processing cutting slips:
in the last 6 th month, the current-year shoots are collected from good-growing Tilia miqueliana plants without diseases and insect pests as cuttings. Immediately soaking the base part of the cutting into a container filled with clear water or wet sand for keeping moisture, and covering a plastic film to prevent the tender branches and leaves from water loss and wilting. Cutting the cutting slips indoors or in shade, cutting semi-lignified twigs with the length of 10-12 cm from the base parts of the cutting slips to serve as the cutting slips, reserving 1-2 complete leaves at the upper ends of the cutting slips, binding every 30-50 cut cutting slips into a bundle, and soaking the base parts of the cutting slips in a proper rooting solution for 3-6 hours.
(5) Cuttage:
And selecting a time period with weak illumination before and after sunset for local cuttage. And (3) beating small insertion holes with small sticks with the diameter of 0.6-1.0 cm to assist in-situ cutting, inserting 1/3-1/2 lower portions of the cutting slips into the soil, wherein the plant spacing is 8-10 cm, the row spacing is 15-20 cm, the blade orientations are consistent and are not overlapped, and the base portions of the cutting slips are lightly compacted during cutting. When the cutting slips are inserted on the spot, a sprayer or a shower head is used for replenishing water in time, so that the leaves are kept moist and do not lose water. And immediately spraying the mixed solution of 600-1000 times of carbendazim and 1000-2000 times of insecticide on the cutting blades after all cuttings of each cutting bed are cut. After the cuttage is finished, a temperature and humidity recorder with an external probe is placed, a film and a sunshade net are sequentially covered, and the periphery of the film and the sunshade net is fixed by bricks, soil, river sand and other materials to prevent the film and the sunshade net from being blown up by wind.
(6) Post-cuttage management
After the cuttage is finished, no water is accumulated after rain, and special management is not needed in other aspects. And after 50-60 d of cutting, successively uncovering two ends of the film and the whole film, hardening the seedlings for 1-2 weeks, then uncovering the sunshade net, and then managing according to the conventional cultivation technical requirements of garden seedlings.
After 55d of cuttage, the two ends of the film are sequentially uncovered for acclimatization for 2d, then the film is completely uncovered, and the cuttage effect of different rooting agent treatments is investigated. The results show that the average rooting rate after IBA 100ppm single treatment is 73.33 percent and reaches up to 90 percent; the average rooting rate with the mixed treatment of 50ppm NAA and 50ppm IBA was 80% and up to 90%, while the average rooting rate with 100ppm ABT rooting agent was 70% and up to 80%. Therefore, by combining the cutting effects of the embodiments 1 and 2, in the green branch cutting seedling raising in spring of Tilia miqueliana, 100ppm IBA is used for single treatment or 50-100 ppm IBA +50ppm NAA composite treatment, so that the cutting rooting survival rate can be obviously improved, and the cutting effect is even better than that of the ABT rooting agent.
Example three:
The simple in-situ green branch cutting method for tilia miqueliana includes the following steps:
(1) Preparing an slotting machine:
In winter and spring, selecting a land block to be subjected to cuttage, turning over the land of the land block, loosening the soil, leveling, and loosening a surface soil layer through freeze thawing or dry-wet alternation. Before cuttage, further smashing soil blocks, arranging the land blocks into a cuttage bed with the width of 110-130 cm and the length of 10-20 m according to the south-north direction, wherein the south-north direction of the cuttage bed is smooth, and the bed surface is flush with the ground. For clay hardened in a surface soil layer, a punching tool with the diameter of 2-4 cm is used for punching holes with the depth of 8-10 cm on a prepared cutting bed, and the holes are used for cutting after wet river sand is poured. One day before cuttage, the prepared cuttage bed is watered thoroughly, so that the soil fully absorbs water and the surface soil layer is kept in a moist state.
(2) Constructing a film-covered arched shed:
According to the width of the used film, the glass fiber reinforced plastic elastic rods are selected as framework materials of the arched shed, and a small arched shed with the width of 110-130 cm and the ceiling height of 40-50 cm is built for covering the film, so that the air humidity in the film is kept, and the leaf is prevented from being shriveled and wilted. The transverse rod interval of the small arched shed framework is 0.8-1 m, and the top longitudinal rod is bound with the transverse rod through iron wires or ropes and the like, so that the stability of the thin film small arched shed is guaranteed.
(3) Constructing a shading shed frame:
A hollow iron pipe with the diameter of 2-2.5 cm is selected as a framework material of the shading shed frame, the shading shed frame with the ground clearance of 150-160 cm is built, and the area size is the same as that of the slotting bed. The sunshade shed frame is covered with a sunshade net, and the shading rate of the sunshade net is about 70-85%.
(4) collecting and processing cutting slips:
In the last 6 th month, the tender branches of annual branches, which sprout and grow, are collected from good-growing Tilia miqueliana plants without diseases and insect pests and used as cuttings. Immediately soaking the base part of the cutting into a container filled with clear water or wet sand for keeping moisture, and covering a plastic film to prevent the tender branches and leaves from water loss and wilting. Cutting the cutting slips indoors or in shade, cutting semi-lignified twigs with the length of 10-12 cm from the base parts of the cutting slips to serve as the cutting slips, reserving 1-2 complete leaves at the upper ends of the cutting slips, binding every 30-50 cut cutting slips into a bundle, and soaking the base parts of the cutting slips in rooting liquid for 3-6 hours. The rooting agent is treated with 100ppm IBA alone or 50ppm IBA and 50ppm NAA in combination.
(5) cuttage:
And selecting a time period with weak illumination before and after sunset or in the morning for local cuttage. And (3) beating small insertion holes with small sticks with the diameter of 0.6-1.0 cm to assist in-situ cutting, inserting 1/3-1/2 lower portions of the cutting slips into the soil, wherein the plant spacing is 8-10 cm, the row spacing is 15-20 cm, the blade orientations are consistent and are not overlapped, and the base portions of the cutting slips are lightly compacted during cutting. When the cutting slips are inserted on the spot, a sprayer or a shower head is used for replenishing water in time, so that the leaves are kept moist and do not lose water. And immediately spraying the mixed solution of 600-1000 times of carbendazim and 1000-2000 times of insecticide on the cutting blades after all cuttings of each cutting bed are cut. After the cuttage is finished, a temperature and humidity recorder with an external probe is placed, a film and a sunshade net are sequentially covered, and the periphery of the film and the sunshade net is fixed by bricks, soil, river sand and other materials to prevent the film and the sunshade net from being blown up by wind.
(6) Post-cuttage management
after the cuttage is finished, no water is accumulated after rain, and special management is not needed in other aspects. And after 50-60 d of cutting, successively uncovering two ends of the film and the whole film, hardening the seedlings for 1-2 weeks, then uncovering the sunshade net, and then managing according to the conventional cultivation technical requirements of garden seedlings.
after 55d of cuttage, the two ends of the film are sequentially uncovered for acclimatization for 2d, then the film is completely uncovered, and the influence of different leave treatment on cuttage rooting is investigated. The result is that the average rooting rate of 2 leaves left at the top of the cutting is 83.33 percent, and the highest rooting rate reaches 90 percent; while the average rooting rate of the remaining 1 leaf is 56.67%, and the highest rooting rate is 70%. Therefore, in the Tilia miqueliana green branch cutting seedling raising, the proper leaf number needs to be determined according to the size of the tender branch leaves, and 2 leaves are preferably left at the top end of the cutting slip when the leaf shape is small; in the case of large leaf shape, 1 leaf is preferably left, and proper leaf retention is favorable for improving the survival rate of cutting and rooting.
the invention simplifies the cutting facility and the operation link, reduces the production cost, can perform the cutting on the spot, does not need the later management and the transplantation, has the cutting rooting rate as high as 90 percent and the average rooting number of the cutting slips more than 7, and is beneficial to the rapid propagation, the popularization and the application of the rare plant Tilia miqueliana seedlings. The invention can not only stably obtain higher cutting rooting survival rate, but also has low requirements on cutting facilities, environmental control and the like, simplifies the operation link, reduces the production cost, and is easy to accept, learn, master and apply by common nursery stock producers.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A simple in-situ green branch cuttage method for Tilia miqueliana Maxim is characterized by comprising the following steps: (1) preparing an slotting machine: arranging the land with loose surface soil layer into a cutting bed for in-situ cutting; (2) constructing a film-covered arched shed: building an arched shed above the slotting machine, and covering a film on the arched shed; (3) constructing a shading shed frame: building a shading shed frame above the film-covered arched shed, wherein a shading net covers the shading shed frame; (4) collecting and processing cutting slips: collecting current-year tender branches from Tilia miqueliana plants as cuttings in the middle ten days of 4 months to the upper ten days of 6 months or in the last 8 months to the upper ten days of 9 months, shearing cutting slips from the bases of the cuttings, and bundling the cuttings into bundles, wherein the bases of the cutting slips are soaked by a rooting agent; (5) cuttage: carrying out on-site cutting on the cutting slips by using a stick for assisting, inserting the cutting slips into soil, compacting the base parts of the cutting slips during cutting, spraying a bactericidal insecticide, and sequentially covering a film and a sunshade net; (6) and (3) management after cuttage: and (4) after 50-60 days of cuttage, taking down the film, hardening the seedlings for 1-2 weeks, taking down the sunshade net, and then managing according to the conventional cultivation technical requirements of garden seedlings.
2. the simple in-situ green branch cuttage method for tilia miqueliana as claimed in claim 1, wherein in step (1), the land of the land parcel is turned over, loosened and broken to loosen the surface soil layer of the land parcel; the width of the slotting machine is 110-130 cm, and the length of the slotting machine is 10-20 m; the slotting machine is in the north-south direction, and the bed surface is flat and level with the ground.
3. the simple in-situ green branch cuttage method for tilia miqueliana as claimed in claim 1, wherein step (1) further comprises perforating clay hardened on the surface soil layer of the cuttage bed, and pouring sand for cuttage; and (2) before in-situ cuttage, the well-arranged cuttage bed is watered thoroughly, so that the soil fully absorbs water, and the surface soil layer is kept in a wet state.
4. The simple in-situ green branch cuttage method for tilia miqueliana as claimed in claim 1, wherein the skeleton material of the film-coated arched shed in step (2) is bamboo rod, bamboo sheet, iron bar or glass fiber reinforced plastic elastic rod; the width of the shed is 110-130 cm, and the height of the shed is 40-50 cm above the ground; the horizontal pole interval of tectorial membrane arched shed's skeleton is 0.8 ~ 1m, the longitudinal rod at tectorial membrane arched shed top is bound through iron wire or rope and horizontal pole.
5. The simple in-situ green branch cuttage method for tilia miqueliana as claimed in claim 1, wherein the framework material of the shade shed frame in step (3) is bamboo pole, bamboo sheet, iron bar, glass fiber reinforced plastic elastic rod or hollow iron pipe; the shading rate of the sunshade net is 70-85%.
6. the simple in-situ green branch cuttage method for tilia miqueliana as claimed in claim 1, wherein in step (3), the width of the shade shed frame is 120-140 cm, the height of the shade shed frame above the ground is 70-80 cm, and the distance between the shade shed frame and the height of the film covered arch shed is not less than 30 cm.
7. The simple on-site green branch cuttage method for tilia miqueliana as claimed in claim 1, wherein in step (3), the sunshade shed comprises a shed with a height above the ground of 150-200 cm, and the sunshade area of the sunshade shed is determined according to the land occupation area of the cuttage bed.
8. The simple in-situ cutting method for green branches of tilia miqueliana as claimed in claim 1, wherein the cuttings collected from the middle ten days to the upper 6 th of month in step (4) are taken from the twig of the annual branch from which the upper lateral bud germinates and grows, and the cuttings collected from the lower 8 th to the upper 9 th of month are taken from the middle-upper twig of the annual lateral branch; immediately carrying out film covering and moisture preservation treatment on the collected cuttings before cutting the cuttings; the length of the cut cuttings is 10-12 cm; the rooting agent is 100ppm of indoleacetic acid IBA or a mixed solution of 50-100 ppm of indoleacetic acid IBA and 50ppm of alpha-naphthylacetic acid NAA; and (4) soaking the mixture for 3-6 hours by using a rooting agent.
9. The simple local green branch cuttage method for tilia miqueliana as claimed in claim 1, wherein in step (5), the local cuttage is performed before and after sunset or in the morning and in the weak light; the diameter of the rod is 0.6-1.0 cm; 1/3-1/2 at the lower part of the cutting are inserted into the soil, the plant spacing is 8-10 cm, and the row spacing is 15-20 cm; and timely replenishing water to the leaf surfaces of the cutting slips in the process of inserting the cutting slips into the soil.
10. The simple in-situ green branch cutting method for tilia miqueliana as claimed in claim 1, wherein no water is accumulated after the cutting in step (6) is completed.
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