CN111328614A - Two-stage seedling raising method for planting and burying seedlings of Symplocos chinensis seeds and mouse vectors - Google Patents
Two-stage seedling raising method for planting and burying seedlings of Symplocos chinensis seeds and mouse vectors 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
- A01G17/00—Cultivation of hops, vines, fruit trees, or like trees
- A01G17/005—Cultivation methods
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C1/00—Apparatus, or methods of use thereof, for testing or treating seed, roots, or the like, prior to sowing or planting
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C1/00—Apparatus, or methods of use thereof, for testing or treating seed, roots, or the like, prior to sowing or planting
- A01C1/06—Coating or dressing seed
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C1/00—Apparatus, or methods of use thereof, for testing or treating seed, roots, or the like, prior to sowing or planting
- A01C1/08—Immunising seed
Abstract
The Symplocos chinensis tree species are various, wherein part of Symplocos chinensis tree species have pharmaceutical chemical raw materials or landscaping values, but the Symplocos chinensis tree species have deep after-ripening characteristics and are difficult to artificially propagate, grow seedlings and produce, the domestication and cultivation utilization of the Symplocos chinensis tree species is basically in a blank state, the Symplocos chinensis is one of the plant species, the Symplocos chinensis is a evergreen small tree, the tree body is provided with a pendulous shape and a leaf dense leather long needle-shaped cape, the ecological adaptability and the environmental stress resistance are strong, the Symplocos chinensis tree species have obvious landscaping values, but the seedling rate of the seed seedling and the cuttage seedling is extremely low, the production significance is not achieved, and the next step of research is needed, so that the method for the Symplocos chinensis tree species-Symplocos chinensis seedling planting and the strip burying two-stage seedling.
Description
Technical Field
The invention relates to the technical field of artificial propagation and seedling raising of tree species, in particular to a two-stage seedling raising method of Symplocos chinensis seed-mouse vector seeding and strip burying.
Background
The Symplocos chinensis tree species are various, wherein part of Symplocos chinensis tree species have pharmaceutical chemical raw materials or landscaping values, but the Symplocos chinensis tree species have deep after-ripening characteristics and are difficult to artificially propagate, grow seedlings and produce, the domestication and cultivation utilization of the tree species are basically in a blank state, the old mouse vector is a evergreen small arbor, the tree body is in a pendulous shape, the leaves are dense, leather and long scalded needles, the ecological adaptability and the environmental stress resistance are strong, the Symplocos chinensis tree species have obvious landscaping values, but the seedling rate of the seed seedling and the cutting seedling is extremely low, the production significance is not realized, and the next step of research is needed, so that the method adopts a method of the Symplocos chinensis tree species, namely the method of sowing the mouse seedling and embedding two-stage seedling, and the method of planting the. There is no report of the same method so far through searching.
Disclosure of Invention
The invention aims to provide a two-stage seedling raising method for sowing and burying Mickey mouse seedlings of Symplocos serrata seeds, which enables the seedling rate of the Mickey mouse seedlings to reach more than 85% so as to meet the actual production requirement. Repeated experiments show that if only seeds are adopted for seeding and seedling raising, the emergence rate is too low, and the survival rate of the seedlings raised by cutting is basically 0, so that the propagation coefficient of the seedlings is increased. Therefore, the two-stage seedling raising method provided by the invention is designed, the propagation coefficient of the seedlings is effectively improved, and the actual production requirement is met.
The specific seedling raising method comprises the following steps:
1. cultivation of seeding
1.1 seed Collection
Selecting the adult mother tree which grows robustly and has good crown shape and uniform and full fruit and is more than 5 years old for seed collection, wherein the seed collection period is as follows: collecting the seeds in the period from 8 late ten days to 9 middle ten days to the period when the seeds begin to turn purple black, piling, retting, washing, remaining the submerged large seeds and drying.
1.2 seed storage
Executing GB/T10016 standard, selecting ventilated and ventilated indoor sand storage for airing seeds, soaking sterilized seeds in 500 times of 50% carbendazim solution, uniformly mixing seeds with 60% humidity clean sand (river) seeds (the seeds are held by hands to form a cluster without dripping water and loosening) according to a proportion, stacking thick layers of about 40 cm, or putting the seeds by using a wooden box and a bamboo frame, controlling the temperature to be between 0 and 15 ℃, and carrying out ventilation inspection at proper time.
1.3 seed quality detection for seedling raising
And executing the GB 2772 standard, and detecting the cleanliness, the thousand seed weight, the water content and the like of the seeds.
1.4 quality grading for seedling growing
The quality grading standards of the seeds for seedling culture are shown in Table 1.
TABLE 1 quality grading Standard for mouse vector seedlings
1.5 sowing
The sand-stored seeds are sowed in spring, the sowing amount is 40 g/m2 for I-grade seeds and 35 g/m2 for II-grade seeds, the seeds are sowed uniformly, the soil is covered by 0.5 cm-1 cm, and the bed surface is covered by grass or pine needles with a plastic film.
2 cultivation of seedlings by burying strips
2.1 strip burying seedling collection
Selecting and digging the seedlings for sowing and strengthening the seedlings in the same year for 10-12 months, wherein the seedlings are slightly lignified, the root systems are complete, the ground diameter is more than or equal to 0.5 cm, and the height of the seedlings is more than or equal to 50 cm.
2.2 burying strips and growing seedlings time
Digging and cultivating the seeds immediately after 10-12 months.
2.3 strip burying planting method
The buried-strip sowing seedlings are obliquely planted along two sides of a bed surface of a nursery garden in the opposite direction, the center line of the bed surface presses the seedlings to be attached to the soil surface by using bamboo rods, the seedlings are covered with 1-2 cm of soil, the rooting powder is sprayed on the bed surface of 1.5/10000(150PPM) in the shoot period and after shearing and splitting, the planting distance of the buried strips is 10-15 cm, and the oblique planting angle is 15-25 degrees, so that the top end advantage of the seedlings is inhibited, and the lateral bud germination and rooting are promoted. And the conventional weeding, drought resisting, fertilizing and cultivating management is done for the nursery.
The method has the advantages that the seeding seedling rate is 30 percent on average, the average seedling number (propagation coefficient) of the buried seedlings is 4.2-4.5, the single-year seedling rate in the two-year seedling period reaches 179.8 percent according to the seed quantity for seedling, the germination rate of the Symplocos chinensis seeds and the mouse vector seeds is low, and the tree species which can not survive in cuttage propagation is adopted, so that the problem of low propagation coefficient is solved, and the requirement of producing seedlings is effectively met.
Detailed Description
The invention relates to a two-stage seedling method for planting a Symplocos chinensis seed and planting mouse vectors to plant seedlings and bury the seedlings, which is a method for planting the Symplocos chinensis seed and mouse vectors to grow seedlings in the current year, then burying the seeds in soil on a seedbed once and spraying a plant growth agent to promote each seedling to take root and tillering and separate the plants so as to enlarge the propagation coefficient of the seedlings, wherein the plant growth agent is a root exogenous hormone and has different promotion effects on rooting and seedling growing of buried strips, and the method comprises the following steps: the rooting powder with the rooting powder content of 150PPM has the best rooting and seedling effect, and the specific method comprises the following steps:
1) seeding and seedling raising
1.1) seed Collection
Selecting adult mother trees which are robust in growth, good in crown shape and uniform and full in fruit bearing and are grown for seed collection, collecting the mature mother trees when the episperms begin to turn purple black in the middle ten days of 8-9 months, piling, retting, washing, selecting and leaving large seeds with sinking water to dry;
1.2) seed storage
Executing GB/T10016 standard, selecting ventilation and ventilation conditions for indoor sand storage in air drying, soaking the seeds in 500 times of 50% carbendazim solution for disinfection, uniformly mixing the seeds in proportion by using clean sand with 60% humidity, stacking the seeds in a 40 cm layer thick room or placing the seeds in a wooden box or a bamboo frame for stacking and storage, controlling the temperature to be between 0 and 15 ℃, and carrying out ventilation inspection in due time;
1.3) quality detection of seedlings
Executing the GB 2772 standard, and detecting the purity% of seeds: the grade I is more than 98, and the grade II is 95-98; g, thousand seed weight: grade I > 100, grade II 75 ~ 100, water content: 15 to 20 percent
1.4) sowing
The sand-stored seeds are sowed in spring, in the late 2-3 middle of the month, the sowing quantity of the I-grade seeds is 40 g/m2, the sowing quantity of the II-grade seeds is 35 g/m2, the seeds are sowed evenly, the soil is covered by 0.5 cm-1 cm, and the bed surface is covered by grass or pine needles with a plastic film;
2) and cultivating the seedling with buried seedling
2.1) pressure strip burying seedling collection
Selecting and digging the seedlings for sowing and strengthening the seedlings in the same year for 10-12 months, wherein the seedlings are slightly lignified, the root systems are complete, the ground diameter is more than or equal to 0.5 cm, and the height of the seedlings is more than or equal to 50 cm;
2.2), burying time: digging and burying;
2.3) seedbed strip burying seedling raising method
The seedling seedlings are obliquely planted along two sides of a bed surface of a nursery garden in the opposite direction, the oblique planting angle is 15-25 degrees, the planting distance of buried strips is 10-15 cm, the middle line of the bed surface is pressed by a bamboo rod and tightly attached to the soil surface, the soil covers the seedling stem and the seedling tip by 1-2 cm, the bed surface is sprayed by rooting powder with the concentration of 150PPM after the seedling stem and the seedling tip are cut and separated, and the average propagation coefficient of the buried strip seedlings can reach 4.2-4.5 by using the method.
The examples and comparative tests are as follows:
seedling test report of Symplocos racemosa seeds (Symplocos racemosa, and Rhus succedanea)
Through investigation and screening, in 28 kinds of Symplocos chinensis tree species distributed in Guizhou, the Symplocos chinensis, the Rhus verrucosa and the Symplocos chinensis have outstanding landscaping excellent shapes, can be used as excellent native greening tree species for domestication and utilization in landscaping, and performs seed seedling raising tests of 3 tree species for summarizing corresponding tree species seedling raising technical measures.
1 test Material
Total Symplocos racemosa seeds are collected from forest margins of natural protection areas of big Shahe of Guizhou county, Zhenzui City, Zunyi City.
Meishan vitriol seeds are collected from forest margins of natural protection areas of big Shahe of Guizhou, Zhenzui City, Zunyi City, and naturally grow Meishan vitriol healthy trees.
Rhus genius seeds collected from the Honghua Bao area in Zuyi City, Zuyi Fenghuangshan country forest, Dalongshan mountain forest, naturally grown to form trees.
2 test methods and procedures
2.1 test methods
The single-factor multi-level contrast seedling raising test of different seedling planting modes and unified gibberellin treatment is respectively carried out on 3 tree seeds: 3 bud-planting modes are set, namely, seeds are planted and sown (natural bud-planting), wet sand is accumulated to bud-planting, and C is spread and dried for storage (no bud-planting); gibberellin treatment, namely 100PPM gibberellin spraying treatment is carried out on seedbed seeds in the spring germination period.
2.2 test procedure
(1) Seed collection
Total Symplocos chinensis, in the middle ten days of the seed collection period 9 months, when the testa begins to turn yellow brown, the testa is collected, piled, retted and softened, washed with clear water, eluted to collect the testa, settled, large and full seeds, and dried for later use.
Meishan vitriol-when the testa begins to turn yellow brown in the middle of 9 months of the seed collection period, after collection, stack and soften, wash with clear water, elute testa, select and leave the big bottom-settling and full seed grains, dry for later use.
And 2, carrying out arrow-old mice-in the late 8 th of the seed collection period, when the episperm begins to turn brown and black, stacking and softening after collection, washing with clear water, eluting the episperm, selecting and reserving large-sized and full seeds, and airing for later use.
(2) Soil preparation bed
The sandy bed in the test is applied with the humus soil and the carbendazim, evenly stirred and leveled, and is slightly higher than the bed ridge or leveled for standby.
(3) Seed treatment and sowing
A, collecting and sowing (natural root bud), collecting seeds, washing, drying, airing and dibbling immediately, controlling the sowing density (5 x 5) cm or so, covering soil for 1-2 cm, spraying clear water on a bed surface, and covering pine needles for moisture preservation.
B, wet sand stratification, germination, seed collection, washing and air drying, and cleaning wet sand 4: 1 mixing, indoor stacking, film covering for warming and moisturizing, turning over and checking in due time, dibbling in 3 months of spring at the sprouting stage, controlling (5 x 5) cm or so, covering soil for 1-2 cm, spraying clear water on the bed surface, and covering pine needles for moisturizing.
C, spreading and airing for storage (without bud), picking seeds, washing and airing, naturally spreading and airing indoors for storage, dibbling in a 3-month sprouting period in spring, controlling (5 x 5) cm, covering soil to be 1-2 cm, spraying clear water on a bed surface, and covering pine needles for moisture preservation.
(4) Gibberellin treatment
The seeding treatment is carried out once by 100PPM gibberellin spraying for all 3 tree seeds about 10 days after the spring germination period seeding, and the seed layer is wet and thoroughly soaked.
3 test site and time
Test site: a sand bed for seedling raising and planting is arranged in a test field for collecting and breeding the mountain vitriol seed germplasm in the institute of forestry science and research in Zunyi, and the sowing area per test treatment is 1 square meter (the sowing amount is about 400 grains, and 130 grains are measured per repetition according to 3 repeated divisions).
Test time: 8 months in 2017 to 12 months in 2018. Completing test seed collection from 8 months to 9 months in 2017; the sowing and the picking are finished in 10 last ten days of 2017; completing seeding in two horizontal test treatments of wet sand accumulation and germination accumulation and spreading and airing storage (no germination) in 2018 and 3 months to complete gibberellin spraying treatment; and 11 months in 2018, 4 months, test management and observation, and test determination in 12 months in 2018.
4 analysis of test results
4.1 test results
Test observation and determination results show that the general alum paradisi and the Meishan alum 2 trees have no germination after each test treatment and seeding; in the middle 5 th month of the time when the mouse sagittaria seeds begin to sprout and emerge, the highest germination rate is 42.8 percent, and the germination rates in different treatments are obviously different: the highest germination rate of 42.8 percent is achieved by sowing and seedling raising through wet sand planting bud treatment, namely harvesting and harvesting
The germination rate of the sowing, sowing and seedling raising is 9.7%, and the germination rate of the sowing, seedling raising is 0 without the need of standing bud, spreading and airing, and storing (test result of each test treatment test is shown in a test result table of sowing and seedling raising of Symplocos racemosa (Total Symplocos-Meishan alum-rat vector)).
Determination table of seed seedling test results of Symplocos racemosa (Symplocos racemosa-Meishan alum-Rhus)
4.2 assay analysis
The above; the germination rates of the seedlings of the Symplocos racemosa and the Symplocos racemosa are 0 in the tests, the after-ripening conditions of the seeds of the two trees are further tested and explored to find the ubiquitous seed after-ripening habit of the Symplocos racemosa, the environmental conditions required by different trees for completing the after-ripening of the seeds are mastered and adjusted, the promotion of the after-ripening of the seeds is a key for solving the problem that the seeds of the Symplocos racemosa are difficult to breed, and the test result shows that the mouse adopts the wet sand bud as a feasible way for promoting the after-ripening of the seeds, and the germination rates of the seedlings of the sowing and the seedlings can.
2. Asexual propagation seedling test report of Symplocos racemosa (Total Symplocos-Meishan vanadium-old mouse vector)
Through investigation and screening, in 28 kinds of Symplocos chinensis tree species distributed in Guizhou, the Symplocos chinensis, the Rhus verrucosa and the Symplocos chinensis have outstanding landscaping excellent shapes, can be used as excellent native greening tree species for domestication and utilization in landscaping, and performs asexual propagation seedling-raising tests of 3 tree species for summarizing corresponding tree species seedling-raising technical measures.
1 test Material
Total Symplocos chinensis cutting slips (spikes) -collected from forest margins of natural protection areas of big Shahe of Guizhou, Zhenzui City, Zunyi City.
Meishan vitriol cuttings (spikes) -collected from forest margins of natural protection areas of big Shahe river of Guizhou, Zhenzui City, Zunyi City, and the like, and growing Meishan vitriol into annual healthy branches of trees.
Aged mouse vector cutting (ear) -collected from Honghua Bao district in Zuyi city, Phoenix mountain country forest, Dalongshan mountain forest, in Zuyi city, the aged mouse vector naturally grows into an annual healthy branch.
Annual rat-oriented seeding-alum seeding and seedling raising test seedbed annual seedlings collected from the institute of forestry science in Zunyi.
2 test methods and procedures
2.1 test methods
Hard branch cutting seedling raising contrast tests are respectively carried out on 3 trees by carrying out different hormone cutting (ear) soaking treatment on different concentration levels, namely 3 hormones of A indole acetic acid, B naphthalene acetic acid and C rooting powder, and 3 concentration levels of- ① 100PPM, &lTtTtransformation = p &gTt & &lTt/T &gTt150PPM, &lTtTtransformation = p "&gTt (r) (three) g (r) l/T &gTt300 PPM.
A mouse with existing seed seedlings in 3 tree species selects annual healthy seedlings to carry out different-hormone different-concentration-level strip burying seedling raising contrast tests, wherein the 3 hormones are A indole acetic acid, B naphthalene acetic acid and C rooting powder, and the 3 concentration levels are- ① 100PPM, &lTtTtransformation = 2' &gTt (r) &lTt/T &gTt150PPM, &lTtTtransformation = three- (r) gTt (r) &lTt/T &gTt300 PPM.
2.2 test procedure
(1) Cutting propagation test
-picking of bars (ears): 3 kinds of cutting slips (ears) are collected simultaneously in the initial germination period of the new buds in the middle ten days of 3 months, and strong branches are fully collected, and wet towels are wrapped in thin film bags for later use after the branches are collected.
-soil preparation and bed making: the sand bed in the test is applied with humus soil and carbendazim, evenly stirred and leveled, is slightly higher or level than the bed ridge, and is covered with a mulching film for later use.
Cutting and embedding: cutting the cuttings with the length of 12-15 cm from the collected branches horizontally and obliquely, treating the cuttings by different types of trees, bundling the cuttings in groups, placing the lower ends of the cuttings into hormone solutions with corresponding treatment concentrations, soaking the soaked cuttings for 1 hour, and punching the cuttings on a prepared test sand bed to compact the cuttings.
-shading the slotting machine: and (5) building a shed for shading after the cutting, and spraying and moisturizing the cutting bed in the continuous arid period.
(2) Mouse sagitta propagation test
-soil preparation and bed making: the sandy bed in the test is applied with the humus soil and the carbendazim, evenly stirred and leveled, and is leveled with the bed ridge for standby.
Selecting seedlings and burying strips: selecting annual sowing healthy seedlings with the length of more than 40 cm, obliquely planting the seedlings at an angle of 15-25 degrees from one side to the other side of the test sand bed, covering soil on the seedling tips, pressing strips to be attached to the solid soil surface, covering soil on the strips by 1-2 cm, and watering and moisturizing in a continuous arid period.
-hormone treatment: after the layering starts to sprout and is pumped out, the bed surface spraying treatment is carried out for 1 time according to different types and different concentrations.
3 test site and time
Test site: setting a seedling growing and planting sand bed of a mountain vitriol tree seed germplasm collecting and breeding test field of Zunyi city forestry scientific research institute, and processing 30 branches in each test of a cutting breeding test; rat strip-burying breeding test 5 plants were treated per test.
Test time: 3 months in 2018 to 8 months in 2019. Branch collection and cutting treatment of cutting propagation test are completed in 3 months in 2018, and cutting and burying are performed, and test observation is performed in 4 months in 2018; and (3) finishing bed making, seedling selection and strip burying in a rat strip burying propagation test in 9 months in 2018, starting to extract tips in 4 months in 2019, carrying out hormone spraying treatment, and finishing the measurement by experimental observation from 5 months in 2019 to 8 months in 2019.
4 analysis of test results
4.1 test results
Test observation and determination results show that the total Symplocos racemosa-Meishan alum-Michelia sagittifolia 3 trees have no root and seedling after the cutting propagation is treated by various tests; but the rat vectors are utilized to sow the seedlings and bury the seedlings, the seedlings can sprout, sprout and grow into seedlings in different degrees (the seedlings sprout in the last 3 th to the middle 4 th, and the seedlings grow roots in the middle 5 th), and the rooting exogenous hormones have different promoting effects on the rooting and seedling growing of the buried seedlings, wherein: the rooting powder treated by 150PPM has the best rooting and seedling effect, and the seedling ratio is 4.2: 1 (4.2 plants per plant buried seedling on average) reaches 2.3 times of the rate of the control seedling (1.8: 1), and the rest are successively indoleacetic acid (3.4: 1) and naphthylacetic acid (3.2: 1) from high to low.
Determination table of asexual propagation seedling test results of Symplocos racemosa (Total Symplocos racemosa-Meishan alum-Rhus)
4.2 assay analysis
The general symplocos sumatra-meishanza-rat sagitta 3 tree species are difficult to be propagated and grown into seedlings by cutting, and further test and exploration are needed; the rat vector sowing seedling strip burying propagation seedling raising rate is high, a two-stage seedling raising mode of sowing seedling strip burying propagation is adopted, the total seedling raising coefficient of rat vector 2-year seedling raising reaches 179.8% and the annual average seedling raising rate reaches 89.9% calculated according to the test seedling raising rate of 42.8% and the strip burying seedling raising rate (4.2: 1), and the production guarantee requirement of rat vector tree species for early-stage propagation seedling can be basically met.
Claims (2)
1. A two-stage seedling raising method for mountain alum tree seeds, namely mouse vector seeding and strip burying is characterized in that: the method comprises the following steps of sowing the Symplocos chinensis seeds-mouse vectors to grow current-year seedlings, burying the seedlings in soil on a seedbed once, spraying a plant growth agent to promote each seedling to take root and tillere more, and expanding the propagation coefficient of the seedlings, wherein the plant growth agent is a rooting exogenous hormone and has different promotion effects on rooting and seedling growing of buried strips, and the rooting powder is treated by 150PPM (PPM) to achieve the best rooting and seedling growing effects, and the specific method comprises the following steps:
1) seeding and seedling raising
Collecting seeds, namely selecting adult mother trees which are robust in growth, good in crown shape and uniform and full in fruit bearing and grow for more than 5 years, collecting the seeds during the period that the episperm begins to turn purple black in the middle ten days of 8-9 months, piling, retting, rubbing, selecting, reserving submerged large seeds and drying the seeds;
seed storage, namely soaking sterilized seeds in 500 times of 50% carbendazim solution, airing the seeds, selecting ventilation indoor conditions and sand storage, uniformly mixing the seeds with clean sand with the humidity of 60% in proportion, stacking the seeds in a 40 cm-thick room or placing the seeds in a wooden box or a bamboo frame, stacking and storing the seeds, controlling the temperature to be between 0 and 15 ℃, and carrying out ventilation inspection at proper time;
and (3) detecting the quality of the seedlings:
purity of seeds%: the grade I is more than 98, and the grade II is 95-98; g, thousand seed weight: grade I > 100, grade II 75 ~ 100, water content: 15-20%;
sowing: the sand-stored seeds are sowed in spring, in the late 2-3 middle of the month, the sowing quantity of the I-grade seeds is 40 g/m2, the sowing quantity of the II-grade seeds is 35 g/m2, the seeds are sowed evenly, the soil is covered by 0.5 cm-1 cm, and the bed surface is covered by grass or pine needles with a plastic film;
2) and cultivating the seedling with buried seedling
Collecting seedlings for pressing and burying strips: selecting and digging the seedlings for sowing and strengthening the seedlings in the same year for 10-12 months, wherein the seedlings are slightly lignified, the root systems are complete, the ground diameter is more than or equal to 0.5 cm, and the height of the seedlings is more than or equal to 50 cm;
burying the strips: digging and burying;
seedbed strip burying seedling raising method
The seedling is obliquely planted along two sides of a bed surface of a nursery garden in the opposite direction, the oblique planting angle is 15-25 degrees, the planting distance of buried strips is 10-15 cm, the middle line of the bed surface is pressed by a bamboo rod and tightly attached to the soil surface, the soil covers the seedling stem and the seedling tip by 1-2 cm, rooting powder 150PPM is sprayed on the bed surface after the seedling stem and the seedling tip are cut and divided, and the average propagation coefficient of the buried strip seedlings can reach 4.2-4.5 by using the method.
2. The two-stage seedling raising method for the Symplocos serrata seed and the rat sagitta planting and the strip burying according to claim 1, which is characterized in that: the plant growth agent is indoleacetic acid or naphthylacetic acid or rooting powder, and the concentration is 100-300 PPM.
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