CN109769618B - Dong white pine seedling culture method - Google Patents
Dong white pine seedling culture method Download PDFInfo
- Publication number
- CN109769618B CN109769618B CN201910243869.1A CN201910243869A CN109769618B CN 109769618 B CN109769618 B CN 109769618B CN 201910243869 A CN201910243869 A CN 201910243869A CN 109769618 B CN109769618 B CN 109769618B
- Authority
- CN
- China
- Prior art keywords
- seeds
- seedling
- raising
- sowing
- days
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Cultivation Of Plants (AREA)
- Pretreatment Of Seeds And Plants (AREA)
- Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)
Abstract
The invention discloses a method for raising seedlings of eastern white pine, which is characterized in that a greenhouse is utilized to raise seedlings of eastern white pine in winter, the growing period of eastern white pine is prolonged, low-temperature freezing injury in the seedling period is avoided, and the quality of nursery stocks is improved; quartz sand is adopted to replace river sand during seed stratification, which is beneficial to improving the working efficiency during dibbling; in the sowing process, the degradable non-woven fabric nutrition pot is adopted to replace a seedling tray, a plastic nutrition pot or open field sowing, so that the times of bed changing or transplanting can be effectively reduced, and the seedling revival period is avoided; decomposed sheep manure is adopted in the culture medium to replace other decomposed organic fertilizers, so that the pH value of the soil can be improved, and the soil fertility is improved; the turfy soil is used for replacing garden soil, so that the organic matter content in the matrix is effectively improved, and the stability of the pH value of the soil is maintained; after the dibbling is finished, a layer of 0.3-0.6cm sawdust is covered on the dibble seeding, so that the seeds can be prevented from floating upwards when the watering is carried out. The invention improves the breeding quantity and quality of the nursery stock and saves the cost.
Description
Technical Field
The invention relates to the field of planting of eastern white pines, in particular to a seedling growing method of eastern white pines.
Background
East China white pine (Pinus strobus) Is a tree species which grows rapidly in the forest in the northern part of Canada and is mainly applied to the furniture and building industries. Meanwhile, eastern white pine is light and cold resistant, has beautiful tree shape, is also an excellent greening tree species, is cultivated in Canada and America mostly, and is one of the most valuable trees in the eastern North America. East China white pine seed was introduced from the United states and Liaoning pande in 1981 by the forestry science research institute of Jilin, JilinThe east of the province of Jilin province is tested by introduction and domestication, the growth development is good at present, the plant can normally bloom and fruit, the growth speed is high, and the plant is the tree species which grows fastest in the field of the pine needle of Jilin province at present. Therefore, the eastern white pine is a new afforestation and greening tree species with higher economic and ecological benefits. Previous researches mostly focus on the open field seeding and seedling raising technology, the seed collecting and preparing technology, the overwintering cold-proof technology and the like of the eastern white pine, such as the seeding and seedling raising technology of the eastern white pine and the green large seedling culture technology disclosed by Chaoxing, the seeding and seedling raising technology of the eastern white pine introduced by Bailiyi, and the overwintering cold-proof test of the small arched shed for the 1-year seedlings of the eastern white pine disclosed by Sun Yanhui. The two traditional methods for raising the seedlings of the eastern white pine are both sown in spring, the growing period of the seedlings in the open field of the first year is less than 7 months, the accumulation and the growing amount of dry matters of the eastern white pine are influenced, then the seedlings need to be subjected to overwintering and cold protection in Liaoning areas, the seedlings need to be subjected to overwintering and cold protection in Jilin areas for 3 years continuously, although the operations can ensure the normal and robust growth of the seedlings, the seedling-stage cold resistance of the eastern white pine is poor, the seedlings grow slowly, the winter low temperature of the Jilin province is hard to resist due to the short growing period and the small plants after the open field sowing in spring, and the arrangement of a small shed for winter for many years for cold protection is time. Meanwhile, the root system growth amount of the eastern white pine in the seedling stage is large, and the seedling death is often caused by the damaged root system in the transplanting process. Therefore, the two reports disclose the technology for seedling cultivation, which has great limitation, heavy and complex work for overwintering in the later period of open field and high loss of transplanted seedlings.
Disclosure of Invention
In order to solve the problems, the invention provides a seedling raising method for eastern white pine, which adopts a sunlight greenhouse container for raising seedlings in winter for more than 150 days, carries out field planting in a soil-block garden in spring, leads seedlings to branch and high growth in autumn, shortens the seedling raising period of the eastern white pine, strengthens the growth of the eastern white pine seedlings, shortens the winter-proof years, reduces the transplanting steps, is beneficial to utilizing the idle time in winter to carry out seedling raising, and improves the seedling raising quantity and quality.
In order to achieve the purpose, the invention adopts the technical scheme that:
a method for raising seedlings of eastern white pines comprises the following steps:
s1, seed preparation
Seed collection
The method comprises the following steps of (1) carrying out seed collection in the middle and last ten days of 8 months every year, when the color of eastern white pinecone is changed into purple or brown, and the strobilus is in the optimal seed collection period when the strobilus is not cracked, after the strobilus is collected, placing the strobilus in a ventilation drying place for drying for 15-20 days, separating seeds in the strobilus after the strobilus is cracked, removing seed wings after kneading, and placing clean seeds in a shade drying place for storage;
② lamination of seeds
In the middle and last ten days of 10 months, taking out the seeds which are dried in the shade and stored, respectively soaking the seeds and the quartz sand for 30min by adopting a 0.5 percent potassium permanganate solution, then respectively washing the seeds and the quartz sand for more than 3 times by using clear water, soaking the cleaned seeds for more than 36 hours by using the clear water, and replacing the clear water once every 24 hours; after soaking, uniformly mixing the seeds and the quartz sand according to the volume ratio of 1: 3, placing the mixture in a closed plastic box, and performing lamination treatment in a refrigerator at 4 ℃ for not less than 60 days;
s2 building greenhouse
Building a greenhouse which can ensure that the temperature is above 8-10 ℃ at night and 20-25 ℃ in sunny days at daytime;
s3 germination acceleration
Taking out the seeds after stacking for 60 days, soaking the seeds in 1.0% carbendazim or chlorothalonil solution for 2 hours, cleaning the seeds for 2 times by clear water, placing the seeds in a plastic box, ensuring that the volume of the seed-sand mixture is not more than half of the box, ensuring that no water is accumulated in the bottom of the box, controlling the temperature to be about 25 ℃, accelerating germination for about 7 days, and sowing the seeds when more than 50% of the seeds are exposed to the white;
s4, sowing seeds
Preparing seedling raising substrate
Mixing turfy soil, perlite, decomposed sheep manure and carbendazim (50% of effective content) according to the volume ratio of 3:1:0.5:0.1, then adding imidacloprid according to the proportion of adding 2.0g of imidacloprid (2% of effective content) per liter, and uniformly mixing to obtain a seedling culture substrate;
② pretreatment of seedling raising container
Selecting a degradable white non-woven fabric seedling-raising bag with the diameter of 4.0cm multiplied by 7.0cm for a seedling-raising container, filling the seedling-raising matrix into the seedling-raising container 1-2 days before seeding, neatly and compactly placing the filled seedling-raising container into a seedling-raising tray with the specification of 54cm multiplied by 28cm, and watering the seedling-raising container in a spraying manner on the basis of full watering;
thirdly sowing
Sowing the eastern white pine seeds whose buds are promoted in the step S3 in a dibbling mode, sowing 1 seed in each seedling raising bag, wherein the sowing depth is 1.5-2.0 cm, covering sawdust with the thickness of 0.3-0.6cm, and finally watering thoroughly in a spraying mode;
s5 winter greenhouse management
Preventing and controlling mouse damage
Spreading rodenticide around the seedling tray, or killing mouse in a full shed in advance to prevent mouse from gnawing the seeds;
② watering
After the eastern white pine is sown, the seedlings emerge within 7-10 days, and when cloudy days, snowfall or insufficient illumination intensity is removed after the seedlings emerge, mist water spraying is carried out every day at a higher midday temperature so as to reduce the indoor temperature and improve the humidity;
③ prevention and cure of plant diseases and insect pests
The eastern white pine has less insect pests, mainly diseases, when being used for greenhouse seedling culture in winter. Wherein, the diseases are easy to occur under the conditions of large humidity and low temperature in the early and middle seedling raising stages, mainly damping-off and stem rot. From the beginning of seedling emergence, 0.5 percent (1 liter of water and 5g of hymexazol) of hymexazol (70 percent of effective content) is sprayed every week for preventing and treating;
fourthly, weeding
Weeds are not easy to grow in container seedling culture, and if weeds grow, the weeds are manually pulled out;
temperature and humidity control
In the early stage of sowing, ventilation and air exchange can be carried out according to the temperature condition in the greenhouse when the outdoor temperature is extremely low, and ventilation and air exchange should be carried out for about 2 hours at noon every day to prevent the temperature from being too high due to the rise of the outdoor temperature in 3-4 months;
s6, going out of nursery
The nursery can be outplanted from late 4 to early 5 months.
Further, the particle size of the quartz sand is 0.5 mm-1.0 mm.
Further, in the chlorothalonil solution, the mass fraction of the effective components is 50%.
Furthermore, after sowing, the seeds are not covered by a plastic film, the temperature of the matrix is easily overhigh to cause powder seeds in the middle of the day, and after sowing, water is sprayed to ensure that the surface is not dry.
Further, the filling amount of the seedling substrate is about 2/3 of the volume of the seedling bag.
Compared with the prior art, the invention has the beneficial effects that:
1) according to the method, the heat preservation effect of the sunlight greenhouse is utilized in cold areas in winter, the east China white pine which should be sowed in spring is sowed in the greenhouse about 5 months in advance, the seedling raising time of the east China white pine can be greatly prolonged, and the seedling quality is improved.
2) The invention adopts the degradable non-woven fabric nutrition pot for dibbling during sowing. Can omit steps such as changing the alms bowl, changing the bed, and convenient transportation when the nursery stock transports, can take the alms bowl to go up a mountain afforestation, effectively prevent to loose the lump.
3) In the invention, quartz sand is used for seed dressing during seed treatment. The contrast between the color of the quartz sand and the color of the seeds is bright, which is beneficial to improving the working efficiency when dibbling. Meanwhile, the quartz sand has less sundry bacteria, and is beneficial to pollution control in layering and germination accelerating periods.
4) According to the invention, the east China white pine culture medium adopts turfy soil and decomposed sheep manure. As is known, eastern white pine favors acid soil environment, and turfy soil is acid soil and has high organic matter content. The decomposed sheep manure is an acidic organic fertilizer, and the effective fertility of the culture medium can be prolonged through the slow release effect in the medium.
5) The substrate is covered with 0.3-0.6cm of sawdust after sowing, the specific gravity of the eastern white pine mature cone is 0.92-0.97, and the covering of the sawdust can prevent seeds from floating on the surface of the substrate when watering.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the spirit of the invention. All falling within the scope of the present invention.
Example 1
Test unit: jilin agriculture science and technology institute, Jilin scientific research institute. Jilin city belongs to temperate continental monsoon climate, and is clear in four seasons. Warm and rainy in summer and cold and dry in winter. The air temperature is gradually reduced from south to north under the influence of the terrain. The average annual temperature is 3.9 ℃, the average monthly temperature is the lowest, and the average annual temperature is generally between-18 ℃ and-20 ℃; the average temperature of July is highest, and is generally 21-23 ℃. The average precipitation amount all year around is 650-750 ml, and the sunshine hours all year around are 2300-2500 hours.
The test method comprises the following steps:
1) seed preparation
Seed collection
In the middle and last ten days of 8 months in 2017, harvesting the seedballs when the color of eastern white pinecones is changed into purple or brown and the cones are not cracked, placing the cones in a ventilated and dry place for drying for 15-20 days after harvesting is completed, separating seeds in the cones after the cones are cracked, removing the seeds after kneading, and placing the obtained clean seeds in a cool and dry place for storage.
② lamination of seeds
In the middle and last ten days of 10 months in 2017, taking out the seeds which are dried in the shade and stored, respectively soaking the seeds and quartz sand (the grain diameter is 0.5 mm-1.0 mm) for 30min by adopting 0.5 percent potassium permanganate solution, then washing the seeds for more than 3 times by using clear water, soaking the washed seeds for 36 hours by using the clear water, changing water every day, uniformly mixing the seeds and the quartz sand according to the volume ratio of 1: 3 after the soaking is finished, placing the seeds and the quartz sand into a closed plastic box, and performing lamination treatment in a refrigerator at 4 ℃ for 60 days;
2) greenhouse selection
The greenhouse is a greenhouse with heating glass and a rear gable wall, wherein the greenhouse is a garden No. 1 greenhouse of the agricultural institute of agriculture and technology, Jilin agriculture academy of science and technology. The temperature is above 8-10 ℃ in winter and 20-25 ℃ in daytime in sunny weather.
3) Accelerating germination
In 12 th late month of 2017, taking out the stacked seeds after 60 days from a refrigerator, soaking the seeds in a 1.0% carbendazim or chlorothalonil (active ingredient is 50%) solution for 2 hours, then cleaning the seeds for 2 times by using clear water, placing the seeds in a plastic box, ensuring that the volume of a seed-sand mixture is not more than half of that of the box, controlling the temperature to be 25 ℃ and accelerating germination for 5-7 days, and sowing the seeds after more than 50% of the seeds are exposed to the white;
4) container seeding
Preparing seedling raising substrate
Mixing turfy soil, perlite, decomposed sheep manure and carbendazim (50% of effective content) according to the volume ratio of 3:1:0.5:0.1, then adding imidacloprid according to the proportion of adding 2.0g of imidacloprid (2% of effective content) per liter, and uniformly mixing to obtain a seedling culture substrate;
② pretreatment of seedling raising container
Selecting a degradable white non-woven fabric seedling-raising bag with the diameter of 4.0cm multiplied by 7.0cm for the seedling-raising container, filling the seedling-raising matrix into the seedling-raising container 1-2 days before sowing, wherein the filling amount is about 2/3 of the volume of the seedling-raising container, neatly and compactly placing the filled seedling-raising container into a seedling-raising tray with the specification of 54cm multiplied by 28cm, and then watering the seedling-raising container in a spraying manner, wherein the total watering is performed completely;
thirdly sowing
Sowing the eastern white pine seeds which are accelerated to sprout, wherein the sowing is carried out in a dibbling mode, 1 seed is sowed in each seedling raising bag, the sowing depth is 1.5-2.0 cm, 0.3-0.6cm of sawdust covers the seedling raising bags, and finally, the water is thoroughly poured in a spraying mode.
Fourthly, covering
After sowing, spraying water according to the surface dryness and wetness degree to ensure that the surface is not dry.
5) Winter greenhouse management
Preventing and controlling mouse damage
In 12 months of 2017, the method enters the whole greenhouse for rat damage prevention and control, and raticide is sown in the greenhouse.
② watering
After the eastern white pine is sown, the seedlings emerge in 7-10 days (1 month and early 2018), and when cloudy days, snowfall or insufficient illumination intensity is removed after the seedlings emerge, mist water spraying is carried out at a higher midday temperature every day so as to reduce the indoor temperature and improve the humidity.
③ prevention and cure of plant diseases and insect pests
The eastern white pine has less insect pests, mainly diseases, when being used for greenhouse seedling culture in winter. Wherein, the diseases are easy to occur under the conditions of large humidity and low temperature in the early and middle seedling raising stages, mainly damping-off and stem rot. From the emergence of seedlings, 0.5% of hymexazol (70% effective content) is sprayed every week for control.
Fourthly, weeding
The weeds in the container seedlings are not easy to grow, and if the weeds grow, the weeds are manually pulled out.
Temperature and humidity control
At the end of 2018, 1-2 months, the outdoor temperature is extremely low, ventilation can be performed according to the illumination intensity and the temperature condition in the greenhouse, and the greenhouse heat-preservation cotton quilt is put down at night. But in 2018, in 3-4 months, the outdoor temperature rises again, and the air is ventilated for about 2 hours at noon in sunny days, so that the temperature is prevented from being overhigh.
6) Coming out of nursery
And transferring to a Sihe test nursery of forestry scientific research institute in Jilin city in the 4 th month of 2018.
And (3) test results:
in a 1000-grain sowing test, the average germination rate is 92.7 percent; the east China white pine seedling grows robustly and well, the root system is developed, the second section of the east China white pine starts to grow when the east China white pine leaves the shed at the end of 4 months in 2018, a small amount of transportation loss is removed after the east China white pine seedling is transferred and transported, and the east China white pine seedling survives.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (5)
1. A method for raising seedlings of eastern white pine is characterized in that: the method comprises the following steps:
s1, seed preparation
Seed collection
The method comprises the following steps of (1) carrying out seed collection in the middle and last ten days of 8 months every year, when the color of eastern white pinecone is changed into purple or brown, and the strobilus is in the optimal seed collection period when the strobilus is not cracked, after the strobilus is collected, placing the strobilus in a ventilation drying place for drying for 15-20 days, separating seeds in the strobilus after the strobilus is cracked, removing seed wings after kneading, and placing clean seeds in a shade drying place for storage;
② lamination of seeds
In the middle and last ten days of 10 months, taking out the seeds which are dried in the shade and stored, respectively soaking the seeds and the quartz sand for 30min by adopting a 0.5 percent potassium permanganate solution, then respectively washing the seeds and the quartz sand for more than 3 times by using clear water, soaking the cleaned seeds for more than 36 hours by using the clear water, and replacing the clear water once every 24 hours; after soaking, uniformly mixing the seeds and the quartz sand according to the volume ratio of 1: 3, placing the mixture in a closed plastic box, and performing lamination treatment in a refrigerator at 4 ℃ for not less than 60 days;
s2 building greenhouse
Building a greenhouse which can ensure that the temperature is above 8 ℃ at night and is 20-25 ℃ in sunny days in the daytime;
s3 germination acceleration
Taking out the seeds after stacking for 60 days, soaking the seeds in 1.0% carbendazim or chlorothalonil solution for 2 hours, cleaning the seeds for 2 times by clear water, placing the seeds in a plastic box, ensuring that the volume of the seed-sand mixture is not more than half of the box, ensuring that no water is accumulated in the bottom of the box, controlling the temperature to be about 25 ℃, accelerating germination for about 7 days, and sowing the seeds when more than 50% of the seeds are exposed to the white;
s4, sowing seeds
Preparing seedling raising substrate
Mixing turfy soil, perlite, decomposed sheep manure and 50% effective content carbendazim according to the volume ratio of 3:1:0.5:0.1, then adding 2.0g of 2% effective content imidacloprid per liter, and uniformly mixing to obtain a seedling culture substrate;
② pretreatment of seedling raising container
Selecting a degradable white non-woven fabric seedling-raising bag with the diameter of 4.0cm multiplied by 7.0cm for a seedling-raising container, filling the seedling-raising matrix into the seedling-raising container 1-2 days before seeding, neatly and compactly placing the filled seedling-raising container into a seedling-raising tray with the specification of 54cm multiplied by 28cm, and watering the seedling-raising container in a spraying manner on the basis of full watering;
thirdly sowing
Sowing the eastern white pine seeds whose buds are promoted in the step S3 in a dibbling mode, sowing 1 seed in each seedling raising bag, wherein the sowing depth is 1.5-2.0 cm, covering sawdust with the thickness of 0.3-0.6cm, and finally watering thoroughly in a spraying mode;
s5 winter greenhouse management
Preventing and controlling mouse damage
Spreading rodenticide around the seedling tray, or killing mouse in a full shed in advance to prevent mouse from gnawing the seeds;
② watering
After the eastern white pine is sown, the seedlings emerge within 7-10 days, and when cloudy days, snowfall or insufficient illumination intensity is removed after the seedlings emerge, mist water spraying is carried out every day at a higher midday temperature so as to reduce the indoor temperature and improve the humidity;
③ prevention and cure of plant diseases and insect pests
From the beginning of seedling emergence, 0.5% of hymexazol is sprayed every week for prevention and control;
fourthly, weeding
Weeds are not easy to grow in container seedling culture, and if weeds grow, the weeds are manually pulled out;
temperature and humidity control
In the early stage of sowing, when the outdoor temperature is extremely low, ventilation is carried out according to the temperature condition in the greenhouse, and in 3-4 months, ventilation is carried out for 2 hours at noon every day to prevent the temperature from being too high;
s6, going out of nursery
The nursery can be outplanted from late 4 to early 5 months.
2. The eastern white pine seedling raising method according to claim 1, characterized in that: the particle size of the quartz sand is 0.5 mm-1.0 mm.
3. The eastern white pine seedling raising method according to claim 1, characterized in that: in the chlorothalonil solution, the mass fraction of active ingredients is 50%.
4. The eastern white pine seedling raising method according to claim 1, characterized in that: after sowing, plastic films are not needed to cover the seeds, the temperature of the matrix is easily overhigh to cause powder seeds in the middle of the day, and after sowing, water is sprayed to ensure that the surface is not dry.
5. The eastern white pine seedling raising method according to claim 1, characterized in that: the filling amount of the seedling raising substrate is 2/3 of the volume of the seedling raising bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910243869.1A CN109769618B (en) | 2019-03-28 | 2019-03-28 | Dong white pine seedling culture method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910243869.1A CN109769618B (en) | 2019-03-28 | 2019-03-28 | Dong white pine seedling culture method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109769618A CN109769618A (en) | 2019-05-21 |
| CN109769618B true CN109769618B (en) | 2021-02-02 |
Family
ID=66491384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910243869.1A Expired - Fee Related CN109769618B (en) | 2019-03-28 | 2019-03-28 | Dong white pine seedling culture method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109769618B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111165115A (en) * | 2020-03-06 | 2020-05-19 | 四川巴噜帮科技有限公司 | Small berry seedling growing method |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1264398C (en) * | 2003-12-19 | 2006-07-19 | 华利军 | Culturing method for sapling of Chinese pine or Chinese juniper by container in greenhouse |
| CN102318546B (en) * | 2011-06-30 | 2012-11-28 | 北京林业大学 | Method for growing container seedlings of cork oak in winter |
| CN104541906A (en) * | 2015-01-26 | 2015-04-29 | 交城县青木农林科技有限公司 | Container nursery method for white bark pine seeds |
-
2019
- 2019-03-28 CN CN201910243869.1A patent/CN109769618B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN109769618A (en) | 2019-05-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101036446A (en) | Quick propagating method of megranate | |
| CN102113445B (en) | Method for raising seedlings of Pinus kesiya var.langbianensis by efficient twig cuttage propagation | |
| CN101491188B (en) | Summer mulberry garden-building method | |
| CN102714998A (en) | Bud-stock grafting method of tea-oil tree improved variety | |
| CN111758529A (en) | Cuttage seedling raising method for taxus chinensis in greenhouse container and medium | |
| CN102318546B (en) | Method for growing container seedlings of cork oak in winter | |
| CN107912221A (en) | A kind of implantation methods of high quality oils olive | |
| CN110915512B (en) | Seedling raising method for controlling roots of castanea mollissima tannin extracts through efficient bacteriostasis | |
| CN106577216B (en) | Method for promoting germination of lateral buds of succulent plants in Crassulaceae | |
| CN117136782B (en) | Container seedling raising method for introducing coastal pine postsetting seeds in north | |
| CN108605617B (en) | Sowing and seedling raising method for European mountain ash facility | |
| CN110278822B (en) | Method for cultivating peach trees in high-altitude areas | |
| CN109769618B (en) | Dong white pine seedling culture method | |
| CN108651074A (en) | Have a smile on one's face the container seedling culture method of germplasm in a kind of cold-resistant Taiwan | |
| CN102715019B (en) | Long forest series and Jinyin series camellia oleifera bud-stock grafting method | |
| CN112075279B (en) | Method for introducing and cultivating waxberry trees in north | |
| CN112042459B (en) | Annual double-cropping cultivation method for greenhouse grapes | |
| CN109566403B (en) | Method for producing seeds by hybridizing pumpkins in two seasons in one year | |
| CN113331013A (en) | Method for sowing and forcing cultivation of pine needle lily | |
| CN113367043A (en) | Sequoia tsugae cutting medium and seedling raising method thereof | |
| CN107258304B (en) | Cultivation method for crop rotation of eggplants and rice in winter and spring | |
| CN112314374A (en) | Method for cultivating early-maturing asparagus bean variety in coastal region of south China in open field in winter and spring | |
| CN111616040A (en) | Method for cultivating papaya seedlings by using plug trays | |
| CN105875315A (en) | Protected non-dormancy peach cultivation method | |
| CN111788977B (en) | Planting method for increasing survival rate of cryptomeria fortunei seedlings |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210202 |