CN113179880B - Kandelia candel seedling growing method - Google Patents
Kandelia candel seedling growing method Download PDFInfo
- Publication number
- CN113179880B CN113179880B CN202110595959.4A CN202110595959A CN113179880B CN 113179880 B CN113179880 B CN 113179880B CN 202110595959 A CN202110595959 A CN 202110595959A CN 113179880 B CN113179880 B CN 113179880B
- Authority
- CN
- China
- Prior art keywords
- seedling
- soil
- kandelia candel
- hypocotyls
- seedlings
- 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.)
- Active
Links
Classifications
-
- 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
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
- A01G22/05—Fruit crops, e.g. strawberries, tomatoes or cucumbers
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/10—Growth substrates; Culture media; Apparatus or methods therefor based on or containing inorganic material
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/20—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/20—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material
- A01G24/22—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material containing plant material
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Botany (AREA)
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Cultivation Of Plants (AREA)
- Fertilizers (AREA)
Abstract
The invention provides a method for raising seedlings of Kandelia candel.A nursery garden is selected and arranged in a low tide beach, the hypocotyl is soaked in fresh seawater and then inserted into nutrient soil prepared from seawater, Kandelia candel leaching liquor, laterite, animal excrement, sandy soil, calcium nitrate and calcium superphosphate, nutrition is supplemented for the seedlings, the root system development of the Kandelia candel is promoted, and the salt tolerance of the Kandelia candel is improved, so that the survival rate of the seedlings and the survival rate of afforestation are improved, the lodging rate is reduced, and the stress resistance of the seedlings is improved and the lodging rate is reduced by adjusting the culture conditions during seedling raising; the Kandelia candel seedlings cultivated by the seedling cultivation method can normally grow on the tidal flat with leaner and higher salinity, the growth range of the Kandelia candel is expanded, and the seedling cultivation method is wide in applicability.
Description
Technical Field
The invention relates to the technical field of mangrove plant cultivation, in particular to a method for raising seedlings of Kandelia candel.
Background
Mangrove is a unique woody plant community that grows in the intertidal zone of tropical and subtropical coasts. Mangrove forest has the functions of protecting dike, protecting beach, resisting pollution and purifying, is natural sea defense forest, is also a natural place where birds, fishes, shrimps, crabs and shellfish and other animals inhabit, forage and multiply, and has important functions on protecting birds, developing fishery and protecting ecological balance of river mouth coastal ecosystem. However, the current mangrove afforestation is generally carried out on a beach, the growth condition is severe, the mangrove afforestation is not only impacted by wind waves in the growth process, but also influenced by factors such as gnawing of marine animals, man-made interference, sun exposure, excessive moisture and the like, and the afforestation survival rate is low. Moreover, the mangrove growth has strict requirements on beach position, most of the mangrove grows in beach areas of muddy coastal saline soil, the sea level is continuously increased along with global warming in recent years, the beach area suitable for the mangrove growth is continuously reduced, the mangrove area is also continuously reduced, and therefore, the mangrove plant with wide growth range needs to be cultivated.
The Kandelia candel (L.) Druce is a shrub or a small tree in the family of mangrove, the fruit of the Kandelia candel is similar to a pen, the eggplant after mature is very similar, the Kandelia candel belongs to a group line in the middle and later periods of succession, the Kandelia candel mostly grows on a mud beach with a flat river mouth and bay, the Kandelia candel is one of important group species for constructing the ecological system of the mangrove forest in China, and the Kandelia candel Druce plays an extremely important ecological role in the aspects of coast, biological diversity protection and the like.
Chinese patent (CN108243859A) discloses a method for rapidly cultivating salt-tolerant Kandelia candel, which comprises the steps of collecting hypocotyls of Kandelia candel growing on a tidal flat with seawater salinity of 14-32 per mill, preparing nutrient soil from sea mud, peat soil, activated sludge, plant ash, sodium alginate, a loosening agent, phoxim, potassium dihydrogen phosphate and calcium chloride, maintaining a moist and fertile nutrient soil environment, and maintaining the salt tolerance of the Kandelia candel, so that a Kandelia candel seedling with high salinity tolerance and high transplanting survival rate can be obtained, and the Kandelia candel seedling can be planted and forestized in a deep-water beach with high salinity. However, the salt tolerance of the autumn eggplant cultivated by the method depends on the growth environment of the embryonic axis matrix, and the applicability is narrow.
Disclosure of Invention
Aiming at the problems, the invention provides a method for raising seedlings of Kandelia candel.
The invention discloses a method for raising seedlings of Kandelia candel, which comprises the following steps:
s1, site selection and soil preparation
Selecting nursery lands on low tide beaches with small wind waves and periodic seawater flooding in estuary areas; the nursery garden is provided with a seedling growing area, and the seedling growing area is subjected to soil preparation and disinfection treatment;
s2, selecting seeds
Collecting hypocotyls from 12 months to 3 months in the next year, and selecting mature, fresh and undifferentiated hypocotyls without plant diseases and insect pests for seedling culture;
s3, treating the seedling culture substrate
Mixing Kandelia candel leaching liquor, red soil, animal waste, sandy soil, calcium nitrate and calcium superphosphate, adding seawater, fully stirring uniformly, covering with a film for composting, and decomposing to obtain nutrient soil; loading the nutrient soil into nutrient bags, transporting the nutrient soil to a seedling raising area, and arranging the nutrient soil into ridges, wherein the direction of the ridges is consistent with the direction of the seawater swelling and ebbing tide;
s4, sowing
Adopting a mode of adopting and sowing at any time; cleaning the collected hypocotyls with water, soaking the hypocotyls in fresh seawater for 4-5 hours, disinfecting, and cleaning with water; during sowing, firstly watering the nutrient soil with water, then inserting hypocotyls, enabling the transplanting depth of the hypocotyls to be 2-4 cm, shading with a shading net after sowing, gradually opening the shading net to train seedlings after 2-3 true leaves grow out of the seeds, enabling the seedlings to slowly adapt to the growing environment exposed to sunlight, and avoiding the seedlings from burning the leaves due to direct sunlight.
S5, seedling management
And (3) water and fertilizer management: in the initial stage of sowing, fresh water is irrigated every day, the salinity of the soil is controlled to be 5-10 per thousand, and after 2-3 main leaves grow out of the seeds, the salinity of the soil is controlled to be 18-28 per thousand; spraying amino acid foliar fertilizer in the seedling stage, and applying base fertilizer in the fast growing stage;
and (3) pest control: timely pulling out the diseased plant, and spraying chlorothalonil; the insect pest control method comprises the following steps of (1) artificially catching marine animals, arranging a trap lamp to trap and kill adults, and spraying an insecticide regularly;
s6, seedling hardening after outplanting: when the growth height of the seedlings is 50-80 cm, outplanting, stopping fertilizing one month before outplanting, controlling the salinity of the soil to be 25-30 per thousand, and performing root cutting and heeling seedling hardening after outplanting;
s7, afforestation: and (4) conveying the seedling after seedling hardening to a forestation place to start forestation.
Further, in step S3, the ratio of seawater, Kandelia candel leaching liquor, red soil, animal waste, sandy soil, calcium nitrate and calcium superphosphate is (0.2-0.3) L: 1L: (60-80) kg: (20-40) kg: (10-15) kg: (1.2-2.5) kg: (1.5-3) kg.
Further, the seawater is seawater near a nursery land.
Further, the preparation method of the Kandelia candel leaching liquor comprises the following steps: selecting the rest hypocotyls in the step S2, cleaning, adding water with the weight being 10-12 times that of the hypocotyls, heating to 80-100 ℃, cooking for 0.5-1 h, adding perlite, continuing to cook for 0.5-1 h, cooling to 40-50 ℃, adding the bark of the Kandelia candel branches, continuing to cook for 20-30 min, and filtering to obtain a Kandelia candel leaching solution; wherein the weight ratio of the embryonic axis, the perlite and the bark of the Kandelia candel is 1: (0.3-0.4): (0.1-0.3).
Furthermore, the sandy soil is sandy soil with the sand content of 80-90%.
Furthermore, the specification of the seedling raising bag is 12cm in width and 15cm in length.
Further, in step S3, the ridge is 10-35 m long, 1-1.5 m wide and 0.5-1 m apart.
Furthermore, the salinity of the freshwater sea water is 8-10 per mill, the development of the embryonic axis is not facilitated due to overhigh salinity of the freshwater sea water, and the salt tolerance of the embryonic axis cannot be influenced due to overlow salinity of the freshwater sea water.
Further, in step S4, the ratio of the hypocotyls to the nutrient soil is 1: 0.5-1 kg.
Further, the disinfection is to put the hypocotyls into a carbendazim or chlorothalonil solution to be soaked for 5-6 minutes.
Further, the carbendazim or chlorothalonil solution is obtained by diluting the carbendazim or chlorothalonil with water to 300-500 times.
Further, in step S4, after the hypocotyls are placed, the base of the hypocotyls is pressed by hand to make the hypocotyls and the nutrient soil fully fit, so that the hypocotyls and the nutrient soil are tightly combined, and the nutrient absorption capability of the hypocotyls is improved.
Furthermore, the transmittance of the sunshade net is 50-70%.
Furthermore, the base fertilizer is applied according to the principle of 'organic fertilizer is used as a main fertilizer, chemical fertilizer is used as an auxiliary fertilizer, and a small amount of base fertilizer is applied for multiple times'.
Further, spraying chlorothalonil is to spray 800-1000 times of chlorothalonil solution with the concentration of 75% once every 5-7 days for 3-4 times.
Further, the 800-1000 times of 75% chlorothalonil liquid is 75% chlorothalonil and water according to the weight ratio of 1: mixing at a volume ratio of 800-1000.
Further, the hardening off seedlings for the root cutting and heeling in are hardening off seedlings for the root cutting and heeling in situ or hardening off seedlings for the root cutting and heeling in other places.
Further, in step S6, fresh water is irrigated for 400-600L/mu/time 7 days before the root-breaking heeling and seedling hardening, and fresh water is irrigated for 300-500L/mu/time 7 days later, so that the seawater is periodically soaked; the number of times of irrigating fresh water is 1-2 times per day.
Further, the seedling exercising time is 30-35 days.
Compared with the prior art, the invention has the beneficial effects that:
the invention relates to a method for raising seedlings of Kandelia candel.A nursery garden is selected and arranged in a low tide beach, the hypocotyl is soaked in fresh seawater and then inserted into nutrient soil prepared from seawater, Kandelia candel leaching liquor, red soil, animal wastes, sandy soil, calcium nitrate and calcium superphosphate, the nutrient soil is used for supplementing nutrition for seedlings, promoting the growth of root systems of Kandelia candel.f., improving the salt tolerance of Kandelia candel.f., improving the survival rate and afforestation survival rate of the seedlings, reducing the lodging rate, and improving the stress resistance of seedlings and reducing the lodging rate by adjusting the culture conditions during seedling raising; the Kandelia candel seedlings cultivated by the seedling cultivation method can normally grow on the tidal flat with leaner and higher salinity, the growth range of the Kandelia candel is expanded, and the seedling cultivation method is wide in applicability.
The method selects the remaining Kandelia candel embryonic axis to prepare the Kandelia candel leaching liquor, develops a new application of discomfortable seeding embryonic axis, and adds perlite and Kandelia candel bark to prepare the Kandelia candel leaching liquor in the process of preparing the Kandelia candel leaching liquor respectively, and then the Kandelia candel leaching liquor is matched with red soil, animal wastes, sandy soil, calcium nitrate and calcium superphosphate for use, so that the tannin content of seedlings is increased while nutrients are provided for the growth of seedlings, the effect of resisting the bite of marine animals is achieved, and the survival rate of the seedlings and the survival rate of afforestation are increased.
Detailed Description
In order that the technical contents of the invention may be better understood, specific examples are provided below to further illustrate the invention.
In the following embodiment of the invention, the ridge is 25 meters long, 1 meter wide and 0.5 meter apart.
The seedling raising bags used by the invention are 12cm in width and 15cm in length.
Example 1
A Kandelia candel seedling growing method comprises the following steps:
s1, site selection and soil preparation
Selecting nursery lands on low tide beaches with small wind waves and periodic seawater flooding in estuary areas; the nursery garden is provided with a seedling growing area, and the seedling growing area is subjected to soil preparation and disinfection treatment;
s2, selecting seeds
Collecting hypocotyls of local Kandelia candel in a nursery garden in 12 months to 3 months next year, and selecting mature, fresh, disease and pest free and undifferentiated hypocotyls for seedling culture;
s3, seedling raising matrix treatment
Mixing the Kandelia candel leaching liquor, laterite, cow dung, sandy soil with sand content of 80-90%, calcium nitrate and calcium superphosphate, adding seawater, fully and uniformly stirring, covering with a film for composting, and decomposing to obtain nutrient soil; loading the nutrient soil into nutrient bags, transporting the nutrient soil to a seedling raising area, and arranging the nutrient soil into ridges, wherein the direction of the ridges is consistent with the direction of the seawater swelling and ebbing tide; wherein the proportion of seawater, Kandelia candel leaching liquor, red soil, cow dung, sandy soil, calcium nitrate and calcium superphosphate is 0.3L: 1L: 75 kg: 40 kg: 15 kg: 2 kg: 3 kg;
the preparation method of the Kandelia candel leaching liquor comprises the following steps: selecting the rest hypocotyls in the step S2, cleaning, adding water with the weight 10 times that of the hypocotyls, heating to 90 ℃, cooking for 0.5h, adding perlite, continuing cooking for 0.5h, cooling to 40 ℃, adding the bark of Kandelia candel, continuing cooking for 30min, and filtering to obtain Kandelia candel leaching liquor; wherein the weight ratio of the embryonic axis, the perlite to the barks of the Kandelia candel is 1: 0.4: 0.2;
s4, sowing
Adopting a mode of adopting and sowing at any time; cleaning the collected hypocotyls with water, soaking in freshwater seawater with salinity of 9 per mill for 4.5h, soaking in 300 times of carbendazim solution for 5 min, and cleaning with water; during sowing, the nutrient soil is watered with water, and then the hypocotyls are inserted, wherein the ratio of the hypocotyls to the nutrient soil is 1: 0.5-1 kg, press the embryonic axis basal portion with the hand, make the embryonic axis fully laminate with nutrient soil, the embryonic axis depth of inserting is 2-4 centimetres, hide the shade with the sunshade net that the transmittance is 60% after the seeding is finished, after the seed grows out 2 ~ 3 true leaves, open the sunshade net gradually and refine the seedling, let the seedling slowly adapt to the growing environment that the sunshine is bare and sun, avoid the seedling to receive the direct solar radiation and burn the blade.
S5, seedling management
And (3) water and fertilizer management: in the initial stage of sowing, fresh water is irrigated for 3-5 times every day, the soil salinity is controlled to be 5-10 per thousand, after 2-3 true leaves grow out of the seeds, fresh water is irrigated for 2-3 times every day, and the soil salinity is controlled to be 18-28 per thousand; spraying amino acid foliar fertilizer for 1-2 times in a seedling stage, and applying base fertilizer for 5-8 times in a fast growth stage;
and (3) pest control: timely pulling out the diseased plant, spraying 1000 times of 75% chlorothalonil solution every 5-7 days for 3-4 times; the insect pest control method comprises the following steps of (1) artificially catching marine animals, arranging a trap lamp to trap and kill adults, and spraying an insecticide regularly;
s6, seedling hardening after outplanting: when the seedling grows to 60 cm in height, outplanting, stopping fertilizing one month before outplanting, controlling the soil salinity to be 25-30 per thousand, performing allopatric root cutting and temporary planting and seedling hardening after outplanting, hardening the seedling for 35 days, watering fresh water for 500L/mu/7 days before temporary planting and hardening the seedling, watering fresh water for 400L/mu/7 days after temporary planting and hardening the seedling, and periodically soaking the seawater; the number of times of irrigating fresh water is 1-2 times per day;
s7, afforestation: and (4) conveying the seedling after seedling exercising to a low tide beach near the bank for afforestation.
Example 2
A Kandelia candel seedling growing method comprises the following steps:
s1, site selection and soil preparation
Selecting a nursery garden to be arranged on a low tide beach which is small in wind wave and can be periodically submerged by seawater in a estuary bay area; the nursery garden is provided with a seedling growing area, and the seedling growing area is subjected to soil preparation and disinfection treatment;
s2, selecting seeds
Collecting hypocotyls of Kandelia candel around nursery land in 12-3 months per year, and selecting mature, fresh, disease and pest free and undifferentiated hypocotyls for seedling culture;
s3, seedling raising matrix treatment
Mixing the Kandelia candel leaching liquor, red soil, pig manure, sandy soil with sand content of 80-90%, calcium nitrate and calcium superphosphate, adding seawater, fully and uniformly stirring, covering with a film for composting, and decomposing to obtain nutrient soil; loading the nutrient soil into nutrient bags, transporting the nutrient soil to a seedling raising area, and arranging the nutrient soil into ridges, wherein the direction of the ridges is consistent with the direction of the seawater swelling and ebbing tide; wherein the proportion of seawater, Kandelia candel leaching liquor, red soil, pig manure, sandy soil, calcium nitrate and calcium superphosphate is 0.2L: 1L: 60 kg: 25kg of: 10 kg: 1.2 kg: 1.5 kg;
the preparation method of the Kandelia candel leaching liquor comprises the following steps: selecting the rest hypocotyls in the step S2, cleaning, adding water 12 times the weight of the hypocotyls, heating to 80 ℃, cooking for 1h, adding perlite, continuing cooking for 1h, cooling to 45 ℃, adding the bark of Kandelia candel, continuing cooking for 20min, and filtering to obtain Kandelia candel leaching liquor; wherein the weight ratio of the embryonic axis, the perlite and the bark of the Kandelia candel is 1: 0.3: 0.1;
s4, sowing
Sowing in a mode of adopting and sowing at any time; cleaning the collected hypocotyls with water, soaking in brackish water with salinity of 10 per mill for 4h, soaking in 500 times of chlorothalonil solution for 6min, and cleaning with water; during sowing, the nutrient soil is watered with water, then the hypocotyls are inserted, and the ratio of the hypocotyls to the nutrient soil is 1: 0.5-1 kg, pressing the basal part of the embryonic axis with hands to ensure that the embryonic axis is fully attached to the nutrient soil, wherein the transplanting depth of the embryonic axis is 2-4 cm, shading with a shading net with the transmittance of 60% after sowing, gradually opening the shading net to acclimatize the seedling after the seed grows into 2-3 true leaves, and slowly adapting to the growing environment exposed to sunlight to avoid the seedling from burning the leaves caused by direct sunlight.
S5, seedling management
And (3) water and fertilizer management: in the initial stage of sowing, fresh water is irrigated for 3-5 times every day, the soil salinity is controlled to be 5-10 per thousand, after 2-3 true leaves grow out of the seeds, fresh water is irrigated for 2-3 times every day, and the soil salinity is controlled to be 18-28 per thousand; spraying an amino acid foliar fertilizer for 1-2 times in a seedling stage, and applying a base fertilizer for 5-8 times in a fast growth stage;
and (3) pest control: timely pulling out the diseased plant, spraying 800 times of 75% chlorothalonil solution every 5-7 days for 3-4 times; the insect pest control method comprises the following steps of (1) artificially catching marine animals, arranging a trap lamp to trap and kill adults, and spraying an insecticide regularly;
s6, seedling hardening after outplanting: when the seedling grows to be 80 cm in height, outplanting, stopping fertilizing one month before outplanting, controlling the soil salinity to be 25-30 per thousand, performing in-situ root cutting and temporary planting and seedling hardening after outplanting, hardening the seedlings for 30 days, irrigating fresh water for 400L/mu/time before temporary planting and hardening the seedlings after root cutting, irrigating fresh water for 300L/mu/time after 7 days, and periodically soaking the seawater; the number of times of irrigating fresh water is 1-2 times per day;
s7, afforestation: and (4) conveying the seedling after seedling exercising to a low tide beach near the bank for afforestation.
Example 3
A Kandelia candel seedling raising method comprises the following steps:
s1, site selection and soil preparation
Selecting nursery lands on low tide beaches with small wind waves and periodic seawater flooding in estuary areas; the nursery garden is provided with a seedling growing area, and the seedling growing area is subjected to soil preparation and disinfection treatment;
s2, selecting seeds
Collecting hypocotyls of local or peripheral Kandelia candel in nursery garden 12 months to 3 months in the next year, and selecting mature, fresh, disease and pest free and undifferentiated hypocotyls for seedling culture;
s3, seedling raising matrix treatment
Mixing the Kandelia candel leaching liquor, laterite, cow dung, sandy soil with sand content of 80-90%, calcium nitrate and calcium superphosphate, adding seawater, fully and uniformly stirring, covering with a film for composting, and decomposing to obtain nutrient soil; loading nutrient soil into nutrient bags, transporting the nutrient soil to a seedling raising area, and placing the nutrient soil into ridges, wherein the direction of the ridges is consistent with the direction of the seawater rising and falling tide; wherein, the proportion of seawater, Kandelia candel leaching liquor, red soil, cow dung, sandy soil, calcium nitrate and calcium superphosphate is 0.3L: 1L: 75 kg: 40 kg: 15 kg: 2 kg: 3 kg;
the preparation method of the Kandelia candel leaching liquor comprises the following steps: selecting the rest hypocotyls in the step S2, cleaning, adding water with the weight 10 times that of the hypocotyls, heating to 90 ℃, cooking for 0.5h, adding perlite, continuing cooking for 0.5h, cooling to 40 ℃, adding the bark of Kandelia candel, continuing cooking for 30min, and filtering to obtain Kandelia candel leaching liquor; wherein the weight ratio of the embryonic axis, the perlite to the barks of the Kandelia candel is 1: 0.4: 0.2;
s4, sowing
Sowing in a mode of adopting and sowing at any time; cleaning the collected hypocotyls with water, soaking in freshwater seawater with salinity of 9 ‰for4.5 h, soaking in 500 times of carbendazim solution for 5 min, and cleaning with water; during sowing, the nutrient soil is watered with water, and then the hypocotyls are inserted, wherein the ratio of the hypocotyls to the nutrient soil is 1: 0.5-1 kg, press the embryonic axis basal portion with the hand, make the embryonic axis fully laminate with nutrient soil, the embryonic axis depth of inserting is 2-4 centimetres, hide the shade with the sunshade net that the transmittance is 70% after the seeding is finished, after the seed grows out 2 ~ 3 true leaves, open the sunshade net gradually and refine the seedling, let the seedling slowly adapt to the growing environment that the sunshine is bare and sun, avoid the seedling to receive the direct solar radiation and burn the blade.
S5, seedling management
And (3) water and fertilizer management: in the initial stage of sowing, fresh water is irrigated for 3-5 times every day, the soil salinity is controlled to be 5-10 per thousand, after 2-3 main leaves grow out of the seeds, fresh water is irrigated for 2-3 times every day, and the soil salinity is controlled to be 18-28 per thousand; spraying amino acid foliar fertilizer for 1-2 times in a seedling stage, and applying base fertilizer for 5-8 times in a fast growth stage;
and (3) pest control: timely pulling out the diseased plant, spraying 1000 times of 75% chlorothalonil solution every 5-7 days for 3-4 times; the insect pest control is to artificially catch marine animals, trap and kill adults by arranging a trap lamp, and regularly spray insecticide;
s6, seedling hardening after outplanting: when the seedling grows to 60 cm in height, outplanting, stopping fertilizing one month before outplanting, controlling the soil salinity to be 25-30 per thousand, performing allopatric root cutting and temporary planting and seedling hardening after outplanting, hardening the seedlings for 30 days, irrigating fresh water for 400L/mu/time before temporary planting and hardening the seedlings for 7 days, irrigating fresh water for 300L/mu/time after 7 days, and periodically soaking the seawater; the number of times of irrigating fresh water is 1-2 times per day;
s7, afforestation: and (4) conveying the seedling after seedling exercising to a plain beach for afforestation.
Example 4
A Kandelia candel seedling raising method comprises the following steps:
s1, site selection and soil preparation
Selecting nursery lands on low tide beaches with small wind waves and periodic seawater flooding in estuary areas; the nursery garden is provided with a seedling growing area, and the seedling growing area is subjected to soil preparation and disinfection treatment;
s2, selecting seeds
Collecting hypocotyls of local or peripheral Kandelia candel in nursery garden 12 months to 3 months in the next year, and selecting mature, fresh, disease and pest free and undifferentiated hypocotyls for seedling culture;
s3, treating the seedling culture substrate
Mixing the Kandelia candel leaching liquor, red soil, cow dung, sandy soil with sand content of 80-90%, calcium nitrate and calcium superphosphate, adding seawater, fully and uniformly stirring, covering with a film for composting, and decomposing to obtain nutrient soil; loading the nutrient soil into nutrient bags, transporting the nutrient soil to a seedling raising area, and arranging the nutrient soil into ridges, wherein the direction of the ridges is consistent with the direction of the seawater swelling and ebbing tide; wherein, the proportion of seawater, Kandelia candel leaching liquor, red soil, cow dung, sandy soil, calcium nitrate and calcium superphosphate is 0.3L: 1L: 75 kg: 40 kg: 15 kg: 2 kg: 3 kg;
the preparation method of the Kandelia candel leaching liquor comprises the following steps: selecting the rest hypocotyls in the step S2, cleaning, adding water with the weight 10 times that of the hypocotyls, heating to 90 ℃, cooking for 0.5h, adding perlite, continuing cooking for 0.5h, cooling to 40 ℃, adding the bark of Kandelia candel, continuing cooking for 30min, and filtering to obtain Kandelia candel leaching liquor; wherein the weight ratio of the embryonic axis, the perlite and the bark of the Kandelia candel is 1: 0.4: 0.2;
s4, sowing
Adopting a mode of adopting and sowing at any time; cleaning the collected hypocotyls with water, soaking in freshwater seawater with salinity of 9 ‰for4.5 h, soaking in 300 times of carbendazim solution for 5 min, and cleaning with water; during sowing, the nutrient soil is watered with water, then the hypocotyls are inserted, and the ratio of the hypocotyls to the nutrient soil is 1: 0.5-1 kg, pressing the basal part of the embryonic axis with hands to ensure that the embryonic axis is fully attached to the nutrient soil, wherein the transplanting depth of the embryonic axis is 2-4 cm, shading with a shading net with the transmittance of 70% after sowing, gradually opening the shading net to acclimatize the seedling after the seed grows into 2-3 true leaves, and slowly adapting to the growing environment exposed to sunlight to avoid the seedling from burning the leaves caused by direct sunlight.
S5, seedling management
And (3) water and fertilizer management: in the initial stage of sowing, fresh water is irrigated for 3-5 times every day, the soil salinity is controlled to be 5-10 per thousand, after 2-3 true leaves grow out of the seeds, fresh water is irrigated for 2-3 times every day, and the soil salinity is controlled to be 18-28 per thousand; spraying an amino acid foliar fertilizer for 1-2 times in a seedling stage, and applying a base fertilizer for 5-8 times in a fast growth stage;
and (3) pest control: timely pulling out the diseased plant, spraying 1000 times of 75% chlorothalonil solution every 5-7 days for 3-4 times; the insect pest control is to artificially catch marine animals, trap and kill adults by arranging a trap lamp, and regularly spray insecticide;
s6, seedling hardening after outplanting: when the seedling grows to 60 cm in height, outplanting, stopping fertilizing one month before outplanting, controlling the soil salinity to be 25-30 per thousand, performing allopatric root cutting and temporary planting and seedling hardening after outplanting, hardening the seedlings for 30 days, irrigating fresh water for 400L/mu/time before temporary planting and hardening the seedlings for 7 days, irrigating fresh water for 300L/mu/time after 7 days, and periodically soaking the seawater; the number of times of irrigating fresh water is 1-2 times per day;
s7, afforestation: and conveying the hardened seedlings to a high salinity environment for forestation.
Example 5
A Kandelia candel seedling growing method comprises the following steps:
s1, site selection and soil preparation
Selecting a nursery garden to be arranged on a low tide beach which is small in wind wave and can be periodically submerged by seawater in a estuary bay area; the nursery garden is provided with a seedling growing area, and the seedling growing area is subjected to soil preparation and disinfection treatment;
s2, selecting seeds
Collecting hypocotyls of local or peripheral Kandelia candel in nursery land in 12-3 months per year, and selecting mature, fresh, disease and pest free and undifferentiated hypocotyls for seedling culture;
s3, seedling raising matrix treatment
Mixing the Kandelia candel leaching liquor, red soil, cow dung, sandy soil with sand content of 80-90%, calcium nitrate and calcium superphosphate, adding seawater, fully and uniformly stirring, covering with a film for composting, and decomposing to obtain nutrient soil; loading nutrient soil into nutrient bags, transporting the nutrient soil to a seedling raising area, and placing the nutrient soil into ridges, wherein the direction of the ridges is consistent with the direction of the seawater rising and falling tide; wherein the proportion of seawater, Kandelia candel leaching liquor, red soil, cow dung, sandy soil, calcium nitrate and calcium superphosphate is 0.3L: 1L: 75 kg: 40 kg: 15 kg: 2 kg: 3 kg;
the preparation method of the Kandelia candel leaching liquor comprises the following steps: selecting the rest hypocotyls in the step S2, cleaning, adding water with the weight 10 times that of the hypocotyls, heating to 90 ℃, cooking for 0.5h, adding perlite, continuing cooking for 0.5h, cooling to 40 ℃, adding the bark of Kandelia candel branches, continuing cooking for 30min, and filtering to obtain Kandelia candel leaching liquor; wherein the weight ratio of the embryonic axis, the perlite to the barks of the Kandelia candel is 1: 0.4: 0.2;
s4, sowing
Sowing in a mode of adopting and sowing at any time; cleaning the collected hypocotyls with water, soaking in freshwater seawater with salinity of 12 per mill for 4.5h, soaking in 300 times of carbendazim solution for 5 min, and cleaning with water; during sowing, the nutrient soil is watered with water, then the hypocotyls are inserted, and the ratio of the hypocotyls to the nutrient soil is 1: 0.5-1 kg, pressing the basal part of the embryonic axis with hands to ensure that the embryonic axis is fully attached to the nutrient soil, wherein the transplanting depth of the embryonic axis is 2-4 cm, shading with a shading net with the transmittance of 70% after sowing, gradually opening the shading net to acclimatize the seedling after the seed grows into 2-3 true leaves, and slowly adapting to the growing environment exposed to sunlight to avoid the seedling from burning the leaves caused by direct sunlight.
S5, seedling management
And (3) water and fertilizer management: in the initial stage of sowing, fresh water is irrigated for 3-5 times every day, the soil salinity is controlled to be 5-10 per thousand, after 2-3 main leaves grow out of the seeds, fresh water is irrigated for 2-3 times every day, and the soil salinity is controlled to be 18-28 per thousand; spraying an amino acid foliar fertilizer for 1-2 times in a seedling stage, and applying a base fertilizer for 5-8 times in a fast growth stage;
and (3) pest control: timely pulling out the diseased plant, spraying 1000 times of 75% chlorothalonil solution every 5-7 days for 3-4 times; the insect pest control is to artificially catch marine animals, trap and kill adults by arranging a trap lamp, and regularly spray insecticide;
s6, seedling hardening after outplanting: when the seedling grows to 60 cm in height, outplanting, stopping fertilizing one month before outplanting, controlling the soil salinity to be 25-30 per thousand, performing allopatric root cutting and temporary planting and seedling hardening after outplanting, hardening the seedlings for 30 days, irrigating fresh water for 400L/mu/time before temporary planting and hardening the seedlings for 7 days, irrigating fresh water for 300L/mu/time after 7 days, and periodically soaking the seawater; the number of times of irrigating fresh water is 1-2 times per day;
s7, afforestation: and (4) conveying the seedling after seedling exercising to a low tide beach near the bank for afforestation.
Example 6
A Kandelia candel seedling growing method comprises the following steps:
s1, site selection and soil preparation
Selecting a nursery garden to be arranged on a low tide beach which is small in wind wave and can be periodically submerged by seawater in a estuary bay area; the nursery garden is provided with a seedling growing area, and the seedling growing area is subjected to soil preparation and disinfection treatment;
s2, selecting seeds
Collecting hypocotyls of local or peripheral Kandelia candel in nursery land in 12-3 months per year, and selecting mature, fresh, disease and pest free and undifferentiated hypocotyls for seedling culture;
s3, treating the seedling culture substrate
Mixing the Kandelia candel leaching liquor, red soil, cow dung, sandy soil with sand content of 80-90%, calcium nitrate and calcium superphosphate, adding seawater, fully and uniformly stirring, covering with a film for composting, and decomposing to obtain nutrient soil; loading nutrient soil into nutrient bags, transporting the nutrient soil to a seedling raising area, and placing the nutrient soil into ridges, wherein the direction of the ridges is consistent with the direction of the seawater rising and falling tide; wherein, the proportion of seawater, Kandelia candel leaching liquor, red soil, cow dung, sandy soil, calcium nitrate and calcium superphosphate is 0.3L: 1L: 75 kg: 40 kg: 15 kg: 2 kg: 3 kg;
the preparation method of the Kandelia candel leaching liquor comprises the following steps: selecting the residual hypocotyls in the step S2, cleaning, adding water with the weight 10 times that of the hypocotyls, heating to 90 ℃, cooking for 1.5h, and filtering to obtain Kandelia candel leaching liquor;
s4, sowing
Adopting a mode of adopting and sowing at any time; cleaning the collected hypocotyls with water, soaking in freshwater seawater with salinity of 9 per mill for 4.5h, soaking in 300 times of carbendazim solution for 5 min, and cleaning with water; during sowing, the nutrient soil is watered with water, and then the hypocotyls are inserted, wherein the ratio of the hypocotyls to the nutrient soil is 1: 0.5-1 kg, pressing the basal part of the embryonic axis with hands to ensure that the embryonic axis is fully attached to the nutrient soil, wherein the transplanting depth of the embryonic axis is 2-4 cm, shading with a shading net with the transmittance of 70% after sowing, gradually opening the shading net to acclimatize the seedling after 2-3 true leaves grow out of the seed, and slowly adapting to the growing environment exposed to sunlight to avoid the seedling from burning the leaves due to direct sunlight;
s5, seedling management
And (3) water and fertilizer management: in the initial stage of sowing, fresh water is irrigated for 3-5 times every day, the soil salinity is controlled to be 5-10 per thousand, after 2-3 true leaves grow out of the seeds, fresh water is irrigated for 2-3 times every day, and the soil salinity is controlled to be 18-28 per thousand; spraying amino acid foliar fertilizer for 1-2 times in a seedling stage, and applying base fertilizer for 5-8 times in a fast growth stage;
and (3) pest control: timely pulling out the diseased plant, spraying 1000 times of 75% chlorothalonil solution every 5-7 days for 3-4 times; the insect pest control method comprises the following steps of (1) artificially catching marine animals, arranging a trap lamp to trap and kill adults, and spraying an insecticide regularly;
s6, seedling hardening after outplanting: when the seedling grows to 60 cm in height, outplanting, stopping fertilizing one month before outplanting, controlling the soil salinity to be 25-30 per thousand, performing allopatric root cutting and temporary planting and seedling hardening after outplanting, hardening the seedlings for 30 days, irrigating fresh water for 400L/mu/time before temporary planting and hardening the seedlings for 7 days, irrigating fresh water for 300L/mu/time after 7 days, and periodically soaking the seawater; the number of times of irrigating fresh water is 1-2 times per day;
s7, afforestation: and (4) conveying the seedling after seedling exercising to a low tide beach near the bank for afforestation.
Comparative example 1
A Kandelia candel seedling growing method comprises the following steps:
s1, site selection and soil preparation
Selecting nursery lands on low tide beaches with small wind waves and periodic seawater flooding in estuary areas; the nursery garden is provided with a seedling growing area, and the seedling growing area is subjected to soil preparation and disinfection treatment;
s2, selecting seeds
Collecting hypocotyls of local or peripheral Kandelia candel in nursery garden 12 months to 3 months in the next year, and selecting mature, fresh, disease and pest free and undifferentiated hypocotyls for seedling culture;
s3, treating the seedling culture substrate
Mixing red soil, cow dung, sandy soil with sand content of 80-90%, calcium nitrate and calcium superphosphate, adding seawater, fully and uniformly stirring, covering with a film for composting, and decomposing to obtain nutrient soil; loading nutrient soil into nutrient bags, transporting the nutrient soil to a seedling raising area, and placing the nutrient soil into ridges, wherein the direction of the ridges is consistent with the direction of the seawater rising and falling tide; wherein, the proportion of seawater, laterite, cow dung, sandy soil, calcium nitrate and calcium superphosphate is 0.3L: 75 kg: 40 kg: 15 kg: 2 kg: 3 kg;
s4, sowing
Sowing in a mode of adopting and sowing at any time; cleaning the collected hypocotyls with water, soaking in freshwater seawater with salinity of 9 ‰for4.5 h, soaking in 300 times of carbendazim solution for 5 min, and cleaning with water; during sowing, the nutrient soil is watered with water, then the hypocotyls are inserted, and the ratio of the hypocotyls to the nutrient soil is 1: 0.5-1 kg, pressing the basal part of the embryonic axis with hands to ensure that the embryonic axis is fully attached to the nutrient soil, wherein the transplanting depth of the embryonic axis is 2-4 cm, shading with a shading net with the transmittance of 70% after sowing, gradually opening the shading net to acclimatize the seedling after the seed grows into 2-3 true leaves, and slowly adapting to the growing environment exposed to sunlight to avoid the seedling from burning the leaves caused by direct sunlight.
S5, seedling management
And (3) water and fertilizer management: in the initial stage of sowing, fresh water is irrigated for 3-5 times every day, the soil salinity is controlled to be 5-10 per thousand, after 2-3 main leaves grow out of the seeds, fresh water is irrigated for 2-3 times every day, and the soil salinity is controlled to be 18-28 per thousand; spraying amino acid foliar fertilizer for 1-2 times in a seedling stage, and applying base fertilizer for 5-8 times in a fast growth stage;
and (3) pest control: timely pulling out the diseased plant, spraying 1000 times of 75% chlorothalonil solution every 5-7 days for 3-4 times; the insect pest control method comprises the following steps of (1) artificially catching marine animals, arranging a trap lamp to trap and kill adults, and spraying an insecticide regularly;
s6, seedling hardening after outplanting: after the seedlings grow to 60 cm in height, outplanting, stopping fertilizing one month before outplanting, controlling the salinity of soil to be 25-30 per thousand, performing off-site root cutting and temporary planting and hardening after outplanting, hardening the seedlings for 30 days, irrigating fresh water for 400L/mu/time 7 days before temporary planting and hardening the seedlings, irrigating fresh water for 300L/mu/time 7 days later, and periodically submerging seawater; the number of times of irrigating fresh water is 1-2 times per day;
s7, afforestation: and (4) conveying the seedling after seedling exercising to a low tide beach near the bank for afforestation.
Comparative example 2
A Kandelia candel seedling raising method comprises the following steps:
s1, site selection and soil preparation
Selecting nursery lands on low tide beaches with small wind waves and periodic seawater flooding in estuary areas; the nursery garden is provided with a seedling growing area, and the seedling growing area is subjected to soil preparation and disinfection treatment;
s2, selecting seeds
Collecting hypocotyls of local or peripheral Kandelia candel in nursery garden 12 months to 3 months in the next year, and selecting mature, fresh, disease and pest free and undifferentiated hypocotyls for seedling culture;
s3, treating the seedling culture substrate
Mixing the Kandelia candel leaching liquor, red soil, cow dung, sandy soil with sand content of 80-90%, calcium nitrate and calcium superphosphate, adding seawater, fully and uniformly stirring, covering with a film for composting, and decomposing to obtain nutrient soil; loading nutrient soil into nutrient bags, transporting the nutrient soil to a seedling raising area, and placing the nutrient soil into ridges, wherein the direction of the ridges is consistent with the direction of the seawater rising and falling tide; wherein, the proportion of seawater, Kandelia candel leaching liquor, red soil, cow dung, sandy soil, calcium nitrate and calcium superphosphate is 0.3L: 1L: 75 kg: 40 kg: 15 kg: 2 kg: 3 kg;
the preparation method of the Kandelia candel leaching liquor comprises the following steps: selecting the rest hypocotyls in the step S2, cleaning, adding water with the weight 10 times that of the hypocotyls, heating to 90 ℃, cooking for 0.5h, adding perlite, continuing cooking for 0.5h, cooling to 40 ℃, adding the bark of Kandelia candel, continuing cooking for 30min, and filtering to obtain Kandelia candel leaching liquor; wherein the weight ratio of the embryonic axis, the perlite to the barks of the Kandelia candel is 1: 0.4: 0.2;
s4, sowing
Sowing in a mode of adopting and sowing at any time; cleaning the collected hypocotyls with water, soaking in water for 4.5h, soaking in 300 times of carbendazim solution for 5 min, and cleaning with water; during sowing, the nutrient soil is watered with water, then the hypocotyls are inserted, and the ratio of the hypocotyls to the nutrient soil is 1: 0.5-1 kg, press the embryonic axis basal portion with the hand, make the embryonic axis fully laminate with nutrient soil, the embryonic axis depth of inserting is 2-4 centimetres, hide the shade with the sunshade net that the transmittance is 70% after the seeding is finished, after 5 ~ 6 true leaves of seed growth, open the sunshade net gradually and refine the seedling, let the seedling slowly adapt to the growing environment that the sunshine is bare and sun-cured, avoid the seedling to receive the direct solar radiation and burn the blade.
S5, seedling management
And (3) water and fertilizer management: in the initial stage of sowing, fresh water is irrigated for 3-5 times every day, the soil salinity is controlled to be 5-10 per thousand, after 5-6 true leaves grow out of the seeds, fresh water is irrigated for 2-3 times every day, and the soil salinity is controlled to be 15-22 per thousand; spraying amino acid foliar fertilizer for 1-2 times in a seedling stage, and applying base fertilizer for 5-8 times in a fast growth stage;
and (3) pest control: timely pulling out the diseased plant, spraying 1000 times of 75% chlorothalonil solution every 5-7 days for 3-4 times; the insect pest control is to artificially catch marine animals, trap and kill adults by arranging a trap lamp, and regularly spray insecticide;
s6, seedling hardening after outplanting: when the seedling grows to 60 cm in height, outplanting, stopping fertilizing one month before outplanting, controlling the soil salinity to be 15-25 per thousand, performing allopatric root cutting and temporary planting and seedling hardening after outplanting, hardening the seedlings for 30 days, irrigating fresh water for 400L/mu/time before temporary planting and hardening the seedlings for 7 days, irrigating fresh water for 300L/mu/time after 7 days, and periodically soaking the seawater; the number of times of irrigating fresh water is 1-2 times per day;
s7, afforestation: and (4) conveying the seedling after seedling exercising to a low tide beach near the bank for afforestation.
Examples of the experiments
In each example and comparative example, 300 hypocotyls are respectively taken for seedling culture, the survival rate of seedlings in each group is observed and recorded, and the survival rate, lodging rate and tannin content of seedlings after afforestation are tracked and recorded, and the results are shown in table 1;
the survival rate (%) of the seedlings is the number of seedlings before outplanting/the number of sowing hypocotyls multiplied by 100%
Lodging rate (%) (lodging number of seedlings after afforestation for one year/afforestation number of seedlings multiplied by 100%
The survival rate (%) of afforestation is equal to the number of surviving seedlings/number of afforestation seedlings after two years, multiplied by 100%
The tannin content determination method comprises the following steps: randomly selecting 3 Kandelia candel seedlings, collecting leaves on branches with different heights, mixing and drying, grinding into powder, preparing a 10g/L sample solution with distilled water, taking 5mL of the sample solution, adding 20mL of distilled water, 1mL of ferric trichloride solution, 4mL of phenanthroline and 2mL of sodium acetate, finally complementing the volume to 50mL with distilled water, and measuring absorbance at 510 nm; and simultaneously, measuring by using a tannin standard solution according to the steps, drawing a standard curve by using the tannin content as an abscissa and the absorbance value as an ordinate, and calculating the tannin content according to the standard curve.
TABLE 1 Kandelia candel growth
| Group of | Survival rate of seedling (%) | Lodging Rate (%) | Survival rate of afforestation (%) | Tannin content (%) |
| Example 1 | 99.0 | 0.67 | 98.9 | 35.2 |
| Example 2 | 98.3 | 1.01 | 98.3 | 33.3 |
| Example 3 | 96.6 | 2.06 | 95.8 | 31.4 |
| Example 4 | 97.3 | 1.71 | 96.2 | 32.7 |
| Example 5 | 95.3 | 2.09 | 96.8 | 29.8 |
| Example 6 | 94.6 | 2.11 | 95.4 | 27.4 |
| Comparative example 1 | 88.6 | 5.63 | 89.4 | 21.9 |
| Comparative example 2 | 94.3 | 6.25 | 91.1 | 29.2 |
The experimental data show that the seedling survival rate and the tannin content can be improved, the lodging rate can be reduced, the afforestation survival rate can be improved, and the higher afforestation survival rate can be realized by the method for growing the Kandelia candel seedlings according to the embodiment 3-4, so that the Kandelia candel seedlings cultivated by the method have the good barrenness resistance and salt tolerance.
Wherein, the salinity of the fresh seawater used for soaking the embryonic axis in the example 5 is too high, and the survival rate of the seedlings is lower than that in the example 1; example 6 the preparation method of kandelia candel leaching liquor is different from the invention, the seedling survival rate, tannin content and afforestation survival rate are lower than those of example 1, and the lodging rate is higher; compared with the embodiment, the seedling survival rate, tannin content and afforestation survival rate are lower and the lodging rate is high because the Kandelia candel leaching liquor is not added when the nutrient soil is prepared; in the comparative example 2, the hypocotyls are not soaked in the fresh seawater after being collected, the culture conditions are different, the survival rate of the Kandelia candel seedlings is low, and the lodging rate is high.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. A method for raising seedlings of Kandelia candel is characterized by comprising the following steps:
s1, site selection and soil preparation
Selecting a nursery land on a low tidal flat; the nursery garden is provided with a seedling growing area, and the seedling growing area is subjected to soil preparation and disinfection treatment;
s2, selection of embryonic axis
Collecting hypocotyls from 12 months per year to 3 months per year, and selecting mature and undifferentiated hypocotyls of radicles for seedling culture;
s3, treating the seedling culture substrate
Mixing Kandelia candel leaching liquor, red soil, animal waste, sandy soil, calcium nitrate and calcium superphosphate, adding seawater, stirring uniformly, composting, and decomposing to obtain nutrient soil; loading nutrient soil into nutrient bags, transporting the nutrient soil to a seedling raising area, and placing the nutrient soil into ridges, wherein the direction of the ridges is consistent with the direction of the seawater rising and falling tide;
the preparation method of the Kandelia candel leaching liquor comprises the following steps: selecting the rest hypocotyls in the step S2, cleaning, adding water with the weight being 10-12 times that of the hypocotyls, heating to 80-100 ℃, cooking for 0.5-1 h, adding perlite, continuing to cook for 0.5-1 h, cooling to 40-50 ℃, adding the bark of the Kandelia candel branches, continuing to cook for 20-30 min, and filtering to obtain a Kandelia candel leaching solution; wherein the weight ratio of the embryonic axis, the perlite to the barks of the Kandelia candel is 1: (0.3-0.4): (0.1-0.3);
s4, sowing
Cleaning the collected hypocotyls with water, soaking the hypocotyls in fresh seawater for 4-5 hours, disinfecting, and cleaning with water; watering the nutrient soil with water during sowing, inserting the nutrient soil into the embryonic axis with the inserting depth of 2-4 cm, shading with a shading net after sowing, and opening the shading net after 2-3 true leaves grow out from the embryonic axis;
the salinity of the fresh seawater is 8-10 per mill;
s5, seedling management
And (3) water and fertilizer management: in the initial stage of sowing, fresh water is irrigated every day, the salinity of the soil is controlled to be 5-10 per thousand, and after 2-3 true leaves grow on an embryonic axis, the salinity of the soil is controlled to be 18-28 per thousand; spraying amino acid foliar fertilizer in the seedling stage, and applying base fertilizer in the fast growing stage;
and (3) pest control: spraying chlorothalonil; the insect pest control is to artificially catch marine animals, a trap lamp is arranged, and insecticide is sprayed regularly;
s6, seedling hardening after outplanting
When the growth height of the seedlings is 50-80 cm, outplanting, stopping fertilizing one month before outplanting, controlling the salinity of the soil to be 25-30 per thousand, and performing root cutting and heeling seedling hardening after outplanting;
s7. afforestation
And (4) conveying the seedling after seedling hardening to a forestation place to start forestation.
2. The method for growing seedlings of Kandelia candel as claimed in claim 1, wherein in step S3, the ratio of seawater, Kandelia candel leaching solution, red soil, animal waste, sandy soil, calcium nitrate and calcium superphosphate is (0.2-0.3) L: 1L: (60-80) kg: (20-40) kg: (10-15) kg: (1.2-2.5) kg: (1.5-3) kg.
3. The method for growing seedlings of Kandelia candel as claimed in claim 2, wherein the sandy soil is sandy soil with sand content of 80-90%.
4. The Kandelia candel seedling growing method according to claim 1, wherein the disinfection is to soak hypocotyls in a carbendazim or chlorothalonil solution for 5-6 min.
5. The Kandelia candel seedling raising method according to claim 1, wherein in step S4, the ratio of hypocotyl to nutrient soil is 1: 0.5-1 kg.
6. The method for growing seedlings of Kandelia candel as claimed in claim 1, wherein the spraying of chlorothalonil is spraying 75% of 800-1000 times of chlorothalonil every 5-7 days for 3-4 times.
7. The Kandelia candel seedling raising method according to claim 1, wherein in step S6, fresh water is poured for 400-600L/mu/time 7 days before rooting and hardening, and fresh water is poured for 300-500L/mu/time 7 days later, so that seawater is periodically submerged; the number of times of irrigating fresh water is 1-2 times per day.
8. The Kandelia candel seedling raising method according to claim 1, wherein the seedling hardening time is 30-35 days.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110595959.4A CN113179880B (en) | 2021-05-29 | 2021-05-29 | Kandelia candel seedling growing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110595959.4A CN113179880B (en) | 2021-05-29 | 2021-05-29 | Kandelia candel seedling growing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113179880A CN113179880A (en) | 2021-07-30 |
| CN113179880B true CN113179880B (en) | 2022-07-26 |
Family
ID=76986402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110595959.4A Active CN113179880B (en) | 2021-05-29 | 2021-05-29 | Kandelia candel seedling growing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113179880B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113841558A (en) * | 2021-08-23 | 2021-12-28 | 海南三友海洋科技有限公司 | Seedling growing method for positive mangrove |
| CN114128550B (en) * | 2021-10-27 | 2023-01-31 | 珠海市鑫亚园林绿化工程有限公司 | Method for rapidly cultivating salt-tolerant tung tree |
| CN114271151B (en) * | 2021-12-28 | 2023-01-13 | 青岛绿色硅谷科技有限公司 | Domestication method for improving cold resistance of autumn eggplant seedling pot culture by utilizing greenhouse |
| CN115088516B (en) * | 2022-06-20 | 2024-04-12 | 海南省智慧环境投资控股有限公司 | Mangrove seedling cultivation system and method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103283475A (en) * | 2013-06-28 | 2013-09-11 | 陆英杰 | Seedling culture method for mangroves |
| CN109429860A (en) * | 2018-11-20 | 2019-03-08 | 张宏亮 | The method for culturing seedlings of plant autumn solanberry reality in mangrove |
-
2021
- 2021-05-29 CN CN202110595959.4A patent/CN113179880B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN113179880A (en) | 2021-07-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113179880B (en) | Kandelia candel seedling growing method | |
| CN103798030B (en) | Anji white tea ecological and efficient cultivation method | |
| Prasad et al. | Smart practices and technologies for climate resilient agriculture | |
| CN105104044A (en) | Planting method for organic rice in mountainous area | |
| CN101176407A (en) | Artificial cultivation technique for black fruit medlar in alkaline land | |
| CN105123248B (en) | Red Soil Sloping Land builds the method that compound grass band retains soil nutrient | |
| CN104904541A (en) | Star anise tree planting method promoting high yield | |
| CN113197012B (en) | Method for raising seedlings of radix tinosporae with high germination rate and survival rate | |
| CN1857069A (en) | Comprehensive developing and utilizing method for fish, reed and rice in soda saline-alkali wetland | |
| Kumar et al. | Techno-economic feasibility of conservation agriculture in rainfed regions of India | |
| CN103125328A (en) | Ecological planting and breeding technology of frogs and rice | |
| CN103460954A (en) | Early-stage culture method for white gourd | |
| KR101075877B1 (en) | Method of natural farming | |
| CN109174959A (en) | A kind of ecological restoring method of As polluted soil | |
| CN105075785A (en) | Two-stage cultivation method for oil camellia container seedlings | |
| CN105123253B (en) | A kind of method for culturing seedlings of paris polyphylla | |
| CN105210827B (en) | Phase in early spring Yew cuttage method for culturing seedlings | |
| CN106717829A (en) | The implantation methods of Panax Japonicus Var. Major | |
| CN113207535B (en) | Method for growing seedlings of bruguiera gymnorrhiza | |
| CN110583537A (en) | Terrace structure for comprehensive planting and breeding of rice, fish and vegetables and planting and breeding method | |
| CN104206140A (en) | Method for cultivating goodyera yamiana II | |
| CN109156280A (en) | A kind of efficient breeding method of pluralistic agricultural | |
| CN107409706A (en) | A kind of method for improving cassava seedling transplanting survival rate | |
| CN109156249A (en) | A kind of one ground of agricultural high-effiency is mostly used breeding method | |
| CN109618863A (en) | It is a kind of improve traditional sinocalamus latiflorus woods bamboo shoot output stay bamboo forest culture and management method |
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 | ||
| CB03 | Change of inventor or designer information |
Inventor after: Huang Wenming Inventor after: Cai Renfei Inventor after: Zhong Tingting Inventor before: Cai Renfei Inventor before: Huang Wenming Inventor before: Wen Bin |
|
| CB03 | Change of inventor or designer information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |