CN111802197A - Method for cultivating sweet potato seedling seeds based on seedling growing cylinder - Google Patents
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
- A01G22/25—Root crops, e.g. potatoes, yams, beet or wasabi
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C1/00—Apparatus, or methods of use thereof, for testing or treating seed, roots, or the like, prior to sowing or planting
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/02—Receptacles, e.g. flower-pots or boxes; Glasses for cultivating flowers
- A01G9/029—Receptacles for seedlings
- A01G9/0293—Seed or shoot receptacles
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/02—Receptacles, e.g. flower-pots or boxes; Glasses for cultivating flowers
- A01G9/029—Receptacles for seedlings
- A01G9/0295—Units comprising two or more connected receptacles
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Abstract
The invention relates to a method for cultivating sweet potato seed seedlings based on a seedling raising cylinder, belonging to the technical field of sweet potato seedling raising, and the method comprises the following steps: (1) screening seeds; (2) selecting a seedling raising shed; (3) seedbed finishing and soil preparation; (4) preparing and filling a seedling paper tube; (5) pre-treating seeds; (6) sowing: according to the principle of one hole per grain, sowing the germinated seeds into the center of each hole of the paper tube, slightly pressing and compacting by fingers, covering fine soil on the seeds, covering sandy soil on the seeds, ensuring that sand is over the edge of the paper tube, and scraping the fine sand by using a wood board to enable the fine sand to be flush with the top of the paper tube; (7) preparing an arch-coated film; (8) film forming; (9) seedling management is used for solving the technical problems of uneven seeding spacing and low seedling rate of sweet potato seedling seeds in the sweet potato seedling raising technology in the prior art.
Description
Technical Field
The invention relates to a method for cultivating sweet potato seedling seeds based on a seedling cultivation cylinder, and belongs to the technical field of sweet potato seedling cultivation.
Background
The sweet potato is also named as sweet potato, sweet potato and the like, belongs to dicotyledonous herbaceous wedding plants, belongs to sweet potato of Convolvulaceae, and is important grain, feed, industrial raw material and novel energy crop in the world. China is the biggest sweet potato planting country in the world, and the history of sweet potato planting has been over 400 years. According to statistics, the sweet potato planting area and the fresh potato yield in China all year round account for 40.9% and 67.72% of the world respectively. The crossbreeding is the main way of breeding high-yield and high-quality sweet potato variety, and the seeds obtained by the hybridization fructification are the initial real seeds of the sweet potato, have typical anatomical structure and characteristic characteristics of the seeds and are called as the seedling seeds. The seed coat of sweet potato seedling seed is thick and hard to adhere to the wax coat, have stronger protection and postpone the effect of absorbing water, the seed is difficult for sprouting under the normal condition, and the seedling emergence after the seeding is early and late the difference great and the uneven distribution of emerging, cause later stage management can not the uniformity, waste time and energy. Therefore, how to ensure the fast germination of the sweet potato seedling seeds and the uniform emergence and distribution of the seedlings is an important basis for realizing the high-efficiency breeding method of the sweet potatoes.
At present, the germination accelerating of sweet potato seedling seeds needs to be carried out by means of mechanical means after the peels are broken, but the germination accelerating method wastes a large amount of labor force, restricts the improvement of the working efficiency and is not suitable for sowing and accelerating the germination of a large amount of seedling seeds; in addition, the traditional sowing of the seedling seeds is mainly divided into flat land sowing or sowing after furrowing by using a stick and the like, wherein the sowing density and the sowing distance are random and have no consistency when the seeds are sowed on the flat land, the furrowing depth of the furrowing sowing is greatly influenced by human factors and can only be executed by operation experience, the consistency of the furrow depth and the management consistency are difficult to realize, and the emergence uniformity and the emergence rate are seriously influenced.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a method for cultivating sweet potato seedling seeds based on a seedling cultivation cylinder, which is used for solving the technical problems of uneven sowing distance and low seedling rate of sweet potato seedling seeds in the sweet potato seedling cultivation technology in the prior art.
The technical scheme for solving the technical problems is as follows: a method for cultivating sweet potato seed seedlings based on a seedling raising cylinder comprises the following steps: (1) screening seeds by adopting a buoyancy removal method;
(2) selecting a seedling raising shed: setting the lower limit value of the temperature in the shed to be not lower than 15 ℃, and arranging a ventilation opening or a ventilator in the shed;
(3) seedbed arrangement and soil preparation: selecting flat sunny and ventilated open ground for soil rotation, taking sandy loam as the whole seedbed, removing surface soil with the thickness of 8-10cm from the seedbed, sieving by a stainless steel sieve with the aperture of 8mm to remove large-particle soil stones for standby, sieving by a sieve with the aperture of 10-14 meshes for standby, and sieving by a sand sieve with the aperture of 10-14 meshes for standby;
(4) preparing and filling a seedling paper tube: the paper tube is laid in a seedling bed, the depth of the seedling bed is higher than that of the seedling paper tube, the paper tube soil is filled with screened soil to have a thickness of 4-5cm, two compound fertilizers are placed, and a layer of fine soil is laid to cover the fertilizer particles, so that the preparation and filling operation of the seedling paper tube is completed;
(5) pretreatment of seeds: firstly, soaking seedling seeds in 98% concentrated sulfuric acid for 20-50 minutes, transferring the seeds into a culture dish after washing, adding distilled water to immerse the seeds, covering the surface layers of the seeds with sterilized filter paper, covering a culture dish cover, transferring into an illumination incubator, and culturing for 20 hours at 25 ℃ to obtain germinated seeds;
(6) sowing: according to the principle of one hole per grain, sowing the germinated seeds into the center of each hole of the paper tube, slightly pressing and compacting by fingers, covering fine soil on the seeds, covering sandy soil on the seeds, ensuring that sand is over the edge of the paper tube, and scraping the fine sand by using a wood board to enable the fine sand to be flush with the top of the paper tube;
(7) preparing an arch-covering film: erecting arches at two sides of the seedbed by using elastic sheet bars, wherein the distance between the highest point of the arch and the upper surface of the paper tube is not less than 0.5m, the distance between the two arches is 1m, and then covering transparent mulching films or plastics above the arches;
(8) film forming: controlling the temperature in the shed to be 30 +/-4 ℃ after sowing, removing mulching films or plastics 3-4 days after sowing, and spraying water in the morning;
(9) seedling stage management: watering when the fine soil is dry, no watering is carried out 7 days before seedling shearing in the later period, and the ventilation opening is gradually increased every 3 days.
On the basis of the technical scheme, the invention can be further improved as follows.
Further, the specific operation steps of the buoyancy removing method in the step (1) are as follows: the sweet potato seedling seeds are placed into a wide-mouth open container filled with purified water, the water volume is higher than the spreading height of the seeds by more than 10cm, impurities mixed in the seeds, the seeds which are shrivelled and cannot be grown and have small specific gravity are removed by buoyancy, and the seeds with good maturity and high purity are reserved.
Further, in the step (6), before sowing the seeds, the 800-time carbendazim solution with the effective component content of 50 percent is sprayed on the fine soil and then the seeds are sowed.
And furthermore, in the step (4), the distance between two adjacent paper cylinders is 2-5cm, and the two paper cylinders are separated by bricks or wood boards.
Further, in the step (4), the specification of the paper tube is 5cmx6cm (namely the caliber x height) and 240 holes/volume.
Further, adding watering before sowing between the steps (4) and (5): irrigating the seedbed for 2-3 times before sowing, wherein the mode of irrigating the seedbed adopts inter-ditch irrigation, namely irrigating water into the gap between two adjacent paper cylinders, and the irrigation height is consistent with the height of the soil filled in the paper cylinders.
Further, in the step (5), when the seeds soaked in the concentrated sulfuric acid are washed, the seeds are washed for at least 3 times by using clean water, wherein the last time is washed by using distilled water.
Further, in the step (6), the fine soil is covered by the seeds for 2-5mm, and the covering thickness of the sandy soil is 1-2 cm.
Further, a paper tube is added between the step (6) and the step (7) for spraying water: and (3) irrigating the seedbed for 1 time after sowing, wherein irrigation among ditches is adopted in the seedbed irrigation mode, namely irrigation is carried out in gaps between two adjacent paper cylinders, the irrigation height is consistent with the height of the filled soil in the paper cylinders, and meanwhile, the seedbed is watered thoroughly by spraying water or a watering can.
The invention has the beneficial effects that: by adopting the paper tube seedling raising technology, the seeding intervals are more uniform, each seedling in the seedling raising stage is ensured to be in an independent nutrition system, the root grows and develops in each tube and does not spread outwards, the nutrition in the seedling raising stage is ensured to be not deficient, the seedlings are not affected with each other, the seedling rate of the sweet potato seedling is improved, the seedling is ensured to grow healthily and uniformly, and the survival rate of seedling transplantation is indirectly improved; the seedbed arrangement and the soil preparation are carried out by using local materials, so that the management is convenient, the operation is simple and feasible, the purposes of labor and time saving, economy and convenience are achieved, the time for accelerating germination and seedling raising of the seeds is shortened, and the complicated procedures for seed seedling raising management are simplified; the seed screening and the setting of the conditions of the seedling shed are carried out, so that the seedling rate of the seedlings is improved; the distance is set between two adjacent paper rolls, so that the paper rolls are convenient to distinguish and water; the foundation soil in the paper tube is wetted by adopting a ditch irrigation mode, so that soil hardening caused by damage to the foundation soil structure in the paper tube due to high-altitude watering is avoided; compared with the traditional manual seed coat cutting method, the seed coat cutting method has the advantages that the concentrated sulfuric acid is adopted for soaking the seeds and washing the seeds, so that the labor and the time are greatly saved, the time and the labor are saved, and the working efficiency is improved; by adopting the principle of one hole and one grain during sowing, simultaneously adopting sandy loam as a substrate below the seeds and fine soil and sandy soil as covering soil above the seeds, the emergence rate and the growth character of the seedlings in the later period are greatly improved; the spray of the water in the morning during the film drawing operation is beneficial to auxiliary shelling and water replenishing; when the seedlings are managed in the seedling stage, watering is not carried out for 7 days before the seedlings are cut, and the ventilation openings are gradually increased every 3 days before the seedlings are cut, so that the environment adaptation capability of the seedlings is improved.
Drawings
Fig. 1 is a structural schematic diagram of a seedling paper tube.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
A method for cultivating sweet potato seed seedlings based on a seedling raising cylinder comprises the following steps: (1) screening seeds by adopting a buoyancy removal method, wherein the buoyancy removal method comprises the following specific operation steps: putting sweet potato seeds into a wide-mouth open container filled with purified water, wherein the water volume is higher than the spreading height of the seeds by more than 10cm, removing impurities mixed in the seeds, shrunken seeds and seeds with smaller specific gravity by utilizing buoyancy, and keeping the seeds with good maturity and high purity; (2) selecting a seedling raising shed: setting the lower limit value of the temperature in the greenhouse to be not lower than 15 ℃, selecting a greenhouse in a cold ground or an intelligent greenhouse, and arranging a ventilation opening or a ventilator in the greenhouse; the seed screening and the setting of the conditions of the seedling shed are carried out, so that the seedling rate of the seedlings is improved; (3) seedbed arrangement and soil preparation: selecting a flat sunny and ventilated open ground for soil rotation, adopting sandy loam as the whole seedbed, moving surface soil with the thickness of 8-10cm out of the seedbed, sieving the surface soil with a stainless steel sieve with the aperture of 8mm to remove large-particle soil stones for standby use as sieved soil, sieving the sieved soil with a sieve of 10-14 meshes for standby use as fine soil, taking sandy soil for standby use, spraying 800 times of carbendazim solution with the effective component content of 50% on the fine soil before sowing seeds, and then sowing the seeds; (4) preparing and filling a seedling paper tube: the specification of the paper cylinders selects 5cmx6cm (namely the height of the caliber x), 240 holes/volume, the paper cylinders are flatly laid in a seedbed, the depth of the seedbed is higher than that of the seedling paper cylinders, the distance between two adjacent paper cylinders is 2-5cm, the paper cylinders are separated by bricks or boards, the distance between two adjacent paper cylinders is set, the paper cylinders are convenient to distinguish and water, the paper cylinders are filled with screened soil, the thickness of the soil of the paper cylinders is 4-5cm, then a layer of fine soil is laid to cover fertilizer granules after two compound fertilizers are put in, and the preparation and filling operation of the seedling paper cylinders is completed; (5) watering before sowing: irrigating the seedbed for 2-3 times before sowing, wherein inter-ditch irrigation is adopted in the seedbed irrigation mode, namely, irrigation is carried out in a gap between two adjacent paper cylinders, the irrigation height is consistent with the height of soil filled in the paper cylinders, and the foundation soil in the paper cylinders is wetted by adopting the inter-ditch irrigation mode, so that soil hardening caused by damage to the foundation soil structure in the paper cylinders due to high-altitude irrigation is avoided; (6) pretreatment of seeds: firstly, soaking the seedling seeds in 98% concentrated sulfuric acid for 20-50 minutes, transferring the seeds into a culture dish after washing, washing the seeds for at least 3 times by using clear water during washing, washing the seeds for the last time by using distilled water, adding the distilled water to immerse the seeds, covering the surface layers of the seeds by using sterilization filter paper, covering a culture dish cover, transferring into a light culture box, culturing for 20 hours at 25 ℃ to obtain germinated seeds, soaking the seeds by using the concentrated sulfuric acid, and washing, compared with the traditional manual seed cutting, the method greatly saves labor and time, saves time and labor, and improves the working efficiency; (7) sowing: according to the principle of one hole per grain, the germinated seeds are sown into the center of each hole of a paper cylinder and are lightly pressed and compacted by fingers, fine soil is covered on the seeds, the thickness of the fine soil is 2-5mm, then sandy soil is covered, the covering thickness of the sandy soil is 1-2cm, the situation that sand does not cover the edge of the paper cylinder is ensured, fine sand is scraped by a wood plate to be flush with the top of the paper cylinder, the principle of one hole per grain is adopted during sowing, sandy soil is adopted as a substrate below the seeds, fine soil and sandy soil are adopted as the substrate above the seeds, and the emergence rate and the growth character of the later period of seedlings are greatly improved; (8) water spraying of the paper cylinder: irrigating the seedbed for 1 time after sowing, wherein the mode of irrigating the seedbed adopts inter-ditch irrigation, namely irrigating water into the gap between two adjacent paper cylinders, the irrigation height is consistent with the height of the filled soil in the paper cylinders, and simultaneously, the seedbed is watered thoroughly by spraying water or a watering can; (9) preparing an arch-covering film: erecting arches at two sides of the seedbed by using elastic sheet bars, wherein the distance between the highest point of the arch and the upper surface of the paper tube is not less than 0.5m, the distance between the two arches is 1m, and then covering transparent mulching films or plastics above the arches; (10) film forming: controlling the temperature in the shed to be 30 +/-4 ℃ after sowing, removing the mulching film or plastic 3-4 days after sowing, spraying the aqueous solution in the morning (relatively low temperature, about 8 hours), and spraying the aqueous solution in the morning during film start operation, so as to be beneficial to auxiliary shelling and water supplement; (11) seedling stage management: watering when the fine soil is dry, not watering 7 days before seedling shearing in the later period, gradually increasing the ventilation openings every 3 days, and increasing the environment adapting capability of the seedlings by not watering 7 days before seedling shearing and gradually increasing the ventilation openings every 3 days before seedling management in the seedling period. By adopting the paper tube seedling raising technology, the seeding intervals are more uniform, each seedling in the seedling raising stage is ensured to be in an independent nutrition system, the root grows and develops in each tube and does not spread outwards, the nutrition in the seedling raising stage is ensured to be not deficient, the seedlings are not affected with each other, the seedling rate of the sweet potato seedling is improved, the seedling is ensured to grow healthily and uniformly, and the survival rate of seedling transplantation is indirectly improved; the seedbed arrangement and the soil preparation are carried out by using local materials, the management is convenient, the operation is simple and feasible, the purposes of labor and time saving, economy and convenience are achieved, the time for accelerating germination and seedling raising of seeds is shortened, and the complicated procedures for seed seedling raising management are simplified
Experimental example 1: dividing sweet potato seedling seeds into six groups, and adopting the method to cultivate seedlings, wherein the difference between the first five groups is that concentrated sulfuric acid is used for soaking seeds for different time, the sixth group adopts artificial shearing to break seed coats, and the average germination rate is counted in table 1;
example 2: dividing the sweet potato seedling seeds into six groups, two groups of 200 seeds, two groups of 400 seeds and two groups of 600 seeds, and adopting the method to cultivate seedlings, wherein the difference is as follows: one group of 200 grains, one group of 400 grains and one group of 600 grains are soaked by 98% concentrated sulfuric acid, the remaining group of 200 grains, one group of 400 grains and one group of 600 grains are processed by manually cutting seed coats, the seed coat breaking time under the two modes is counted, and specific data are shown in the following table 2;
example 3: taking out well germinated seedling seeds according to the method, respectively sowing the seeds in a common seedbed and a paper cylinder by taking 240 seeds as a sowing amount and adopting a mode of half-meter high shed and mulching film coverage under the same other conditions, observing the emergence rates of the two seedling modes, respectively recording the emergence rates of 2 days, 3 days, 4 days, 5 days and 8 days after sowing, and carrying out statistics, wherein the specific data are shown in a table 3;
example 4: after 600 seedlings are prepared for germination treatment, uniformly adopting bed soil as a substrate below the seeds during sowing, respectively adopting 2cm fine soil, 2cm sandy soil and 0.5cm fine soil first and then 1.5cm sandy soil as covering soil above the seeds, adopting the methods for other seedling raising methods, observing and recording the emergence rate of 3 days and 4 days after sowing, measuring and counting the heel length, the root number, the vine length and the vine thickness 35 days after sowing, and obtaining specific data shown in a table 4;
table 1 shows the effect of different seed coat treatment methods on the germination rate of sweet potato seedling seeds:
| soak time treatment | Average germination percentage (%) |
| Soaking seeds in concentrated sulfuric acid for 10min | 82.5 |
| Soaking seeds in concentrated sulfuric acid for 20min | 95.1 |
| Soaking seeds in concentrated sulfuric acid for 30min | 94.8 |
| Soaking seeds in concentrated sulfuric acid for 40min | 95.6 |
| Soaking seeds in concentrated sulfuric acid for 50min | 91 |
| Artificially shearing seed coat | 88 |
Table 2 is a comparison of the efficiency of different seed coat treatments:
TABLE 3 influence of different seedling raising methods on the rate of emergence of sweet potato seedling seeds
TABLE 4 influence of different earthing methods on growth traits of sweet potato seedlings
In summary, table 1 shows that soaking seeds with 98% concentrated sulfuric acid for 20-50min is the best way for pretreatment of sweet potato seeds; as can be seen from table 2, with the increase of the number of the seedling seeds, the efficiency of the treatment method of manually cutting the seed coats is lower than that of the treatment method of soaking the seed coats with 98% concentrated sulfuric acid, that is, the seed coat breaking efficiency of the treatment method of soaking the seed coats with 98% concentrated sulfuric acid is higher; as can be seen from Table 3, the emergence rate of the seedling seeds is highest 3-4 days after the paper tube seedling culture, the emergence rate is basically stable about 3 days after the seeding, and compared with the common seedbed seedling culture, the time of the paper tube seedling culture for the full-length seedling culture is 1-2 days earlier than the common seedling culture; as can be seen from table 4, the best way to cover the substrate under the seeds and the soil over the seeds is a combination of bed soil with fine and sandy soil.
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 (9)
1. A method for cultivating sweet potato seedling seeds based on a seedling cultivation cylinder is characterized by comprising the following steps: the method comprises the following steps: (1) screening seeds by adopting a buoyancy removal method; (2) selecting a seedling raising shed: setting the lower limit value of the temperature in the shed to be not lower than 15 ℃, and arranging a ventilation opening or a ventilator in the shed; (3) seedbed arrangement and soil preparation: selecting flat sunny and ventilated open land for soil rotation, taking sandy loam as the whole seedbed, removing surface soil with the thickness of 8-10cm from the seedbed, sieving to remove large-particle soil stones for standby, taking sieved soil, sieving with a sieve of 10-14 meshes for standby, taking fine soil for standby, and taking sandy soil for standby; (4) preparing and filling a seedling paper tube: the paper tube is laid in a seedling bed, the depth of the seedling bed is higher than that of the seedling paper tube, the paper tube soil is filled with screened soil to have a thickness of 4-5cm, two compound fertilizers are placed, and a layer of fine soil is laid to cover the fertilizer particles, so that the preparation and filling operation of the seedling paper tube is completed; (5) pretreatment of seeds: firstly, soaking seedling seeds in 98% concentrated sulfuric acid for 20-50 minutes, transferring the seeds into a culture dish after washing, adding distilled water to immerse the seeds, covering the surface layers of the seeds with sterilized filter paper, covering a culture dish cover, transferring into an illumination incubator, and culturing for 20 hours at 25 ℃ to obtain germinated seeds; (6) sowing: according to the principle of one hole per grain, sowing the germinated seeds into the center of each hole of the paper tube, slightly pressing and compacting by fingers, covering fine soil on the seeds, covering sandy soil on the seeds, ensuring that sand is over the edge of the paper tube, and scraping the fine sand by using a wood board to enable the fine sand to be flush with the top of the paper tube; (7) preparing an arch-covering film: erecting arches at two sides of the seedbed by using elastic sheet bars, wherein the distance between the highest point of the arch and the upper surface of the paper tube is not less than 0.5m, the distance between the two arches is 1m, and then covering transparent mulching films or plastics above the arches; (8) film forming: controlling the temperature in the shed to be 30 +/-4 ℃ after sowing, removing mulching films or plastics 3-4 days after sowing, and spraying water in the morning; (9) seedling stage management: watering when the fine soil is dry, no watering is carried out 7 days before seedling shearing in the later period, and the ventilation opening is gradually increased every 3 days.
2. The method for cultivating the sweet potato seedling on the basis of the seedling raising cylinder as claimed in claim 1, wherein the method comprises the following steps: the specific operation steps of the buoyancy removing method in the step (1) are as follows: the sweet potato seedling seeds are placed into a wide-mouth open container filled with purified water, the water volume is higher than the spreading height of the seeds by more than 10cm, impurities mixed in the seeds, the seeds which are shrivelled and cannot be grown and have small specific gravity are removed by buoyancy, and the seeds with good maturity and high purity are reserved.
3. The method for cultivating the sweet potato seedling on the basis of the seedling raising cylinder as claimed in claim 1, wherein the method comprises the following steps: in the step (6), the seedlings are sowed after the 800-time carbendazim solution with the effective component content of 50 percent is sprayed on the fine soil before the seedlings are sowed.
4. The method for cultivating the sweet potato seedling on the basis of the seedling raising cylinder as claimed in claim 1, wherein the method comprises the following steps: in the step (4), the distance between two adjacent paper tubes is 2-5cm, and the paper tubes are separated by bricks or wood boards.
5. The method for cultivating the sweet potato seedling on the basis of the seedling raising cylinder as claimed in claim 4, wherein the method comprises the following steps: in the step (4), the specification of the paper tube is 5cmx6cm (namely the caliber x height) and 240 holes/volume.
6. The method for cultivating the sweet potato seedling on the basis of the seedling raising cylinder as claimed in claim 5, wherein the method comprises the following steps: adding water before sowing between the steps (4) and (5): irrigating the seedbed for 2-3 times before sowing, wherein the mode of irrigating the seedbed adopts inter-ditch irrigation, namely irrigating water into the gap between two adjacent paper cylinders, and the irrigation height is consistent with the height of the soil filled in the paper cylinders.
7. The method for cultivating the sweet potato seedling on the basis of the seedling raising cylinder as claimed in claim 6, wherein the method comprises the following steps: and (5) washing the seeds soaked in the concentrated sulfuric acid for at least 3 times by using clean water when washing the seeds, wherein the last time is washed by using distilled water.
8. The method for cultivating the sweet potato seedling on the basis of the seedling raising cylinder as claimed in claim 3, wherein the method comprises the following steps: in the step (6), the fine soil is covered by the seeds for 2-5mm, and the covering thickness of the sandy soil is 1-2 cm.
9. The method for cultivating the sweet potato seedling on the basis of the seedling raising cylinder as claimed in claim 8, wherein the method comprises the following steps: and (5) adding a paper tube for spraying water between the step (6) and the step (7): and (3) irrigating the seedbed for 1 time after sowing, wherein irrigation among ditches is adopted in the seedbed irrigation mode, namely irrigation is carried out in gaps between two adjacent paper cylinders, the irrigation height is consistent with the height of the filled soil in the paper cylinders, and meanwhile, the seedbed is watered thoroughly by spraying water or a watering can.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112913613A (en) * | 2021-02-05 | 2021-06-08 | 广西壮族自治区农业科学院 | Rapid breeding method for sweet potato seedling seeds |
| CN114128570A (en) * | 2021-12-15 | 2022-03-04 | 田胜利 | Strawberry seedling independent conjoined paper bowl breeding method |
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