CN110140609B - Cultivation method for two harvests of roselle in one year - Google Patents
Cultivation method for two harvests of roselle in one year Download PDFInfo
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- 235000001018 Hibiscus sabdariffa Nutrition 0.000 title claims abstract description 65
- 238000003306 harvesting Methods 0.000 title claims abstract description 46
- 238000012364 cultivation method Methods 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 43
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- 230000012010 growth Effects 0.000 claims description 14
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- 241001361634 Rhizoctonia Species 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims description 8
- 230000009105 vegetative growth Effects 0.000 claims description 7
- 239000003895 organic fertilizer Substances 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 5
- 241000918585 Pythium aphanidermatum Species 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 239000004563 wettable powder Substances 0.000 claims description 4
- TWFZGCMQGLPBSX-UHFFFAOYSA-N Carbendazim Natural products C1=CC=C2NC(NC(=O)OC)=NC2=C1 TWFZGCMQGLPBSX-UHFFFAOYSA-N 0.000 claims description 3
- JNPZQRQPIHJYNM-UHFFFAOYSA-N carbendazim Chemical compound C1=C[CH]C2=NC(NC(=O)OC)=NC2=C1 JNPZQRQPIHJYNM-UHFFFAOYSA-N 0.000 claims description 3
- 239000006013 carbendazim Substances 0.000 claims description 3
- 230000017260 vegetative to reproductive phase transition of meristem Effects 0.000 claims description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 2
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- 230000001954 sterilising effect Effects 0.000 claims description 2
- 230000001737 promoting effect Effects 0.000 claims 1
- 235000013399 edible fruits Nutrition 0.000 abstract description 18
- 230000008901 benefit Effects 0.000 abstract description 3
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- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000000249 desinfective effect Effects 0.000 description 2
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- 235000005206 Hibiscus Nutrition 0.000 description 1
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- ZMJBYMUCKBYSCP-UHFFFAOYSA-N Hydroxycitric acid Chemical compound OC(=O)C(O)C(O)(C(O)=O)CC(O)=O ZMJBYMUCKBYSCP-UHFFFAOYSA-N 0.000 description 1
- 241000219071 Malvaceae Species 0.000 description 1
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- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 241000220317 Rosa Species 0.000 description 1
- 240000002072 Solanum torvum Species 0.000 description 1
- 235000013358 Solanum torvum Nutrition 0.000 description 1
- 229930003268 Vitamin C Natural products 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 235000010208 anthocyanin Nutrition 0.000 description 1
- 229930002877 anthocyanin Natural products 0.000 description 1
- 239000004410 anthocyanin Substances 0.000 description 1
- 150000004636 anthocyanins Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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- PFHZIWAVXDSFTB-UHFFFAOYSA-N hibiscusoic acid Natural products OC(=O)C1OC(=O)CC1(O)C(O)=O PFHZIWAVXDSFTB-UHFFFAOYSA-N 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
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- 239000011574 phosphorus Substances 0.000 description 1
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- JAOZKJMVYIWLKU-UHFFFAOYSA-N sodium 7-hydroxy-8-[(4-sulfonaphthalen-1-yl)diazenyl]naphthalene-1,3-disulfonic acid Chemical compound C1=CC=C2C(=C1)C(=CC=C2S(=O)(=O)O)N=NC3=C(C=CC4=CC(=CC(=C43)S(=O)(=O)O)S(=O)(=O)O)O.[Na+] JAOZKJMVYIWLKU-UHFFFAOYSA-N 0.000 description 1
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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
Abstract
The invention relates to the field of agricultural planting, and particularly discloses a cultivation method for two harvests of roselle one year, which comprises the following steps: (1) preparing seedling cups (2), growing seedlings, (3) preparing soil, (4) transplanting in a field, (5) treating short sunshine, (6) harvesting for the first time, (7) erasing buds, (8) managing water and fertilizer, (9) preventing and treating main diseases and insect pests, and (10) harvesting for the second time. By adopting the technical measures of seedling raising in advance, short-day treatment, urea dressing after first harvesting, small bud wiping and the like, the method realizes two harvests of roselle in one year in one planting period and effectively improves the yield of the roselle; meanwhile, the first harvest leads the fresh roselle fruits and the fresh sepals to be listed 3 months earlier than the conventional cultivation method, avoids the concentrated listing time of the roselle, greatly improves the economic benefit of the roselle planting, and further optimizes the planting structure. The cultivation method is particularly suitable for popularization and application in southern areas.
Description
Technical Field
The invention belongs to the field of agricultural planting, and particularly relates to a cultivation method for two harvests of roselle in one year.
Background
Hibiscus sabdariffa L is a plant of Hibiscus genus of Malvaceae family, also called Hibiscus sabdariffa, Solanum torvum Linn, and Prunus persica K. Tropical and subtropical short-day economic crops with various nutritional values, medicinal values and health-care functions. The dry or fresh calyx of the roselle has the commercial value, the fresh calyx has a fleshy structure and is succulent, the roselle calyx contains abundant proteins, organic acids, vitamin C, various amino acids and mineral substances required by human bodies, such as iron, calcium, phosphorus and the like, and the roselle calyx contains hibiscus acid, anthocyanin, reducing sugar and the like which have important medicinal and health-care effects on human bodies. The sepals of the roselle in the mature period are rose or purple red, have high ornamental value, are suitable for being used as ornamental flowers, are fond of warm light and early frost, and are suitable for being cultivated in the south area of the Yangtze river in China. At present, China has large-area planting and cultivation in Guangxi, Guangdong, Fujian, Yunnan and other places.
Roselle belongs to typical short-day crops, and in southern areas, the roselle flowers and fruits begin to blossom and bear fruits when the roselle seeds enter short day in 9 months no matter in spring or summer, namely the roselle seeds are harvested once a year in the positive season in southern areas, and generally come into the market intensively in 10-11 months.
Disclosure of Invention
The invention aims to provide a cultivation method for collecting roselle twice a year, thereby overcoming the defect that the roselle is collected once a year and is intensively listed.
In order to achieve the aim, the invention provides a cultivation method for two harvests of roselle a year, which comprises the following steps:
(1) preparing a seedling cup: sterilizing the nutrient soil by hymexazol, and then filling the sterilized nutrient soil into a seedling culture container for later use.
(2) Seedling culture: and (3) starting seedling culture in the last ten days of 3 months, thoroughly watering the nutrient soil in the seedling culture container, sowing roselle seeds, and placing the seedling culture container in an artificial climate chamber at the temperature of 25-27 ℃ for culture.
(3) Land preparation: after deep ploughing, applying base fertilizer, ditching at a row spacing of 0.8m, and finally spraying hymexazol to the whole planting field for soil disinfection.
(4) Transplanting in a field: transplanting in the shade when the seedlings grow to 4 true leaves in the middle ten days of 4 months, removing the seedling container during transplanting, transplanting with soil according to the specification of 0.8m multiplied by 0.8m of plant row spacing, and watering enough root fixing water after transplanting.
(5) Short-day treatment: when the roselle turns green and grows to 5-6 true leaves, a small arched shed is erected above the planting plot, and a black film is covered for shading treatment, so that the sunshine time is 10-11.5h11 h, and the black film is removed after the roselle buds. The plant is promoted to enter the reproductive growth period in advance through short-day treatment.
(6) Harvesting for the first time: when the first flower is opened in the last ten days of the month 5, 5-10 kg/mu of potash fertilizer is applied; and harvesting fresh fruits and fresh sepals in the last 6-7 days of the month to finish the first harvest.
(7) Erasing buds: after the first harvest is finished, 10-20 kg/mu of urea is applied additionally, and small flower buds on plants are erased simultaneously, so that roselle is reversed under the environment of long sunshine outside and enters the vegetative growth again. The roselle vegetative growth and the reproductive growth are inhibited by applying urea.
(8) And (3) water and fertilizer management: performing water and fertilizer management according to the growth vigor of roselle, replenishing water in time for a long time until the relative water holding capacity of field soil reaches 70-80%, and draining water in time if water is accumulated in case of rainstorm; simultaneously 5-10 kg/mu of ternary compound fertilizer (15-15-15) is applied for a long time.
(9) The main pest control: the main diseases in the growth process of roselle are southern blight and damping off, and the southern blight adopts carbendazim wettable powder 800-; the rhizoctonia disease adopts hymexazol with the mass content of 99 percent and mixed with 3000 times of water to irrigate roots, each plant is 200ml and 400ml, and the rhizoctonia disease is treated once every 7 days and is continuously treated for 2 to 3 times.
(10) And (3) harvesting for the second time: and (5) picking fresh fruits and sepals in batches in the last 10 th month to finish the second harvest.
Management not described in the present application is performed by a conventional method. The cultivation method is particularly suitable for popularization and application in southern areas of China or areas with similar climatic conditions.
Preferably, in the step (1), 99% of hymexazol disinfection nutrient soil is adopted, and every 1g of hymexazol and 15kg of nutrient soil are mixed with soil for disinfection. The nutrient soil can be purchased from the market. Through the disinfection of the nutrient soil, the occurrence of soil-borne diseases is reduced, and the cultivation of healthy seedlings is facilitated.
Preferably, in the step (3), 420kg of base fertilizer is applied to each mu of land, and the base fertilizer is prepared from a ternary compound fertilizer (15-15-15) and an organic fertilizer according to the weight ratio of 1: 20 are mixed together. The organic fertilizer can adopt decomposed animal excrement.
Preferably, in the step (3), 250 ml of hymexazol water solution with the mass content of 15 percent and 800ml of mixed water are sprayed to the whole planting field per mu for soil disinfection. Reduce the occurrence of plant diseases and insect pests.
Preferably, the outdoor temperature is stabilized at 15-20 ℃ during transplanting. Preferably, the outdoor temperature is stabilized at 15 ℃.
Preferably, in step (5), the black film is covered at 18:00-18:30 pm, and the next day is 7 am: and (5) uncovering the black film at a ratio of 00-8: 00.
Preferably, in step (6), the first harvest is picked twice, with an interval of 7-10 days. The quality of the fresh fruits and sepals can be ensured by batch harvesting. In order not to affect the second harvest, two batches are generally harvested.
Preferably, in the step (10), roselle begins to flower in the last 9 th month, sepals begin to be picked after 30 days of flowering, fresh fruits are cut and harvested, the cores are timely removed, and the fruit cores and the sepals are separately aired. The sepals are preserved in a moisture-proof manner in time after being dried in the sun. At this time, the sepals are of the best quality. Meanwhile, picking is carried out in batches, so that the quality and commodity of sepals are guaranteed.
Preferably, in step (10), the harvest is carried out once every 7-8 days, or about 4 times.
Compared with the prior art, the invention has the following beneficial effects:
the method comprises the steps of raising seedlings in advance in a greenhouse in spring (3 late months), transplanting seedlings when the outdoor air temperature is stable above 15 ℃ in the middle of 4 months, carrying out short-day treatment after the seedlings turn green, and harvesting fresh fruits and fresh sepals in the late 6 months and the early 7 months; after harvest is finished in the last 7 months, 10-20 kg/mu of urea is applied additionally, vegetative growth of roselle plants is promoted, reproductive growth is inhibited, small flower buds on the roselle plants are removed, the roselle plants are reversed in an external long-day environment and enter vegetative growth again, the roselle plants are converted into reproductive growth again until the roselle plants enter short-day in 9 months, and fresh fruits and fresh sepals can be picked in batches in the last 10 months. The technical measures of seedling raising in advance, short-day treatment, urea dressing after first harvesting, small bud removal and the like are adopted, so that the two-year harvesting of the roselle is realized in one planting period, and the yield of the roselle is effectively improved; meanwhile, the cultivation method of harvesting roselle in two years in one year leads the first harvest of fresh roselle fruits and fresh sepals to be listed 3 months earlier than the conventional cultivation method, avoids the concentrated listing time of roselle, greatly improves the economic benefit of roselle planting, and further optimizes the planting structure.
Detailed Description
The following detailed description of specific embodiments of the invention is provided, but it should be understood that the scope of the invention is not limited to the specific embodiments.
Example 1
This example was carried out in 2017 at the test site of Guangxi academy of agricultural sciences, and the cultivation method included the following steps:
(1) preparing a seedling cup, mixing the hymexazol with the content of 99% according to the proportion of 1g to 15kg of nutrient soil, disinfecting, and then filling the seedling cup into a paper cup with the volume of 200ml for later use.
(2) And (4) seedling raising, wherein the seedlings are watered thoroughly with bottom moisture water in 25 days in 3 months, 2 seeds are sowed in each nutrition cup, the seedlings are cultured in an artificial climate room with the temperature of 25-27 ℃, and the seedlings are transferred to the field when the seedlings grow to 4 true leaves.
(3) Preparing soil and base fertilizer, deep ploughing, applying 20kg of ternary compound fertilizer (15-15-15) and 400kg of organic fertilizer as base fertilizer per mu, and ditching at a row spacing of 0.8 m. Finally, spraying 600ml of hymexazol of 15 percent of water agent and water to the whole planting field for soil disinfection.
(4) Transplanting in field for 4 months and 15 days, wherein the seedlings grow to 4 true leaves, removing paper cups when transplanting, transplanting with soil according to the specification of 0.8m multiplied by 0.8m, transplanting 1042 plants per mu, and watering enough rooting water after transplanting.
(5) And (3) short-day treatment, namely when the roselle is green and grows to 5-6 true leaves, erecting a small arched shed above the planting plot, covering a black film for shading treatment, and enabling the sunshine time to be 11 hours, namely covering the black film at 18:30 in the afternoon, uncovering the black film at 7:30 in the afternoon, and stopping shading treatment until the roselle buds appear.
(6) Harvesting for the first time, when the first flower is opened in the last ten days of the month 5, additionally applying 5 kg/mu of potassium fertilizer, picking the first batch of fresh fruits and fresh sepals after 30 days, picking the second batch of fresh fruits and fresh sepals after 7 days, and stopping picking after two batches of fruits are picked to finish the first harvesting.
(7) And (3) removing buds, namely, after the first harvest is finished in the last 7 th month, additionally applying 20 kg/mu of urea, and simultaneously removing small buds on the plants to promote the roselle to reverse in the environment of long sunshine outside and enter the vegetative growth again.
(8) Water and fertilizer management, namely performing water and fertilizer management according to the growth vigor of roselle, timely supplementing water for a long time until the relative water holding capacity of field soil reaches 70-80%, and timely draining water if water is accumulated in case of rainstorm; simultaneously, 10kg of ternary compound fertilizer (15-15-15) is properly applied according to the growth vigor of roselle.
(9) And (3) pest control, wherein main diseases in the growth process of the roselle are southern blight and damping off. For southern blight, 800 times of liquid of 50% carbendazim wettable powder is adopted for root irrigation; the rhizoctonia disease is irrigated with 3000 times of 99% hymexazol mixed with water, each plant is 400ml, and the rhizoctonia disease is irrigated once every 7 days for 3 times continuously.
(10) Harvesting for the second time, wherein the flowers begin to bloom in the last ten days of 9 months, the fruits begin to be picked in batches in 8 days of 10 months, and the fruits are picked once every 7 days and 4 times. 30d after blooming is the optimal sepal picking period, and the sepals are picked in batches in order to ensure the quality and commodity of the sepals. The fresh fruits are cut and harvested, the kernels are timely removed, the kernels and the sepals are separately aired, and the sepals are timely stored in a moisture-proof manner after being aired. 1330kg of fresh roselle fruits and 920 kg of fresh sepals can be collected per mu averagely.
Example 2
This example was carried out in 2018 at the test site of Guangxi academy of agricultural sciences, and the cultivation method included the following steps:
(1) preparing a seedling cup, mixing the hymexazol with the content of 99% according to the proportion of 1g to 15kg of nutrient soil, disinfecting, and then filling the seedling cup into a paper cup with the volume of 200ml for later use.
(2) And (3) seedling raising, wherein the seedling raising cups are thoroughly watered with bottom moisture water in 28 days in 3 months, 2 seeds are sowed in each nutrition cup, the seedlings are cultured in an artificial climate chamber at the temperature of 25-27 ℃, and the seedlings are transferred to the field when the seedlings grow to 4 true leaves.
(3) Preparing soil and base fertilizer, deep ploughing, applying 20kg of ternary compound fertilizer (15-15-15) and 450kg of organic fertilizer as base fertilizer per mu, and ditching at a row spacing of 0.8 m. Finally, spraying 600ml of hymexazol of 15 percent of water agent and water to the whole planting field for soil disinfection.
(4) Transplanting in a field for 4 months and 16 days, removing paper cups when transplanting, transplanting with soil according to the specification of 0.8m multiplied by 0.8m, transplanting 1042 plants per mu, and watering enough rooting water after transplanting.
(5) And (3) short-day treatment, namely when the roselle turns green and grows to 5-6 true leaves, erecting a small arched shed above the planting plot, covering a black film for shading treatment, and enabling the sunshine duration to be 10 hours, namely covering the black film at 18:00 in the afternoon, uncovering the black film at 8:00 in the afternoon, and stopping shading treatment until the roselle buds appear.
(6) And (3) harvesting for the first time, wherein when the first flower is opened at 23 months of 5, 5-10 kg/mu of potassium fertilizer is additionally applied, the first batch of fresh fruits and fresh sepals are picked after 30 days, the second batch of fresh fruits and fresh sepals are picked after 7 days, and the picking is stopped after the two batches of fruits are picked to finish the first harvesting.
(7) Removing buds at 7 months and 10 days, dressing urea 10-20 kg/mu after the first harvest, and removing small buds on the plants to promote the roselle to reverse under the environment of long sunshine and enter the vegetative growth again.
(8) Water and fertilizer management, namely performing water and fertilizer management according to the growth vigor of roselle, timely supplementing water for a long time until the relative water holding capacity of field soil reaches 70-80%, and timely draining water if water is accumulated in case of rainstorm; simultaneously, 5kg of ternary compound fertilizer (15-15-15) is properly applied according to the growth vigor of roselle.
(9) And (3) pest control, wherein main diseases in the growth process of the roselle are southern blight and damping off. For southern blight, 1000-fold 1500-time liquid of 80% mancozeb wettable powder is adopted for root irrigation; the rhizoctonia disease is irrigated with 3000 times of 99% hymexazol mixed with water, each plant is 400ml, and the rhizoctonia disease is irrigated once every 7 days for 3 times continuously.
(10) Harvesting for the second time, wherein the flowering starts at 8 days in 9 months, the fruits are picked in batches at 10 days in 10 months, and the fruits are picked once every 7-8 days and 4 times. 30d after blooming is the optimal sepal picking period, and the sepals are picked in batches in order to ensure the quality and commodity of the sepals. The fresh fruits are cut and harvested, the kernels are timely removed, the kernels and the sepals are separately aired, and the sepals are timely stored in a moisture-proof manner after being aired.
1270kg of fresh roselle fruits and 900 kg of fresh sepals can be collected per mu averagely.
In conclusion, by adopting the technical measures of seedling raising in advance, short-day treatment, urea dressing after first harvesting, small flower bud wiping and the like, the two harvests of the roselle in one year are realized in one planting period, 1300kg of the fresh roselle fruits and 910kg of the fresh sepals are collected per mu averagely, and compared with the fresh roselle fruits produced by the conventional cultivation method of one harvest in one year, the yield per mu of the fresh roselle fruits is increased by 100 kg, and the yield per mu of the fresh sepals is increased by 80 kg. And the fresh roselle fruits and the fresh sepals are listed 3 months earlier than the conventional cultivation method, the average of the fresh fruits is 40-50 yuan/kg, the price of the fresh fruits is 12-20 yuan/kg, and each kg of the fresh fruits is 20-30 yuan higher than that of the fresh roselle fruits. Greatly improves the economic benefit of the planting of the roselle.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (4)
1. A cultivation method for two harvests of roselle in one year is characterized by comprising the following steps:
(1) preparing a seedling cup: sterilizing the nutrient soil by hymexazol, and then filling the nutrient soil into a seedling culture container for later use; adopting 99% of hymexazol disinfection nutrient soil by mass content, and mixing 1g of hymexazol and 15kg of nutrient soil for disinfection;
(2) seedling culture: in late 3 months, thoroughly watering the nutrient soil in the seedling culture container, sowing roselle seeds, and placing the seedling culture container in an artificial climate chamber at the temperature of 25-27 ℃ for culture;
(3) land preparation: applying base fertilizer after deep ploughing and harrowing, ditching at a row spacing of 0.8m, and finally spraying hymexazol to the whole planting field for soil disinfection; applying 420kg of base fertilizer per mu of land, wherein the base fertilizer is prepared from ternary compound fertilizer (15-15-15) and organic fertilizer according to the weight ratio of 1: 20 are mixed; spraying 250 ml of hymexazol water solution with the mass content of 15% and 800ml of mixed water to a whole planting field per mu for soil disinfection;
(4) transplanting in a field: transplanting in the shade when the seedlings grow to 4 true leaves in the middle ten days of 4 months, removing a seedling container during transplanting, transplanting with soil according to the specification of 0.8m multiplied by 0.8m of plant row spacing, and watering enough root fixing water after transplanting;
(5) short-day treatment: when the roselle turns green and grows to 5-6 true leaves, a small arched shed is erected above the planting plot, a black film is covered for shading treatment, the black film is covered at 18:00-18:30 in the afternoon, the black film is uncovered at 7:00-8:00 in the morning next day, the sunshine time is 10-11.5 hours, and the black film is uncovered after roselle buds appear;
(6) harvesting for the first time: when the first flower is opened in the last ten days of the month 5, 5-10 kg/mu of potash fertilizer is applied; harvesting fresh fruits and sepals in the last 6-7 days of the month, and finishing the first harvesting; wherein, the first harvest is picked twice, and the interval between every two harvests is 7-10 days;
(7) erasing buds: after the first harvest is finished, dressing 10-20 kg/mu of urea, simultaneously erasing small flower buds on the plants, and promoting the roselle to reverse in the environment of long sunshine outside and enter the vegetative growth again;
(8) and (3) water and fertilizer management: performing water and fertilizer management according to the growth vigor of roselle, replenishing water to the soil in the field with a relative water holding capacity of 70-80% for a long time, and draining water in time if water is accumulated in case of rainstorm; simultaneously, 5-10 kg/mu of ternary compound fertilizer (15-15-15) is applied for a long time;
(9) the main pest control: the main diseases in the growth process of roselle are southern blight and damping off, and the southern blight adopts carbendazim wettable powder 800-; the rhizoctonia disease is irrigated to roots by mixing hymexazol with the mass content of 99% and water by 3000 times, wherein each plant is 400ml, and the rhizoctonia disease is irrigated once every 7 days for 2-3 times continuously;
(10) and (3) harvesting for the second time: picking fresh fruits and sepals in batches in the last ten days of 10 months, picking once every 7-8 days, and picking 4 times to finish the second harvest.
2. The cultivation method according to claim 1, wherein the container for raising seedlings is a paper cup having a volume of 200 mL.
3. The cultivation method as claimed in claim 1, wherein the outdoor temperature is stabilized at 15-20 ℃ at the time of transplanting.
4. The cultivation method as claimed in claim 1, wherein in step (10), roselle begins to flower in the first 9 th month, sepals begin to be picked after 30 days of flowering, fresh fruits are cut and harvested, and the kernels and sepals are separated and aired.
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| CN105766309A (en) * | 2016-03-16 | 2016-07-20 | 邓仁双 | Cultivation method of hibiscus sabdariffa in Dongting lake district |
| CN106105738A (en) * | 2016-07-25 | 2016-11-16 | 柳州永旺科技有限公司 | A kind of implantation methods of Calyx Hibisci Sabdariffae |
| CN109744063A (en) * | 2017-11-02 | 2019-05-14 | 云南省农业科学院热区生态农业研究所 | A kind of dry-hot valley grape 1 year two cultural method received |
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| CN105766309A (en) * | 2016-03-16 | 2016-07-20 | 邓仁双 | Cultivation method of hibiscus sabdariffa in Dongting lake district |
| CN106105738A (en) * | 2016-07-25 | 2016-11-16 | 柳州永旺科技有限公司 | A kind of implantation methods of Calyx Hibisci Sabdariffae |
| CN109744063A (en) * | 2017-11-02 | 2019-05-14 | 云南省农业科学院热区生态农业研究所 | A kind of dry-hot valley grape 1 year two cultural method received |
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