CN103141295A - Onion seed production method - Google Patents
Onion seed production method Download PDFInfo
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- CN103141295A CN103141295A CN2013101148410A CN201310114841A CN103141295A CN 103141295 A CN103141295 A CN 103141295A CN 2013101148410 A CN2013101148410 A CN 2013101148410A CN 201310114841 A CN201310114841 A CN 201310114841A CN 103141295 A CN103141295 A CN 103141295A
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- 241000234282 Allium Species 0.000 title claims abstract description 27
- 235000002732 Allium cepa var. cepa Nutrition 0.000 title claims abstract description 27
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 23
- 238000009331 sowing Methods 0.000 claims abstract description 21
- 201000010099 disease Diseases 0.000 claims abstract description 11
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 claims abstract description 11
- 241000607479 Yersinia pestis Species 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 29
- 239000003337 fertilizer Substances 0.000 claims description 28
- 239000007788 liquid Substances 0.000 claims description 24
- 238000005507 spraying Methods 0.000 claims description 20
- 241000196324 Embryophyta Species 0.000 claims description 17
- 239000000843 powder Substances 0.000 claims description 16
- 238000009736 wetting Methods 0.000 claims description 16
- 239000002689 soil Substances 0.000 claims description 13
- 241001290610 Abildgaardia Species 0.000 claims description 12
- 241000238631 Hexapoda Species 0.000 claims description 9
- 241000918585 Pythium aphanidermatum Species 0.000 claims description 8
- 239000005842 Thiophanate-methyl Substances 0.000 claims description 8
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 8
- 239000004202 carbamide Substances 0.000 claims description 8
- 239000002131 composite material Substances 0.000 claims description 8
- 210000003608 fece Anatomy 0.000 claims description 8
- 239000010871 livestock manure Substances 0.000 claims description 8
- QGHREAKMXXNCOA-UHFFFAOYSA-N thiophanate-methyl Chemical compound COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC QGHREAKMXXNCOA-UHFFFAOYSA-N 0.000 claims description 8
- 239000004563 wettable powder Substances 0.000 claims description 8
- 238000009395 breeding Methods 0.000 claims description 6
- 230000001488 breeding effect Effects 0.000 claims description 6
- 230000010152 pollination Effects 0.000 claims description 5
- XERJKGMBORTKEO-VZUCSPMQSA-N (1e)-2-(ethylcarbamoylamino)-n-methoxy-2-oxoethanimidoyl cyanide Chemical compound CCNC(=O)NC(=O)C(\C#N)=N\OC XERJKGMBORTKEO-VZUCSPMQSA-N 0.000 claims description 4
- 240000002234 Allium sativum Species 0.000 claims description 4
- 239000005756 Cymoxanil Substances 0.000 claims description 4
- 239000005696 Diammonium phosphate Substances 0.000 claims description 4
- 239000005906 Imidacloprid Substances 0.000 claims description 4
- 239000005802 Mancozeb Substances 0.000 claims description 4
- 239000005807 Metalaxyl Substances 0.000 claims description 4
- 240000005373 Panax quinquefolius Species 0.000 claims description 4
- 235000003140 Panax quinquefolius Nutrition 0.000 claims description 4
- 241000233679 Peronosporaceae Species 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 241000339374 Thrips tabaci Species 0.000 claims description 4
- RDXARWSSOJYNLI-UHFFFAOYSA-N [P].[K] Chemical compound [P].[K] RDXARWSSOJYNLI-UHFFFAOYSA-N 0.000 claims description 4
- 239000002775 capsule Substances 0.000 claims description 4
- 239000004927 clay Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 238000005336 cracking Methods 0.000 claims description 4
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 claims description 4
- 229910000388 diammonium phosphate Inorganic materials 0.000 claims description 4
- 235000019838 diammonium phosphate Nutrition 0.000 claims description 4
- 239000012467 final product Substances 0.000 claims description 4
- 229940084434 fungoid Drugs 0.000 claims description 4
- 238000003306 harvesting Methods 0.000 claims description 4
- YWTYJOPNNQFBPC-UHFFFAOYSA-N imidacloprid Chemical compound [O-][N+](=O)\N=C1/NCCN1CC1=CC=C(Cl)N=C1 YWTYJOPNNQFBPC-UHFFFAOYSA-N 0.000 claims description 4
- 229940056881 imidacloprid Drugs 0.000 claims description 4
- 238000007689 inspection Methods 0.000 claims description 4
- ZQEIXNIJLIKNTD-UHFFFAOYSA-N methyl N-(2,6-dimethylphenyl)-N-(methoxyacetyl)alaninate Chemical compound COCC(=O)N(C(C)C(=O)OC)C1=C(C)C=CC=C1C ZQEIXNIJLIKNTD-UHFFFAOYSA-N 0.000 claims description 4
- 239000000618 nitrogen fertilizer Substances 0.000 claims description 4
- 230000035699 permeability Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 238000003892 spreading Methods 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000010902 straw Substances 0.000 claims description 4
- ZSDSQXJSNMTJDA-UHFFFAOYSA-N trifluralin Chemical compound CCCN(CCC)C1=C([N+]([O-])=O)C=C(C(F)(F)F)C=C1[N+]([O-])=O ZSDSQXJSNMTJDA-UHFFFAOYSA-N 0.000 claims description 4
- 238000009423 ventilation Methods 0.000 claims description 4
- 238000009333 weeding Methods 0.000 claims description 4
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 3
- 230000017260 vegetative to reproductive phase transition of meristem Effects 0.000 abstract description 3
- 238000002360 preparation method Methods 0.000 abstract 1
- 239000012297 crystallization seed Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000002362 mulch Substances 0.000 description 1
- 230000005070 ripening Effects 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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- Cultivation Of Plants (AREA)
- Pretreatment Of Seeds And Plants (AREA)
Abstract
The invention discloses an onion seed production method. The method comprises the following steps of: selecting stock seeds reproduced by an autumn sowing three-year seed collecting method as a sowing material; performing seedling bed preparation; sowing at Huang-Huai areas in early august; managing after sowing; planting; performing field management; preventing and controlling pest and disease damage; collecting the seeds; and the like. According to the method, a small stock seed reserving method is adopted, so that the seed reproduction period can be shortened, the working hour is saved, and the cost is reduced; and the method is suitable for elite seed production of production seeds. According to the method, the greenhouse is adopted for performing small stock seed reserving, so that the temperature can be kept in winter, the growth of onion seedlings is promoted, and the onion bolting percentage is improved; the management can be facilitated, and the pest and disease damage at the flowering phase and the grain filling phase is reduced; and the influence of rainwater on flowering and grain filling can be prevented by a greenhouse film so as to reduce the loss. The seed production capacity is improved.
Description
Technical field
The present invention relates to a kind of producing method for seed, particularly a kind of method of the onion production of hybrid seeds.
Background technology
Onion is androgynous cross-pollinatd plant.In prior art, onion is all to adopt traditional 3 years seed collecting methods of autumn sowing to carry out the production of hybrid seeds, and production of hybrid seeds process needs through 3 years ability results seeds.This producing method for seed length consuming time, seed production efficiency is low.
Summary of the invention
Technical problem to be solved by this invention is for the deficiencies in the prior art, provide a kind of simple, can effectively shorten the onion production of hybrid seeds time limit, improve the method for the onion production of hybrid seeds of onion seed production efficiency.
Technical problem to be solved by this invention is to realize by following technical scheme.The present invention is a kind of method of the onion production of hybrid seeds, is characterized in, its step is as follows:
(1) seed selection: select to use the original seed of autumn sowing seed collecting method breeding in 3 years as the sowing material;
(2) prepare in the seedbed: select the pH value to be that 6～8 soil layer is deep, fertile, permeability is good, plant sandy loam or the loam of green onion garlic class the year ends 2～3; Every 666.7m
2The seedbed apply the barnyard manure 3000～4000kg that becomes thoroughly decomposed, diammonium phosphate 20 kg evenly spread fertilizer over the fields, and plough under in soil, then make the wide furrow of 1.2～1.5m, the furrow face is smooth;
(3) sowing: early August is sowed at Huang-Huai Area; First water vola water before sowing, then by 3～4g/m
2Seed broadcasting, the seed that falls is even, broadcasts rear covering fine earth 0.5～lcm, then covers one deck sunshade net or the straw cooling moisture-retaining is rainproof; Transplant 666.7m
2200-250g g need to be sowed in the field;
(4) broadcast rear management: broadcast the rear attention inspection situation of emerging, do not water before emerging, come up and take between the lights covering off 70% the time, seedling grows to 2 leaves and carries out later on thinning, weeding 2～3 times;
(5) field planting:
1. select canopy: select the steel pipe plastic tunnel of booth shoulder height 1.6m, the wide 6-8m of canopy, buckle well the booth teleblem;
2. prepare before field planting: 4～5d before field planting, in conjunction with every 666.7m wholely
2Spread fertilizer over the fields high-quality decomposed manure 5000kg, urea 10kg, N:P
2O
5: K
2The composite fertilizer 50kg of O=15:15:15, the thin rake of deep ploughing after fertilising, 20cm is ploughed deeply on meticulous whole ground, and clay fertilizer is mixed, and makes high furrow after raking, the wide ditch 1.5m that contains of furrow, every 666.7m
2Be watered the 30kg spraying with 48% trifluralin ec 150～200ml, lay the dropper band, spreading;
3. field planting: select seedling age 55～60d, plant height 15～20cm, three wholeheartedly to four of leaf leaves are without damage by disease and insect, divide the field planting of fraction furrow by large and small seedling, Plant colonization, distance between rows and hills is 15cm * (13～15) cm, plants straight, 2cm surface planting, root and soil are combined closely, and seal planting pit, water after field planting;
(6) field management: in time look into seedling after slow seedling, fill the gaps with seedlings; Before surviving the winter, in time water freeze-up water; When the green onion seedling is turned green, in conjunction with watering, every 666.7m
2Urea 25kg and N:P spread manuer in holes
2O
5: K
2The composite fertilizer 20kg of O=15:15:15.The bulb expanding stage, every 666.7m
2Sealing fertilizer 30kg, 7～10d water water one time; The bolting rear combination of blooming is watered and can be taken the circumstances into consideration again to topdress; Take nitrogenous fertilizer as main, spend rear increasing application phosphorus potassium fertilizer before spending; The Sheng of the blooming phase, carry out as required supplementary pollination; For preventing lodging, suitably control rich water before bolting, prevent excessive growth, after green onion a kind of sedge grows to 1m, timely built is held up a kind of sedge;
(7) extermination of disease and insect pest
1. fungoid damping off, damping off: Qi Miaohou with 800 times of liquid even spraying controls of 70% thiophanate-methyl wetting powder, prevents and treats interval 7～10d 2～3 times continuously;
2. onion thrips: growing period with 2000 times of liquid even spraying controls of 10% imidacloprid wettable powder, is prevented and treated interval 7～10d 2～3 times on demand continuously;
3. purple spot: growing period with 500～800 times of liquid of 75% tpn wetting powder or 800 times of liquid even spraying controls of 70% thiophanate-methyl wetting powder, is prevented and treated interval 7～10d 2～3 times on demand continuously;
4. downy mildew: growing period with 500 times of liquid of 25% metalaxyl wetting powder or 600～700 times of liquid even spraying controls of 72% cymoxanil mancozeb wettable powder, is prevented and treated interval 7～10 d 2～3 times on demand continuously;
(8) seed collection: a small amount of capsule blackening cracking is arranged at the bouquet top, is Harvesting Date, and this moment is the clip bouquet in time, and seed ftractures and comes off late; Stay the long 15～20cm of colored a kind of sedge during the clipping and carving ball, be placed on ventilation after-ripening 4-5d, then airing; After the fully dried duty of bouquet is dry, threshing, cleans and get final product.
Compared with prior art, the present invention adopts the little strain method of reserving seed for planting, and can shorten the breeding time limit, saves man-hour, reduces costs, be suitable for producing with kind stock breeding.The inventive method adopts booth to carry out the little strain production of hybrid seeds, and can be incubated winter, promotes the growth of green onion seedling, improves onion bolting rate; Can conveniently manage, reduce florescence and pustulation period damage by disease and insect; The canopy film can prevent that rainwater from the impact of flowering and grouting, reducing the loss.Improve production of hybrid seeds amount.
Embodiment
Below further describe concrete technical scheme of the present invention, so that those skilled in the art understands the present invention further, and do not consist of its Copyright law.
Embodiment 1, a kind of method of the onion production of hybrid seeds, and its step is as follows:
(1) seed selection: select to use the original seed of autumn sowing seed collecting method breeding in 3 years as the sowing material;
(2) prepare in the seedbed: select the pH value to be that 6～8 soil layer is deep, fertile, permeability is good, plant sandy loam or the loam of green onion garlic class the year ends 2～3; Every 666.7m
2The seedbed apply the barnyard manure 3000～4000kg that becomes thoroughly decomposed, diammonium phosphate 20 kg evenly spread fertilizer over the fields, and plough under in soil, then make the wide furrow of 1.2～1.5m, the furrow face is smooth;
(3) sowing: early August is sowed at Huang-Huai Area; First water vola water before sowing, then by 3～4g/m
2Seed broadcasting, the seed that falls is even, broadcasts rear covering fine earth 0.5～lcm, then covers one deck sunshade net or the straw cooling moisture-retaining is rainproof; Transplant 666.7m
2200-250g g need to be sowed in the field;
(4) broadcast rear management: broadcast the rear attention inspection situation of emerging, do not water before emerging, come up and take between the lights covering off 70% the time, seedling grows to 2 leaves and carries out later on thinning, weeding 2～3 times;
(5) field planting:
1. select canopy: select the steel pipe plastic tunnel of booth shoulder height 1.6m, the wide 6-8m of canopy, buckle well the booth teleblem;
2. prepare before field planting: 4～5d before field planting, in conjunction with every 666.7m wholely
2Spread fertilizer over the fields high-quality decomposed manure 5000kg, urea 10kg, N:P
2O
5: K
2The composite fertilizer 50kg of O=15:15:15, the thin rake of deep ploughing after fertilising, 20cm is ploughed deeply on meticulous whole ground, and clay fertilizer is mixed, and makes high furrow after raking, the wide ditch 1.5m that contains of furrow, every 666.7m
2Be watered the 30kg spraying with 48% trifluralin ec 150～200ml, lay the dropper band, spreading;
3. field planting: select seedling age 55～60d, plant height 15～20cm, three wholeheartedly to four of leaf leaves are without damage by disease and insect, divide the field planting of fraction furrow by large and small seedling, Plant colonization, distance between rows and hills is 15cm * (13～15) cm, plants straight, 2cm surface planting, root and soil are combined closely, and seal planting pit, water after field planting;
(6) field management: in time look into seedling after slow seedling, fill the gaps with seedlings; Before surviving the winter, in time water freeze-up water; When the green onion seedling is turned green, in conjunction with watering, every 666.7m
2Urea 25kg and N:P spread manuer in holes
2O
5: K
2The composite fertilizer 20kg of O=15:15:15.The bulb expanding stage, every 666.7m
2Sealing fertilizer 30kg, 7～10d water water one time; The bolting rear combination of blooming is watered and can be taken the circumstances into consideration again to topdress; Take nitrogenous fertilizer as main, spend rear increasing application phosphorus potassium fertilizer before spending; The Sheng of the blooming phase, carry out as required supplementary pollination; For preventing lodging, suitably control rich water before bolting, prevent excessive growth, after green onion a kind of sedge grows to 1m, timely built is held up a kind of sedge;
(7) extermination of disease and insect pest
1. fungoid damping off, damping off: Qi Miaohou with 800 times of liquid even spraying controls of 70% thiophanate-methyl wetting powder, prevents and treats interval 7～10d 2～3 times continuously;
2. onion thrips: growing period with 2000 times of liquid even spraying controls of 10% imidacloprid wettable powder, is prevented and treated interval 7～10d 2～3 times on demand continuously;
3. purple spot: growing period with 500～800 times of liquid of 75% tpn wetting powder or 800 times of liquid even spraying controls of 70% thiophanate-methyl wetting powder, is prevented and treated interval 7～10d 2～3 times on demand continuously;
4. downy mildew: growing period with 500 times of liquid of 25% metalaxyl wetting powder or 600～700 times of liquid even spraying controls of 72% cymoxanil mancozeb wettable powder, is prevented and treated interval 7～10 d 2～3 times on demand continuously;
(8) seed collection: a small amount of capsule blackening cracking is arranged at the bouquet top, is Harvesting Date, and this moment is the clip bouquet in time, and seed ftractures and comes off late; Stay the long 15～20cm of colored a kind of sedge during the clipping and carving ball, be placed on ventilation after-ripening 4-5d, then airing; After the fully dried duty of bouquet is dry, threshing, cleans and get final product.
Embodiment 2, a kind of methods experiment of the onion production of hybrid seeds, and its step is as follows:
(1) seed selection: select No. 5 onion seeds of company green onion with autumn sowing seed collecting method breeding in 3 years;
(2) prepare in the seedbed: select pH value to be that the interior soil layer of 6～8 scopes is deep, fertile, permeability is good, plant sandy loam or the loam of green onion garlic class the year ends 2～3.Every 666.7m
2The seedbed apply the barnyard manure 3000～4000kg that becomes thoroughly decomposed, evenly spread fertilizer over the fields diammonium phosphate 20 kg left and right, ploughs under in soil, then makes the wide high furrow of 1.2～1.5m, the furrow face requires smooth;
(3) sowing: sowing on August 5.First water vola water before sowing, then press 3.5g/m
2The seed broadcasting of left and right, the seed that requires is even, broadcasts rear covering fine earth 0.5～lcm, then covers one deck sunshade net or the straw cooling moisture-retaining is rainproof.Transplant 666.7m
2The 200g left and right need to be sowed in the field;
(4) broadcast rear management: broadcast the rear attention inspection situation of emerging, do not water before emerging, take between the lights covering when coming up 70% left and right off, seedling grows to 2 leaves and carries out later on thinning, weeding 2～3 times;
(5) field planting:
1. select canopy: select the steel pipe plastic tunnel of booth shoulder height 1.6m left and right, the wide 6-8m of canopy, buckle well booth teleblem (surrounding is the overskirt film not).
2. prepare before field planting: 4～5d before field planting, in conjunction with every 666.7m wholely
2Spread fertilizer over the fields high-quality decomposed manure 5000kg, urea 10kg, composite fertilizer (N:P
2O
5: K
2O=15:15:15, lower same) 50kg, after fertilising, deep ploughing is thin harrows, and 20cm is ploughed deeply on meticulous whole ground, and clay fertilizer is mixed, and makes high furrow after raking, the wide 1.5m left and right of furrow (containing ditch), every 666.7m
2Be watered the 30kg spraying with 48% trifluralin ec 150～200ml, lay the dropper band, spreading, mulch film requires to fasten.
3. field planting: select seedling age 55～60d, plant height 15～20cm, three wholeheartedly to four of leaf leaves without damage by disease and insect, divide the field planting of fraction furrow by large and small seedling, Plant colonization, distance between rows and hills is 15cm * (13～15) cm, plants straight, surface planting (approximately 2cm), and root and soil are combined closely, seal planting pit, water flood after field planting one time;
(6) field management
In time look into seedling after slow seedling, fill the gaps with seedlings; Before surviving the winter, in time water freeze-up water, guarantee to pass the winter safely.When the green onion seedling is turned green, in conjunction with watering, every 666.7m
2Urea 25kg and composite fertilizer 20kg spread manuer in holes.The bulb expanding stage, every 666.7m
2Sealing fertilizer 30kg waters water one time depending on soil moisture content 7～10d.The bolting rear combination of blooming is watered and can be taken the circumstances into consideration again to topdress.Take nitrogenous fertilizer as main, spend rear increasing application phosphorus potassium fertilizer before spending.The Sheng of the blooming phase, for improving the pollination ripening rate, according to circumstances can carry out supplementary pollination.For preventing lodging, should suitably control rich water before bolting, prevent excessive growth, green onion a kind of sedge grows to the timely built in 1m left and right and holds up a kind of sedge;
(7) extermination of disease and insect pest
1. fungoid damping off, damping off
Qi Miaohou prevents and treats interval 7～10d 2～3 times continuously with 800 times of liquid even spraying controls of 70% thiophanate-methyl wetting powder;
2. onion thrips
With 2000 times of liquid even spraying controls of 10% imidacloprid wettable powder, prevent and treat continuously interval 7～10d 2～3 times;
3. purple spot
With 500～800 times of liquid of 75% tpn wetting powder or 800 times of liquid even spraying controls of 70% thiophanate-methyl wetting powder, prevent and treat continuously interval 7～10d 2～3 times;
4. downy mildew
With 500 times of liquid of 25% metalaxyl wetting powder or 600～700 times of liquid even spraying controls of 72% cymoxanil mancozeb wettable powder, prevent and treat continuously interval 7～10 d 2～3 times;
Seed collection: a small amount of capsule blackening cracking is arranged at the bouquet top, is Harvesting Date, and this moment is the clip bouquet in time, and seed ftractures and comes off late.Stay colored a kind of sedge to be about 15～20cm during the clipping and carving ball, be placed on ventilation after-ripening 4-5d, then airing.After the abundant drying of bouquet, threshing, clean and get final product.
Claims (2)
1. the method for an onion production of hybrid seeds, is characterized in that, its step is as follows:
(1) seed selection: select to use the original seed of autumn sowing seed collecting method breeding in 3 years as the sowing material;
(2) prepare in the seedbed: select the pH value to be that 6～8 soil layer is deep, fertile, permeability is good, plant sandy loam or the loam of green onion garlic class the year ends 2～3; Every 666.7m
2The seedbed apply the barnyard manure 3000～4000kg that becomes thoroughly decomposed, diammonium phosphate 20 kg evenly spread fertilizer over the fields, and plough under in soil, then make the wide furrow of 1.2～1.5m, the furrow face is smooth;
(3) sowing: early August is sowed at Huang-Huai Area; First water vola water before sowing, then by 3～4g/m
2Seed broadcasting, the seed that falls is even, broadcasts rear covering fine earth 0.5～lcm, then covers one deck sunshade net or the straw cooling moisture-retaining is rainproof; Transplant 666.7m
2200-250g g need to be sowed in the field;
(4) broadcast rear management: broadcast the rear attention inspection situation of emerging, do not water before emerging, come up and take between the lights covering off 70% the time, seedling grows to 2 leaves and carries out later on thinning, weeding 2～3 times;
(5) field planting:
1. select canopy: select the steel pipe plastic tunnel of booth shoulder height 1.6m, the wide 6-8m of canopy, buckle well the booth teleblem;
2. prepare before field planting: 4～5d before field planting, in conjunction with every 666.7m wholely
2Spread fertilizer over the fields high-quality decomposed manure 5000kg, urea 10kg, N:P
2O
5: K
2The composite fertilizer 50kg of O=15:15:15, the thin rake of deep ploughing after fertilising, 20cm is ploughed deeply on meticulous whole ground, and clay fertilizer is mixed, and makes high furrow after raking, the wide ditch 1.5m that contains of furrow, every 666.7m
2Be watered the 30kg spraying with 48% trifluralin ec 150～200ml, lay the dropper band, spreading;
3. field planting: select seedling age 55～60d, plant height 15～20cm, three wholeheartedly to four of leaf leaves are without damage by disease and insect, divide the field planting of fraction furrow by large and small seedling, Plant colonization, distance between rows and hills is 15cm * (13～15) cm, plants straight, 2cm surface planting, root and soil are combined closely, and seal planting pit, water after field planting;
(6) field management: in time look into seedling after slow seedling, fill the gaps with seedlings; Before surviving the winter, in time water freeze-up water; When the green onion seedling is turned green, in conjunction with watering, every 666.7m
2Urea 25kg and N:P spread manuer in holes
2O
5: K
2The composite fertilizer 20kg of O=15:15:15.
2. bulb expanding stage, every 666.7m
2Sealing fertilizer 30kg, 7～10d water water one time; The bolting rear combination of blooming is watered and can be taken the circumstances into consideration again to topdress; Take nitrogenous fertilizer as main, spend rear increasing application phosphorus potassium fertilizer before spending; The Sheng of the blooming phase, carry out as required supplementary pollination; For preventing lodging, suitably control rich water before bolting, prevent excessive growth, after green onion a kind of sedge grows to 1m, timely built is held up a kind of sedge;
(7) extermination of disease and insect pest
1. fungoid damping off, damping off: Qi Miaohou with 800 times of liquid even spraying controls of 70% thiophanate-methyl wetting powder, prevents and treats interval 7～10d 2～3 times continuously;
2. onion thrips: growing period with 2000 times of liquid even spraying controls of 10% imidacloprid wettable powder, is prevented and treated interval 7～10d 2～3 times on demand continuously;
3. purple spot: growing period with 500～800 times of liquid of 75% tpn wetting powder or 800 times of liquid even spraying controls of 70% thiophanate-methyl wetting powder, is prevented and treated interval 7～10d 2～3 times on demand continuously;
4. downy mildew: growing period with 500 times of liquid of 25% metalaxyl wetting powder or 600～700 times of liquid even spraying controls of 72% cymoxanil mancozeb wettable powder, is prevented and treated interval 7～10 d 2～3 times on demand continuously;
(8) seed collection: a small amount of capsule blackening cracking is arranged at the bouquet top, is Harvesting Date, and this moment is the clip bouquet in time, and seed ftractures and comes off late; Stay the long 15～20cm of colored a kind of sedge during the clipping and carving ball, be placed on ventilation after-ripening 4-5d, then airing; After the fully dried duty of bouquet is dry, threshing, cleans and get final product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310114841.0A CN103141295B (en) | 2013-04-03 | 2013-04-03 | Onion seed production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310114841.0A CN103141295B (en) | 2013-04-03 | 2013-04-03 | Onion seed production method |
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| Publication Number | Publication Date |
|---|---|
| CN103141295A true CN103141295A (en) | 2013-06-12 |
| CN103141295B CN103141295B (en) | 2014-08-20 |
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ID=48539857
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310114841.0A Expired - Fee Related CN103141295B (en) | 2013-04-03 | 2013-04-03 | Onion seed production method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105684712A (en) * | 2016-02-19 | 2016-06-22 | 太仓市丰缘农场专业合作社 | High-yield planting method for onions |
| CN106576837A (en) * | 2016-12-18 | 2017-04-26 | 钦州市科学技术开发中心 | Planting method of onions |
| CN109496753A (en) * | 2018-11-20 | 2019-03-22 | 连云港市农业科学院 | A method of improving onion hybrid seed yield and bud rate |
| CN109496754A (en) * | 2018-11-20 | 2019-03-22 | 连云港市农业科学院 | A kind of middle sunshine holocentric, resistance to bolting onion quick breeding and expand numerous method |
| CN112075337A (en) * | 2020-08-10 | 2020-12-15 | 上海蔬菜研究所 | Breeding method of hybrid onions for bolting |
| CN112219716A (en) * | 2020-10-09 | 2021-01-15 | 连云港市农业科学院 | Simple method for preparing hybridization combination in onion field |
| CN112293192A (en) * | 2019-07-25 | 2021-02-02 | 元谋县蔬菜有限责任公司 | Onion cultivation technology |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105684712A (en) * | 2016-02-19 | 2016-06-22 | 太仓市丰缘农场专业合作社 | High-yield planting method for onions |
| CN106576837A (en) * | 2016-12-18 | 2017-04-26 | 钦州市科学技术开发中心 | Planting method of onions |
| CN109496753A (en) * | 2018-11-20 | 2019-03-22 | 连云港市农业科学院 | A method of improving onion hybrid seed yield and bud rate |
| CN109496754A (en) * | 2018-11-20 | 2019-03-22 | 连云港市农业科学院 | A kind of middle sunshine holocentric, resistance to bolting onion quick breeding and expand numerous method |
| CN109496753B (en) * | 2018-11-20 | 2021-02-09 | 连云港市农业科学院 | Method for improving seed production yield and germination rate of onions |
| CN112293192A (en) * | 2019-07-25 | 2021-02-02 | 元谋县蔬菜有限责任公司 | Onion cultivation technology |
| CN112075337A (en) * | 2020-08-10 | 2020-12-15 | 上海蔬菜研究所 | Breeding method of hybrid onions for bolting |
| CN112219716A (en) * | 2020-10-09 | 2021-01-15 | 连云港市农业科学院 | Simple method for preparing hybridization combination in onion field |
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| CN103141295B (en) | 2014-08-20 |
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