Dianthus (chinensis & chinensis x barbatus). Deep dive into technology
Syngenta Flowers APAC Technical Webinar for Tropical Regions 10-24-2024 2 p.m.
Inka Orange 70041091
Dianthus portfolio.
NEW
Charm (Dianthus chinensis F1) Pots / Patio pots /Landscape
Super Parfait (Dianthus chinensis F1)
Venti Parfait (Dianthus chinensis F1)
Elation (Dianthus chinensis x barbatus F1)
Patio pots / Landscape
Patio pots / Landscape
Landscape / Pots
individual color
3 colors & 1 mix
4 colors & 1 mix
5 colors & 1 mix
Catalogue reference, page 38.
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5 components of success with Dianthus
pH < 5.8!
Hot start – cold finish.
Long day
Feed your plants.
Negative DIF
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Start to care from seed stage.
Be sure your seeds came from reliable source. Inform Customer Service. Seeds storage. Keep seeds from heat and sun. Proper temperature + 3–5 0 C. Relative humidity 40–60 %. Safe or lockers. Keep open sachet only with temperature + 3–5 0 C.
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Substrate. Keep pH 5.5 ― 5.8
• Porous substrate (Up to 20―30% of perlite). • Suitable substrate components:
cocopeat peatmoss wood fiber peat
Wood fiber based.
• Rinse cocopeat well. • Airy agent: perlite > sand > zeolite > vermiculite. • Sift the substrate to obtain a uniform particle size 0―5 mm. • pH range: 5.5―5.8(5.9) 2 3 4 5 6 7 8
pH < 5.8.
Cocopeat.
Peatmoss plug.
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Sowing / germination stage
• Suggested tray size – 288 cell • Seed – place 1 seed per cell • Do I need to cover the seed? YES Light is not required • Germination chamber - optional • Soil Temp: 23―24 0 C 18 19 20 21 22 23 24 25 26
Level 5 SATURATED
Level 4 WET
Level 3 MEDIUM
Level 2 MEDIUM DRY
Level 1 DRY
Keep substrate moisture on level 3 and 4. Media should be allowed to dry between irrigations
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Young plant stage. Hot start – cold continue.
• Germination temperature:
18 19 20 21 22 23 24 25 26
• Temperature - Day:
18 19 20 21 22 23 24 25 26
- Night:
18 19 20 21 22 23 24 25 26
• Light intensity : 35―45 KLk
Hot start – cold continue
Partial Sun/Shade
Moderate Shade
Full Sun
Light Shade
Heavy Shade
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Young plant stage. Hot start – cold continue.
• Use natural condition (Chandigarh):
Best sowing time
Hot start – cold continue
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Young plant stage. Hot start – cold continue
• Outer shading. • Cooling evaporation. • Better use under bench evaporation system to avoid overwatering.
• Don’t apply spraying too much! And don’t apply it in high humidity condition (when RH higher than 75 %) . It can interrupt transpiration in plant.
Cooling evaporation can help to cool down air in the greenhouse and promotes air circulation
Screens made by flece by fleece
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Young plant stage. Keep pH < 5.8.
• Checking pH regularly: - in the water before every watering. - in the substrate one time per week. • pH range: 5.5―5.8(5.9)
6
2 3 4 5
7 8
• Keep substrate moisture on level 3 and 4 . Media should be allowed to dry between irrigations.
Level 5 SATURATED
Level 4 WET
Level 3 MEDIUM
Level 2 MEDIUM DRY
Level 1 DRY
pH < 5.8.
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Young plant stage. Feed your plants.
• Substrate EC (SME): 0.9―1.3 mS/cm • Provide plant with 75―125 ppm of nitrogen. • Do not use too much phosphorus! • Suitable NPK rate: 15-5-15, 15-3-15 15-5-10, 18-5-15, 17-5-17. • Give fertilizers with every watering.
Proper NPK rate
• Do not use 15 - 15 - 15 or 17 - 17 - 17 ! • Do not use ureum (NH2)2CO! • Do not use clean water (without fertilizers). • Do not use dry fertilizers
Feed your plants
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Dianthus young plants disease management
Most common Dianthus seedling diseases.
Disease
Active ingredients (rate in chemical)
Active Ingredient concentration in solution g/l*
Use as prophylactic
iprodione (50%)
1.25 g/l
tetrachloroisophthalonitrile (82.5%)
0.83–1.2 g/l 0.5–0,75 g/l 0.75–1,25 g/l
Botrytis
fenhexamid (50%)
pentachloronitrobenzene (75%)
azoxystrobin (50%)
0.15 g/l
pyraclostrobin (12.8%) + boscalid (25.2%)
0.03–0.07 g/l pyraclostrobin or/and 0.05–0.15 g/l boscalid
Pythium
propamocarb (600 g/l)
1.8 g/l
+
mancozeb (640 g/kg) + mefenoxam (metalaxyl-M) (40 g/kg)
3.2 g/l mancozeb + 0.2 g/l mefenoxam 0.4 g/l azoxystrobin + 0.16 g/l cyproconazole
azoxystrobin (200 g/l) + cyproconazole (80 g/l)
Alternaria
+
fludioxonil (25 g/l)
0.05 g/l 0.04 g/l
difenoconazole (25 g/l)
Plant protection
* Rotate active ingredients (AI). Don’t apply the same AI more than 3 times at row. Check phytotoxicity!
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Transplanting. Substrates mixtures.
Example of substrate mixtures: 1/3 natural soil + 1/3 vermicompost + 1/6 cocopeat + 1/6 husk compost, 1/3 natural soil + 1/3 vermicompost + 1/3 cocopeat, 1/2 rice husk* + 1/4 cocopeat + 1/4 vermicompost, 1/2 rice husk + 1/4 perlite + 1/4 cocopeat + 1/8 vermicompost… * rice husk has suitable for Dianthus - low pH • Avoid using vermiculite (too high pH) • At ready stage most of component are suitable if you provide good protection. • Add Trichoderma-base or bacterial-base chemical into substrate mixture.
pH < 5.8!
EXAMPLE
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Transplanting. Substrates mixtures.
Use filling components for big containers: coco cheeps,
bark. Pot size: packs,
10 cm pots, 15 cm pots, 30 cm containers.
pH < 5.8!
Put hypocotyl below the substrate surface but don’t put plants too deep
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Vegetation. Negative DIF or cool morning .
• Catharanthus is a really heat and light loving crop. • Temperature - Day:
18 19 20 21 22 23 24 25 26
- Night:
18 19 20 21 22 23 24 25 26
• Light intensity : 35 ―50 KLk
Partial Sun/Shade
Moderate Shade
Full Sun
Light Shade
Heavy Shade
Negative DIF.
• Provide 3 ― 6 0C negative DIF in the morning.
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Vegetation. pH < 5.8. Feed your plants.
• pH range: 5.5―5.8(5.9)
6
2 3 4 5
7 8
• Substrate EC SME: 1.5―2.1 mS/cm • Fertigation: 125―175 ppm of nitrogen
• Keep substrate moisture on level 2 and 4. Media should be allowed to dry between irrigations. Level 5 SATURATED Level 4 WET Level 3 MEDIUM Level 2 MEDIUM DRY
Feed your plants.
Level 1 DRY
pH < 5.8.
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Vegetation. Feed your plants well. • Translate 125―175 ppm of nitrogen to gram of NPK. • Do not use too much phosphorus! • Suitable NPK rate: 15-5-15, 15-3-15 15-5-10, 18-5-15, 17-5-17. How to convert ppm of N into mass of fertilizers? The range of nitrogen recommended in the growing tips is 57―125 ppm. Let’s start with 125 ppm. 125 ppm means 125 mg should be added into 1 l of water. There is available fertilizer with NPK rate like 15–5–17 % on the farm. NPK rate like 15–5–17 contains 15 mg of nitrogen in 100 mg. Thus, to get 125 mg of nitrogen we need to take: (125 x 100)/15 = 833,3* mg of fertilizer. The same calculation for 175 mg of nitrogen we need to take: (175 x 100)/15 = 1166,7 mg of fertilizer. * 833,3 (0.5 g) provides EC in the water about 1,2―1,4 mSm/cm
Proper NPK rate
Feed your plants.
! Don’t forget to provide Ca and Mg every 5 th or 6 th watering!
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Vegetation. Long day.
Long day condition promotes blooming ( Elation series )
Long day
9.5 hours
10.5 hours
11.5 hours
13.5 hours
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Ready to bloom.
• Continue to follow up production scheduling. • Don’t stop to control parameters. • Adjust fertigation compound more suitable for blooming plants: 15-5- 20 , 10-5- 20 . Give them a bit more K • Continue to check pH and EC in the substrate.
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Q&A session.
• Thank you for your time. • For more information, please contact your Key Account Manager.
Amjad.Iqbal@syngenta.com Key Account Manager SEAP (South East Asia & Pakistan) (Pakistan, Thailand, Vietnam, Indonesia, Malaysia, Singapore, Phillipines, Cambodja, etc
Ivan.Pozdnyakov@syngenta.com Technical Sales Specialist SA/SEAP
Gautam.Sangle@syngenta.com Key Account Manager SA (South Asia) (India, Nepal, Bangladesh)
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