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| Morphology and Production technology of Cosmos |
How to Grow Cosmos
English name: Cosmos
Scientific name: Cosmos bipinnatus
Family: Compositeae
Origin: Mexico
Description:
· Habit: Cosmos is a delightful Annual mainly grows in rainy season
· Leaf: Compound and thin
· Size of bract: 8 – 10 cm
· Height: 60 – 120 cm
· Color and variety:
According to the size, flowers are 2 types –
- Large size – ZAGGLER (red), Purity (white), ALPINS BEAUTY (pink), GLORIOUS (pure rose color)
- Small size – Raffle fair (orange), Mandarin
According to season cosmos are 2 types –
- Winter seasonal flower
- Summer seasonal flower
Generally winter seasonal flowers are various in color and summer seasonal flowers are yellow in color.
Production technology:
· Climate: Grow in tropical and subtropical areas but grows best in temperate region
· Soil: It can grow in any soils but grows well in loamy soil. Organic matter reach soil is the best for cultivation. It needs soil pH 5.5 – 7.5
· Means of preparation: By seed
· Land preparation:
· Climate: Grow in tropical and subtropical areas but grows best in temperate region
· Soil: It can grow in any soils but grows well in loamy soil. Organic matter reach soil is the best for cultivation. It needs soil pH 5.5 – 7.5
· Means of preparation: By seed
· Land preparation:
Bed size: 3 – 10 m
Planting method: Direct
Planting time: October – November (in winter), February – March (In summer)
Seed rate: 5 – 8 gm per bed.
Fertilizer dozes:
· Cow dung: 2 – 3 kg
· TSP: 25 gm
· Urea: 50 gm
· MP: 25 gm
Cow ding and TSP, should be applied at the time of land preparation. MP and Urea should be applied after one month of planting.
Intercultural operation:
1. Irrigation
2. Weeding (15 days after)
3. Thinning
1. Irrigation
2. Weeding (15 days after)
3. Thinning
Pest and disease:
· Pest: Aphid, Caterpillar
· Disease: Powdery mildew
· Management / Control: Dithanem – 45
· Peticide: Basudin and Diagina for Catterpillar, Malathion and maladan for Aphid.
· Pest: Aphid, Caterpillar
· Disease: Powdery mildew
· Management / Control: Dithanem – 45
· Peticide: Basudin and Diagina for Catterpillar, Malathion and maladan for Aphid.
Uses: Used as cut and bedding flower
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