🌸 Organic Horticulture

This lesson builds core elective concepts in BSc Agriculture with practical applications and exam-oriented clarity.

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Organic Horticulture

Scope and Importance

Organic horticulture applies organic farming principles specifically to fruit, vegetable, flower, spice, and plantation crop production. The demand for organic horticultural produce is growing at 20–25% annually in India and globally.

Key Practices

Organic Nutrient Management

• Compost and vermicompost: 5–10 t/ha as basal; regular application builds soil organic carbon
• Green manuring: Sesbania, sunhemp, or Gliricidia prunings incorporated before planting
• Biofertilizers: Azospirillum + PSB + VAM consortium for fruit crops (50–100 g/tree)
• Organic liquid manures: Panchagavya (3% spray), Jeevamrutha (200 L/acre soil drench)
• Neem cake: 2–5 kg/tree for fruit crops (dual role as nutrient + pest deterrent)

Organic Pest and Disease Management

Method	Examples	Target
Biocontrol agents	Trichoderma, Pseudomonas, Trichogramma	Soil-borne diseases, caterpillars
Botanical pesticides	Neem oil (2%), NSKE (5%), pyrethrum	Broad-spectrum insects
Pheromone traps	Methyl eugenol, cue-lure	Fruit flies
Sticky traps	Yellow (whitefly), blue (thrips)	Sucking pests
Permitted fungicides	Bordeaux mixture, sulphur, copper hydroxide	Fungal diseases

Weed Management

• Mulching: Straw, dried leaves, black polythene (permitted in some standards)
• Cover crops: Living mulch between tree rows (leguminous ground covers)
• Manual and mechanical weeding: Weed cutters, brush cutters between rows

Organic Certification for Horticulture

• NPOP/third-party: For export market; 2-year conversion for annual crops, 3 years for perennials
• PGS-India: For domestic market; peer-review based; lower cost
• Record keeping: Detailed input logs, harvest records, sales documentation required

Successful Models in India

• Sikkim: 100% organic state — large cardamom, ginger, turmeric, oranges
• Uttarakhand: Organic valley — off-season vegetables, temperate fruits
• Kerala: Organic spice gardens — pepper, cardamom, vanilla
• Northeast India: Traditional organic — pineapple, passion fruit, kiwi, citrus

Premium and Market Access

• Organic premium: 20–50% over conventional for most horticultural crops
• Export markets: EU, USA, Japan demand organic certified produce
• Domestic: Growing demand through organic stores, e-commerce, farmer markets

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Summary Cheat Sheet

Topic	Key takeaway
Main focus	Organic Horticulture.
Section context	Revise this lesson with the rest of Hi-Tech Horticulture for stronger conceptual continuity.