Kenyan Farmer’s Handbook: Growing Grafted Tangerines Organically and Profitably

Tangerines, known for their sweet-tart flavor, easy-to-peel skin, and vibrant orange color, are a popular citrus fruit in Kenya, consumed fresh or processed into juice. Grafted tangerine trees, using rootstocks like trifoliate or Carrizo citrange, offer faster maturity, higher yields, and resistance to diseases such as citrus greening. With tangerines fetching KSh 100–150 per kg in local markets and up to KSh 200 per kg for exports, this manual, brought to you by Seedfarm, provides a step-by-step guide for Kenyan farmers to cultivate grafted tangerines profitably, focusing on varieties like Clementine, Murcott, and Dancy.

Why Grafted Tangerines?

• High Demand: Tangerines fetch KSh 100–150 per kg locally (e.g., Nairobi, Mombasa) and KSh 150–200 per kg for exports (e.g., Middle East, Europe), driven by demand for fresh fruit, juice, and snacks.
• Profitability: An acre can yield 8,000–15,000 kg annually, generating KSh 800,000–2.25 million at KSh 100 per kg.
• Fast Maturity: Grafted trees bear fruit in 2–3 years, compared to 5–7 years for non-grafted trees.
• Disease Resistance: Rootstocks like trifoliate resist citrus greening, root rot, and nematodes, enhancing tree longevity.
• Compact Size: Tangerine trees are smaller than oranges, allowing higher planting density and easier management.

Suitable Regions in Kenya

Grafted tangerines thrive in:

• Coastal Areas: Kilifi, Kwale, Mombasa, Tana River (Clementine performs well here).
• Eastern Kenya: Machakos, Makueni, Kitui, Meru, Embu.
• Central Kenya: Murang’a, Kirinyaga, Nyeri (mid-altitude varieties like Murcott).
• Rift Valley: Nakuru, Baringo, Kericho (lower altitudes).
• Nyanza: Homa Bay, Migori, Siaya.

Conditions: Altitudes of 0–2,000 meters, temperatures of 20–32°C, rainfall of 900–1,500 mm annually, and well-drained, loamy soils with a pH of 5.5–7.0. Tangerines tolerate slightly warmer climates than oranges, making them ideal for lowland areas (0–1,200 m) and mid-altitudes (1,200–2,000 m).

Step-by-Step Farming Guide

1. Land Preparation

• Clearing: Remove weeds, stumps, and debris. Plow 2–3 times to a depth of 45–60 cm for good aeration and drainage.
• Soil Testing: Test for pH (optimal: 5.5–7.0) and nutrient levels. Contact Seedfarm.co.ke for soil testing services.
• Raised Beds (Optional): In waterlogged areas like Siaya, use raised beds to prevent root rot.
• Cost Estimate: KSh 30,000–70,000 per acre, depending on land condition and labor rates.

2. Seedling Selection

• Grafted Seedlings: Use certified grafted seedlings (e.g., Clementine, Murcott, Dancy on trifoliate or Carrizo citrange rootstock) for disease resistance, faster fruiting, and higher yields. Non-grafted seedlings are susceptible to citrus greening and take longer to fruit.
• Source: Purchase from trusted suppliers like Seedfarm, OrganicFarm or KEPHIS-certified nurseries. Cost: KSh 150–400 per seedling.
• Quantity: An acre accommodates 150–200 trees at a spacing of 4m x 5m. Total seedling cost: KSh 22,500–80,000 per acre.

3. Planting

• Timing: Plant during the long rains (March–May or October–November) or use irrigation in dry regions like Makueni.
• Hole Preparation: Dig holes 60cm x 60cm x 60cm. Mix topsoil with 15kg of well-decomposed manure and 100g of organic fertilizer (e.g., Safi Sarvi Organic Fertilizer).
• Planting Process: Ensure the graft union is 10–15 cm above the soil line to prevent disease. Place the seedling in the hole, cover with the soil-manure mix, firm gently, and water thoroughly.
• Spacing: Use 4m x 5m for 150–200 trees per acre or 3m x 4m for higher density (up to 250 trees).

4. Crop Management

• Irrigation: Provide 15–25 liters of water per tree weekly during dry spells. Drip irrigation is ideal, costing KSh 50,000–100,000 per acre, especially in coastal or arid areas.
• Mulching: Apply organic mulch (e.g., dry grass, leaves) to conserve moisture, suppress weeds, and regulate soil temperature. Keep mulch away from the graft union.
• Fertilization: Apply organic compost or manure (8–10 tons per acre) annually. Use NPK 17:17:17 (150g per tree) during vegetative growth and foliar feeds (e.g., YaraLiva Nitrabor) for micronutrients like zinc during flowering. Consult Seedfarm agronomists for tailored plans.
• Pruning: Prune after harvest to remove dead branches, improve light penetration, and maintain tree height (2–3 m). Thin fruits to ensure larger, marketable tangerines.
• Intercropping: In the first 2–3 years, intercrop with beans, vegetables, or maize to maximize land use, as seen in orange and mango farming.

5. Pest and Disease Management

• Common Pests:
  • Citrus Psyllids: Transmit citrus greening (HLB). Use neem-based sprays or insecticides like Actara 25 WG.
  • Fruit Flies: Cause fruit rot. Use pheromone traps or baits like methyl eugenol.
  • Mites: Cause leaf stippling. Apply sulfur-based sprays or miticides.
• Common Diseases:
  • Citrus Greening (HLB): Grafted rootstocks reduce risk. Remove infected trees and control psyllids.
  • Anthracnose: Causes dark spots on fruit. Apply copper-based fungicides preventively.
  • Root Rot (Phytophthora): Ensure well-drained soils and avoid overwatering.
• Integrated Pest Management (IPM): Combine cultural practices (e.g., sanitation, pruning) with organic and chemical controls. Seedfarm.co.ke offers pest management consultancy.

6. Harvesting

• Timing: Grafted tangerines bear fruit in 2–3 years, with peak production in years 5–10. Harvest from March to July (main season) or August to October (off-season for higher prices). Fruits are picked when fully colored (orange) and slightly soft.
• Yield Progression:
  • Year 2: 50–100 fruits per tree (4–8 kg).
  • Year 5: 200–400 fruits per tree (15–30 kg).
  • Year 10: 400–800 fruits per tree (30–60 kg).
• Technique: Hand-pick with pruning shears, leaving a short stem to avoid damage. Sort for size (5–7 cm, 80–150g) and quality for export markets. Pack in 8kg cartons for shipping.
• Average Yield: An acre (150 trees) can produce 4,500–9,000 kg annually, generating KSh 450,000–1.35 million at KSh 100 per kg.

Market Opportunities

• Local Markets: Sell to supermarkets (e.g., Naivas, Carrefour), urban markets (e.g., Wakulima, Gikomba), or juicing companies at KSh 100–150 per kg. Off-season harvests (August–October) fetch KSh 150–200 per kg.
• Export Markets: Connect with exporters like Selina Wamucii or Greenway Exporters for prices up to KSh 200 per kg to the Middle East or Europe. Join cooperatives like Machakos Citrus Farmers Cooperative for better market access.
• Value Addition: Process into juice, marmalade, or candied peels for higher returns, similar to orange and mango value chains. Tangerine juice is popular for its sweet-tart flavor.
• Seedfarm Support: Seedfarm.co.ke links farmers to buyers and provides market trend updates. Contact us at 0712-075915.

Challenges and Solutions

• Pests and Diseases: Use grafted seedlings and IPM to minimize losses, especially against citrus greening. Regular monitoring prevents outbreaks.
• Market Glut: Target off-season markets (August–October) or process into juice to avoid low prices during peak season.
• Water Scarcity: Install drip irrigation and mulch to conserve water in dry regions like Kitui. A 5,000-liter water tank costs KSh 20,000–50,000.
• Finance: Access loans through SACCOs or programs like NARIGP. Start with a small plot (e.g., ¼ acre) to manage costs.
• Climate Variability: Use irrigation and windbreaks to mitigate drought and wind damage in coastal areas.

Cost and Profit Analysis (Per Acre)

• Initial Costs:
  • Land preparation: KSh 30,000–70,000.
  • Seedlings (150): KSh 22,500–60,000.
  • Irrigation system: KSh 50,000–100,000.
  • Manure/fertilizer: KSh 15,000–25,000.
  • Total: KSh 117,500–255,000.
• Annual Maintenance: KSh 50,000–100,000 (labor, fertilizers, pest control, water).
• Revenue (Year 5): 150 trees x 30 kg x KSh 100 = KSh 450,000.
• Profit (Year 5): KSh 350,000–400,000 after maintenance costs.

Tips for Success

• Source certified grafted tangerine seedlings from Seedfarm.co.ke to ensure disease resistance and early fruiting.
• Join the Kenya Citrus Growers Association for training and market support.
• Use drip irrigation for consistent yields in semi-arid areas like Machakos or Kilifi.
• Target off-season harvests (August–October) for higher prices (KSh 150–200 per kg).
• Explore value addition (e.g., tangerine juice or candied peels) to boost income, as seen with oranges and mangoes.

Contact Seedfarm

For certified grafted tangerine seedlings, farm visits, or consultancy, reach out via:

• Phone: 0712-075915
• Email: info@seedfarm.co.ke
• Website: www.seedfarm.co.ke
  Visit our nurseries in Murang’a for quality seedlings and free farming guides.

Grafted tangerine farming offers Kenyan farmers a profitable opportunity, with strong demand in local and export markets at prices like KSh 100–150 per kg. With Seedfarm’s certified seedlings and support, you can overcome challenges, tap into value-added products, and build a sustainable agribusiness. Start your tangerine farming journey today and capitalize on Kenya’s thriving citrus industry.