Loading…

Loading…

Farmlens Eyes On Earth
Welcome
Sign in to continue
Login Register
Download PDF
Tangerine

Crop details

Tangerine

Citrus reticulata
Family: Rutaceae

Categories

Quick stats

Family Rutaceae
Typical harvest 17.3 t/ha
Varieties 3
Pests & diseases 8
Seasons 3

Crop profile

Growth habit perennial
Days to harvest 365+
Main uses Citrus fruit
Pollination insect
Origin / where it grows SE Asia; tropics/subtropics

Weather, soil & spacing

Best temperature 18–28 °C
Rainfall 800–1200 mm/yr
Altitude 0–2000 m
Best pH 6–7
Soil type Well-drained loam
Row spacing 600 cm
Plant spacing 600 cm
Planting depth 60 cm
Seed rate kg/ha (check local recommendation)
Nursery days 270

Simple notes for farmers

About the crop: This crop is perennial, which means once you plant it, the same plant can keep producing for many years. You can normally start harvesting about 365+ days after planting, depending on care and variety.

Main use: Farmers mostly grow this crop for citrus fruit.

Pollination: This crop is mainly pollinated by insect. Keeping flowers healthy and having insects like bees in the field helps improve fruit set and yields.

Where it grows: SE Asia; tropics/subtropics It is grouped under: Fruits & Nuts.

Best climate: This crop does well in warm areas where the temperature is usually between 18 and 28 degrees Celsius. It prefers places that receive around 800 to 1200 millimetres of rain in a year. It can grow from near sea level up to about 2000 metres above sea level.

Soil: The crop grows best in slightly acidic to near neutral soils, with a pH of about 6 to 7. It does well in well-drained loam. Good drainage is important, so avoid waterlogged spots.

Plant spacing: Plant in rows about 600 centimetres apart, and leave about 600 centimetres between plants in the row. This gives each plant enough space for roots and canopy to spread.

Planting depth: Dig planting holes or furrows about 60 centimetres deep so the roots sit firmly in the soil but are not buried too deep.

Seed or planting material: Use good quality seed or healthy planting material. Follow local extension advice for the exact amount per hectare.

Nursery period: If you raise seedlings in a nursery, keep them there for about 270 days before transplanting to the main field, when they are strong and healthy.

Farmer guide (mwongozo wa mkulima)

Planting: Plant at onset of rains or irrigate; incorporate compost and starter P; stake and mulch young trees.
Transplanting: Protect from wind and sunscald; maintain weed-free basins.
Irrigation: Even moisture, especially bloom to fruit fill; avoid prolonged drought/ponding.
Fertigation: Split N into multiple light feeds; ensure K and Ca/Mg; adjust via leaf tests.
Pest scouting: Scout for citrus fruit flies, aphids, scales/mealybugs, psyllids (HLB risk), canker and Phytophthora.
Pruning: Form strong framework; remove suckers and crossing wood; open canopy for light and airflow.
Harvest: Harvest at full color and maturity index (°Brix/acid); clip to avoid rind tearing.
Postharvest: Shade-cool; handle gently; store 5–10 °C at high RH; avoid condensation and decay.

Nutrient schedule (mbolea kwa hatua)

# Stage DAP Product Rate Targets (kg/ha) Notes
1 Basal 0 NPK 15-15-15 180 kg/ha N: —, P₂O₅: 10, K₂O: — Mix in backfill; keep fertilizer off stem
2 Vegetative split N 90 CAN 26% N 150 g/tree N: 10, P₂O₅: —, K₂O: — Ring-apply under canopy; water in
3 Pre-bloom balanced 250 NPK 17-17-17 200 g/tree N: 10, P₂O₅: 10, K₂O: 10 Light dose before bloom
4 Fruit fill K boost 320 Sulfate of potash (SOP) 250 g/tree N: —, P₂O₅: —, K₂O: 20 Prefer SOP for fruit quality
5 Micronutrient foliar 300 Zn/Mn/B foliar (as label) 0 — N: —, P₂O₅: —, K₂O: — Apply during cool hours

Nutrient requirements

Nutrient Stage Amount Unit
N Basal 60 kg/ha
P₂O₅ Basal 40 kg/ha
K₂O Basal 80 kg/ha
N Establishment 20 kg/ha
P₂O₅ Establishment 20 kg/ha
K₂O Establishment 20 kg/ha
N Vegetative 50 kg/ha
K₂O Vegetative 40 kg/ha
N Flower_set 20 kg/ha
P₂O₅ Flower_set 20 kg/ha
K₂O Flower_set 40 kg/ha
N Fruit_fill 10 kg/ha
K₂O Fruit_fill 60 kg/ha
N Maintenance 40 kg/ha
P₂O₅ Maintenance 10 kg/ha
K₂O Maintenance 40 kg/ha

Field images (picha shambani)

Tangerine
Name Country Maturity Traits
Local Tangerine KE 720 Sweet; easy peel
Local mandarin selection KE 900 Good peelability; fresh market
Clementine-type selection TZ 900 High juice; sweet; small–medium fruit
Stage Product Rate (kg/ha) Notes
Basal Compost (well-decomposed) 4000 Mulch rings
Vegetative CAN 26% N 80 Split 2–3× on young trees
Fruit fill Sulfate of potash (SOP) 60 Quality improvement
Name Type Symptoms Management
Citrus psyllid pest Leaf curling; honeydew Monitoring; IPM; prune
Fruit flies (Tephritidae) pest Stings; larval tunnels; fruit drop Protein baiting; sanitation; fruit bagging; timely harvest
Citrus aphids pest Leaf curl; honeydew/sooty mold; virus risk Control ants; conserve predators; selective sprays if needed
Scales & mealybugs pest Sticky honeydew; sooty mold; twig decline Prune for airflow; oils/soft insecticides; biological control
Citrus psyllid (HLB vector) pest Shoot distortion; HLB risk Vector monitoring; rogue infected plants; IPM program
Citrus canker disease Corky lesions on leaves/fruit Sanitation; windbreaks; copper protectants
Phytophthora gummosis/root rot disease Gum exudation; collar rot; decline Good drainage; avoid trunk wetting; phosphonates if needed
Greasy spot/sooty blotch disease Leaf spots; premature drop Canopy opening; protectants in wet weather
System Typical Min Max Notes
orchard 15 8 25
smallholder rainfed 12 8 18 25–50 kg/tree common at maturity
irrigated/intensive 25 15 35 Good cultivars, pruning, nutrition
Country Region Planting Harvest
KE Coastal & mid-altitudes (long rains) Mar–Apr Jul–Nov
KE Coastal & mid-altitudes (short rains) Oct–Nov Feb–Jun
TZ Coastal belt Mar–Apr Aug–Dec
Country Region Suitability
KE Coastal & mid-altitudes High
KE Cool highlands (>1800 m) Low
KE Low to mid-altitudes High
TZ Coastal belt & isles High
UG Warm lowlands (lake shore) Medium