Varieties of CITRUS- Sweet Oranges, Mandarins, Tangerines & Lemons:

Coorg mandarin, kinno mandarin, Coorg orange, sweet orange, Washington Navel and Valencia late.

    

Growth period and water requirement :

Stage of Growth
Parameter Initial Stage Crop Development Mid-Season Late Season Growth Period
Citrus - Evergreens Perennial Crop
Duration days 60 90 120 95 365 Days
ETm ( mm ) Use appropriate values of Kc and ETo 900-1200 mm/year
Kc 20% canopy 0.35 0.40 0.45 0.55 -
Kc 50% canopy 0.65 0.60 0.60 0.65 -
Kc 70% canopy 0.70 0.75 0.80 0.85 -


Drip System Recommendation from Premier range:

Crop Spacing
(m)
No. of plants/ha Lateral Spacing
(m)
Product Selection Premier Range Emitter Discharge
(1ph)
Emitters per Plant
8m x 8m 156 8.00 ONLINE- TABE 8lph/4lph 4
7m x 7m 204 7.00 ONLINE- TABE 8lph/4lph 4
6m x 6m 276 6.00 ONLINE- TABE 8lph/4lph 4
5m x 5m 400 5.00 ONLINE- TABE 8lph/4lph 4


Fertilizer Requirement :

AGE Fertilizer required gm/plant Fertilizer required kg/ha for 270 plant/ha
N P K N P K
1st 35 135 13 9.5 36 3.5
2nd 120 120 78 32.5 32.5 21.0
3rd 270 270 180 73 73 49
4th 400 250 400 108 67.5 108
5th 560 370 550 148.5 100.0 148.5
6th onward 550 370 550 148.5 100.0 148.5


Glossary

Kc = Crop co-efficient.
ETo = Reference evapo-transpiration (mm)
ETm = Maximum evapo-transpiration = Kc x ETo (mm)
ETa = Evapo-transpiration actual (mm)
Ya = Actual yield
Ym = Maximum yield


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Note: The advice and descriptions given herein are for general information only. Premier Irrigation cannot be held responsible for its use or application

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