Varieties of Coconut:

1. Tall varieties: West Coast tall, Tiptur (Arsikere) tall.
2. Dwarf varieties: Ganga dondam , Laccadive dwarf, chowghat dwarf orange, Malayan dwarf orange.
3. Hybrid varieties: Tall x Dwarf( T x D ), Dwarf x Tall ( D x T ), Natural Cross Dwarf ( NCD )

Growth period and water requirement :

Stage of Growth
Parameter	Initial Stage	Crop Development	Mid-Season	Late Season	Growth Period
Coconut					Perennial Crop
Duration days	60	90	120	95	365 days
ETm	Use appropriate values of Kc and ETo				750-1000 mm/year
Kc 20% canopy	0.50	0.45	0.45	0.55	-
Kc 50% canopy	0.65	0.60	0.60	0.65	-
Kc 70% canopy	0.70	0.65	0.70	0.75	-

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
9m x 9m	123	9.00	ONLINE- TABE	8lph/4lph	4
8m x 8m	156	8.00	ONLINE- TABE	8lph/4lph	4
7.5m x 7.5m	178	7.50	ONLINE- TABE	8lph/4lph	4

Fertilizer Requirement:

FYM -

1. Before planting - 12.5 ton/ha
2. Every year - 50 kg/palm/yea
3. Green leaves - 50 kg/palm/year

Year	Pre Monsoon			Post Monsoon
	Fertilizer required in gm/ palm			Fertilizer required in gm/ palm
	N	P	K	N	P	K
1st Year	Planting in May-June			50	40	135
2nd Year	50	43	135	110	80	270
3rd Year	110	80	270	220	160	540
4th Year Onward	170	120	400	330	200	800
Lime	-	-	-	2 kg till 15 years
( coastal areas )	-	-	-	4 Kg after 15 years

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