Journal of Food, Agriculture and Environment

Vol 3, Issue 1,2005
Online ISSN: 1459-0263
Print ISSN: 1459-0255

Paprika (Capsicum annuum L.) field establishment and crop productivity under varying planting density and ammonium nitrate topdressing


Vincent B. Ogunlela 1*, Irene Koomen 2

Recieved Date: 2004-08-18, Accepted Date: 2004-11-11


Field trials were conducted in Harare, Zimbabwe during the 2000/2001 and 2001/2002 cropping seasons to study the response of paprika (Capsicum annuum L.) field establishment and productivity to planting density and ammonium nitrate (AN) topdressing. Treatments were factorial combinations of two stand densities (one plant stand¹ and 2 plants stand¹), three plant densities (3, 5 and 7 plants m²) and three AN topdressing schedules (single dose, 2-split and 3-split application of AN 300 kg ha¹). Stand density of 2 plants stand¹ gave better field establishment than one plant stand¹. Stand and plant counts, both of which were favoured by split application of AN, increased progressively as plant density increased from 3 to 7 plants m². Fruits plant¹ declined by 18% and 16-21% with increase in stand density and plant densities respectively. Fruit count per plot was significantly higher by 37% at higher stand and by 25% at the lowest plant density. Total and marketable yields increased significantly with increase in plant density up to 7 plants m² in 2000 but up to 5 plants m² in 2001. Paprika yields were higher at 2 plants stand¹ as well. Crop establishment was significantly lower with the single dose AN topdressing under the lower plant densities. Fruit count per plant was lowest for the higher plant densities. Dryland production of paprika in the smallholder farming sector using 2 plants stand¹ and a planting density of 50-70 thousand plants ha¹ is suggested. Topdressing of AN 300 kg ha² in 3-plit applications is effective for paprika.


Paprika, Capsicum annuum L., crop productivity, field establishment, planting density, topdressing, ammonium nitrate

Journal: Journal of Food, Agriculture and Environment
Year: 2005
Volume: 3
Issue: 1
Category: Agriculture
Pages: 185-189

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