IJAER

International Journal of Agriculture and Environmental Research™

ISSN 2455-6939

Title:
EFFECTS OF INTERCROPPING ARRANGEMENTS AND FERTILIZER APPLICATION ON GROWTH AND YIELD OF AFRICAN NIGHTSHADE (Solanum nigrum L.) IN KISII COUNTY, KENYA

Authors:
Erick Nyagari , Cecilia Moraa Onyango and Richard Ndemo Onwong'a

Abstract:
This study investigated the effects of intercropping arrangements and fertilizer combinations on growth and yields of African nightshade (ANS) (Solanum nigrum L.). The study was carried out at the KALRO research station, Kisii County. The experiments were laid in a complete randomized block design with a split plot arrangement replicated thrice. The main plots were intercropping arrangements (0:16, 1:14, 1:2, 1:3, 1:4 (Spider plant: ANS). The sub plots were fertilizer combinations of Farm yard manure (FYM), urea (NPK: 46-0-0) and triple super phosphate (TSP) (NPK: 0-46-0). Data was collected on number of branches, leaves and fresh leaf yield. The results indicated that an application of urea (60kg N ha-1 ) + TSP (40kg P ha-1 ) resulted in the highest number of branches (10) and leaves (32) per plant while the sole application of FYM (60kg N ha-1+ 36 kg P ha-1 ) resulted in the lowest number of branches (6) and leaves (21) per plant. Further, ANS grown as a pure stand supplied with Urea (60kg N ha-1 ) + TSP (40Kg P ha-1 ) resulted in the highest leaf yield (35.1 tons ha-1 ) that was not different from 32.5 tons ha-1 obtained when the sole ANS was supplied with urea (40 kg N ha-1 ) + TSP (30 kg P ha-1 ) + FYM (20 kg N ha-1+ 9 kg P ha-1 ). To boost ANS production, farmers should grow it as a pure stand supplied with urea (60kg N ha-1 ) + TSP (40kg P ha-1 ) or urea (40 kg N ha-1 ) + TSP (30 kg P ha-1 ) + FYM (20 kg N ha-1+ 9 kg P ha-1 ).

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