Abstract:
Dual-purpose cowpea production is a common component of
many tropical and sub tropical subsistence farming systems.
However, limited information exists on effects of leaf harvesting
initiation time on yields and profitability of dual-purpose cowpea
based cropping systems. This study investigated the effects of
initiating cowpea leaf harvesting at different times on
performance of sole dual-purpose cowpea and dual-purpose
cowpea-maize intercrop. Initiating leaf harvesting at 3 and 4
weeks after cowpea emergence (WAE) resulted in highest leaf
and grain yields, respectively among leaf harvested cowpea.
Overall, cowpea grain yields were highest in control treatment.
Yields were lower in intercrop than in monocrop treatments.
Maize yields in intercrop treatments were improved following
harvesting of leaves of the companion cowpea. Initiating leaf
harvesting at 3 and 4 WAE yielded highest returns in cowpeamaize
intercrop and sole cowpea, respectively. Intercropping
was on overall more profitable than sole cropping.
La production du niébé à double usage est un élément commun
à de nombreux systèmes agricoles de subsistance sous
tropicales et tropicales. Cependant, peu d’informations existent
sur les effets du temps d’initiation des feuilles de récolte sur les
rendements et la rentabilité de niébé à double fin des systèmes
de culture. Cette étude a examiné les effets de l’ouverture de
la récolte des feuilles de niébé à différents moments sur le
rendement du niébé à double usage unique et à double usage
intercalaire du niébé-maïs. Le lancement de la récolte des
feuilles à 3 et 4 semaines après la levée du niébé (WAE) a
entraîné au plus haut des feuilles et des rendements des céréales,
le niébé, respectivement chez les feuilles récoltées. Dans
l’ensemble, les rendements en grains de niébé ont été plus élevés
en matière de contrôle du traitement. Les rendements ont été inférieurs en inter-culture que dans les traitements monoculture.
Les rendements du maïs en culture du traitement d’insertion
ont été améliorés après la récolte des feuilles de niébé . Le
lancement de la récolte des feuilles à 3 et 4 WAE a donné le
rendement le plus élevés en culture d’insertion du niébé-maïs et
de niébé, respectivement. La culture d’insertion a été sur
l’ensemble la plus rentable que la culture pure.
Language:
English
Date of publication:
2010
Country:
Region Focus:
East Africa
University/affiliation:
Collection:
RUFORUM Conferences and Workshops
Agris Subject Categories:
Agrovoc terms:
Additional keywords:
Licence conditions:
Open Access
Access restriction:
Form:
Printed resource
Publisher:
ISSN:
E_ISSN:
Edition:
Extent:
907-911
Notes:
"The 2010 RUFORUM Biennial Conference was the second in the series. The main objective of the Biennial conferences is to provide a platform for agricultural research for development stakeholders in Africa and beyond to actively exchange findings and experiences, while at the same time learning lessons towards improving performance of the agricultural sector and ultimately people’s livelihoods. The biennial conference is RUFORUM’s most comprehensive meeting for the diversity of stakeholers in agriculture. It is especially dedicated to graduate students and their supervisors, grantees in RUFORUM member universities and alumni. It is a platform for peer review, quality control, mentorship, networking and shared learning. This record contains an extended abstract accepted under the theme agronomy".
