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Increasing potato equivalent yield increases returns to investment under potato-legume intercropping systems

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Title Increasing potato equivalent yield increases returns to investment under potato-legume intercropping systems
 
Creator Gitari, H.I.
Nyawade, S.
Kamau, S.
Gachene, C.K.K.
Karanja, N.
Schulte-Geldermann, Elmar
 
Subject profitability
benefit-cost ratio
potatoes
legumes
intercropping
 
Description In order to enhance sustainable intensification of potato-based cropping systems, especially in sub-Saharan Africa (SSA), there is a need to investigate the economic viability of investing in this lucrative venture. This study evaluated the economic returns under legume intercropping systems using value/cost ratio (VCR) and benefit/cost ratio (BCR) under treatments comprising of potato intercropped with dolichos (Lablab purpureus L.) (P-D), climbing bean (Phaseolus vulgaris L.) (P-B) and garden pea (Pisum sativum L.) (P-G), and a potato pure stand control (P-S). Across the seasons, tuber yield was not significantly (p < 0.05) affected by intercropping with P-D, whereas under P-B and P-G, it decreased by 19% and 16%, respectively compared to P-S. P-G, P-B and P-D recorded 6, 7 and 12% higher potato equivalent yield (PEY) relative to P-S. P-D was the most profitable intercropping system with VCR of 35 and BCR of 5.1 as compared to values recorded in P-S of 31 and 5, respectively. Regression of VCR against PEY resulted in a stronger coefficient (0.98) compared to that of BCR against PEY (0.82) implying that VCR is a simple tool that could be adopted for economic returns to investment studies such as potato-legume intercropping systems.
 
Date 2019-01-01
2019-11-27T03:45:57Z
2019-11-27T03:45:57Z
 
Type Journal Article
 
Identifier Gitari, H.I.; Nyawade, S.O; Kamau, S.; Gachene, C.K.K.; Karanja, N.N.; Schulte-Geldermann, E. 2019. Increasing potato equivalent yield increases returns to investment under potato-legume intercropping systems. Open Agriculture. ISSN: 2391-9531. 4(1). pp. 623-629.
2391-9531
https://hdl.handle.net/10568/105911
https://doi.org/10.1515/opag-2019-0062
 
Language en
 
Rights CC-BY-4.0
Open Access
 
Format p. 623-629
 
Publisher Walter de Gruyter GmbH
 
Source Open Agriculture