Effects of intercropping and plant density on growth, development and yield of pigeonpeas (cajanus cajan (l.) millsp.) and maize (zea mays l.). under semi- arid conditions of Kenya

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dc.contributor.authorRwamugira, Winifrida Kokuhirwa
dc.date.accessioned2026-05-26T16:57:10Z
dc.date.available2026-05-26T16:57:10Z
dc.date.issued1988
dc.descriptionMasters Theses
dc.description.abstractIn semi-arid areas of Kenya 95% and 70% of pigeonpeas and maize, respectively are intercropped This study was designed to determine the annually. effects of intercropping pigeonpeas and maize at variable plant densities and also to determine the appropriate intercropping ratio or combination for optimum economic yield. Two pigeonpea cultivars were intercropped with Katumani maize at three plant densities in Ka- bete, Thika and Kiboko during the 1986/87 cropping season. The experimental design was a split-split plot with three replications at each location. Re­ sults indicated that intercropping and plant density reduced leaf area and shoot dry weight of both pi- geonpeas and maize. Plant height of pigeonpeas was reduced by intercropping while that of maize was increased. In pigeonpeas number of mature pods and grain yield per plant were reduced by both inter­ cropping and high plant density. Reduction in 100 seed weight varied with location suggesting an en­ vironmental influence. For maize, number of cobs and grain yield per plant were also reduced by intercropping and high plant density. Generally, yield per hectare of a species in intercrop was lower than in monocrop, but total yield of intercrops (pigeonpea + maize) gave higher yield ad­ vantage over monocrops. Land equivalent ratio (LER) values indicated that all intercrop ratios were superior to monocropping. At all the experimental sites best in­ tercrop combination was attained when a row of pigeonpea alternated with a .row of maize. spacing, of 105 cm.
dc.description.sponsorshipInternational De­velopment Research Centre (IDRC)
dc.identifier.urihttps://www.suaire.sua.ac.tz/handle/20.500.14820/7622
dc.language.isoen
dc.publisherUniversity of Nairobi
dc.subjectIntercropping plant density
dc.subjectMaize pigeonpeas yield
dc.subjectCajanus cajan (l.) millsp
dc.subjectMaize (zea mays l.)
dc.subjectSemi- arid conditions
dc.subjectKenya
dc.titleEffects of intercropping and plant density on growth, development and yield of pigeonpeas (cajanus cajan (l.) millsp.) and maize (zea mays l.). under semi- arid conditions of Kenya
dc.typeThesis

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