| dc.contributor.author | Mwangi, H.W. |
| dc.contributor.author | Kihurani, A.W. |
| dc.contributor.author | Wesonga, J.M. |
| dc.contributor.author | Ariga, E.S. |
| dc.contributor.author | Kanampiu, F. |
| dc.date.accessioned | 2019-12-04T10:58:04Z |
| dc.date.available | 2019-12-04T10:58:04Z |
| dc.date.issued | 2015 |
| dc.identifier.citation | Mwangi, H.W., Kihurani, A.W., Wesonga, J.M., Ariga, E.S. & Kanampiu, F. (2015). Effect of Lablab purpureus L. cover crop and imidazolinone resistant (IR) maize on weeds in drought prone areas, Kenya. Crop Protection, 72, 36-40. |
| dc.identifier.issn | 0261-2194 |
| dc.identifier.uri | https://hdl.handle.net/20.500.12478/906 |
| dc.description.abstract | Weeds compete for nutrients and soil moisture resulting to low maize yields in dry lands. A three year
field study was initiated in 2009 at Kenya Agricultural and Livestock Research Organization, Kiboko to
evaluate the effect of dolichos bean (Lablab purpureus L.) and open pollinated imazapyr herbicide coated
imidazolinone-resistant (IR)1 maize on weed species composition, density, and maize yield. Initially,
weed species were identified, and then controlled using glyphosate at 1.6 kg ai ha 1. Twenty four plots
were marked, each measuring 4 5 m. Six treatments 1) IR-maize coated, 2) IR-maize coated þ brown
dolichos, 3) IR-maize coated þ black dolichos 4) IR-maize uncoated, 5) IR-maize uncoated þ brown
dolichos, 6) IR-maize uncoated þ black dolichos were laid out in a randomized complete block design
replicated four times. IR-maize was planted at a spacing of 90 45 cm and 2 seeds per hole. Weeds were
sampled from a one meter squared quadrat 21 and 42 days after planting (DAP). The data was subjected
to analysis of variance using Genstat version 12.0. Eighteen (18) weed species were prevalent before the
experiment. Interaction of dolichos and herbicide coated IR-maize had no significant (P > 0.05) effect on
weed species composition and density. Dolichos significantly (P < 0.05) reduced the density of Portulaca
quadrifida L. and Paraknoxia parviflora L., and increased Eleusine indica L. Weed species composition
decreased by 14% (21 DAP) and 33% (42 DAP) in plots with dolichos compared to no cover. Maize yields
were significantly (P < 0.05) higher in plots with dolichos than without. From the findings, this study
recommends dolichos integration with coated IR-for weed management and increased maize yields in
drylands.Weeds compete for nutrients and soil moisture resulting to low maize yields in dry lands. A three year
field study was initiated in 2009 at Kenya Agricultural and Livestock Research Organization, Kiboko to
evaluate the effect of dolichos bean (Lablab purpureus L.) and open pollinated imazapyr herbicide coated
imidazolinone-resistant (IR)1 maize on weed species composition, density, and maize yield. Initially,
weed species were identified, and then controlled using glyphosate at 1.6 kg ai ha 1. Twenty four plots
were marked, each measuring 4 5 m. Six treatments 1) IR-maize coated, 2) IR-maize coated þ brown
dolichos, 3) IR-maize coated þ black dolichos 4) IR-maize uncoated, 5) IR-maize uncoated þ brown
dolichos, 6) IR-maize uncoated þ black dolichos were laid out in a randomized complete block design
replicated four times. IR-maize was planted at a spacing of 90 45 cm and 2 seeds per hole. Weeds were
sampled from a one meter squared quadrat 21 and 42 days after planting (DAP). The data was subjected
to analysis of variance using Genstat version 12.0. Eighteen (18) weed species were prevalent before the
experiment. Interaction of dolichos and herbicide coated IR-maize had no significant (P > 0.05) effect on
weed species composition and density. Dolichos significantly (P < 0.05) reduced the density of Portulaca
quadrifida L. and Paraknoxia parviflora L., and increased Eleusine indica L. Weed species composition
decreased by 14% (21 DAP) and 33% (42 DAP) in plots with dolichos compared to no cover. Maize yields
were significantly (P < 0.05) higher in plots with dolichos than without. From the findings, this study
recommends dolichos integration with coated IR-for weed management and increased maize yields in
drylands.Weeds compete for nutrients and soil moisture resulting to low maize yields in dry lands. A three year
field study was initiated in 2009 at Kenya Agricultural and Livestock Research Organization, Kiboko to
evaluate the effect of dolichos bean (Lablab purpureus L.) and open pollinated imazapyr herbicide coated
imidazolinone-resistant (IR)1 maize on weed species composition, density, and maize yield. Initially,
weed species were identified, and then controlled using glyphosate at 1.6 kg ai ha 1. Twenty four plots
were marked, each measuring 4 5 m. Six treatments 1) IR-maize coated, 2) IR-maize coated þ brown
dolichos, 3) IR-maize coated þ black dolichos 4) IR-maize uncoated, 5) IR-maize uncoated þ brown
dolichos, 6) IR-maize uncoated þ black dolichos were laid out in a randomized complete block design
replicated four times. IR-maize was planted at a spacing of 90 45 cm and 2 seeds per hole. Weeds were
sampled from a one meter squared quadrat 21 and 42 days after planting (DAP). The data was subjected
to analysis of variance using Genstat version 12.0. Eighteen (18) weed species were prevalent before the
experiment. Interaction of dolichos and herbicide coated IR-maize had no significant (P > 0.05) effect on
weed species composition and density. Dolichos significantly (P < 0.05) reduced the density of Portulaca
quadrifida L. and Paraknoxia parviflora L., and increased Eleusine indica L. Weed species composition
decreased by 14% (21 DAP) and 33% (42 DAP) in plots with dolichos compared to no cover. Maize yields
were significantly (P < 0.05) higher in plots with dolichos than without. From the findings, this study
recommends dolichos integration with coated IR-for weed management and increased maize yields in
drylands. |
| dc.language.iso | en |
| dc.subject | Maize |
| dc.subject | Weeds |
| dc.subject | Cover Crops |
| dc.title | Effect of Lablab purpureus L. cover crop and imidazolinone resistant (IR) maize on weeds in drought prone areas, Kenya |
| dc.type | Journal Article |
| dc.description.version | Peer Review |
| cg.contributor.crp | Maize |
| cg.contributor.affiliation | Kenya Agricultural Research Institute |
| cg.contributor.affiliation | University of Agriculture Science and Technology, Kenya |
| cg.contributor.affiliation | University of Nairobi |
| cg.contributor.affiliation | International Institute of Tropical Agriculture |
| cg.coverage.region | Africa |
| cg.coverage.region | East Africa |
| cg.coverage.region | Central Africa |
| cg.coverage.country | Kenya |
| cg.isijournal | ISI Journal |
| cg.authorship.types | CGIAR and developing country institute |
| cg.iitasubject | Maize |
| cg.iitasubject | Weeds |
| cg.journal | Crop Protection |
| cg.howpublished | Formally Published |
| cg.accessibilitystatus | Limited Access |
| local.dspaceid | 76405 |
| cg.identifier.doi | https://dx.doi.org/10.1016/j.cropro.2015.02.013 |
