Do intercropping and mineral nitrogen fertilizer affect weed community structures in low-input maize-based cropping systems?
Weeds are a major threat to crop growth in sub-Saharan Africa (SSA), particularly in low-input cropping systems. We investigated the effect of different cropping systems and nitrogen fertilizer on weed infestation during the 2017/18 and 2018/19 cropping seasons in Goromonzi district, Zimbabwe. The objectives of this study were to (1) determine if and how weed composition and structure are affected by intercropping maize with either an improved or landrace cowpea variety compared to sole crops of maize and of improved or landrace cowpea; (2) if and how weed composition and structure are affected by nitrogen fertilization; and (3) how the subsequent changes in weed infestation affect grain yield. Weed parameters were measured at different dates during the cropping cycle, and grain yield was measured at harvest. Significant differences were observed for the density of the 21 weed species collected in two seasons; seven of these weed species had a relative density exceeding 5%. Significantly more weeds were recorded in sole maize compared to sole cowpea. Intercropping significantly reduced the density of C. benghalensis. In sole crops, application of mineral nitrogen fertilizer significantly affected weed density, diversity, richness, and groundcover. Maize grain yield was independent of weed biomass and density, in both sole crops and intercrops. However, increase in weed biomass significantly reduced cowpea yield. Our results suggest that growing sole cowpea reduces weed infestation, therefore, cowpea should be considered as one of the options for effective weed control in subsistence farming communities, where access to herbicides is lacking.
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dig-cirad-fr-6069752024-04-08T14:06:01Z http://agritrop.cirad.fr/606975/ http://agritrop.cirad.fr/606975/ Do intercropping and mineral nitrogen fertilizer affect weed community structures in low-input maize-based cropping systems? Namatsheve Talent, Cardinael Rémi, Chikowo Régis, Corbeels Marc, Tatenda Rugare Joyful, Mabasa Stanford, Ripoche Aude. 2024. Crop Protection, 176:106486, 11 p.https://doi.org/10.1016/j.cropro.2023.106486 <https://doi.org/10.1016/j.cropro.2023.106486> Do intercropping and mineral nitrogen fertilizer affect weed community structures in low-input maize-based cropping systems? Namatsheve, Talent Cardinael, Rémi Chikowo, Régis Corbeels, Marc Tatenda Rugare, Joyful Mabasa, Stanford Ripoche, Aude eng 2024 Crop Protection F08 - Systèmes et modes de culture H60 - Mauvaises herbes et désherbage F04 - Fertilisation mauvaise herbe culture intercalaire engrais azoté désherbage fertilisation système de culture rendement des cultures engrais minéral herbicide Zea mays Vigna unguiculata http://aims.fao.org/aos/agrovoc/c_8347 http://aims.fao.org/aos/agrovoc/c_3910 http://aims.fao.org/aos/agrovoc/c_5195 http://aims.fao.org/aos/agrovoc/c_8345 http://aims.fao.org/aos/agrovoc/c_10795 http://aims.fao.org/aos/agrovoc/c_1971 http://aims.fao.org/aos/agrovoc/c_10176 http://aims.fao.org/aos/agrovoc/c_27870 http://aims.fao.org/aos/agrovoc/c_3566 http://aims.fao.org/aos/agrovoc/c_8504 http://aims.fao.org/aos/agrovoc/c_8247 Zimbabwe http://aims.fao.org/aos/agrovoc/c_8516 Weeds are a major threat to crop growth in sub-Saharan Africa (SSA), particularly in low-input cropping systems. We investigated the effect of different cropping systems and nitrogen fertilizer on weed infestation during the 2017/18 and 2018/19 cropping seasons in Goromonzi district, Zimbabwe. The objectives of this study were to (1) determine if and how weed composition and structure are affected by intercropping maize with either an improved or landrace cowpea variety compared to sole crops of maize and of improved or landrace cowpea; (2) if and how weed composition and structure are affected by nitrogen fertilization; and (3) how the subsequent changes in weed infestation affect grain yield. Weed parameters were measured at different dates during the cropping cycle, and grain yield was measured at harvest. Significant differences were observed for the density of the 21 weed species collected in two seasons; seven of these weed species had a relative density exceeding 5%. Significantly more weeds were recorded in sole maize compared to sole cowpea. Intercropping significantly reduced the density of C. benghalensis. In sole crops, application of mineral nitrogen fertilizer significantly affected weed density, diversity, richness, and groundcover. Maize grain yield was independent of weed biomass and density, in both sole crops and intercrops. However, increase in weed biomass significantly reduced cowpea yield. Our results suggest that growing sole cowpea reduces weed infestation, therefore, cowpea should be considered as one of the options for effective weed control in subsistence farming communities, where access to herbicides is lacking. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/606975/1/Namatsheve2024%20Do%20intercropping%20and%20mineral%20nitrogen.pdf text Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1016/j.cropro.2023.106486 10.1016/j.cropro.2023.106486 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.cropro.2023.106486 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1016/j.cropro.2023.106486 info:eu-repo/grantAgreement/////(FRA) Soil2Crop/ |
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F08 - Systèmes et modes de culture H60 - Mauvaises herbes et désherbage F04 - Fertilisation mauvaise herbe culture intercalaire engrais azoté désherbage fertilisation système de culture rendement des cultures engrais minéral herbicide Zea mays Vigna unguiculata http://aims.fao.org/aos/agrovoc/c_8347 http://aims.fao.org/aos/agrovoc/c_3910 http://aims.fao.org/aos/agrovoc/c_5195 http://aims.fao.org/aos/agrovoc/c_8345 http://aims.fao.org/aos/agrovoc/c_10795 http://aims.fao.org/aos/agrovoc/c_1971 http://aims.fao.org/aos/agrovoc/c_10176 http://aims.fao.org/aos/agrovoc/c_27870 http://aims.fao.org/aos/agrovoc/c_3566 http://aims.fao.org/aos/agrovoc/c_8504 http://aims.fao.org/aos/agrovoc/c_8247 http://aims.fao.org/aos/agrovoc/c_8516 F08 - Systèmes et modes de culture H60 - Mauvaises herbes et désherbage F04 - Fertilisation mauvaise herbe culture intercalaire engrais azoté désherbage fertilisation système de culture rendement des cultures engrais minéral herbicide Zea mays Vigna unguiculata http://aims.fao.org/aos/agrovoc/c_8347 http://aims.fao.org/aos/agrovoc/c_3910 http://aims.fao.org/aos/agrovoc/c_5195 http://aims.fao.org/aos/agrovoc/c_8345 http://aims.fao.org/aos/agrovoc/c_10795 http://aims.fao.org/aos/agrovoc/c_1971 http://aims.fao.org/aos/agrovoc/c_10176 http://aims.fao.org/aos/agrovoc/c_27870 http://aims.fao.org/aos/agrovoc/c_3566 http://aims.fao.org/aos/agrovoc/c_8504 http://aims.fao.org/aos/agrovoc/c_8247 http://aims.fao.org/aos/agrovoc/c_8516 |
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F08 - Systèmes et modes de culture H60 - Mauvaises herbes et désherbage F04 - Fertilisation mauvaise herbe culture intercalaire engrais azoté désherbage fertilisation système de culture rendement des cultures engrais minéral herbicide Zea mays Vigna unguiculata http://aims.fao.org/aos/agrovoc/c_8347 http://aims.fao.org/aos/agrovoc/c_3910 http://aims.fao.org/aos/agrovoc/c_5195 http://aims.fao.org/aos/agrovoc/c_8345 http://aims.fao.org/aos/agrovoc/c_10795 http://aims.fao.org/aos/agrovoc/c_1971 http://aims.fao.org/aos/agrovoc/c_10176 http://aims.fao.org/aos/agrovoc/c_27870 http://aims.fao.org/aos/agrovoc/c_3566 http://aims.fao.org/aos/agrovoc/c_8504 http://aims.fao.org/aos/agrovoc/c_8247 http://aims.fao.org/aos/agrovoc/c_8516 F08 - Systèmes et modes de culture H60 - Mauvaises herbes et désherbage F04 - Fertilisation mauvaise herbe culture intercalaire engrais azoté désherbage fertilisation système de culture rendement des cultures engrais minéral herbicide Zea mays Vigna unguiculata http://aims.fao.org/aos/agrovoc/c_8347 http://aims.fao.org/aos/agrovoc/c_3910 http://aims.fao.org/aos/agrovoc/c_5195 http://aims.fao.org/aos/agrovoc/c_8345 http://aims.fao.org/aos/agrovoc/c_10795 http://aims.fao.org/aos/agrovoc/c_1971 http://aims.fao.org/aos/agrovoc/c_10176 http://aims.fao.org/aos/agrovoc/c_27870 http://aims.fao.org/aos/agrovoc/c_3566 http://aims.fao.org/aos/agrovoc/c_8504 http://aims.fao.org/aos/agrovoc/c_8247 http://aims.fao.org/aos/agrovoc/c_8516 Namatsheve, Talent Cardinael, Rémi Chikowo, Régis Corbeels, Marc Tatenda Rugare, Joyful Mabasa, Stanford Ripoche, Aude Do intercropping and mineral nitrogen fertilizer affect weed community structures in low-input maize-based cropping systems? |
description |
Weeds are a major threat to crop growth in sub-Saharan Africa (SSA), particularly in low-input cropping systems. We investigated the effect of different cropping systems and nitrogen fertilizer on weed infestation during the 2017/18 and 2018/19 cropping seasons in Goromonzi district, Zimbabwe. The objectives of this study were to (1) determine if and how weed composition and structure are affected by intercropping maize with either an improved or landrace cowpea variety compared to sole crops of maize and of improved or landrace cowpea; (2) if and how weed composition and structure are affected by nitrogen fertilization; and (3) how the subsequent changes in weed infestation affect grain yield. Weed parameters were measured at different dates during the cropping cycle, and grain yield was measured at harvest. Significant differences were observed for the density of the 21 weed species collected in two seasons; seven of these weed species had a relative density exceeding 5%. Significantly more weeds were recorded in sole maize compared to sole cowpea. Intercropping significantly reduced the density of C. benghalensis. In sole crops, application of mineral nitrogen fertilizer significantly affected weed density, diversity, richness, and groundcover. Maize grain yield was independent of weed biomass and density, in both sole crops and intercrops. However, increase in weed biomass significantly reduced cowpea yield. Our results suggest that growing sole cowpea reduces weed infestation, therefore, cowpea should be considered as one of the options for effective weed control in subsistence farming communities, where access to herbicides is lacking. |
format |
article |
topic_facet |
F08 - Systèmes et modes de culture H60 - Mauvaises herbes et désherbage F04 - Fertilisation mauvaise herbe culture intercalaire engrais azoté désherbage fertilisation système de culture rendement des cultures engrais minéral herbicide Zea mays Vigna unguiculata http://aims.fao.org/aos/agrovoc/c_8347 http://aims.fao.org/aos/agrovoc/c_3910 http://aims.fao.org/aos/agrovoc/c_5195 http://aims.fao.org/aos/agrovoc/c_8345 http://aims.fao.org/aos/agrovoc/c_10795 http://aims.fao.org/aos/agrovoc/c_1971 http://aims.fao.org/aos/agrovoc/c_10176 http://aims.fao.org/aos/agrovoc/c_27870 http://aims.fao.org/aos/agrovoc/c_3566 http://aims.fao.org/aos/agrovoc/c_8504 http://aims.fao.org/aos/agrovoc/c_8247 http://aims.fao.org/aos/agrovoc/c_8516 |
author |
Namatsheve, Talent Cardinael, Rémi Chikowo, Régis Corbeels, Marc Tatenda Rugare, Joyful Mabasa, Stanford Ripoche, Aude |
author_facet |
Namatsheve, Talent Cardinael, Rémi Chikowo, Régis Corbeels, Marc Tatenda Rugare, Joyful Mabasa, Stanford Ripoche, Aude |
author_sort |
Namatsheve, Talent |
title |
Do intercropping and mineral nitrogen fertilizer affect weed community structures in low-input maize-based cropping systems? |
title_short |
Do intercropping and mineral nitrogen fertilizer affect weed community structures in low-input maize-based cropping systems? |
title_full |
Do intercropping and mineral nitrogen fertilizer affect weed community structures in low-input maize-based cropping systems? |
title_fullStr |
Do intercropping and mineral nitrogen fertilizer affect weed community structures in low-input maize-based cropping systems? |
title_full_unstemmed |
Do intercropping and mineral nitrogen fertilizer affect weed community structures in low-input maize-based cropping systems? |
title_sort |
do intercropping and mineral nitrogen fertilizer affect weed community structures in low-input maize-based cropping systems? |
url |
http://agritrop.cirad.fr/606975/ http://agritrop.cirad.fr/606975/1/Namatsheve2024%20Do%20intercropping%20and%20mineral%20nitrogen.pdf |
work_keys_str_mv |
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_version_ |
1798165124873191424 |