Improved soil fertility and weed management is profitable for irrigated rice farmers in Sahelian West Africa
Gains in yield and profitability of irrigated rice ( Oryza sativa L.) in the Senegal river region resulting from improved fertilizer and weed management practices were studied in collaboration with farmers’ organizations, national research institutes and farmers. The profitability of different ferti...
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| Veröffentlicht in: | Field crops research 2000-05, Vol.66 (2), p.101-113 |
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| creator | Haefele, S.M Johnson, D.E Diallo, S Wopereis, M.C.S Janin, I |
| description | Gains in yield and profitability of irrigated rice (
Oryza sativa L.) in the Senegal river region resulting from improved fertilizer and weed management practices were studied in collaboration with farmers’ organizations, national research institutes and farmers. The profitability of different fertilizer and weed management treatments was compared to farmers’ practice using partial budgeting techniques and the net benefit of all treatments was estimated. Improved fertilizer management increased grain yield by 0.9
t
ha
−1, while the recommended weed management resulted in a yield increase of 1.0
t
ha
−1. The effect of recommended management practices was additive and gave a mean yield increase of 1.8
t
ha
−1 compared to farmers’ practices. Principal weed species in rice were
Echinochloa colona (L.) Link,
Diplachne fusca (L.) P. Beauv. ex Stapf,
Sphenoclea zeylanica Gaertner,
Bolboschoenus maritimus L.,
Schoenoplectus senegalensis (Steudel) Raynal,
Cyperus iria L. and
Cyperus difformis L. Indications of propanil-resistant
E. colona were found. Weed infestation was severe and weed biomass comprised between 24 and 49% of the combined biomass of weeds and rice at panicle initiation. Average losses in rice yield caused by weeds were 0.56
t
ha
−1 per 10% of relative weed biomass. The value/cost ratios were between 2.1 and 4.6 for the improved treatments, and improved soil fertility and weed management resulted in an increase in net revenues of 40–85% compared to farmers’ practice. |
| doi_str_mv | 10.1016/S0378-4290(00)00066-6 |
| format | Article |
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Oryza sativa L.) in the Senegal river region resulting from improved fertilizer and weed management practices were studied in collaboration with farmers’ organizations, national research institutes and farmers. The profitability of different fertilizer and weed management treatments was compared to farmers’ practice using partial budgeting techniques and the net benefit of all treatments was estimated. Improved fertilizer management increased grain yield by 0.9
t
ha
−1, while the recommended weed management resulted in a yield increase of 1.0
t
ha
−1. The effect of recommended management practices was additive and gave a mean yield increase of 1.8
t
ha
−1 compared to farmers’ practices. Principal weed species in rice were
Echinochloa colona (L.) Link,
Diplachne fusca (L.) P. Beauv. ex Stapf,
Sphenoclea zeylanica Gaertner,
Bolboschoenus maritimus L.,
Schoenoplectus senegalensis (Steudel) Raynal,
Cyperus iria L. and
Cyperus difformis L. Indications of propanil-resistant
E. colona were found. Weed infestation was severe and weed biomass comprised between 24 and 49% of the combined biomass of weeds and rice at panicle initiation. Average losses in rice yield caused by weeds were 0.56
t
ha
−1 per 10% of relative weed biomass. The value/cost ratios were between 2.1 and 4.6 for the improved treatments, and improved soil fertility and weed management resulted in an increase in net revenues of 40–85% compared to farmers’ practice.</description><identifier>ISSN: 0378-4290</identifier><identifier>EISSN: 1872-6852</identifier><identifier>DOI: 10.1016/S0378-4290(00)00066-6</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>application rate ; application timing ; biomass ; crop management ; crop yield ; economic analysis ; Economic evaluation ; farmers ; infestation ; Irrigation ; nitrogen fertilizers ; Oryza sativa ; profitability ; Rice ; Sahel ; soil fertility ; Soil fertility management ; weed control ; Weed management ; weeds</subject><ispartof>Field crops research, 2000-05, Vol.66 (2), p.101-113</ispartof><rights>2000 Elsevier Science B.V.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c362t-2e2bbed1e9271695231be8882b605c01288ba3a254543533c71a859da48723573</citedby><cites>FETCH-LOGICAL-c362t-2e2bbed1e9271695231be8882b605c01288ba3a254543533c71a859da48723573</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/S0378-4290(00)00066-6$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids></links><search><creatorcontrib>Haefele, S.M</creatorcontrib><creatorcontrib>Johnson, D.E</creatorcontrib><creatorcontrib>Diallo, S</creatorcontrib><creatorcontrib>Wopereis, M.C.S</creatorcontrib><creatorcontrib>Janin, I</creatorcontrib><title>Improved soil fertility and weed management is profitable for irrigated rice farmers in Sahelian West Africa</title><title>Field crops research</title><description>Gains in yield and profitability of irrigated rice (
Oryza sativa L.) in the Senegal river region resulting from improved fertilizer and weed management practices were studied in collaboration with farmers’ organizations, national research institutes and farmers. The profitability of different fertilizer and weed management treatments was compared to farmers’ practice using partial budgeting techniques and the net benefit of all treatments was estimated. Improved fertilizer management increased grain yield by 0.9
t
ha
−1, while the recommended weed management resulted in a yield increase of 1.0
t
ha
−1. The effect of recommended management practices was additive and gave a mean yield increase of 1.8
t
ha
−1 compared to farmers’ practices. Principal weed species in rice were
Echinochloa colona (L.) Link,
Diplachne fusca (L.) P. Beauv. ex Stapf,
Sphenoclea zeylanica Gaertner,
Bolboschoenus maritimus L.,
Schoenoplectus senegalensis (Steudel) Raynal,
Cyperus iria L. and
Cyperus difformis L. Indications of propanil-resistant
E. colona were found. Weed infestation was severe and weed biomass comprised between 24 and 49% of the combined biomass of weeds and rice at panicle initiation. Average losses in rice yield caused by weeds were 0.56
t
ha
−1 per 10% of relative weed biomass. The value/cost ratios were between 2.1 and 4.6 for the improved treatments, and improved soil fertility and weed management resulted in an increase in net revenues of 40–85% compared to farmers’ practice.</description><subject>application rate</subject><subject>application timing</subject><subject>biomass</subject><subject>crop management</subject><subject>crop yield</subject><subject>economic analysis</subject><subject>Economic evaluation</subject><subject>farmers</subject><subject>infestation</subject><subject>Irrigation</subject><subject>nitrogen fertilizers</subject><subject>Oryza sativa</subject><subject>profitability</subject><subject>Rice</subject><subject>Sahel</subject><subject>soil fertility</subject><subject>Soil fertility management</subject><subject>weed control</subject><subject>Weed management</subject><subject>weeds</subject><issn>0378-4290</issn><issn>1872-6852</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2000</creationdate><recordtype>article</recordtype><recordid>eNqFkE1rHDEMhk1pINukPyHUp9AeppXtscdzKiH0IxDoYRN6NBqPZqsyH4k9Sci_rzdbei0IBNIjvdIrxJmCjwqU-7QF0_iq1i28B_gAAM5V7pXYKN_oynmrX4vNP-RYvMn59wuk3EaMV9NdWh6pl3nhUQ6UVh55fZY49_KJSn3CGXc00bxKzrLAA6_YjSSHJUlOiXe4FixxLCVME6UseZZb_EUj4yx_Ul7lxVD6eCqOBhwzvf2bT8Tt1y83l9-r6x_fri4vrqtonF4rTbrrqFfU6ka51mqjOvLe686BjaC09x0a1La2tbHGxEaht22PdXnY2MaciPPD3nLt_UPRDxPnSOOIMy0POajaWvBmD9oDGNOSc6Ih3CWeMD0HBWHvbXjxNuyNC7CPYltwZe7dYW7AJeAucQ63Ww3KgG5t7WooxOcDQeXPR6YUcmSaI_WcKK6hX_g_Gn8A-4OJ0Q</recordid><startdate>20000501</startdate><enddate>20000501</enddate><creator>Haefele, S.M</creator><creator>Johnson, D.E</creator><creator>Diallo, S</creator><creator>Wopereis, M.C.S</creator><creator>Janin, I</creator><general>Elsevier B.V</general><scope>FBQ</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7ST</scope><scope>C1K</scope><scope>SOI</scope></search><sort><creationdate>20000501</creationdate><title>Improved soil fertility and weed management is profitable for irrigated rice farmers in Sahelian West Africa</title><author>Haefele, S.M ; Johnson, D.E ; Diallo, S ; Wopereis, M.C.S ; Janin, I</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c362t-2e2bbed1e9271695231be8882b605c01288ba3a254543533c71a859da48723573</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2000</creationdate><topic>application rate</topic><topic>application timing</topic><topic>biomass</topic><topic>crop management</topic><topic>crop yield</topic><topic>economic analysis</topic><topic>Economic evaluation</topic><topic>farmers</topic><topic>infestation</topic><topic>Irrigation</topic><topic>nitrogen fertilizers</topic><topic>Oryza sativa</topic><topic>profitability</topic><topic>Rice</topic><topic>Sahel</topic><topic>soil fertility</topic><topic>Soil fertility management</topic><topic>weed control</topic><topic>Weed management</topic><topic>weeds</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Haefele, S.M</creatorcontrib><creatorcontrib>Johnson, D.E</creatorcontrib><creatorcontrib>Diallo, S</creatorcontrib><creatorcontrib>Wopereis, M.C.S</creatorcontrib><creatorcontrib>Janin, I</creatorcontrib><collection>AGRIS</collection><collection>CrossRef</collection><collection>Environment Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Environment Abstracts</collection><jtitle>Field crops research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Haefele, S.M</au><au>Johnson, D.E</au><au>Diallo, S</au><au>Wopereis, M.C.S</au><au>Janin, I</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Improved soil fertility and weed management is profitable for irrigated rice farmers in Sahelian West Africa</atitle><jtitle>Field crops research</jtitle><date>2000-05-01</date><risdate>2000</risdate><volume>66</volume><issue>2</issue><spage>101</spage><epage>113</epage><pages>101-113</pages><issn>0378-4290</issn><eissn>1872-6852</eissn><abstract>Gains in yield and profitability of irrigated rice (
Oryza sativa L.) in the Senegal river region resulting from improved fertilizer and weed management practices were studied in collaboration with farmers’ organizations, national research institutes and farmers. The profitability of different fertilizer and weed management treatments was compared to farmers’ practice using partial budgeting techniques and the net benefit of all treatments was estimated. Improved fertilizer management increased grain yield by 0.9
t
ha
−1, while the recommended weed management resulted in a yield increase of 1.0
t
ha
−1. The effect of recommended management practices was additive and gave a mean yield increase of 1.8
t
ha
−1 compared to farmers’ practices. Principal weed species in rice were
Echinochloa colona (L.) Link,
Diplachne fusca (L.) P. Beauv. ex Stapf,
Sphenoclea zeylanica Gaertner,
Bolboschoenus maritimus L.,
Schoenoplectus senegalensis (Steudel) Raynal,
Cyperus iria L. and
Cyperus difformis L. Indications of propanil-resistant
E. colona were found. Weed infestation was severe and weed biomass comprised between 24 and 49% of the combined biomass of weeds and rice at panicle initiation. Average losses in rice yield caused by weeds were 0.56
t
ha
−1 per 10% of relative weed biomass. The value/cost ratios were between 2.1 and 4.6 for the improved treatments, and improved soil fertility and weed management resulted in an increase in net revenues of 40–85% compared to farmers’ practice.</abstract><pub>Elsevier B.V</pub><doi>10.1016/S0378-4290(00)00066-6</doi><tpages>13</tpages></addata></record> |
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| source | Access via ScienceDirect (Elsevier) |
| subjects | application rate application timing biomass crop management crop yield economic analysis Economic evaluation farmers infestation Irrigation nitrogen fertilizers Oryza sativa profitability Rice Sahel soil fertility Soil fertility management weed control Weed management weeds |
| title | Improved soil fertility and weed management is profitable for irrigated rice farmers in Sahelian West Africa |
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