Soil nutrient concentrations and crop yields under sweet potato (Ipomoea batatas) and groundnut (Arachis hypogaea) intercropping in Swaziland
A field experiment was conducted in 2007/2008 cropping season to assess the effects of interplanting a fixed population of groundnut (Arachis hypogaea L.) through a varied population of sweet potato [Ipomoea batatas (L.) Lam.] on soil nutrient concentrations and crop yields. Results showed significa...
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| Veröffentlicht in: | International journal of agriculture and biology 2009-09, Vol.11 (5), p.591-595 |
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| creator | Ossom, E.M. (University of Swaziland, Luyengo (Swaziland). Crop Production Dept.) Kuhlase, L.M. (Illinois State Univ., Normal (USA). Dept. of Agriculture) Rhykerd, R.L. (University of Swaziland, Luyengo (Swaziland). Crop Production Dept.) |
| description | A field experiment was conducted in 2007/2008 cropping season to assess the effects of interplanting a fixed population of groundnut (Arachis hypogaea L.) through a varied population of sweet potato [Ipomoea batatas (L.) Lam.] on soil nutrient concentrations and crop yields. Results showed significant (P less than 0.05) differences in the concentrations of potassium (161.5-239.0 mg per kg), nitrate nitrogen (3.0-4.8 mg per kg) and total nitrogen (0.14-0.19%). There were non-significant differences in marketable tuber yields (25.2-28.6 tones per ha). There were non-significant differences in groundnut pod yield, though the sole crop yielded higher (2,001.0 kg per ha) than the intercrops (1,382.0-1,366.9 kg per ha). Land equivalent ratio showed greater benefit (LER, 1.67) in the lower sweet potato population of 16,667 plants ha-1 than in the higher sweet potato population of 33,333 plants per ha (LER, 1.62). It is recommended that small-scale fa
rmers intercrop sweet potato at 16,667 plants per ha, with groundnut at 200,000 plants per ha. |
| format | Article |
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rmers intercrop sweet potato at 16,667 plants per ha, with groundnut at 200,000 plants per ha.</description><identifier>ISSN: 1560-8530</identifier><identifier>EISSN: 1814-9596</identifier><language>eng</language><subject>ARACHIS HYPOGAEA ; CROP YIELD ; INTERCROPPING ; IPOMOEA BATATAS ; NITROGEN CONTENT ; SOIL CHEMICOPHYSICAL PROPERTIES ; SOIL FERTILITY ; SOIL ORGANIC MATTER ; SWITZERLAND</subject><ispartof>International journal of agriculture and biology, 2009-09, Vol.11 (5), p.591-595</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780</link.rule.ids></links><search><creatorcontrib>Ossom, E.M. (University of Swaziland, Luyengo (Swaziland). Crop Production Dept.)</creatorcontrib><creatorcontrib>Kuhlase, L.M. (Illinois State Univ., Normal (USA). Dept. of Agriculture)</creatorcontrib><creatorcontrib>Rhykerd, R.L. (University of Swaziland, Luyengo (Swaziland). Crop Production Dept.)</creatorcontrib><title>Soil nutrient concentrations and crop yields under sweet potato (Ipomoea batatas) and groundnut (Arachis hypogaea) intercropping in Swaziland</title><title>International journal of agriculture and biology</title><description>A field experiment was conducted in 2007/2008 cropping season to assess the effects of interplanting a fixed population of groundnut (Arachis hypogaea L.) through a varied population of sweet potato [Ipomoea batatas (L.) Lam.] on soil nutrient concentrations and crop yields. Results showed significant (P less than 0.05) differences in the concentrations of potassium (161.5-239.0 mg per kg), nitrate nitrogen (3.0-4.8 mg per kg) and total nitrogen (0.14-0.19%). There were non-significant differences in marketable tuber yields (25.2-28.6 tones per ha). There were non-significant differences in groundnut pod yield, though the sole crop yielded higher (2,001.0 kg per ha) than the intercrops (1,382.0-1,366.9 kg per ha). Land equivalent ratio showed greater benefit (LER, 1.67) in the lower sweet potato population of 16,667 plants ha-1 than in the higher sweet potato population of 33,333 plants per ha (LER, 1.62). It is recommended that small-scale fa
rmers intercrop sweet potato at 16,667 plants per ha, with groundnut at 200,000 plants per ha.</description><subject>ARACHIS HYPOGAEA</subject><subject>CROP YIELD</subject><subject>INTERCROPPING</subject><subject>IPOMOEA BATATAS</subject><subject>NITROGEN CONTENT</subject><subject>SOIL CHEMICOPHYSICAL PROPERTIES</subject><subject>SOIL FERTILITY</subject><subject>SOIL ORGANIC MATTER</subject><subject>SWITZERLAND</subject><issn>1560-8530</issn><issn>1814-9596</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><recordid>eNotkE1LAzEQhhdRsNT-BCHH9rCQTZrN9liKH6UFheq5TLKTbWRNliSl1P_gfzZV5_LOA_M-h7kqRlVTzcuFWNTXeRc1LRvB6W0xifGD5plTtqB0VHzvvO2JO6Zg0SWivdM5AyTrXSTgWqKDH8jZYt9GcnQtBhJPiIkMPkHyZLoe_KdHIAoyQ5z9lrrg823WkukygD7YSA7nwXeAMCPWJQwX7WBdl4nsTvBl-9y7K24M9BEn_zku3h8f3lbP5fblab1abktTSZlK4EyhabQEZHPOUDagQNW1AiEMVUa3TFUVcKlRa2lQZBTAKWeSti0TfFzc_3kN-D10wcb964bR6vKZKit_AKSCYeE</recordid><startdate>20090901</startdate><enddate>20090901</enddate><creator>Ossom, E.M. (University of Swaziland, Luyengo (Swaziland). Crop Production Dept.)</creator><creator>Kuhlase, L.M. (Illinois State Univ., Normal (USA). Dept. of Agriculture)</creator><creator>Rhykerd, R.L. (University of Swaziland, Luyengo (Swaziland). Crop Production Dept.)</creator><scope>FBQ</scope></search><sort><creationdate>20090901</creationdate><title>Soil nutrient concentrations and crop yields under sweet potato (Ipomoea batatas) and groundnut (Arachis hypogaea) intercropping in Swaziland</title><author>Ossom, E.M. (University of Swaziland, Luyengo (Swaziland). Crop Production Dept.) ; Kuhlase, L.M. (Illinois State Univ., Normal (USA). Dept. of Agriculture) ; Rhykerd, R.L. (University of Swaziland, Luyengo (Swaziland). Crop Production Dept.)</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-f177t-a32bef8c7ae2432e78abab66ba55f0bfcd2b11a37cecc7fe52b15a303270dd253</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>ARACHIS HYPOGAEA</topic><topic>CROP YIELD</topic><topic>INTERCROPPING</topic><topic>IPOMOEA BATATAS</topic><topic>NITROGEN CONTENT</topic><topic>SOIL CHEMICOPHYSICAL PROPERTIES</topic><topic>SOIL FERTILITY</topic><topic>SOIL ORGANIC MATTER</topic><topic>SWITZERLAND</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ossom, E.M. (University of Swaziland, Luyengo (Swaziland). Crop Production Dept.)</creatorcontrib><creatorcontrib>Kuhlase, L.M. (Illinois State Univ., Normal (USA). Dept. of Agriculture)</creatorcontrib><creatorcontrib>Rhykerd, R.L. (University of Swaziland, Luyengo (Swaziland). Crop Production Dept.)</creatorcontrib><collection>AGRIS</collection><jtitle>International journal of agriculture and biology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ossom, E.M. (University of Swaziland, Luyengo (Swaziland). Crop Production Dept.)</au><au>Kuhlase, L.M. (Illinois State Univ., Normal (USA). Dept. of Agriculture)</au><au>Rhykerd, R.L. (University of Swaziland, Luyengo (Swaziland). Crop Production Dept.)</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Soil nutrient concentrations and crop yields under sweet potato (Ipomoea batatas) and groundnut (Arachis hypogaea) intercropping in Swaziland</atitle><jtitle>International journal of agriculture and biology</jtitle><date>2009-09-01</date><risdate>2009</risdate><volume>11</volume><issue>5</issue><spage>591</spage><epage>595</epage><pages>591-595</pages><issn>1560-8530</issn><eissn>1814-9596</eissn><abstract>A field experiment was conducted in 2007/2008 cropping season to assess the effects of interplanting a fixed population of groundnut (Arachis hypogaea L.) through a varied population of sweet potato [Ipomoea batatas (L.) Lam.] on soil nutrient concentrations and crop yields. Results showed significant (P less than 0.05) differences in the concentrations of potassium (161.5-239.0 mg per kg), nitrate nitrogen (3.0-4.8 mg per kg) and total nitrogen (0.14-0.19%). There were non-significant differences in marketable tuber yields (25.2-28.6 tones per ha). There were non-significant differences in groundnut pod yield, though the sole crop yielded higher (2,001.0 kg per ha) than the intercrops (1,382.0-1,366.9 kg per ha). Land equivalent ratio showed greater benefit (LER, 1.67) in the lower sweet potato population of 16,667 plants ha-1 than in the higher sweet potato population of 33,333 plants per ha (LER, 1.62). It is recommended that small-scale fa
rmers intercrop sweet potato at 16,667 plants per ha, with groundnut at 200,000 plants per ha.</abstract><tpages>5</tpages></addata></record> |
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| ispartof | International journal of agriculture and biology, 2009-09, Vol.11 (5), p.591-595 |
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| subjects | ARACHIS HYPOGAEA CROP YIELD INTERCROPPING IPOMOEA BATATAS NITROGEN CONTENT SOIL CHEMICOPHYSICAL PROPERTIES SOIL FERTILITY SOIL ORGANIC MATTER SWITZERLAND |
| title | Soil nutrient concentrations and crop yields under sweet potato (Ipomoea batatas) and groundnut (Arachis hypogaea) intercropping in Swaziland |
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