Can Leguminous Cover Crops Partially Replace Nitrogen Fertilization in Mississippi Delta Cotton Production?
Petroleum prices impact cotton nitrogen (N) fertilization cost. A field study was conducted from 2005 to 2007 to assess the interactions of cover crop (none, Austrian winter pea (Pisum sativum spp. arvense) or hairy vetch (Vicia villosa Roth)) and N fertilization (0, 67 or 134 kg N/ha applied at pla...
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| Format: | Article |
| Language: | English |
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Wiley
2011-01-01
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| Series: | International Journal of Agronomy |
| Online Access: | http://dx.doi.org/10.1155/2011/135097 |
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| author | Robert M. Zablotowicz Krishna N. Reddy L. Jason Krutz R. Earl Gordon Ryan E. Jackson Leslie D. Price |
| author_facet | Robert M. Zablotowicz Krishna N. Reddy L. Jason Krutz R. Earl Gordon Ryan E. Jackson Leslie D. Price |
| author_sort | Robert M. Zablotowicz |
| collection | DOAJ |
| description | Petroleum prices impact cotton nitrogen (N) fertilization cost. A field study was conducted from 2005 to 2007 to assess the interactions of cover crop (none, Austrian winter pea (Pisum sativum spp. arvense) or hairy vetch (Vicia villosa Roth)) and N fertilization (0, 67 or 134 kg N/ha applied at planting) on N availability and cotton yield under reduced-tillage management. Nitrogen content in desiccated residues averaged 49, 220, and 183 kg N/ha, in no cover crop, Austrian winter pea, and hairy vetch, respectively. Seventy percent of N in the above ground cover crop was derived from biological N fixation. In 2005, cover crops decreased cotton yield, while fertilizer N had no effect. In 2006, cover crops did not affect yield, but yield was positively correlated with N rate. In 2007, in no N plots, cotton yields were 65% higher in cover crops than in no cover crop. However, yield from N fertilized cover crop plots were similar to N fertilized no cover plots. These results indicate that leguminous cover crops can provide over 150 kg N/ha, but this N may not be as effective as fertilizer N for lack of synchronization between cotton N requirements and N release from residues. |
| format | Article |
| id | doaj-art-e9f5a407b9f0475689ae0d37f930334c |
| institution | OA Journals |
| issn | 1687-8159 1687-8167 |
| language | English |
| publishDate | 2011-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Agronomy |
| spelling | doaj-art-e9f5a407b9f0475689ae0d37f930334c2025-08-20T02:21:54ZengWileyInternational Journal of Agronomy1687-81591687-81672011-01-01201110.1155/2011/135097135097Can Leguminous Cover Crops Partially Replace Nitrogen Fertilization in Mississippi Delta Cotton Production?Robert M. Zablotowicz0Krishna N. Reddy1L. Jason Krutz2R. Earl Gordon3Ryan E. Jackson4Leslie D. Price5Crop Production Systems Research Unit, USDA-Agricultural Research Service, 141 Experiment Station Road, Stoneville, MS 38776, USACrop Production Systems Research Unit, USDA-Agricultural Research Service, 141 Experiment Station Road, Stoneville, MS 38776, USACrop Production Systems Research Unit, USDA-Agricultural Research Service, 141 Experiment Station Road, Stoneville, MS 38776, USACrop Production Systems Research Unit, USDA-Agricultural Research Service, 141 Experiment Station Road, Stoneville, MS 38776, USASouthern Insect Management Research Unit, USDA-Agricultural Research Service, 141 Experiment Station Road, Stoneville, MS 38776, USASouthern Insect Management Research Unit, USDA-Agricultural Research Service, 141 Experiment Station Road, Stoneville, MS 38776, USAPetroleum prices impact cotton nitrogen (N) fertilization cost. A field study was conducted from 2005 to 2007 to assess the interactions of cover crop (none, Austrian winter pea (Pisum sativum spp. arvense) or hairy vetch (Vicia villosa Roth)) and N fertilization (0, 67 or 134 kg N/ha applied at planting) on N availability and cotton yield under reduced-tillage management. Nitrogen content in desiccated residues averaged 49, 220, and 183 kg N/ha, in no cover crop, Austrian winter pea, and hairy vetch, respectively. Seventy percent of N in the above ground cover crop was derived from biological N fixation. In 2005, cover crops decreased cotton yield, while fertilizer N had no effect. In 2006, cover crops did not affect yield, but yield was positively correlated with N rate. In 2007, in no N plots, cotton yields were 65% higher in cover crops than in no cover crop. However, yield from N fertilized cover crop plots were similar to N fertilized no cover plots. These results indicate that leguminous cover crops can provide over 150 kg N/ha, but this N may not be as effective as fertilizer N for lack of synchronization between cotton N requirements and N release from residues.http://dx.doi.org/10.1155/2011/135097 |
| spellingShingle | Robert M. Zablotowicz Krishna N. Reddy L. Jason Krutz R. Earl Gordon Ryan E. Jackson Leslie D. Price Can Leguminous Cover Crops Partially Replace Nitrogen Fertilization in Mississippi Delta Cotton Production? International Journal of Agronomy |
| title | Can Leguminous Cover Crops Partially Replace Nitrogen Fertilization in Mississippi Delta Cotton Production? |
| title_full | Can Leguminous Cover Crops Partially Replace Nitrogen Fertilization in Mississippi Delta Cotton Production? |
| title_fullStr | Can Leguminous Cover Crops Partially Replace Nitrogen Fertilization in Mississippi Delta Cotton Production? |
| title_full_unstemmed | Can Leguminous Cover Crops Partially Replace Nitrogen Fertilization in Mississippi Delta Cotton Production? |
| title_short | Can Leguminous Cover Crops Partially Replace Nitrogen Fertilization in Mississippi Delta Cotton Production? |
| title_sort | can leguminous cover crops partially replace nitrogen fertilization in mississippi delta cotton production |
| url | http://dx.doi.org/10.1155/2011/135097 |
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