Crop and tillage effect on water productivity of dryland agriculture in Argentina
Rising demands for food and uncertainties about climate change call for a paradigm shift in water management with a stronger focus on rainfed agriculture. The objective here was to estimate water productivity of different crops under no-till (NT) and conventional till (CT), in order to identify rota...
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| Format: | info:ar-repo/semantics/artículo |
| Language: | Inglés |
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2017
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| Online Access: | http://hdl.handle.net/20.500.12123/1480 http://www.mdpi.com/2077-0472/3/1/1 |
| _version_ | 1855034810071777280 |
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| author | Noellemeyer, Elke Fernandez, Romina Quiroga, Alberto Raul |
| author_browse | Fernandez, Romina Noellemeyer, Elke Quiroga, Alberto Raul |
| author_facet | Noellemeyer, Elke Fernandez, Romina Quiroga, Alberto Raul |
| author_sort | Noellemeyer, Elke |
| collection | INTA Digital |
| description | Rising demands for food and uncertainties about climate change call for a paradigm shift in water management with a stronger focus on rainfed agriculture. The objective here was to estimate water productivity of different crops under no-till (NT) and conventional till (CT), in order to identify rotations that improve the water productivity of dryland agriculture. We hypothesized that NT and cereal crops would have a positive effect on overall water productivity. Crop yield and water use data were obtained from a 15 year experiment (1993 to 2008) on an entic Haplustoll in the semiarid Pampa, Argentina, with a rotation of wheat (Triticum aestivum L.), corn (Zea mays L.), sunflower (Helianthus annus), and soybean (Glycine max L. Merr.). The results indicated an improved water productivity of all crops under NT compared with that of CT; however, the response of cereals (corn +1.0 kg ha−1 mm−1, wheat +1.3 kg ha−1 mm−1) was higher than that of sunflower (+0.3 kg ha−1 mm−1) and soybean (+0.5 kg ha−1 mm−1). Crop type had a higher impact on water productivity than did tillage system. In agreement with our hypothesis, cereal crops were more efficient (corn 9.8 and wheat 6.9 kg ha−1 mm−1) compared with soybean 2.4 and sunflower 3.9 kg mm−1, but the economic water productivity of sunflower (0.9 US$ ha−1 mm−1) almost equaled that of wheat (1.1 US$ ha−1mm−1) and corn (1.2 US$ ha−1 mm−1). We concluded that the use of the synergy between NT and water efficient crops could be a promising step towards improving food production in semiarid regions. View Full-Text |
| format | info:ar-repo/semantics/artículo |
| id | INTA1480 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2017 |
| publishDateRange | 2017 |
| publishDateSort | 2017 |
| record_format | dspace |
| spelling | INTA14802019-02-22T14:24:49Z Crop and tillage effect on water productivity of dryland agriculture in Argentina Noellemeyer, Elke Fernandez, Romina Quiroga, Alberto Raul Cereales Agua Valor Energético Plantas Oleaginosas Cultivo Labranza Water Energy Value Oil Crops Cultivation Tillage Argentina Productividad de Agua Contenido Energético Water Productivity Energy Contents Rising demands for food and uncertainties about climate change call for a paradigm shift in water management with a stronger focus on rainfed agriculture. The objective here was to estimate water productivity of different crops under no-till (NT) and conventional till (CT), in order to identify rotations that improve the water productivity of dryland agriculture. We hypothesized that NT and cereal crops would have a positive effect on overall water productivity. Crop yield and water use data were obtained from a 15 year experiment (1993 to 2008) on an entic Haplustoll in the semiarid Pampa, Argentina, with a rotation of wheat (Triticum aestivum L.), corn (Zea mays L.), sunflower (Helianthus annus), and soybean (Glycine max L. Merr.). The results indicated an improved water productivity of all crops under NT compared with that of CT; however, the response of cereals (corn +1.0 kg ha−1 mm−1, wheat +1.3 kg ha−1 mm−1) was higher than that of sunflower (+0.3 kg ha−1 mm−1) and soybean (+0.5 kg ha−1 mm−1). Crop type had a higher impact on water productivity than did tillage system. In agreement with our hypothesis, cereal crops were more efficient (corn 9.8 and wheat 6.9 kg ha−1 mm−1) compared with soybean 2.4 and sunflower 3.9 kg mm−1, but the economic water productivity of sunflower (0.9 US$ ha−1 mm−1) almost equaled that of wheat (1.1 US$ ha−1mm−1) and corn (1.2 US$ ha−1 mm−1). We concluded that the use of the synergy between NT and water efficient crops could be a promising step towards improving food production in semiarid regions. View Full-Text Fil: Noellemeyer, Elke. Universidad Nacional de La Pampa. Facultad de Agronomía; Argentina Fil: Fernandez, Romina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Anguil; Argentina. Universidad Nacional de La Pampa. Facultad de Agronomía; Argentina Fil: Quiroga, Alberto Raul. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Anguil; Argentina. Universidad Nacional de La Pampa. Facultad de Agronomía; Argentina 2017-10-12T15:07:41Z 2017-10-12T15:07:41Z 2013 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/1480 http://www.mdpi.com/2077-0472/3/1/1 2077-0472 10.3390/agriculture3010001 eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Argentina Agriculture / MDPI 3 (1) : 1-11. (Jan. 2013) |
| spellingShingle | Cereales Agua Valor Energético Plantas Oleaginosas Cultivo Labranza Water Energy Value Oil Crops Cultivation Tillage Argentina Productividad de Agua Contenido Energético Water Productivity Energy Contents Noellemeyer, Elke Fernandez, Romina Quiroga, Alberto Raul Crop and tillage effect on water productivity of dryland agriculture in Argentina |
| title | Crop and tillage effect on water productivity of dryland agriculture in Argentina |
| title_full | Crop and tillage effect on water productivity of dryland agriculture in Argentina |
| title_fullStr | Crop and tillage effect on water productivity of dryland agriculture in Argentina |
| title_full_unstemmed | Crop and tillage effect on water productivity of dryland agriculture in Argentina |
| title_short | Crop and tillage effect on water productivity of dryland agriculture in Argentina |
| title_sort | crop and tillage effect on water productivity of dryland agriculture in argentina |
| topic | Cereales Agua Valor Energético Plantas Oleaginosas Cultivo Labranza Water Energy Value Oil Crops Cultivation Tillage Argentina Productividad de Agua Contenido Energético Water Productivity Energy Contents |
| url | http://hdl.handle.net/20.500.12123/1480 http://www.mdpi.com/2077-0472/3/1/1 |
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