Field methods for making productivity classes for site-specific management of wheat
Reducing the decision-making unit to classes within fields can improve yields, efficiency in the use of nutrients and profitability of crops. The objectives were to compare methods for class delimitation in wheat (Triticum aestivum L.) crops based on apparent productivity levels and establish simila...
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| Format: | info:ar-repo/semantics/artículo |
| Language: | Inglés |
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Springer
2022
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| Online Access: | http://hdl.handle.net/20.500.12123/11717 https://link.springer.com/article/10.1007/s11119-022-09878-3 https://doi.org/10.1007/s11119-022-09878-3 |
| _version_ | 1855036624179560448 |
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| author | Lopez De Sabando, Marcelo Díaz Zorita, Martín |
| author_browse | Díaz Zorita, Martín Lopez De Sabando, Marcelo |
| author_facet | Lopez De Sabando, Marcelo Díaz Zorita, Martín |
| author_sort | Lopez De Sabando, Marcelo |
| collection | INTA Digital |
| description | Reducing the decision-making unit to classes within fields can improve yields, efficiency in the use of nutrients and profitability of crops. The objectives were to compare methods for class delimitation in wheat (Triticum aestivum L.) crops based on apparent productivity levels and establish similarities among them in terms of spatial overlapping, productive attributes and the use of nitrogen. In three wheat fields, high and low apparent productivity classes (APC) were defined based on eight methodologies: yield maps, soil maps, gramineae vegetation index, rotation crop index, interpretation of satellite images, management records, elevation and integrated soil and yield maps. In each APC, soil and crop yield components were determined under five nitrogen fertilization levels. Among delimitation methodologies, the degree of coincidence varied from 1.4 to 81.7%. The differences in soil properties, nitrogen use efficiency and grain yields were greater among fields than among APC within each field. In each field, the delimitation methodologies identified different single factors that discriminated among the potential management classes and were partially associated with the crop grain yields. The wheat crops at the low APC yielded 39% less and 12% less than at the high APC, respectively. The nitrogen fertilization, at the rate for maximum productivity for each ACP, reduced the yield differences between contrasting APC. Nitrogen fertilization also modified clustering of classes based on expected yields. Making management classes for wheat based on expected productivity is more accurate when based on previous crop production information under similar nitrogen fertilization conditions than the targeted crop. |
| format | info:ar-repo/semantics/artículo |
| id | INTA11717 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2022 |
| publishDateRange | 2022 |
| publishDateSort | 2022 |
| publisher | Springer |
| publisherStr | Springer |
| record_format | dspace |
| spelling | INTA117172022-04-25T11:02:44Z Field methods for making productivity classes for site-specific management of wheat Lopez De Sabando, Marcelo Díaz Zorita, Martín Trigo Nitrógeno Eficiencia en el Uso de los Nutrientes Suelo Cultivo en Tierras Áridas Manejo del Cultivo Wheat Nitrogen Nutrient Use Efficiency Soil Dry Farming Crop Management Reducing the decision-making unit to classes within fields can improve yields, efficiency in the use of nutrients and profitability of crops. The objectives were to compare methods for class delimitation in wheat (Triticum aestivum L.) crops based on apparent productivity levels and establish similarities among them in terms of spatial overlapping, productive attributes and the use of nitrogen. In three wheat fields, high and low apparent productivity classes (APC) were defined based on eight methodologies: yield maps, soil maps, gramineae vegetation index, rotation crop index, interpretation of satellite images, management records, elevation and integrated soil and yield maps. In each APC, soil and crop yield components were determined under five nitrogen fertilization levels. Among delimitation methodologies, the degree of coincidence varied from 1.4 to 81.7%. The differences in soil properties, nitrogen use efficiency and grain yields were greater among fields than among APC within each field. In each field, the delimitation methodologies identified different single factors that discriminated among the potential management classes and were partially associated with the crop grain yields. The wheat crops at the low APC yielded 39% less and 12% less than at the high APC, respectively. The nitrogen fertilization, at the rate for maximum productivity for each ACP, reduced the yield differences between contrasting APC. Nitrogen fertilization also modified clustering of classes based on expected yields. Making management classes for wheat based on expected productivity is more accurate when based on previous crop production information under similar nitrogen fertilization conditions than the targeted crop. EEA Balcarce Fil: Lopez de Sabando, Marcelo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce. Agencia De Extensión Rural Tandil; Argentina. Fil: Diaz Zorita, Martín. Universidad de La Pampa; Argentina. 2022-04-25T10:56:12Z 2022-04-25T10:56:12Z 2022-02-02 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/20.500.12123/11717 https://link.springer.com/article/10.1007/s11119-022-09878-3 1385-2256 1573-1618 https://doi.org/10.1007/s11119-022-09878-3 eng info:eu-repograntAgreement/INTA/2019-PE-E9-I177-001/2019-PE-E9-I177-001/AR./Desarrollo y aplicación de tecnologías de mecanización, precisión y digitalización de la Agricultura info:eu-repo/semantics/restrictedAccess application/pdf Springer Precision Agriculture (Published: 02 February 2022) |
| spellingShingle | Trigo Nitrógeno Eficiencia en el Uso de los Nutrientes Suelo Cultivo en Tierras Áridas Manejo del Cultivo Wheat Nitrogen Nutrient Use Efficiency Soil Dry Farming Crop Management Lopez De Sabando, Marcelo Díaz Zorita, Martín Field methods for making productivity classes for site-specific management of wheat |
| title | Field methods for making productivity classes for site-specific management of wheat |
| title_full | Field methods for making productivity classes for site-specific management of wheat |
| title_fullStr | Field methods for making productivity classes for site-specific management of wheat |
| title_full_unstemmed | Field methods for making productivity classes for site-specific management of wheat |
| title_short | Field methods for making productivity classes for site-specific management of wheat |
| title_sort | field methods for making productivity classes for site specific management of wheat |
| topic | Trigo Nitrógeno Eficiencia en el Uso de los Nutrientes Suelo Cultivo en Tierras Áridas Manejo del Cultivo Wheat Nitrogen Nutrient Use Efficiency Soil Dry Farming Crop Management |
| url | http://hdl.handle.net/20.500.12123/11717 https://link.springer.com/article/10.1007/s11119-022-09878-3 https://doi.org/10.1007/s11119-022-09878-3 |
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