Narrow and twin-row plantings do not increase maize yield
Reducing row space and sowing in twin rows of maize (Zea mays L.) allow more equidistant plant distribution at the same density. The objective of this research was to evaluate the effect of these two management practices on the nitrogen content of the index leaf, the leaf area index at silking, and the grain yield of maize at different plant densities. The experiment was carried out in Lages, Santa Catarina State University, in southern Brazil during the growing seasons 2016-2017 and 2017-2018. A split-plot arrangement of a randomized complete block design was used. Two plant densities (7 and 9 plants m-2) were distributed in the main plot, and five row spaces (0.4, 0.6, 0.8, 1.0 m and twin rows 0.6 m apart with 0.18 m between rows) were evaluated in split-plots. Physiological traits and grain yield were determined on the maize hybrid P30R50YH. The experiments were sown on 10/20/2016 and 10/21/2017. Kernel yields were higher at the plant density of 9 plants m-2 than at 7 plants m-2. The row space did not affect the nitrogen content of the index leaf, the crop leaf area index at silking, and the maize grain yield. The increment of plant density was more effective than the use of narrow and twin rows to enhance P30R50YH hybrid grain yield.
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Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ciencias Agrarias
2020
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oai:www.revistas.unal.edu.co:article-861172021-08-09T17:17:50Z Narrow and twin-row plantings do not increase maize yield Siembras en hileras estrechas y mellizas no incrementan el rendimiento del maíz Sangoi, Luís Schmitt, Amauri Cardoso Martins Júnior, Marcos Kuneski, Hugo François Coelho, Antonio Eduardo rendimiento de granos distribuci´ón de plantas densidad de plantas grain yield plant arrangement plant density Reducing row space and sowing in twin rows of maize (Zea mays L.) allow more equidistant plant distribution at the same density. The objective of this research was to evaluate the effect of these two management practices on the nitrogen content of the index leaf, the leaf area index at silking, and the grain yield of maize at different plant densities. The experiment was carried out in Lages, Santa Catarina State University, in southern Brazil during the growing seasons 2016-2017 and 2017-2018. A split-plot arrangement of a randomized complete block design was used. Two plant densities (7 and 9 plants m-2) were distributed in the main plot, and five row spaces (0.4, 0.6, 0.8, 1.0 m and twin rows 0.6 m apart with 0.18 m between rows) were evaluated in split-plots. Physiological traits and grain yield were determined on the maize hybrid P30R50YH. The experiments were sown on 10/20/2016 and 10/21/2017. Kernel yields were higher at the plant density of 9 plants m-2 than at 7 plants m-2. The row space did not affect the nitrogen content of the index leaf, the crop leaf area index at silking, and the maize grain yield. The increment of plant density was more effective than the use of narrow and twin rows to enhance P30R50YH hybrid grain yield. La reducción del espacio entre líneas y la siembra en líneas dobles en maíz (Zea mays L.) permite una distribución más equidistante de las plantas con una misma densidad. El objetivo de este trabajo fue evaluar los efectos de dos prácticas de manejo sobre el contenido de nitrógeno en la hoja índice, el índice de área foliar del cultivo y el rendimiento de granos de maíz a diferentes densidades de plantas. El experimento fue realizado en Lages, en la universidad del estado de Santa Catarina, en el sur de Brasil, en los periodos de cosecha 2016/2017 y 2017/2018. Se utilizó un arreglo de parcelas divididas de un diseño experimental de bloques completos al azar. En la parcela principal se evaluaron dos densidades (7 y 9 plantas m-2) y en las subparcelas se evaluaron cinco espacios entre líneas (0.4 m, 0.6 m, 0.8 m, 1.0 m y líneas dobles de 0.6 m entre cada una y 0.18 m entre líneas del par). Se evaluaron las características fisiológicas y el rendimiento de granos del maíz hibrido P30R50YH, sembrado en 20/10/2016 y 21/10/2017. Los rendimientos de grano fueronmayores en la densidad de 9 plantas m-2 que a 7 plantas m-2. El espacio entre filas no afectó el índice de contenido de nitrógeno en la hoja, el índice de área foliar del cultivo en el espigamiento, y el rendimiento de granos. El incremento en la densidad de plantas fue más eficiente que la reducción del espacio entre líneas y la siembra en líneas dobles para incrementar el rendimiento del hibrido P30R50YH. Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ciencias Agrarias 2020-09-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.unal.edu.co/index.php/agrocol/article/view/86117 10.15446/agron.colomb.v38n3.86117 Agronomía Colombiana; Vol. 38 No. 3 (2020); 342-349 Agronomía Colombiana; Vol. 38 Núm. 3 (2020); 342-349 Agronomía Colombiana; v. 38 n. 3 (2020); 342-349 2357-3732 0120-9965 eng https://revistas.unal.edu.co/index.php/agrocol/article/view/86117/78224 Copyright (c) 2021 Agronomía Colombiana https://creativecommons.org/licenses/by-nc-sa/4.0 |
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Colombia |
| countrycode |
CO |
| component |
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| access |
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| databasecode |
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| libraryname |
tema Nacional de Bibliotecas de la UNAL |
| language |
eng |
| format |
Digital |
| author |
Sangoi, Luís Schmitt, Amauri Cardoso Martins Júnior, Marcos Kuneski, Hugo François Coelho, Antonio Eduardo |
| spellingShingle |
Sangoi, Luís Schmitt, Amauri Cardoso Martins Júnior, Marcos Kuneski, Hugo François Coelho, Antonio Eduardo Narrow and twin-row plantings do not increase maize yield |
| author_facet |
Sangoi, Luís Schmitt, Amauri Cardoso Martins Júnior, Marcos Kuneski, Hugo François Coelho, Antonio Eduardo |
| author_sort |
Sangoi, Luís |
| title |
Narrow and twin-row plantings do not increase maize yield |
| title_short |
Narrow and twin-row plantings do not increase maize yield |
| title_full |
Narrow and twin-row plantings do not increase maize yield |
| title_fullStr |
Narrow and twin-row plantings do not increase maize yield |
| title_full_unstemmed |
Narrow and twin-row plantings do not increase maize yield |
| title_sort |
narrow and twin-row plantings do not increase maize yield |
| description |
Reducing row space and sowing in twin rows of maize (Zea mays L.) allow more equidistant plant distribution at the same density. The objective of this research was to evaluate the effect of these two management practices on the nitrogen content of the index leaf, the leaf area index at silking, and the grain yield of maize at different plant densities. The experiment was carried out in Lages, Santa Catarina State University, in southern Brazil during the growing seasons 2016-2017 and 2017-2018. A split-plot arrangement of a randomized complete block design was used. Two plant densities (7 and 9 plants m-2) were distributed in the main plot, and five row spaces (0.4, 0.6, 0.8, 1.0 m and twin rows 0.6 m apart with 0.18 m between rows) were evaluated in split-plots. Physiological traits and grain yield were determined on the maize hybrid P30R50YH. The experiments were sown on 10/20/2016 and 10/21/2017. Kernel yields were higher at the plant density of 9 plants m-2 than at 7 plants m-2. The row space did not affect the nitrogen content of the index leaf, the crop leaf area index at silking, and the maize grain yield. The increment of plant density was more effective than the use of narrow and twin rows to enhance P30R50YH hybrid grain yield. |
| publisher |
Universidad Nacional de Colombia - Sede Bogotá - Facultad de Ciencias Agrarias |
| publishDate |
2020 |
| url |
https://revistas.unal.edu.co/index.php/agrocol/article/view/86117 |
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