Effects of nitrogen fertilization and seasons on the morphogenetic and structural characteristics of Piatã (Brachiaria brizantha) grass
The objective of this study was to evaluate the morphogenetic and structural characteristics of Piatã grass under rotational stocking and nitrogen fertilization during the seasons. A randomized complete block design in a split-plot arrangement with three replications was used. The main plots were th...
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| Formato: | Online |
| Lenguaje: | eng |
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Facultad de Ciencias Agrarias-UNCuyo
2019
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| Acceso en línea: | https://revistas.uncu.edu.ar/ojs3/index.php/RFCA/article/view/2592 |
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I11-R107article-25922020-04-22T13:37:49Z Effects of nitrogen fertilization and seasons on the morphogenetic and structural characteristics of Piatã (Brachiaria brizantha) grass Effects of nitrogen fertilization and seasons on the morphogenetic and structural characteristics of Piatã (Brachiaria brizantha) grass Farias, Lorraine do Nascimento Zanine, Anderson de Moura Ferreira, Daniele de Jesus Ribeiro, Marinaldo Divino de Souza, Alexandre Lima Valério Geron, Luiz Juliano Araujo Pinho, Ricardo Martins Santos, Edson Mauro Brachiaria brizantha manejo del pastoreo tasa de aparición de hojas tasa de elongación de hojas vida media foliar tasa de senscencia de las hojas Brachiaria brizantha grazing management leaf appearance rate leaf elongation rate leaf lifespan leaf senescence rate The objective of this study was to evaluate the morphogenetic and structural characteristics of Piatã grass under rotational stocking and nitrogen fertilization during the seasons. A randomized complete block design in a split-plot arrangement with three replications was used. The main plots were the applications of 0, 150, 300 and 450 kg per ha of N in the form of urea, and the subplots were seasons of the year: late summer/fall, winter, spring and summer. No interaction was detected between nitrogen fertilization and season for leaf appearance rate, leaf lifespan, number of live leaves and final length leaves. However, an interaction (P<0.05) of nitrogen fertilization and season influenced leaf elongation rate, phyllochron, leaf senescence rate and stem elongation rate. The leaf elongation rate and leaf appearance rate were linearly affected (P<0.05) by nitrogen fertilization. The seasons affected (P<0.05) the leaf lifespan and number of life leaves. The leaf lifespan decreased by 0.06 days for each kg of N applied. On the other hand, the number of live leaves increased by 0.0026 leaves/tiller for each kg of N. Fertilization with nitrogen positively affects morphogenetic and structural characteristics of Piatã grass under rotational stocking. This effect can be optimized during rainy periods in spring and late summer/autumn. The objective of this study was to evaluate the morphogenetic and structural characteristics of Piatã grass under rotational stocking and nitrogen fertilization during the seasons. A randomized complete block design in a split-plot arrangement with three replications was used. The main plots were the applications of 0, 150, 300 and 450 kg per ha of N in the form of urea, and the subplots were seasons of the year: late summer/fall, winter, spring and summer. No interaction was detected between nitrogen fertilization and season for leaf appearance rate, leaf lifespan, number of live leaves and final length leaves. However, an interaction (P<0.05) of nitrogen fertilization and season influenced leaf elongation rate, phyllochron, leaf senescence rate and stem elongation rate. The leaf elongation rate and leaf appearance rate were linearly affected (P<0.05) by nitrogen fertilization. The seasons affected (P<0.05) the leaf lifespan and number of life leaves. The leaf lifespan decreased by 0.06 days for each kg of N applied. On the other hand, the number of live leaves increased by 0.0026 leaves/tiller for each kg of N. Fertilization with nitrogen positively affects morphogenetic and structural characteristics of Piatã grass under rotational stocking. This effect can be optimized during rainy periods in spring and late summer/autumn. Facultad de Ciencias Agrarias-UNCuyo 2019-12-09 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.uncu.edu.ar/ojs3/index.php/RFCA/article/view/2592 Revista de la Facultad de Ciencias Agrarias UNCuyo; Vol. 51 No. 2 (2019): July-December; 42-54 Revista de la Facultad de Ciencias Agrarias UNCuyo; Vol. 51 Núm. 2 (2019): Julio-Diciembre; 42-54 1853-8665 0370-4661 eng https://revistas.uncu.edu.ar/ojs3/index.php/RFCA/article/view/2592/1934 Derechos de autor 2019 Revista de la Facultad de Ciencias Agrarias UNCuyo |
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Universidad Nacional de Cuyo |
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Revistas en línea |
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Revistas en línea |
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Revista de la Facultad de Ciencias Agrarias |
| journal_title_str |
Revista de la Facultad de Ciencias Agrarias |
| institution_str |
I-11 |
| repository_str |
R-107 |
| language |
eng |
| format |
Online |
| author |
Farias, Lorraine do Nascimento Zanine, Anderson de Moura Ferreira, Daniele de Jesus Ribeiro, Marinaldo Divino de Souza, Alexandre Lima Valério Geron, Luiz Juliano Araujo Pinho, Ricardo Martins Santos, Edson Mauro |
| spellingShingle |
Farias, Lorraine do Nascimento Zanine, Anderson de Moura Ferreira, Daniele de Jesus Ribeiro, Marinaldo Divino de Souza, Alexandre Lima Valério Geron, Luiz Juliano Araujo Pinho, Ricardo Martins Santos, Edson Mauro Effects of nitrogen fertilization and seasons on the morphogenetic and structural characteristics of Piatã (Brachiaria brizantha) grass Brachiaria brizantha manejo del pastoreo tasa de aparición de hojas tasa de elongación de hojas vida media foliar tasa de senscencia de las hojas Brachiaria brizantha grazing management leaf appearance rate leaf elongation rate leaf lifespan leaf senescence rate |
| author_facet |
Farias, Lorraine do Nascimento Zanine, Anderson de Moura Ferreira, Daniele de Jesus Ribeiro, Marinaldo Divino de Souza, Alexandre Lima Valério Geron, Luiz Juliano Araujo Pinho, Ricardo Martins Santos, Edson Mauro |
| author_sort |
Farias, Lorraine do Nascimento |
| title |
Effects of nitrogen fertilization and seasons on the morphogenetic and structural characteristics of Piatã (Brachiaria brizantha) grass |
| title_short |
Effects of nitrogen fertilization and seasons on the morphogenetic and structural characteristics of Piatã (Brachiaria brizantha) grass |
| title_full |
Effects of nitrogen fertilization and seasons on the morphogenetic and structural characteristics of Piatã (Brachiaria brizantha) grass |
| title_fullStr |
Effects of nitrogen fertilization and seasons on the morphogenetic and structural characteristics of Piatã (Brachiaria brizantha) grass |
| title_full_unstemmed |
Effects of nitrogen fertilization and seasons on the morphogenetic and structural characteristics of Piatã (Brachiaria brizantha) grass |
| title_sort |
effects of nitrogen fertilization and seasons on the morphogenetic and structural characteristics of piatã (brachiaria brizantha) grass |
| description |
The objective of this study was to evaluate the morphogenetic and structural characteristics of Piatã grass under rotational stocking and nitrogen fertilization during the seasons. A randomized complete block design in a split-plot arrangement with three replications was used. The main plots were the applications of 0, 150, 300 and 450 kg per ha of N in the form of urea, and the subplots were seasons of the year: late summer/fall, winter, spring and summer. No interaction was detected between nitrogen fertilization and season for leaf appearance rate, leaf lifespan, number of live leaves and final length leaves. However, an interaction (P<0.05) of nitrogen fertilization and season influenced leaf elongation rate, phyllochron, leaf senescence rate and stem elongation rate. The leaf elongation rate and leaf appearance rate were linearly affected (P<0.05) by nitrogen fertilization. The seasons affected (P<0.05) the leaf lifespan and number of life leaves. The leaf lifespan decreased by 0.06 days for each kg of N applied. On the other hand, the number of live leaves increased by 0.0026 leaves/tiller for each kg of N. Fertilization with nitrogen positively affects morphogenetic and structural characteristics of Piatã grass under rotational stocking. This effect can be optimized during rainy periods in spring and late summer/autumn. |
| publisher |
Facultad de Ciencias Agrarias-UNCuyo |
| publishDate |
2019 |
| url |
https://revistas.uncu.edu.ar/ojs3/index.php/RFCA/article/view/2592 |
| topic |
Brachiaria brizantha manejo del pastoreo tasa de aparición de hojas tasa de elongación de hojas vida media foliar tasa de senscencia de las hojas Brachiaria brizantha grazing management leaf appearance rate leaf elongation rate leaf lifespan leaf senescence rate |
| topic_facet |
Brachiaria brizantha manejo del pastoreo tasa de aparición de hojas tasa de elongación de hojas vida media foliar tasa de senscencia de las hojas Brachiaria brizantha grazing management leaf appearance rate leaf elongation rate leaf lifespan leaf senescence rate |
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