Meta-analysis of the response of Megathyrsus maximus (Syn. Panicum maximum) and Pennisetum purpureum to nitrogen fertilization

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DOI:

https://doi.org/10.18188/sap.v21i1.29151

Abstract

The present work employed a metanalytical study to summarize and analyze data on nitrogen fertilization in forage species Pennisetum purpureum (elephant grass) and Megathyrsus maximus (Sin. Panicum maximum). Research works carried out in Brazil between 2010 and 2020 were considered, including only scientific articles and dissertations. Based on the data contained in these works, the relative increment of dry matter and crude protein was calculated in relation to the control treatment (without nitrogen fertilization) and the efficiency of the use of nitrogen in the production of dry matter and crude protein. All data collected were subjected to analysis of variance for linear and quadratic effect in each of the variables, in the case of significance, regression analysis was performed. Nitrogen fertilization on Pennisetum purpureum above 1000 kilograms of nitrogen per hectare and in Megathyrsus maximus (Sin. Panicum maximum) above 100 kilograms of nitrogen per hectare compromises the efficiency of dry matter production. At doses above 500 kilograms of nitrogen there is a drastic reduction in the efficiency of crude protein production by Pennisetum purpureum. The same reduction is seen in all doses of nitrogen by Megathyrsus maximus (Sin. Panicum maximum).

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Published

30/03/2022

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Scientific Article

How to Cite

OLIVEIRA, Lazaro Tiago de; DEMINICIS, Bruno Borges. Meta-analysis of the response of Megathyrsus maximus (Syn. Panicum maximum) and Pennisetum purpureum to nitrogen fertilization. Scientia Agraria Paranaensis, [S. l.], v. 21, n. 1, p. 36–43, 2022. DOI: 10.18188/sap.v21i1.29151. Disponível em: https://e-revista.unioeste.br/index.php/scientiaagraria/article/view/29151. Acesso em: 8 oct. 2026.