Título:	Nitrogen fertilisation in tropical pastures: what are the impacts of this practice?
Autoria:	GURGEL, A. L. C. DIFANTE, G. dos S. MONTAGNER, D. B. ARAUJO, A. R. de DIAS, A. M. SANTANA, J. C. S. RODRIGUES, J. G. PEREIRA, M. de G.
Afiliação:	Antonio Leandro Chaves Gurgel; Gelson dos Santos Difante; DENISE BAPTAGLIN MONTAGNER, CNPGC; ALEXANDRE ROMEIRO DE ARAUJO, CNPGC; Alexandre Menezes Dias; Juliana Caroline Santos Santana; Jéssica Gomes Rodrigues; Marislayne de Gusmão Pereira.
Ano de publicação:	2020
Referência:	Australian Journal of Crop Science, v. 14. n. 6, p. 978-984, 2020.
Conteúdo:	It is estimated that approximately 47% of the world?s ruminant meat and milk is produced in tropical and subtropical regions, with pasture comprising the main food base of these animals. Nitrogen fertilisation is an essential practice for the maintenance of pasture productivity, considering that a deficiency of this nutrient is a primary factor in triggering pasture degradation. In addition to directly influencing the photochemical and biochemical phases of photosynthesis, nitrogen stimulates enzyme activity and the synthesis of enzymes responsible for fixing CO2 (Rubisco in C3 plants and phosphoenolpyruvate carboxylase in C4 plants), thus increasing the efficiency of atmospheric CO2 capture. All of these physiological processes are easily observed macroscopically in the characteristics of forage plants. This review examines the impact of nitrogen fertilisation in tropical pastures on the main components of production systems (soil, plants and animals), describes the results obtained in different situations and highlights the most efficient ways of producing meat without environmental impacts.
Palavras-chave:	Production system
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CNPGC)