Data/hora: 20/06/2024 21:40:40

Biblioteca(s): 	Embrapa Agrobiologia.	
Data corrente: 	11/07/2018	
Data da última atualização: 	06/02/2019	
Autoria: 	PEREIRA, W.; SOUZA, J. S.; SCHULTZ, N.; REIS, V. M.	
Afiliação: 	WILLIAN PEREIRA, UFRRJ; JAILSON SILVA SOUSA, UFRRJ; NIVALDO SCHULTZ, UFRRJ; VERONICA MASSENA REIS, CNPAB.	
Título: 	Sugarcane productivity as a function of nitrogen fertilization and inoculation with diazotrophic plant growth-promoting bacteria.	
Ano de publicação: 	2019	
Fonte/Imprenta: 	Sugar Tech, v. 21, n. 1, p. 71?82, 2019.	
ISSN: 	0972-1525	
DOI: 	h https://doi.org/10.1007/s12355-018-0638-7	
Idioma: 	Português	
Conteúdo: 	Sugarcane ratoons respond to nitrogen fertilizer application, but the N efficiency is low. Diazotrophs applied as a growth promoter bacterium can influence crop yield by several mechanisms, including a greater root growth and higher N absorption. The objective of the present work was to evaluate the stalk and sugar yields, and the economic index of sugarcane as a function of nitrogen fertilization and inoculation with diazotrophic plant growth-promoting bacteria (DPGPB). Two experiments were implemented in areas of two sugarcane mills in the state of São Paulo, Brazil: one in the Diamante Mill and one in the Santa Helena Mill. The experimental design was a randomized complete block with four N-fertilizer doses (0, 50, 100 and 150 kg ha?1), with or without DPGPB inoculation using five replicates. The application of the inoculant promoted a productivity increase in the Diamante Mill for all treatments with N, even in the absence of N-fertilization, while at the Santa Helena Mill that occurred with the 50 kg ha?1 dosage. The inoculation with DPGPB, together with the application of the 50 kg N ha?1 dose, achieved the highest economic return at both mills. The application of the inoculant associated with a low dose of N-fertilizer was profitable and proven feasible for field application. The results evidenced the viability of the technology for sugarcane production, with gains in productivity and a possible reduction in nitrogen fertilizatio	
Palavras-Chave: 	Diazotrophic bacteria; Growth promotion Sustainability; Inoculant.	
Categoria do assunto: 	S Ciências Biológicas	
Registro original: 	Embrapa Agrobiologia (CNPAB)	
Exemplares: 	CNPAB - (40804-1) - UPC - AP - DD - 2018.00083 -  - 2018.00083 - DIS