Silicon as an acidity corrective associated with Azospirillum brasilense to improve nitrogen management and wheat profitability

Author(s)

Galindo, Fernando Shintate ^[1] ; Minhoto Teixeira Filho, Marcelo Carvalho ^[2] ; Buzetti, Salatier ^[2] ; Rodrigues, Willian Lima ^[2] ; Marcandalli Boleta, Eduardo Henrique ^[2] ; Fernandes, Guilherme Carlos ^[3]

Affiliation

^[1] Univ Estadual Paulista, UNESP, Program Posgrad Agron, Curso Doutorado, Campus Ilha Solteira, Ilha Solteira, SP - Brazil

^[2] UNESP, Campus Ilha Solteira, Ilha Solteira, SP - Brazil

^[3] Univ Estadual Paulista, UNESP, Programa Posgrad Agron, Curso Mestrado, Campus Ilha Solteira, Ilha Solteira, SP - Brazil

• Document type: Journal article
• Source: SEMINA-CIENCIAS AGRARIAS; v. 41, n. 2, p. 447-464, MAR-APR 2020.
• Web of Science Citations: 0

Abstract

This research aimed to study a possible synergistic effect with inoculation with A. brasilense and N doses, associated with the application of silicon in acidity corrective form, evaluating the grain yield of irrigated wheat in Cerrado region. The experiment was conducted in Selviria. MS. Brazil, under a no-till system, on a Latossolo Vermelho distrofico (Oxisol). The experiment was set up as a randomized block design with four replications, in a 2 x 5 x 2 factorial arrangement consisting of two soil corrective sources (dolomitic limestone and Ca and Mg silicate as source of Si); five N doses (0, 50, 100, 150, and 200 kg ha(-1)) applied in topdressing; and with and without inoculation with A. brasilense. Inoculation makes wheat production more profitable, irrespective of N doses and corrective sources. The N dose of 139 kg ha(-1) with dolomitic limestone associated with inoculation of A. brasilense provided the greatest grain yield. However, the highest economic return was obtained at the N dose of 100 kg ha(-1), with dolomitic limestone application and inoculation. (AU)

• FAPESP's process: 17/06002-6 - Inoculation with Azospirillum brasilense associated with the use of silicon and nitrogen doses in corn and wheat crops
• Grantee: Fernando Shintate Galindo
• Support type: Scholarships in Brazil - Doctorate