Autor(es):
Galindo, Fernando Shintate [UNESP] ; Teixeira Filho, Marcelo Carvalho Minhoto [UNESP] ; Buzetti, Salatiér [UNESP] ; Santini, José Mateus Kondo [UNESP] ; Montanari, Rafael [UNESP] ; Freitas, Leandro Alves [UNESP] ; Rodrigues, Willian Lima [UNESP]
Data: 2020
Identificador Persistente: http://hdl.handle.net/11449/201286
Origem: Oasisbr
Assunto(s): biological nitrogen fixation; nitrogen sources; nutrients removal; Triticum aestivumL; urease inhibitor; biological nitrogen fixation; biological nitrogen fixation; nitrogen sources; nitrogen sources; nutrients removal; nutrients removal; Triticum aestivumL; Triticum aestivumL; urease inhibitor; urease inhibitor
Descrição
Made available in DSpace on 2020-12-12T02:28:46Z (GMT). No. of bitstreams: 0 Previous issue date: 2019-10-28
Alternative options to feed an ever-growing global population requires to be developed to supplement chemical fertilizer use. Nitrogen (N) is the chemical fertilizer most used for non-legume crops. Research showing the potential for management practices which supplement the use of N fertilizer is utmost important. This research was developed to investigate the potential use of Azospirillum brasilense to enhance micronutrient accumulation in wheat cropping systems; and, to assess the potential interactions between biological nitrogen fixation (BNF) and urease inhibitor N-(n-butyl) thiophosphoric triamide (NBPT). The objective was to evaluate the effect of N sources and doses associated with inoculation with A. brasilense, regarding micronutrients accumulation, and its influence on wheat grain yield in Savannah conditions. The study was carried out in a Rhodic Hapludox under no-tillage. The experimental design was a randomized complete block design with four replications arranged in a 2 × 5 x 2 factorial scheme: two N sources (urea and urea with NBPT), five N rates (0, 50, 100, 150 and 200 kg ha−1), with and without A. brasilense inoculation. N rates increased the uptake and removal of micronutrients. Urea with NBPT was not efficient in optimizing nitrogen fertilization. Inoculation with A. brasilense provided a higher accumulation of Cu, Fe, Mn and Zn in the straw and Mn and Zn in grains. The inoculation with A. brasilense associated with 140 kg ha−1 of N provided increased wheat grain yield.
Department of plant health rural engineering and soils (DEFERS) São Paulo State University (UNESP)
Department of plant health rural engineering and soils (DEFERS) São Paulo State University (UNESP)
