TITLE:
Use of Foliar Fertilizers for the Specific Physiological Management of Different Soybean Crop Stages
AUTHORS:
Nelmício Furtado da Silva, Giovani Saccardo Clemente, Marconi Batista Teixeira, Frederico Antônio Loureiro Soares, Fernando Nobre Cunha, Luis Otávio da Silva Azevedo
KEYWORDS:
Glycine max L., Nutrition, Bioregulators, Biostimulants, Bioactivators, Yield
JOURNAL NAME:
American Journal of Plant Sciences,
Vol.8 No.4,
March
30,
2017
ABSTRACT: In addition to essential macronutrients and
micronutrients, bioregulators, biostimulants or bioactivators are being
increasingly used on agricultural crops with important outcomes. Therefore,
improved knowledge on the functioning of these chemicals on plants is needed.
Based on the assumption that foliar fertilizers applied at specific times
promote soybean growth, development and yield, the aim of the present study was
to evaluate the biometric, biomass, physiological, nutritional and grain yield
parameters to increase knowledge about specific fertilizers applied alone or in
combination and at different stages of soybean growth and development. The
present study was performed in partnership between the Goiano Federal Institute
(Instituto Federal Goiano), Campus Rio Verde, state of Goiás (GO), Brazil, and
the company Tecno Nutricao Vegetal e Biotecnologia Ltda. A randomized block
experimental design was used with four replicates. The biometric, physiological, nutritional and yield
data were subjected to analysis of variance followed by Tukey’s test when
significant differences were found at p 0.05
using the SISVAR software. In the emergency and early use of Tonik combined
with Nodumax and PreventCoMo, in the vegetative phase, the Lumix combined with
Vivat or VivatMn in the reproductive stage of flowering, 2
application Tripper combined with VivatB at a dose of 500 ml·ha-1 and reproductive phase of grain filling, 2 application Apport at a dose
of 500 g·ha-1 gave the best results.