Plant biostimulant on the production of biomass and yield grain of soybean / Bioestimulante vegetal e períodos de corte na produção de biomassa e rendimentos de grãos de soja

Plant biostimulant on the production of biomass and yield grain of soybean / Bioestimulante vegetal e períodos de corte na produção de biomassa e rendimentos de grãos de soja

Jeandson Silva Viana, João Paulo Ramos de Melo, Júlio César de Almeida Silva, Edilma Pereira Gonçalves, Juliana Joice Pereira Lima, Wallace Rodrigues Telino Júnior, Jeandson Silva Viana

With the growing interest in the search for food resources that may partially replace theuse of concentrates in animal feed, the cultivation of soybeans for the production of biomass and grainsresponds as an alternative to the livestock sector. Therefore, the objective of this research was to testdoses of phytostimulant and cut-off periods to evaluate the phytomass gain and soybean grains yield inthe Agreste Meridional region of the state of Pernambuco, Brazil. The experiment was carried out underfield conditions, in the city of Garanhuns, evaluating four doses of phytostimulant (F1=0.00, F2 = 3.75, F3= 7.50 and F4 = 11.25 mL kg-1 of seeds) and four cut-off periods (C1= no cut; C2 = 30 DAE (days aftersowing); C3 = 35 DAE and C4 = 40 DAE). The dry mass of the plants was increased when cutting wasdone later, the increment in this period was verified with the application of the higher doses ofphytostimulant, contributing to the elevation in height, number of nodes and green biomass. Thephytostimulant dose of 7.5 mL kg-1 of seed and the cut-off period of 40 days after emergence (DAE) arethe most indicated for forage, for providing greater biomass gain. Cutting at 30 DAE associated with thephytostimulant dose of 4.36 mL kg-1 of seeds provided a higher production of regrowth grains.

2019

Glycine max, phytostimulant, plant production

10.17648/diversitas-journal-v4i3.842

Diversitas Journal

Universidade Estadual de Alagoas

Social Sciences, Education, Science