Row spacing, plant density, sowing and harvest times for sweet sorghum

Authors

DOI:

https://doi.org/10.5216/pat.v47i4.48585

Keywords:

Sorghum bicolor, plant spatial arrangement, planting density.

Abstract

Along with sugarcane, which is the main crop used for ethanol production, the sweet sorghum is a promising agronomic and industrial alternative for cultivation in water-stress regions. This study aimed at assessing the row spacing (0.70 m, 0.80 m and 0.90 m) and plant density (80,000 plants ha-1; 100,000 plants ha-1; 120,000 plants ha-1; and 140,000 plants ha-1) for the BRS 511 sorghum cultivar, combined with sowing and harvest times. A split-plot experimental design, in complete randomized blocks, with four replications, was used. The analyzed variables were plant height, stem diameter, shoot fresh and dry matter, broth volume and total soluble solids (ºBrix). The results showed isolated effects of plant density on plant height and stem diameter, as well as effects of row spacing on total fresh mass and broth volume. The most efficient productive effect for the sweet sorghum was observed in populations lower than 120,000 plants ha-1 and row spacing inferior to 0.80 m, associated with harvest at 120 days after sowing.

Downloads

Download data is not yet available.

Author Biographies

  • Josefa Maria Francieli da Silva, Federal University of Ceará

    MESTRE EM AGRONOMIA/FITOTECNIA

    ESPECIALISTA EM EDUCAÇÃO AMBIENTAL

  • Alek Sandro Dutra, Federal University of Ceará
    PROFESSOR DA POS-GRADUAÇÃO EM AGRONOMIA/FITOTECNIA DA UNIVERSIDADE FEDERAL DO CEARÁ
  • Felipe Thomaz da Camara, Universidade Federal do Cariri
    PROFESSOR DO AGRONOMIA DA UNIVERSIDADE FEDERAL DO CARIRI
  • Antônio Alves Pinto, Universidade Federal do Cariri
    ESTUDANTE DE AGRONOMIA DA UNIVERSIDADE FEDERAL DO CARIRI
  • Francisco Edson da Silva, Universidade Federal do Cariri
    ESTUDANTE DE AGRONOMIA DA UNIVERSIDADE FEDERAL DO CARIRI

Downloads

Published

2017-12-19

Issue

v. 47, n. 4, Oct./Dec. 2017

Section

Research Article

License

Authors will not be paid for published articles and must waive their copyright in favor of the PAT journal. On the other hand, they are solely responsible for the content of those articles, even if the Editor holds the right to adjust them to the norms of the journal. Authors are allowed to publish their articles simultaneously in their institutional repositories, as soon as the original publication at the PAT journal is mentioned.

How to Cite

DA SILVA, J. M. F. et al. Row spacing, plant density, sowing and harvest times for sweet sorghum. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics], v. 47, n. 4, p. 408–415, 19 Dec.2017.