RATE OF LEAF APPEARANCE AND ELONGATION OF XARAES GRASS UNDER DIFFERENT MANAGEMENT, FERTILIZATION LEVELS, REST PERIOD AND ANNUAL SEASONS

Authors

  • Fernando França da Cunha
  • Carlos Augusto Brasileiro de Alencar
  • Márcio Mota Ramos
  • Antônio Carlos Cóser
  • Carlos Eugênio Martins

DOI:

https://doi.org/10.13083/reveng.v18i4.151

Keywords:

aspersão em linha, Brachiaria brizantha, fertirrigação, morfogênese

Abstract

The objective of is study was to analyze the effects of different management, fertilizer level, rest period and annual seasons on the morphogenetic characteristic of the Xaraes grass. The study was done in a completely randomized split-split-plot design, with four replications, with plots in 2 x 2 factorial, two annual seasons (winter and summer) and two fertilizing managements (conventional and fertigation), four rest periods in the split-plots (21, 28, 35 and 42 days) and six fertilizer levels in the split-split-plots (0, 15, 39, 64, 83 and 100% of the dose of 700 N and 560 kg K2O). The morphogenesis characteristics were evaluated through the leaf appearance rate (LAR), leaf elongation rate (LER) and stem elongation rate (SER). The effect of the rest period on morphogenesis characteristics was dependent on the management, fertilizer level and the annual seasons. Morphogenesis characteristic means were higher during the summer season. The fertilization management did not affect the evaluated parameters and the increase of the fertilizer rate increased LAR and LER.

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Published

2010-07-30

How to Cite

Cunha, F. F. da, Alencar, C. A. B. de, Ramos, M. M., Cóser, A. C., & Martins, C. E. (2010). RATE OF LEAF APPEARANCE AND ELONGATION OF XARAES GRASS UNDER DIFFERENT MANAGEMENT, FERTILIZATION LEVELS, REST PERIOD AND ANNUAL SEASONS. Engineering in Agriculture, 18(4), 310–321. https://doi.org/10.13083/reveng.v18i4.151

Issue

Vol. 18 No. 4 (2010)

Section

.

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