Forage yield and morphogenesis of Brachiaria brizantha cv. Marandu under nitrogen levels

Authors

  • Newton Costa Embrapa Roraima

DOI:

https://doi.org/10.22256/pubvet.v10n10.731-735

Keywords:

dry matter, leaves, senescence, tillering

Abstract

The effect of nitrogen levels (0, 60, 120, 180 and 240 kg of N ha-1) on green dry matter (GDM) yield and morphogenetic and structural characteristics of Brachiaria brizantha cv. Marandu, was evaluated under field conditions. Nitrogen fertilization increased significantly (P<0.05) GDM yields, tillering, senescence and grass morphogenetic and structural characteristics. Maximum GDM yields, leaf elongation rates, leaf length, number of leaves plant-1 and leaf area index were obtained with the application of 221.5; 206.9; 188.6; 180.5 and 205.5 kg of N ha-1, respectively. The nitrogen efficiency utilization was inversely proportional to the increased nitrogen levels.

Published

2016-09-28

Issue

Section

Pastagem e forragicultura

How to Cite

Forage yield and morphogenesis of Brachiaria brizantha cv. Marandu under nitrogen levels. (2016). Pubvet, 10(10). https://doi.org/10.22256/pubvet.v10n10.731-735

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