Características morfogênicas do capim-tamani irrigado sob doses de adubação nitrogenada.

Abstract: The objective of this study was to evaluate the effect of nitrogen fertilization on tamani-grass managed under cut. The experiment was carried out in the city of Fortaleza-CE, in the year 2017, in a randomized complete block design. The treatments consisted of increasing doses of 0; 100; 300; 600 and 1,200 kg N ha-1, being the experimental unit plot of 2.5 x 5 m, cultivated with tamani-grass. Leaf elongation rate and stem elongation rate behaved in a linear positive manner, with increments estimated to be 0.00141 and 0.00008643 cm tiller-1 to day-1, making 2.20380 and 3.8958 for the doses of 0 and 1200 kg N ha-1 respectively. The total senescence rate was not significant for the nitrogen doses, presenting 0.38 ± 0.18. The leaf life span responded in a linear negative fashion, with reductions estimated to be 0.00723 days. Nitrogen allowed for higher growth and forage biomass of the tamani-grass, handled under cut, without any increase of senescent material.

Bibliographic Details

Main Authors:	LOPES, B. K. M., VASCONCELOS, E. C. G., CÂNDIDO, M. J. D., LOPES, M. N., CONRADO, J. A. de A., OLIVEIRA, M. M., ALMEIDA, B. P. de, POMPEU, R. C. F. F.
Other Authors:	Bruna Kelly Monteiro Lopes, Universidade Federal do Ceará (UFC) - Fortaleza, CE, Brasil
Format:	Anais e Proceedings de eventos biblioteca
Language:	pt_BR por
Published:	2018-09-20
Subjects:	Efeito do nitrogênio, Taxa de alongamento foliar, Nutrição Vegetal, Gramínea Forrageira, Dose, Biomassa, Megathyrsus maximus, Nitrogen fertilizers, Brazil, Semiarid soils, Biomass production,
Online Access:	http://www.alice.cnptia.embrapa.br/alice/handle/doc/1096076
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