Data/hora: 15/06/2024 02:06:40

Provedor de dados: | 70
País: | Brazil
Título: | Weather variables, water balance, growth, and agro industrial yield of sugarcane
Autores: | TEODORO,IÊDO; DANTAS NETO,JOSÉ; HOLANDA,LUCAS A. DE; SAMPAIO NETO,GIVALDO D.; SOUZA,JOSÉ L. DE; BARBOSA,GERALDO V. DE S.; LYRA,GUILHERME B.
Data: | 2015-02-01
Ano: | 2015
Palavras-chave: | Air temperature; Rain; Evapotranspiration; Canopy height.
Resumo: | The objective of this study was to evaluate the meteorological variables, water deficiency, growth, and agro-industrial yield of sugarcane varieties: RB72454, RB863129, RB867515, RB92579, RB93509, RB931003, RB951541, and RB971755, in rainfed crop in two harvests in the Rio Largo-AL region. The meteorological variables were obtained in an automatic station and water balance was done by Thornthwaite &amp; Mather method. During the study period, the air temperature ranged from 16.6 to 35.9 ºC. In the first production cycle rained 1,806 mm and the crop evapotranspiration was 1,775 mm. In the second cycle, the rainfall totaled 1,632 mm and the crop evapotranspiration was 1,290 mm. The average water excess of two production cycles was 689 mm and the water deficit totaled 665 mm. The average agricultural productivity in the plant was 86.8 t ha-1, in the first ratoon was 75.2 t ha-1 and the agro-industrial yield average was 12.9 and 10.9 tons of sugar per hectare in the plant and first ratoon, respectively. The air temperature was not limiting to the growth of sugarcane and the rainfall was higher than the crop evapotranspiration, but due to poor distribution of the rains there was water deficit. The most productive varieties were RB93509, RB92579, and RB863129.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162015000100076
Editor: | Associação Brasileira de Engenharia Agrícola
Relação: | 10.1590/1809-4430-Eng.Agric.v35n1p76-88/2015
Formato: | text/html
Fonte: | Engenharia Agrícola  v.35 n.1 2015
Fonte: | info:eu-repo/semantics/openAccess