Artículos de revistas
Sugarcane productivity using dssat modelin the southeast region of brazil
Produtividade de cana-de-açúcar (Saccharum officinarum l) para a região sudeste do brasil utilizando o modelo dssat
Fecha
2018-05-15Registro en:
IRRIGA, v. 23, n. 2, p. 314-333, 2018.
1808-3765
1413-7895
10.15809/irriga.2018v23n2p314-333
2-s2.0-85062660377
Autor
UFRPE/ Universidade Federal Rural de Pernambuco – Unidade Acadêmica de Garanhuns
Universidade Federal de Alagoas
Julia Brasileiro Vila Nova
Universidade Estadual Paulista (Unesp)
Institución
Resumen
This work used the DSSAT/CANEGRO (Decision Support System for Agrotechnology Transfer) simulation model to simulate the stem and sugar potential productivity of sugarcane cultivated in the Southeast (Bauru-SP and Jaú-SP) region, analyzing four varieties in different planting dates and two scenarios: rainfed and irrigated. The sugarcane varieties evaluated were RB86 7515, CTC 4, 7 and CTC CTC 20 (all in a cycle of 1.5 year). The results were submitted to variance analysis and the means were compared by Tukey test, at 5% probability. In rainfed conditions, the results showed that sugarcane planting should occur in September and November for Bauru, SP, and in September at Jaú, SP. In irrigated environment, there was no difference in stem productivity according to the planting date, for all evaluated regions and for all varieties. The stem and sugar productivities were always higher in irrigated environment when compared to the rainfed, in all locations and in all varieties. The simulation model generated good estimates of stem and sugar yields compared to experimental data from Jaú, SP.