ESTIMATIVAS DAS CONDIÇÕES HÍDRICAS EM IPOJUCA, REGIÃO CANAVIEIRA DE PERNAMBUCO
2010
GEBER BARBOSA DE ALBUQUERQUE MOURA | GERSON QUIRINO BASTOS | PEDRO ROGÉRIO GIONGO | PABRÍCIO MARCOS OLIVEIRA LOPES | SÉRGIO RICARDO RODRIGUES DE MEDEIROS
Beginning with the observed rainfall data and the potential evapotranspiration for normal, dry and rainy years, the best period for the vegetable cultivation was evaluated for Ipojuca, Pernambuco, Brazil. The potential monthly evapotranspiration (ETP) data was computed using Hargreaves' method and transformed into ten-day averages. The sum total of rainfall over a ten day period, full evapotranspiration and half of the potential evapotranspiration data are used to characterize of the growth phase, along with the determination of the pre-humid, humid and post-humid periods. The results show that the best period for the initial growth phase in Ipojuca for dry years is from the 01st of March to the 06th of October spaning 223 days and with a total rainfall of 1414 mm. Results demonstrated that the best initial growth phase for sugar cane during normal years is from the 20th of February to the 06th of October, spaning 236 days and with a total rainfall of 1864 mm. And for the rainy years, the best period for the initial growth phase of sugar cane is from the 23th of January to the 20th of October, spanning a period of 267 days and with a total rainfall of 2578 mm.
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