NDLI: Balanço Hídrico E Estimativa Do Consumo Relativo De Água Da Cultura Da Cana-de-açúcar Na Região Noroeste Paulista¹

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Balanço Hídrico E Estimativa Do Consumo Relativo De Água Da Cultura Da Cana-de-açúcar Na Região Noroeste Paulista¹

Content Provider	Semantic Scholar
Author	Bispo, Regiane De Carvalho Hernandez, Fernando B. T. Teixeira, Antônio H. De C.
Copyright Year	2018
Abstract	BALANCO HIDRICO E ESTIMATIVA DO CONSUMO RELATIVO DE AGUA DA CULTURA DA CANA-DE-ACUCAR NA REGIAO NOROESTE PAULISTA¹ REGIANE DE CARVALHO BISPO 2 ; FERNANDO BRAZ TANGERINO HERNANDEZ 3 E ANTONIO HERIBERTO DE CASTRO TEIXEIRA 4 [1] Apoio financeiro da FAPESP Processo 2.009/52.467-4. 2 Doutoranda do Programa de Pos-Graduacao em Irrigacao e Drenagem , Universidade Estadual Paulista “Julio Mesquita Filho” - UNESP/FCA, Rua Jose Barbosa de Barros, 1780, Botucatu, SP. E-mail: regianecarvalhoks@gmail.com 3 Professor Titular, Departamento de Fitossanidade, Engenharia Rural e Solos, Universidade Estadual Paulista “Julio Mesquita Filho”- UNESP, Ilha Solteira, SP. E-mail: fbthtang@agr.feis.unesp.br 4 Pesquisador, Embrapa Monitoramento por Satelite, Campinas, SP. E-mail: heriberto.teixeira@embrapa.br 1 RESUMO O presente trabalho teve como objetivo determinar o balanco hidrico e estimar o consumo relativo de agua para a cultura da cana-de-acucar nas diferentes fases fenologica, para o municipio de Sud Mennucci, visando fornecer informacoes uteis aos estudos de zoneamentos agroclimaticos e definicao de epoca de menor risco para a producao dessa cultura. Os dados utilizados no estudo corresponderam ao periodo de 2012 a 2016, sendo calculados o balanco hidrico sequencial mensal e o balanco hidrico normal mensal, ambos utilizando a capacidade de armazenamento de agua disponivel no solo (CAD) de 60 mm. O Indice de Satisfacao das Necessidades de Agua para a cultura (ISNA), definido como a relacao entre a evapotranspiracao real e a evapotranspiracao maxima (ETr/ETm) foi utilizado como criterio na definicao das fases fenologicas favoravel para o cultivo. Os resultados obtidos indicam que, nas fases de perfilhamento e crescimento de colmos e nos meses entre julho e outubro sao os periodos mais criticos com relacao a deficiencia hidrica, considerando a colheita realizada em maio, necessitando de reposicao de agua nestes periodos para evitar decrescimo da produtividade. PALAVRAS-CHAVE : Evapotranspiracao, deficiencia hidrica, Saccharum officinarum. BISPO, R. C.; HERNANDEZ, F. B. T; TEIXEIRA, A. H. C. WATER BALANCE AND RELATIVE WATER CONSUMPTION OF SUGARCANE IN THE NORTHWESTERN REGION OF SAO PAULO 2 ABSTRACT The present work aims to determine the water balance and estimate the relative water consumption for sugarcane crop in the different phenological phases, in the municipality of Sud Mennucci, attempting to provide useful information to the agroclimatic zoning studies and to define the time of a lesser risk to production of this crop. The data used in the study corresponded to the period from 2012 to 2016, and both the monthly sequential water balance and the regular monthly water balance were calculated using 60 mm as soil water storage capacity (WSC). The Water Satisfaction Index for Culture (WSIC), defined as the relation between actual evapotranspiration and maximum evapotranspiration (ETr/ETm), was used as a criterion in the definition of the phenological phases favorable for cultivation. The results indicate that the tillering and stalks growth stages, and the months between July and October are the most critical periods in relation to the water deficit, considering the harvest in May, there is the need of water replacement in these periods to prevent a decrease in productivity. Keywords : evapotranspiration, water deficit, Saccharum officinarum .
Starting Page	94
Ending Page	101
Page Count	8
File Format	PDF HTM / HTML
DOI	10.15809/irriga.2017v1n1p94-101
Volume Number	1
Alternate Webpage(s)	http://www2.feis.unesp.br/irrigacao/pdf/bispo_hernandez_teixeira_2017_irriga.pdf
Alternate Webpage(s)	http://revistas.fca.unesp.br/index.php/irriga/article/download/2796/1702
Alternate Webpage(s)	https://doi.org/10.15809/irriga.2017v1n1p94-101
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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