Evapotranspiração Da Cultura Do Gergelim Irrigada Na Região Da Chapada Do Apodí-Rn

Pereira, Alécio Rodrigues; Azevedo, Pedro Vieira de; Lourenço, Elloise Rackel Costa; Saboya, Luciano Marcelo Falé; Bezerra, J. R. C.

doi:10.15809/irriga.2017v22n3p497-511

Cited by 2 publications

(1 citation statement)

References 13 publications

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“…Total values for percentage of consistent data (PCD) in crop seasons 1 and 2 were similar; therefore, energy balance could be determined in more than 70% of the collected data. This result is better than those found by Silva et al (2007a, b) for the passion fruit cycle, which presented 51.4% of consistent data, and they are also better than the results found by Pereira et al (2017) for sesame, which reached a percentage of 62.3% of consistent data for determination of ( 19) 1 3 energy balance. Although the atmosphere is more unstable during the day, there was an absence of type A errors in both growing seasons of acai, because when the most common condition occurred (Rn-G > 0 and ∆e > 0), the value of β was always higher than − 1 +| ε |.…”

Section: Resultscontrasting

confidence: 75%

Estimation of evapotranspiration and single and dual crop coefficients of acai palm in the Eastern Amazon (Brazil) using the Bowen ratio system

Sousa

Fernandes²,

Tavares

et al. 2021

Irrig Sci

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The acai palm (Euterpe oleracea Mart.) is a fruit from the Amazon that is originally found in flooded areas. Over recent years, its marketability has gained significant interest in Brazil and abroad because of its agronomic, nutritional and economic potential. However, there is a lack of technical-scientific information about crop water requirements for irrigation management during the reproductive phase of acai palm. Therefore, the aim of this research was to estimate the water requirements (crop evapotranspiration (ET c ), single (Kc) and dual (Kcb + Ke) crop coefficients) of acai palm in the Eastern Amazon (Brazil) using the Bowen ratio system. A micrometeorological tower was installed in the center of an experimental area to monitor ET c and meteorological variables. Phenological development was monitored during two growing seasons. Soil water evaporation was determined on a daily scale using weighing microlysimeters. Ke and Kcb values were calculated by the ratio of soil surface evaporation and transpiration to reference evapotranspiration (ET o ), respectively. Total water requirements of the acai palms were 1165 mm, with a daily average of 3.49 mm day −1 for the growing season. The average values of Kc, Ke and Kcb for the acai palm were 1.08; 0.21 and 0.84, respectively. The findings will assist the design of irrigation management protocols for acai trees that are better tailored to satisfy crop water requirements. This will allow improved water use efficiency, ensuring tree crop sustainability.

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Section: Resultscontrasting

confidence: 75%

Estimation of evapotranspiration and single and dual crop coefficients of acai palm in the Eastern Amazon (Brazil) using the Bowen ratio system

Sousa

Fernandes²,

Tavares

et al. 2021

Irrig Sci

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Water requirement and single and dual crop coefficients of sesame cultivated in the coastal tablelands of Brazil

da Silva,

do Nascimento Araújo Júnior,

da Rocha

et al. 2024

Irrigation and Drainage

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Sesame irrigation is essential in drought‐prone regions. However, information about the water needs of sesame is scarce. Therefore, the objective of this study was to determine crop evapotranspiration (ETc) and the sesame crop coefficient (Kc) during the rainy (S1) and dry (S2) seasons in the coastal tablelands of Alagoas, Brazil. The BRS Seda cultivar was grown in Rio Largo, Alagoas, Brazil, between 2021 and 2022. A system with 25 drainage lysimeters was installed to estimate the daily and cumulative ETc and the Kc for the entire crop cycle. The ETc was partitioned into transpiration (T) and evaporation (E), and the basal crop coefficients (Kcb) and soil evaporation coefficients (Ke) were subsequently estimated. The daily and cumulative ETc were 3.04 mm day−1 and 450.4 mm cycle−1, respectively, in S1 and 3.52 mm day−1 and 440.1 mm cycle−1, respectively, in S2. Regardless of the season, T was the main water flux (74%–80% of the ETc). The mean values of Kc were similar for S1 (0.79) and S2 (0.75), and Kcb and Ke followed the same trend as T and E, respectively. The accumulated ETc and Kc of sesame cultivated in the coastal tablelands of Alagoas, Northeast Brazil, are similar for the rainy and dry seasons.

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Evapotranspiração Da Cultura Do Gergelim Irrigada Na Região Da Chapada Do Apodí-Rn

Cited by 2 publications

References 13 publications

Estimation of evapotranspiration and single and dual crop coefficients of acai palm in the Eastern Amazon (Brazil) using the Bowen ratio system

Estimation of evapotranspiration and single and dual crop coefficients of acai palm in the Eastern Amazon (Brazil) using the Bowen ratio system

Water requirement and single and dual crop coefficients of sesame cultivated in the coastal tablelands of Brazil

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