Julianna Catonio da Silva, George do Nascimento Araújo Júnior, Adolpho Emanuel Quintela da Rocha, Thieres George Freire da Silva, Iêdo Peroba de Oliveira Teodoro, José Wanderson Silva dos Santos, Márcio Aurélio Lins dos Santos, Iêdo Teodoro, Gustavo Bastos Lyra, Ceres Duarte Guedes Cabral de Almeida, Alexsandro Claudio dos Santos Almeida
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A system with 25 drainage lysimeters was installed to estimate the daily and cumulative ET<sub>c</sub> and the <i>K</i><sub>c</sub> for the entire crop cycle. The ET<sub>c</sub> was partitioned into transpiration (<i>T</i>) and evaporation (<i>E</i>), and the basal crop coefficients (<i>K</i><sub>cb</sub>) and soil evaporation coefficients (<i>K</i><sub>e</sub>) were subsequently estimated. The daily and cumulative ET<sub>c</sub> were 3.04 mm day<sup>−1</sup> and 450.4 mm cycle<sup>−1</sup>, respectively, in S1 and 3.52 mm day<sup>−1</sup> and 440.1 mm cycle<sup>−1</sup>, respectively, in S2. Regardless of the season, <i>T</i> was the main water flux (74%–80% of the ET<sub>c</sub>). The mean values of <i>K</i><sub>c</sub> were similar for S1 (0.79) and S2 (0.75), and <i>K</i><sub>cb</sub> and <i>K</i><sub>e</sub> followed the same trend as <i>T</i> and <i>E</i>, respectively. The accumulated ET<sub>c</sub> and <i>K</i><sub>c</sub> of sesame cultivated in the coastal tablelands of Alagoas, Northeast Brazil, are similar for the rainy and dry seasons.</p>","PeriodicalId":14848,"journal":{"name":"Irrigation and Drainage","volume":"74 1","pages":"216-236"},"PeriodicalIF":1.6000,"publicationDate":"2024-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Water requirement and single and dual crop coefficients of sesame cultivated in the coastal tablelands of Brazil\",\"authors\":\"Julianna Catonio da Silva, George do Nascimento Araújo Júnior, Adolpho Emanuel Quintela da Rocha, Thieres George Freire da Silva, Iêdo Peroba de Oliveira Teodoro, José Wanderson Silva dos Santos, Márcio Aurélio Lins dos Santos, Iêdo Teodoro, Gustavo Bastos Lyra, Ceres Duarte Guedes Cabral de Almeida, Alexsandro Claudio dos Santos Almeida\",\"doi\":\"10.1002/ird.2988\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Sesame irrigation is essential in drought-prone regions. 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引用次数: 0
摘要
芝麻灌溉对干旱地区至关重要。然而，有关芝麻需水量的信息却很少。因此，本研究旨在确定巴西阿拉戈斯州沿海台地雨季（S1）和旱季（S2）的作物蒸散量（ETc）和芝麻作物系数（Kc）。2021 年至 2022 年期间，巴西阿拉戈斯州里约拉尔戈种植了 BRS Seda 栽培品种。该系统安装了 25 个排水溶样器，用于估算整个作物周期的每日和累积蒸散发量以及 Kc。蒸散发分为蒸腾（T）和蒸发（E）两部分，随后估算出作物基础系数（Kcb）和土壤蒸发系数（Ke）。在 S1，日蒸发量（ETc）和累积蒸发量（ETc）分别为 3.04 毫米/天-1 和 450.4 毫米/周-1；在 S2，日蒸发量（ETc）和累积蒸发量（ETc）分别为 3.52 毫米/天-1 和 440.1 毫米/周-1。无论哪个季节，T 都是主要的水通量（占蒸散发的 74%-80% ）。Kc 的平均值在 S1（0.79）和 S2（0.75）中相似，Kcb 和 Ke 分别与 T 和 E 的趋势相同。巴西东北部阿拉戈斯州沿海台地种植的芝麻在雨季和旱季的累积蒸散发和 Kc 相似。
Water requirement and single and dual crop coefficients of sesame cultivated in the coastal tablelands of Brazil
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.
期刊介绍：
Human intervention in the control of water for sustainable agricultural development involves the application of technology and management approaches to: (i) provide the appropriate quantities of water when it is needed by the crops, (ii) prevent salinisation and water-logging of the root zone, (iii) protect land from flooding, and (iv) maximise the beneficial use of water by appropriate allocation, conservation and reuse. All this has to be achieved within a framework of economic, social and environmental constraints. The Journal, therefore, covers a wide range of subjects, advancement in which, through high quality papers in the Journal, will make a significant contribution to the enormous task of satisfying the needs of the world’s ever-increasing population. The Journal also publishes book reviews.
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