Irrigation Depth and Potassium Doses Affect Fruit Yield and Quality of Figs ( Ficus carica L.)

Elias Ariel Moura (), Vander Mendonça, Vladimir Batista Figueirêdo, Luana Mendes Oliveira, Marlenildo Ferreira Melo, Toni Halan Silva Irineu, Alex Danilo Monte Andrade, Edvan Alves Chagas, Pollyana Cardoso Chagas, Enoch Souza Ferreira, Luciana Freitas Medeiros Mendonça and Francisco Romário Andrade Figueiredo
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Elias Ariel Moura: Departamento de Fitotecnia, Universidade Federal Rural do Semi-Árido, Mossoró 59625-900, RN, Brazil
Vander Mendonça: Departamento de Fitotecnia, Universidade Federal Rural do Semi-Árido, Mossoró 59625-900, RN, Brazil
Vladimir Batista Figueirêdo: Departamento de Fitotecnia, Universidade Federal Rural do Semi-Árido, Mossoró 59625-900, RN, Brazil
Luana Mendes Oliveira: Departamento de Fitotecnia, Universidade Federal Rural do Semi-Árido, Mossoró 59625-900, RN, Brazil
Marlenildo Ferreira Melo: Departamento de Fitotecnia, Universidade Federal Rural do Semi-Árido, Mossoró 59625-900, RN, Brazil
Toni Halan Silva Irineu: Departamento de Fitotecnia, Universidade Federal Rural do Semi-Árido, Mossoró 59625-900, RN, Brazil
Alex Danilo Monte Andrade: Departamento de Fitotecnia, Universidade Federal Rural do Semi-Árido, Mossoró 59625-900, RN, Brazil
Edvan Alves Chagas: Departamento de Produção Vegetal, Empresa Brasileira de Pesquisa Agropecuária, Boa Vista 69301-970, RR, Brazil
Pollyana Cardoso Chagas: Departamento de Produção Vegetal, Universidade Federal de Roraima, Boa Vista 69310-000, RR, Brazil
Enoch Souza Ferreira: Departamento de Fitotecnia, Universidade Federal Rural do Semi-Árido, Mossoró 59625-900, RN, Brazil
Luciana Freitas Medeiros Mendonça: Departamento de Fitotecnia, Universidade Federal de Campina Grande, Pombal 58840-000, PB, Brazil
Francisco Romário Andrade Figueiredo: Departamento de Fitotecnia, Universidade Federal Rural do Semi-Árido, Mossoró 59625-900, RN, Brazil

Agriculture, 2023, vol. 13, issue 3, 1-16

Abstract: The need to diversify agricultural production has fostered the cultivation of several crops under environmental conditions atypical to their origin, justifying the extreme importance of studies on the agricultural management of crops in semiarid regions. In this context, this study aimed to evaluate the effects of irrigation depth and potassium doses on fig quality under semiarid conditions. The experiment was conducted in a 4 × 4 split-split-plot design, in randomized block design, with three replicates. The plots corresponded to four irrigation levels (50%, 75%, 100%, and 125% ETc), the subplots consisted of four potassium doses (0, 60, 120, and 240 g K 2 O plant −1 ), and the sub-subplot corresponded to the crop years (2018/19 and 2019/20). Results showed that water deficit reduced fig productivity, and the irrigation levels equal to or greater than 100% ETc performed cumulatively throughout the growing cycles. Therefore, irrigation depths from 85.19% to 95.16% ETc are recommended for greater water-use efficiency and fruit quality. Furthermore, potassium fertilization mitigated water stress in fig plants, allowing for reduced irrigation levels, especially in the second year, without compromising fruit traits.

Keywords: crop evapotranspiration; mineral fertilization; organoleptic qualities; semiarid conditions; water deficit (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2023
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