2017
DOI: 10.7127/rbai.v11n300560
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SALINIDADE E pH DE UM ARGISSOLO IRRIGADO COM ÁGUA SALINA SOB ESTRATÉGIAS DE MANEJO

Abstract: RESUMOO objetivo deste estudo foi investigar a salinidade (CE e ) e o pH de um Argissolo cultivado com melão sob estratégias de manejo de água salina. O estudo consistiu de dois experimentos conduzidos na fazenda Pedra Preta, Mossoró, RN. Nos experimentos I (cv. Sancho) e II (cv. Sancho e Medellín), as águas de baixa e de alta salinidade (CE a = 0,5 e 4,3 dS m -1 , respectivamente) foram utilizadas na irrigação do melão (Cucumis melo L.) durante todo o ciclo (testemunhas) e, sequencialmente, em intervalos defi… Show more

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Cited by 11 publications
(13 citation statements)
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“…Alternatively, irrigated water can be pumped at low costs from shallow wells in the Jandaíra limestone sediment, located on the north shore of the Rio Grande do Norte State and on the northeast of the Ceará State (VASCONCELOS; TEIXEIRA; ALVES NETO, 2010); however, it is considered brackish water and possesses a high salt concentration. The lower cost of pumping encourages the use of brackish water in this region, which can lead to degradation of vast areas of soil through salinization (MEDEIROS et al, 2017).…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…Alternatively, irrigated water can be pumped at low costs from shallow wells in the Jandaíra limestone sediment, located on the north shore of the Rio Grande do Norte State and on the northeast of the Ceará State (VASCONCELOS; TEIXEIRA; ALVES NETO, 2010); however, it is considered brackish water and possesses a high salt concentration. The lower cost of pumping encourages the use of brackish water in this region, which can lead to degradation of vast areas of soil through salinization (MEDEIROS et al, 2017).…”
Section: Introductionmentioning
confidence: 99%
“…Besides avoiding deleterious effects of high salinity on the plants and soil, such a management strategy could save fresh water and increase the availability of other water resources for agricultural use. Therefore, research on the rational use of these brackish waters becomes essential, as their uncontrolled use may increase the risk of soil salinization (DIAS et al, 2007;DIAS et al, 2011;TURHAN et al, 2014), especially in regions of high evapotranspiration rates and low rainfall (MEDEIROS et al, 2017).…”
Section: Introductionmentioning
confidence: 99%
“…Thus, the use of saline Waters for irrigation for plant production is a challenge that has been overcome in different parts of the world through the adoption of adequate practices of culture handling of soil and water (Medeiros et al, 2017), amongst them, we highlight the use of plants tolerant to salinity and sodicity (Brito et al, 2015). For Pivetta et al (2012), the success of production of certain culture starts with the choice of a cultivar adapted to the region conditions, thus, studies that assess the agronomic development of culture when subject to the environment conditions of cultivation place are necessary.…”
Section: Introductionmentioning
confidence: 99%
“…O uso contínuo de água salina na irrigação proporciona o acúmulo de sais na camada superficial do solo, e esse acúmulo é proporcional à concentração de sais da água (MEDEIROS et al, 2017). Dessa maneira, podemos sugerir que a água de 5,1 dS m -1 promoveu o acumulo de sais no solo, e isso prejudicou mais uns genótipos de feijão-caupi do que outros, como observado nas taxas de transpiração e de fotossíntese.…”
Section: Resultsunclassified
“…Entretanto, este recurso tem se tornado cada vez mais limitante, especialmente nessa região e, portanto, o manejo da irrigação com águas de alta concentração salina tem sido bastante utilizado (SÁ et al, 2015;MEDEIROS et al, 2017). Para tanto, a depender da cultura e/ou do genótipo utilizado pode haver grandes perdas da produção, além da qualidade desta (BRITO et al, 2016;MEDEIROS et al, 2017), a exemplo do feijão-caupi, considerada uma cultura moderadamente tolerante à salinidade, tolerando condutividade elétrica da água de até 3,3 dS m -1 , a partir da qual se verifica queda na produtividade (AYERS; WESTCOT, 1999).…”
Section: Introductionunclassified