2015
DOI: 10.1590/1983-40632015v4537090
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Enxofre elementar ou sulfato de cálcio para remediação de solos salino-sódicos?

Abstract: RESUMO A recuperação de solos com elevada salinidade e alcalinidade requer a utilização de produtos que promovam a redução do pH e diminuam os teores de Na trocável, para melhorar a sua fertilidade. Objetivou-se avaliar o efeito do sulfato de cálcio e do enxofre elementar sobre os atributos químicos de um solo com altos teores de sais solúveis e Na trocável. Dois experimentos foram conduzidos em casa-de-vegetação, utilizando-se amostras de um Neossolo Flúvico sódico sálico de textura franco-arenosa. No primeir… Show more

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Cited by 10 publications
(13 citation statements)
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“…The association of the application gypsum and organic matter has great power to reduce soil sodicity, and the efficiency is also related to the time of application (Sousa et al, 2014). Among the functions of gypsum, the most important is to increase the soluble calcium content to displace sodium to the soil solution (Tavares Filho et al, 2012;Sousa et al, 2014;Araujo et al, 2015), facilitating the leaching of this monovalent cation.…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…The association of the application gypsum and organic matter has great power to reduce soil sodicity, and the efficiency is also related to the time of application (Sousa et al, 2014). Among the functions of gypsum, the most important is to increase the soluble calcium content to displace sodium to the soil solution (Tavares Filho et al, 2012;Sousa et al, 2014;Araujo et al, 2015), facilitating the leaching of this monovalent cation.…”
Section: Resultsmentioning
confidence: 99%
“…To reclaim soils degraded by salts, the fundamental techniques are leaching and drainage of the soil (Miranda et al, 2011;Tavares Filho et al, 2012), which can be enhanced with the use of chemical amendments. Leaching and drainage reduce salinity through the solubilization and leaching of salts, while the corrective reduces sodicity by the chemical action of mineral and organic sources (Gill et al, 2008;Sá et al, 2013;Sousa et al, 2014;Araujo et al, 2015). Meng et al (2019) recommend the annual application of bovine manure due to its action of reducing pH and electrical conductivity, increasing organic matter content and improving soil structural properties, retention, water infiltration and aggregation.…”
Section: Introductionmentioning
confidence: 99%
“…Água vol. 15 n. 5, e2537 -Taubaté 2020 which can be confirmed by the increase in the solubilization of ions, such as Ca 2+ and Mg 2+ , notably by the high contents of these nutrients found in the cladodes (Giordano and Raven, 2014;Araujo et al, 2015). The low contents of Zn in the cladodes may have occurred due to the greater supply of organic matter resulting from the increase of weed and consequent adsorption of this nutrient to the organic fraction or to Fe and Al oxides in the soil matrix (Smanhotto et al, 2010).…”
mentioning
confidence: 88%
“…In spite of the adequate climatic conditions for passion fruit production in the Brazilian Northeast, the region is the most compromised in the country by salinity issues, a phenomenon that affects an average of 60 million hectares of irrigated area in the world, and entails severe damages to agricultural production [9]. In the Northeast, the accumulation of ions in the soil is favored by the edaphoclimatic conditions, conferring it a saline character [10]. In this manner, the quality of the irrigation water, in the main passion fruit cultivation areas of the semiarid region is, in most cases, originated from superficial and subterraneous water springs that present electrical conductivities superior to 1.5 dS m -1 [11].…”
Section: Introductionmentioning
confidence: 99%