2015
DOI: 10.1590/01000683rbcs20140797
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Eficiência De Métodos Analíticos Na Predição Da Disponibilidade De Fósforo Para Arroz Irrigado Em Solos Catarinenses

Abstract: rEsUMo os solos cultivados com arroz irrigado no Estado de santa catarina apresentam características mineralógicas e químicas distintas dos solos utilizados nos estudos de calibração do extrator Mehlich-1, para estimar a disponibilidade de fósforo do solo para as plantas. Desse modo, o objetivo deste trabalho foi avaliar a eficiência dos extratores Mehlich-1, Mehlich-3, resina em lâminas, olsen e Edta na predição da disponibilidade P para plantas de arroz cultivadas em sistema de alagamento em solos representa… Show more

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“…However, even with the significant differences found between the extractable P contents with M1 and M3 for both soils studied (Figure 1), a high degree of association was observed between these extraction solutions M1 and M3, with a positive correlation of 90.9%, supporting the results of Kabala et 2020) who, when relating the extractive capacity of the same solutions (M1 and M3), observed the same behavior in different types of soil. In other words, extractants M1 and M3 can be used to extract the P content in the soil (Díaz et al, 2023), since both solutions have similar extraction principles (acid dissolution), with M1 being a weak acid and M3 is a strong acid with complexing agents (Simonete et al, 2015). Thus, additional studies are needed in soils equally fertilized with LSM and with different textural classes within the limits of the Cerrado of Mato Grosso to elucidate the extractive capacity of these methods and M3) in extracting P.…”
Section: Discussionmentioning
confidence: 99%
“…However, even with the significant differences found between the extractable P contents with M1 and M3 for both soils studied (Figure 1), a high degree of association was observed between these extraction solutions M1 and M3, with a positive correlation of 90.9%, supporting the results of Kabala et 2020) who, when relating the extractive capacity of the same solutions (M1 and M3), observed the same behavior in different types of soil. In other words, extractants M1 and M3 can be used to extract the P content in the soil (Díaz et al, 2023), since both solutions have similar extraction principles (acid dissolution), with M1 being a weak acid and M3 is a strong acid with complexing agents (Simonete et al, 2015). Thus, additional studies are needed in soils equally fertilized with LSM and with different textural classes within the limits of the Cerrado of Mato Grosso to elucidate the extractive capacity of these methods and M3) in extracting P.…”
Section: Discussionmentioning
confidence: 99%