Abstract:RESUMOForam estudadas as soluções tampão SMP original, SMP (1 + 1), Woodruf (1 + 2), acetato de cálcio 0,50 Ν -0,25 Ν e 0,125 Ν para ava liar a exigência de calcário de diversas amostras de solos.As amostras de solos foram submetidas à incubação com quantidades variáveis de carbonato de cálcio. Os dados obtidos permitiram estabelecer as curvas de neutralização e daí calcular a quantidade de carbonato de cálcio necessária para elevar o pH de cada solo a 6,40.Colocando-se as amostras de solos em contato com as d… Show more
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