Evaluation of Mehlich-1 and Mehlich-3 extraction procedures for plant nutrients in acid mineral soils of Florida^*

Relation between various soil phosphorus extraction methods and sorption parameters in calcareous soils with different texture

“…Olsen extractable-P (P Ols ) was determined by shaking 1.0 g soil sample with 20 mL of 0.5 mol L −1 sodium bicarbonate solution (pH 8.5) for 10 min (Olsen and Sommers, 1982). Mehlich-3-P (P M3 ) was determined at a 1:8 soil-to-solution ratio (Mylavarapu et al, 2002) of Mehlich-3 extracting reagent (0.2 M CH 3 COOH + 0.25 M NH4NO 3 + 0.015 M NH 4 F + 0.13 M HNO 3 + 0.001 M EDTA (Mehlich, 1984)). After filtration through Whatman No.…”

Distribution variability of total and extractable zinc in cultivated acid soils of India and their relationship with some selected soil properties

“…Gartley et al (2002) compared Mehlich 1, Mehlich 3 and 0.1 M HCl for their Zn extractable capacity from soil and found best fits for each extractant combination as indicated by high R 2 value. Mylavarapu et al (2002) reported that both Mehlich 1 and Mehlich 3 extraction procedures can be effectively implemented for extraction of Zn from the acidic, mineral soils of Florida. Thus it can be inferred that all the extractants used for this investigation are useful for the extractions of Zn in acid soils.…”

Boron extraction and vertical mobility in Paraná State oxisol, Brazil

“…However, Hot Water was the method that extracted most B from the soil, compared to the other extractors at these depths. Differences in extractor capacity are reflected in the extractor composition and soil-extractor interaction (Bataglia & Raij, 1990;Abreu et al, 1994Abreu et al, , 1997Rosolem et al, 2008, Mylavarapu et al, 2002, as influenced by the B-soil interaction (Rosolem & Biscaro, 2007;Soares et al, 2008).…”