Evaluation of Mehlich-3 as a Multi-Element Extractant of Micronutrients and Sulfur in a Soil–Ryegrass System Amended with Varying Biochar Rates from Two Feedstocks

• Published in: Land (Basel) Vol. 11; no. 11; p. 1979
• Main Authors: Antonangelo, Joao Arthur, Souza, Joao Luis Bigatao, Whitaker, Andrew, Arnall, Brian, Zhang, Hailin
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 01.11.2022
• Subjects: Acids; Agricultural wastes; alternative method; Availability; biochar; Boron; Calcium phosphates; Charcoal; Copper; Decomposition; Diethylenetriamine pentaacetic acid; DTPA; Environmental aspects; Evaluation; Experiments; Extractants; Extraction apparatus; Growth chambers; Iron; Laboratories; Magnesium; Manganese; Mehlich-3; Methods; Micronutrients; Moisture content; monocalcium phosphate; multi-element extractant; Nutrient availability; Nutrients; Organic carbon; Particle size; Phosphorus; Plant growth; Poultry; Raw materials; Ryegrasses; Soil chemistry; Soil pH; Soils; Sorbitol; Sulfur; Zinc; United States

Mehlich-3 (M-3) is used as a universal nutrient extractant due to its ability to simultaneously extract multiple elements. This study aimed to assess M-3 for the simultaneous determination of plant-available zinc (Zn), copper (Cu), iron (Fe), manganese (Mn), boron (B), and sulfate (SO4-S) in a soil...