Magnesium thermophosphates from the Maicuru complex as sources of P and Mg in maize production
Cesar de Castro,
Marcondes Lima da Costa,
Ruan Francisco Firmano
et al.
Abstract:The objective of this work was to investigate changes in soil chemical characteristics, phosphorous concentrations in maize leaves, and the agronomic efficiency (AE) of magnesium thermophosphates produced from rocks of the Maicuru complex in the Brazilian Amazon Basin, in comparison with triple superphosphate (TSP). The thermophosphates consisted of a mixture of raw material from apatite, dunite, and quartz sandstone from Maicuru, aiming to adjust the contents of P, Mg, and Si. The mixture was melted, ground, … Show more
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