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Efeito do fosfato de rocha na produção de sorgo e no solo

Efeito do fosfato de rocha na produção de sorgo e no solo

Jacques Sawadogo

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Editorial:
KS OmniScriptum Publishing
Año de edición:
2025
Materia
Química
ISBN:
9786208901912
64,05 €
IVA incluido
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Sobre IBD

Os solos do Burkina Faso carecem de fósforo. A utilização de fosfato de rocha local finamente moído poderia melhorar o teor de fósforo do solo. Consequentemente, a solubilidade destes fosfatos poderia ser corrigida através de processos de calcinação e acidulação. O objetivo deste estudo foi avaliar a eficácia agronómica do Fosfato Natural Calcinado (CNP) e do Fosfato Natural Acidulado (ANP) no desempenho do sorgo, bem como os seus efeitos nas propriedades físicas e químicas do solo. Foi efectuado um ensaio utilizando um esquema de blocos Fisher completamente aleatório com 13 tratamentos em três repetições. Os resultados mostraram que a formulação única de PNC e as suas combinações com TSP produziram melhores rendimentos. Finalmente, os resultados mostraram que, independentemente do tipo de fósforo utilizado, tanto na floração como na colheita, o teor de fósforo assimilável do solo era superior ao da testemunha. Os fosfatos naturais poderiam assim constituir uma alternativa e uma fonte importante de fósforo para a produção vegetal no Burkina Faso.

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