Ce livre est une tude des r sultats obtenus en 1863 gr ce l'utilisation d'engrais chimiques dans l'agriculture. L'auteur, Georges Ville, a men des exp riences rigoureuses pour d terminer l'impact des engrais chimiques sur les r coltes. Ce livre sera appr ci par les agriculteurs, les scientifiques et tous ceux qui s'int ressent l'innovation dans l'agriculture.
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