Effects of nitrogen and calcium on the level of resistance of cassava to the mealybug P. Manihoti /Le Rü, Bruno Diangana, J.P. Beringar, N. MANIOC INSECTE NUISIBLE PHYTOPHAGE FERTILISATION DU SOL ENGRAIS MINERAL ENGRAIS AZOTE CALCIUM AZOTE SENSIBILITE RESISTANCE ANTIBIOTIQUE VARIETE PRATIQUE CULTURALE RECOMMANDATIONS 1994 text https://www.documentation.ird.fr/hor/fdi:010055403 fdi:010055403 Le Rü Bruno, Diangana J.P., Beringar N.. Effects of nitrogen and calcium on the level of resistance of cassava to the mealybug P. Manihoti. 1994, 15 (1), 87-96 EN CONGO