En termes de production et de superficie, l'Inde occupe aujourd'hui la deuxi�me place parmi les pays producteurs de bl� dans le monde. La production mondiale totale de bl� est estim�e � 605,9 millions de tonnes pour 216,6 millions d'hectares en 2005-2006, ce qui repr�sente une contribution de 11,4 %. Le soufre est essentiel pour la synth�se des prot�ines, des vitamines et des acides amin�s essentiels contenant du soufre, et il est �galement associ� au m�tabolisme de l'azote. Le soufre am�liore � la fois le rendement et la qualit� des cultures. La carence en soufre dans le sol augmente avec l'intensification de l'agriculture. Les vari�t�s r�actives aux engrais ont acc�l�r� l'�puisement du soufre dans le sol, m�me � faible profondeur. L'utilisation continue d'engrais sans soufre a entra�n� une carence en soufre largement r�pandue dans les sols indiens et s'av�re plus b�n�fique dans les sols � texture l�g�re et � faible teneur en mati�re organique. Les informations sur l'effet du soufre sur le rendement, la qualit� et l'absorption des �l�ments nutritifs dans la culture du bl� sont limit�es. Compte tenu de ce qui pr�c�de, la pr�sente enqu�te a �t� men�e pour �tudier l'effet des niveaux de soufre sur les propri�t�s physico-chimiques du sol et les performances du bl� (Triticum aestivum L.).

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