NITROGEN MANAGEMENT OPTIONS FOR IRRIGATED AND RAIN-FED RICE (Oryza sativa L.) VARIETIES IN SUDAN SAVANNA OF NIGERIA
vii ABSTRACT Rice is one of the main staple food crops and its demand is rapidly increasing in West Africa, hence there is need to increase its production at lower production costs through adequate N management with appropriate varieties.Nitrogen (N) management is one of the key inputs in rice production, especially in the savanna soils which is usually associated with widespread N deficiency. The focus of this research was to ...
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