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Abstract : |
Nitrogen is the most common nutrient element, limiting crop production. Introduction and use of chemical N fertilizers has therefore led to a significant increase in crop yields. A major proportion of the nitrogenous fertilizers used in agriculture is applied to staple cereals like rice, wheat and maize. However, because of inherent economical and environmental implications of fertilizer N use, efforts have consistently been made to induce/enhance biological nitrogen fixation in cereals. Induction of nodulation has therefore been the main target of researchers over the past few years. This paper presents an evaluation of the achievements and prospects of nodulation in cereals (with particular reference to wheat and rice) as a means to decrease their dependence on fertilizer N., |
