• As over mining of nutrients from soils due to multiple cropping and imbalanced fertilizers application has resulted in multiple nutrient deficiencies in soils globally. Hence, it is well known that all nutrients when applied through fertilizers result in higher crop yields as compared to the yields obtained from soils without use of any fertilizer.
• The crop cost benefit ratio of fertilizer application to the crop is 5-8 times over no fertilizers used in the crop. Thus, the crop fertilization plays an important role in crop yield increase which has been demonstrated over the years since long.

Hence, maintaining food production for the growing world population requires using new technology and intensifying production and management to grow more food on current cropland. Use of fertilizer is essential for accomplishing this.