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Rice is the most important agricultural crop which sustains more than 60% of the world's population as a dietary staple. Nano urea produced and patented by Indian Farmers Fertiliser Cooperative Limited IFFCO is developed to replace conventional urea and it can curtail the requirement by at least 50 percent and it will increase the nutrient use efficiency (NUE) by 80-90 percent. The main aim of the experiment was to assess the effect of nano fertilizers on the growth and yield of rice. The eight treatment combinations were T1- Nano urea (foliar) at active tillering & panicle initiation, T2 - Urea spray at active tillering & panicle initiation, T3 - Nano Urea followed by nano K (foliar) at active tillering & panicle initiation, T4- Nano K (foliar) at active tillering & panicle initiation, T5- Nano NPK (foliar) at active tillering & panicle initiation, T6 - 19:19:19 spray at active tillering & panicle initiation, T7- 90:45:45 kg N, P2O5 & K2O (KAU POP) and T8- Absolute control. The results showed that the application of nano urea @ 4ml/L as foliar topdressing at active tillering & panicle initiation recorded statistically similar results as that of 90:45:45 kg N, P2O5 & K2O (KAU POP) in terms of growth, yield and nutrient use efficiency in rice.
Kasim et al. (Sat,) studied this question.