Influence of nano fertilizers on productivity and profitability of aerobic rice in Eastern dry zone of Karnataka

Abstract

A field experiment was conducted at Agronomy Field Unit, Zonal Agricultural Research Station, University of Agricultural Sciences, Gandhi Krishi Vigyan Kendra, Bengaluru, Karnataka, India during kharif season 2023 in Randomised Complete Block Design with thirteen treatments and replicated thrice. A field experiment was conducted to assess the effect of foliar application of nano urea, nano DAP and nano potash at tillering and panicle initiation stage on productivity and profitability of aerobic rice. The results revealed that the treatment T11 (100% RDF + nano urea, nano DAP and nano potash each @ 6 ml L-1) recorded significantly higher grain yield (5054 kg ha-1), straw yield (5453 kg ha-1), net returns (Rs. 65597 ha-1) and B:C ratio (2.27) followed by treatment T8 (100% RDF + nano urea, nano DAP and nano potash each @ 4 ml L-1). The nano fertilizers improves growth, yield, soil health and nutritional quality of the produce due to higher absorption rate, utilization efficiency and minimum losses.