International Journal of Plant & Soil Science

The study entitled, “Influence of nano nitrogen and phosphorus fertilizer on yield and nutrient content of maize (Zea mays L.)” was undertaken by conducting a laboratory experiment of synthesis and characterization of nitrogen and phosphorus nano-fertilizer and a field experiment at Regional Research Station, Anand Agricultural University, Anand (Gujarat) during summer and kharif seasons of the year 2021. The field experiment was laid out in Randomized Block Design comprising fourteen treatments of T1[Control(No NPK)], T2[100% RDF (150 N-60 P-0 K kg ha-¹)], T3[75% RDF + Nano N and P through foliar application (1000 ppm)], T4[75% RDF + Nano N and P through foliar application (2000 ppm)], T5[75% RDF + Nano N and P through foliar application (3000 ppm)], T6[50% RDF + Nano N and P through foliar application (1000 ppm)], T7[50% RDF + Nano N and P through foliar application (2000 ppm)], T8[50 % RDF + Nano N and P through foliar application (3000 ppm)], T9 [25% RDF + Nano N and P through foliar application (1000 ppm)] and T10[25% RDF.

+ Nano N and P through foliar application (2000 ppm)], T11[25% RDF + Nano N and P through foliar application (3000 ppm)], T12[ Seed treatment Nano N and P + Nano N and P through foliar application (1000 ppm)], T13[ Seed treatment Nano N and P + Nano N and P through foliar application (2000 ppm)], T14[ Seed treatment Nano N and P + Nano N and P through foliar application (3000 ppm)]. In case of seed treatment with nitrogen and phosphorus NPs, seeds were soaked in nitrogen and phosphorus NPs suspension of 1000 ppm for 2 hours. The foliar application was made during crop growth period with three sprays at 15, 30 and 60 DAS of the crop. The treatments were tested against the control. Signficantly higher grain yield, straw yield, nitrogen and phosphorus content in maize was recorded was achieved under application of T4- 75% RDF + Nano N and P through foliar application (2000 ppm) during both seasons.