Vol. 11, Issue 8 (2022)

Author(s):
Rohit Rathore, Amreen Hasan, Arun Alfred David, Tarence Thomas and I Srinath Reddy

Abstract:
The experiment was laid down in randomized block design with three levels of conventional fertilizer (0% N, 50% N and 100% N) and foliar spray of nano urea fertilizer at three concentrations (0%,50% and 100%) respectively. The result shows that the application of different levels combination of conventional fertilizer and nano urea increased growth, yield of Maize and improved soil chemical properties. However some parameters of soil physical properties decreased. The results showed that the application of conventional fertilizer and nano urea in treatment T9 (N100, 100%P and K fertilizers + 2 sprays of Nano nitrogen (4ml/l) minimum bulk density 1.200 Mg m^-3 in 0-15 cm depth and 1.407 Mg m^-3 in 15-30 cm depth, particle density 2.359 Mg m^-3 in 0-15 cm depth and 2.669 Mg m^-3 in 15-30 cm depth, water holding capacity 59.09% in 0-15 cm depth and 49.57% 15-30 cm depth , pH 7.105 in 0-15 cm depth and 7.309 in 15-30 cm depth, EC 0.222 dS m^-1 in 0-15 cm depth and 0.148 dS m^-1 in 15-30 cm depth,% organic carbon 0.487 % in 0-15 cm depth and 0.387% in 15-30 cm depth, Available Nitrogen (kg ha^-1) 247.12 in 0-15 cm depth and 199.2 in 15-30 cm depth , Available Phosphorous (kg ha^-1) 39.36 in 0-15 cm depth and 31.63 in 15-30 cm depth, Available Potassium (kg ha^-1) 4.34 in 0-15 cm depth and 9.37 in 15-30 cm depth was found Significant.