Response of Some New Rice Genotypes to Foliar Application of Nano-N Fertilizer

Two field experiments were conducted at the Experiment and Research Center, Fac. Agric., Moshtohor, Benha Univ., Qalubia Governorate, Egypt, in the summer seasons 2021 and 2022 to study the performance of seven genotypes of rice under three levels of nano-N spraying on growth, yield and its attributes. The most important results obtained from this study can be summarized as follows: The results of the study revealed that the maximum highest No. tillers plant -1 (23.26 tiller), No. spikes plant -1 (19.98 panicle), panicle length (25.41 cm), panicle weight (4.39 g), 1000-grain weight (29.11 g) and grain yield plant -1 (59.48 g) obtained by spraying with 800 ml fed -1 concentration treatment, while, spraying with zero and 400 ml fed -1 concentration treatments were decreased No. days to 50% flowering in the combined analyses. Rice