Affiliation:
1. Pandit Jawaharlal Nehru College of Agriculture and Research Institute, Karaikal, U. T. of Puducherry, India
Abstract
A field experiment was conducted at Pandit Jawaharlal Nehru College of Agriculture and Research Institute, Karaikal to study the effect of nitrogen levels and liquid nano urea application on the growth and yield of rice (Oryza sativa L.) during samba 2021 (September 2021 to January 2022) under puddled transplanted condition, involving fourteen treatments in a randomized block design (RBD) replicated thrice. The experiment involved a combination of four levels of nitrogen (0, 50, 75 and 100 % recommended dose of N) with three methods of liquid nano urea application (seed treatment, root dipping and foliar spraying) along with recommended dose of fertilizers and control. The results revealed that the application of 75 % recommended N + seed treatment with liquid nano urea resulted in the highest values for plant height, leaf area index, leaf area duration, dry matter production and number of tillers hill-1 followed by application of 100 % recommended N + seed treatment with liquid nano urea. Application of 75 % recommended N + seed treatment with liquid nano urea increased the grain yield by 14.8 and 84.3 % and straw yield by 6.5 and 76.4 % over recommended NPK and control, respectively.
Publisher
Association of Rice Research Workers
Reference32 articles.
1. Algym AJK and Alasady MHS (2020). Effect of the method and level of adding NPK nanoparticles and mineral fertilizers on the growth and yield of yellow corn and the content of mineral nutrient of some plant parts. Plant Archives 20(1): 38-43
2. Anil K (2013). Response of aerobic rice (Oryza sativa) to nitrogen management. M. Sc. (Ag) Thesis, Acharya N. G. Ranga Agricultural University, Hyderabad, India
3. Azarpour E, Moraditochaee M and Bozorgi HR (2014). Effect of nitrogen fertilizer management on growth analysis of rice cultivars. International Journal of Biosciences 4(5): 35-47
4. Baboo P (2021). Nano Urea the Philosophy of Future. National Fertilizers Ltd. India
5. Benzon HRL, Rubenecia MRU, Jr VUU and Lee SC (2015). Nano-Fertilizer Affects the Growth, Development and Chemical Properties of Rice. International Journal of Agronomy and Agricultural Research, 7(1): 105-117