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P-ISSN: 2349-8528, E-ISSN: 2321-4902   |   Impact Factor: GIF: 0.565 NAAS Rating: 5.31 NEW

International Journal of Chemical Studies

Vol. 5, Issue 4 (2017)
Studies on Nitrogen use efficiency in irrigated rice as influenced by various sources of Nitrogen


Author(s): Mood Chawan Joshna Devi, Anurag, K Surekha, RK Bajpai and Rahul Kumar

Abstract: Present investigation was carried out during kharif season of 2016 at the research farm of the ICAR - Indian Institute of Rice Research (IIRR) (formerly DRR), Hyderabad, Telangana state, entitled “ Studies on Nitrogen use efficiency in irrigated rice as influenced by various sources of Nitrogen ’. The experiment was laid out in randomized block design with sixteen treatments and three replications. The treatments comprised of T1: Control; T2 :50% RDN from Prilled urea (PU); T3 : 50% RDN from Neem coated urea (NCU); T4 : 50% RDN from Polymer coated urea (PCU); T5 : 50% RDN from Vermi compost (VC); T6 : 50% RDN from Rice straw (RS); T7 : 75% RDN from (PU); T8 : 75% RDN from (NCU); T9 : 75% RDN from (PCU); T10 : 75% RDN from (VC); T11 : 75% RDN from (RS); T12 : 100% RDN from (PU); T13 : 100% RDN from (NCU); T14 : 100% RDN from (PCU);T15 : 100% RDN from (VC); T16 : 100% RDN from (RS). The results revealed that the rice plant height was significantly influenced by nutrient management practices and the highest value (97.83 cm) was recorded under T13: 100% RDN from (NCU). Similarly, Yield attributing characters of rice were significantly affected by different treatments. The highest value for number of tillers m-2 (399), number of panicles m-2 (331), number of grains per panicle (128), Panicle length (20. cm) and filled grain percentage (97.45%) were found in treatment T13: 100% RDN from (NCU). Likewise, treatment T13: 100% RDN from (NCU) has also recorded maximum rice grain yield (41.0 q/ha) and straw yield (54.0q/ha) and was followed by T14 : 100% RDN from (PCU). Significantly lowest Grain and straw yield of rice were obtained under T1: control.

Pages: 2078-2081  |  482 Views  9 Downloads

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How to cite this article:
Mood Chawan Joshna Devi, Anurag, K Surekha, RK Bajpai, Rahul Kumar. Studies on Nitrogen use efficiency in irrigated rice as influenced by various sources of Nitrogen. Int J Chem Stud 2017;5(4):2078-2081.
International Journal of Chemical Studies