Effect of Nitrate of Potassium and Calcium on Grain Filling and Yield of Hybrid Rice


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Authors

  • S. K. Tripathy
  • S. Mohapatra
  • A. K. Mohanty
  • N. Panigrahy
  • S. Lenka
  • G. S. Panda
  • B. R. Nayak

Keywords:

Foliar spray of Calcium nitrate, Potassium nitrate, rice yield, economics

Abstract

A field experiment was conducted during kharif 2012 and 2013 at Seed Research Farm, Gambharipali to evaluate the effect of nitrate and its counter ions applied as post-flowering foliar spray on performance of ‘hybrid rice’ (Oryza sativa L.). Foliar application of
0.406% Ca (NO3)2 followed by 0.5% KNO3 during 50% flowering stages increased the yield attributes resulting higher grain yield. No3- and its counter ions both K+ and Ca 2+,gave beneficial effect in grain filling and yield of rice. It was found that No3- in combination with Ca2+ gave higher grain filling and yield than No3 with K+. Foliar spray of Ca (No3)2 resulted in the highest grain yield (6.54 t/ha), net return (Rs.109112/ha) and benefit cost ratio (2.47). Among the hybrid variety ‘Arize-dhani’ recorded higher yield than ‘Arize-prima ‘(5.35 t/ha).

Author Biographies

  • S. K. Tripathy
    Seed Research Farm (Odisha University of Agriculture and Technlogy), Gambharipali, Bargarh-768025, Odisha
  • S. Mohapatra
    Seed Research Farm (Odisha University of Agriculture and Technlogy), Gambharipali, Bargarh-768025, Odisha
  • A. K. Mohanty
    Seed Research Farm (Odisha University of Agriculture and Technlogy), Gambharipali, Bargarh-768025, Odisha
  • N. Panigrahy
    Seed Research Farm (Odisha University of Agriculture and Technlogy), Gambharipali, Bargarh-768025, Odisha
  • S. Lenka
    Seed Research Farm (Odisha University of Agriculture and Technlogy), Gambharipali, Bargarh-768025, Odisha
  • G. S. Panda
    Seed Research Farm (Odisha University of Agriculture and Technlogy), Gambharipali, Bargarh-768025, Odisha
  • B. R. Nayak
    Seed Research Farm (Odisha University of Agriculture and Technlogy), Gambharipali, Bargarh-768025, Odisha

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Submitted

2018-08-13

Published

2018-08-14

Issue

Vol. 31 No. 1 (2018)

Section

Articles

License

Submission of a manuscript implies that when the manuscript is accepted for publication, the authors agree to automatic transfer of the copyright to the publisher. The Indian Association of Hill Farming (IAHF), as the publisher, has the right to enter into any agreement with any organization in India or abroad engaged in reprography, photocopying, storage and dissemination of information contained in these journals. The IAHF has no objection in using the material, provided the information is being utilized for academic purpose but not for commercial use. Due credit line should be given to IAHF where information will be utilized.

How to Cite

Tripathy, S. K., Mohapatra, S., Mohanty, A. K., Panigrahy, N., Lenka, S., Panda, G. S., & Nayak, B. R. (2018). Effect of Nitrate of Potassium and Calcium on Grain Filling and Yield of Hybrid Rice. Indian Journal of Hill Farming, 31(1). https://epubs.icar.org.in/index.php/IJHF/article/view/82332