Indian Journal of Agronomy
  • Year: 2016
  • Volume: 61
  • Issue: 2

Influence of establishment methods, irrigation water levels and weedmanagement practices on growth and yield of rice (Oryza sativa)

  • Author:
  • Shantappa Duttarganvi1,, R. Mahender Kumar2, B.K. Desai3, B.T. Pujari4, K. Tirupataiah5, B.G. Koppalkar6, M.R. Umesh7, M.K. Naik8, K. Yella Reddy9
  • Total Page Count: 5
  • Page Number: 174 to 178

1Research Associate, IIRR, Hyderabad, Talangana, 500 003

2Principal Scientist, IIRR, Hyderabad, Talangana, 500 003

3Professor, Department of Agronomy, University of Agricultural Sciences, Raichur, Karnataka, 584 104

4Dean, (Agriculture), University of Agricultural Sciences, Raichur, Karnataka, 584 104

5Additional Director, Dr MCR HRD Institute, Hyderabad, 500 169

6Professor and Head, Department of Agronomy, University of Agricultural Sciences, Raichur, Karnataka, 584 104

7Assistant Professor, Department of Plant Pathology, University of Agricultural Sciences, Raichur, Karnataka, 584 104

8Professor, Department of Plant Pathology, University of Agricultural Sciences, Raichur, Karnataka, 584 104

9Director, (Agriculture and Research), Water and Land Management Training and Research Institute (WALAMTARI), Hyderabad, Telangana, 5000 03

ICAR-Indian Institute of Rice Research, Hyderabad, Telangana, 500 003

*Corresponding author Email: shantud4@gmail.com

Online published on 8 September, 2016.

Abstract

A field experiment was conducted during rainy (kharif) and winter (rabi) seasons of of 2012–13 and 2013–14 at the Indian Institute of Rice Research (IIRR), Hyderabad, Telangana, in clay loam soils, to evaluate the influence of different establishment techniques, irrigation water levels and weed-management practices on productivity, growth and yield of rice (Oryza sativa L.). System of rice intensification (SRI) was significantly superior to conventional and mechanized transplanting for grain yield (6.10 and 6.47 t/ha), yield attributes like panicles/m2 (376 and 405), panicle weight (4.6 and 4.9 g), 1, 000-grains weight (17 and 18 g) and growth parameters like leaf area (2, 743.6 and 2, 820.5 cm2/hill) and effective tillers/m2 (470 and 482) during kharif and rabi respectively, in both the years. Alternate wetting and drying (AWD) and cono-weeding recorded significantly higher growth and yield parameters over the other irrigation and weed-management practices, respectively, due to profuse root growth and aerated condition.

Keywords

Alternate wetting and drying (AWD), Growth and yield attributes, Rice, Saturation, SRI, Yield