Agricultural Science Digest
SCOPUS
  • Year: 2025
  • Volume: 45
  • Issue: 2

Effect of Integrated Nutrient Management Practices on Physiology and Yield of Improved Traditional Rice Variety (Black Kavuni)

  • Author:
  • A. Udhaya1, S. Radhamani1,*, G. Senthil Kumar1, V. Ravichandhran2, P. Janaki3, S. Manonmani4
  • Total Page Count: 7
  • Page Number: 215 to 221

1Department of Agronomy, Tamil Nadu Agricultural University, Coimbatore-641 003, Tamil Nadu, India

2Department of Crop Physiology, Tamil Nadu Agricultural University, Coimbatore-641 003, Tamil Nadu, India

3Nammazhvar Organic Farming Research Centre, Tamil Nadu Agricultural University, Coimbatore-641 003, Tamil Nadu, India

4Department of Rice, Centre for Plant Breeding and Genetics, Tamil Nadu Agricultural University, Coimbatore-641003, Tamil Nadu, India

*Corresponding Author: S. Radhamani, Department of Agronomy, Tamil Nadu Agricultural University, Coimbatore-641 003, Tamil Nadu, India, Email: subhamythili@yahoo.co.in

Online Published on 21 November, 2025.

Abstract

Increased demand for quality based rice and rice products motivate the farmers for producing the traditional rice varieties. To meet the demand, rice production need to be substantially increased with suitable nutrient management practices.

The field experiment was conducted during Early kar (2023) and Late samba (2023-24) seasons at Wetland farm, Department of Agronomy, TNAU, Coimbatorre. The experimental design consisted of twelve treatments laid out in Randomized Block Design with three replications. Based on N equivalent basis, required quantity of inorganic fertilizer, farmyard manure, vermicompost and poultry manure were applied to rice.

The results revealed that application of 50% RDN through inorganic fertilizer + 50% RDN through vermicompost + Foliar spray of 0.5% ZnSO4 + 1% FeSO4 at Tillering, PI and Flowering stage (T11) registered higher physiology, yield parameters and grain yield.

Keywords

Chlorophyll content, Improved kavuni, Yield parameters, Yield