Indian Journal of Weed Science

UGC CARE (Group 1)
  • Year: 2024
  • Volume: 56
  • Issue: 2

Effect of varied levels of Salvinia molesta vermicompost on soil fertility and crop productivity of rice under coastal conditions of Udupi, Karnataka

  • Author:
  • Gauthami Kayarga*, N.E. Naveen1, F.C. Rudragouda, H.S. Chaitanya, S.M. Jayaprakash
  • Total Page Count: 4
  • Published Online: Aug 22, 2024
  • Page Number: 204 to 207

Department of Agronomy, College of Agriculture, Shivamogga, Zonal Agricultural and Horticultural Research Station, Brahmavara, Udupi

1Keladi Shivappa Nayaka University of Agricultural and Horticultural Sciences, Shivamogga, Karnataka, 577412, India

Abstract

It was found that using Salvinia molesta vermicompost at a rate of 13.2 t/ha or Salvinia vermicompost with an additional 45:13:62 kg N:P:K/ha resulted in significantly improved growth parameters such as plant height (89.94 cm), number of tillers/m2 (520.24), and total dry matter production (77.52 g/plant) at harvest. Additionally, yield parameters like productive tillers/m2 (499.95), panicle length (21.86 cm), grain yield (5.23 t/ha), straw yield (6.66 t/ha), harvest index (0.44), and low chaff percentage were also positively impacted. The next best treatment was the application of 9.9 t/ha of Salvinia vermicompost along with 45:13:62 kg N:P:K/ha. Furthermore, significantly higher levels of available N (389.65 kg/ha) and K (225.42 kg/ha) in the soil were observed with the Salvinia vermicompost application. However, the application of 3.3 t/ha of Salvinia vermicompost with 45:13:62 kg N:P:K/ha resulted in the highest benefit-cost ratio of 2.50.

Keywords

Crop productivity, Rice, Salvinia molesta vermicompost, Soil fertility