Effects of potassium levels on growth and productivity of potato varieties in inner terai of Nepal

  • Urbashi Panthi Institute of Agriculture and Animal Science, Prithu Technical College, Tribhuvan University https://orcid.org/0000-0003-2751-2463
  • Sampurna Bartaula Institute of Agriculture and Animal Science, Prithu Technical College, Tribhuvan University
  • Anil Adhikari Institute of Agriculture and Animal Science, Prithu Technical College, Tribhuvan University
  • Kiran Timalsena Institute of Agriculture and Animal Science, Prithu Technical College, Tribhuvan University
  • Sagar Khanal Institute of Agriculture and Animal Science, Prithu Technical College, Tribhuvan University
  • Susan Subedi Institute of Agriculture and Animal Science, Campus of Live Sciences, Tribhuvan University
Keywords: effect, growth, margin, potassium, potato, tuber production

Abstract

Potassium is an essential nutrient for potato due to its direct effects on the growth, yield and quality of potato tubers. This study was carried out at Lamahi, Dang Nepal during winter season of 2018. Two potato variety (Local and Cardinal) and five levels of potassium (30, 40, 60, 80 and 100 kg K2O/ha) were evaluated in two factorial randomized block design with three replications. The application of potassium at 100 kg/ha produced significantly highest plant canopy, stem diameter and leaf length for the both varieties. The highest tuber number per plant (10.3 for Local and 17.6 for cardinal) and tuber weight (19.7 g for Local and 49 g for Cardinal) were obtained with the application of 100 kg K2O/ha. The highest gross margin was found with this level of potassium. Therefore, farmers should apply 100 kg K2O to potato to achieve maximum production and benefit. 

Downloads

Download data is not yet available.
Abstract
40
pdf
44
Published
2019-10-25
Section
Research Articles