Effects of potassium application on yield attributes, yield and grain quality of lentil in terrace soil of Joydebpur

  • MA Quddus Senior Scientific Officer, Soil and Water Management Section, HRC, Bangladesh Agricultural Research Institute (BARI), Gazipur
  • MA Hossain Chief Scientific Officer, Soil Science Division, BARI, Gazipur
  • HM Naser Principal Scientific Officer, Soil Science Division, BARI, Gazipur
  • S Aktar Scientific Officer, Pulses Research Sub-Station, BARI, Gazipur, Bangladesh
Keywords: Potassium, lentil yield, nodulation, nutrient content, terrace soil

Abstract

An experiment was conducted in the research field of Pulses Research Sub-Station, BARI, Gazipur during two consecutive years of 2015-16 and 2016-17 to determine the suitable dose of potassium for achieving higher yield attributes, nodulation, nutrient concentration and yield maximization of lentil. There were 5 treatments viz. T1 = Control, T2 = 30 kg K ha-1, T3= 40 kg K ha-1, T4= 50 kg K ha-1 and T5= 60 kg K ha-1 along with the blanket dose of fertilizers of N, P, S, Zn and B @ 15, 20, 10, 2 and 1.5 kg ha-1, respectively for all treatments. The experiment was laid out in randomized complete block design (RCBD) with three replications. Results revealed that the highest seed yield (1092 kg ha-1) of lentil (mean of two years) was found in T4 followed by T5 treatment and the lowest (736 kg ha-1) was noted in K control (T1) treatment. The highest % yield increase over control (48.3%) was recorded from T4 treatment. The maximum nodulation was found in T5 followed by T4 treatment. The highest protein (26.9%), N, P, K, S, Zn and B concentrations of lentil seed were recorded in T4 treatment. Therefore, the results suggest that the appliction of 50 kg K ha-1 along with N15P20S10Zn2B1.5 kg ha-1 are optimum for achieving higher yield potential of lentil in terrace soils of Bangladesh.

Bangladesh J. Agril. Res. 44(4): 599-607, December 2019

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Abstract
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Published
2020-03-01
How to Cite
Quddus, M., Hossain, M., Naser, H., & Aktar, S. (2020). Effects of potassium application on yield attributes, yield and grain quality of lentil in terrace soil of Joydebpur. Bangladesh Journal of Agricultural Research, 44(4), 599-607. https://doi.org/10.3329/bjar.v44i4.45695
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