Improvement of soil properties and seed yield of mustard as influenced by rice stubble in-situ burn ash

Abstract

On-farm research was conducted at low land areas located at 24° 06' N and 91° 17' E with elevation of 5-8 m under Habigonj district during winter in consecutive years of 2020-21 and 2021-2022, respectively. Five rice stubble management practices viz., T_1: rice straw burn + no tilth (Control), T₂: rice straw burn + no tilth + water spray, T₃: rice straw burn + one tilth, T₄: rice stubble burn + two tilths and T₅: common practice was evaluated in mustard cultivation. The experiment was setup in randomized complete block design with three replications. The mustard seed was sown in broadcast method. One of the locally popular broadcasts Aman rice cultivars (viz. Gota, Lucky, Kashi) followed by mustard var. BARI Sarisha-14 were used in this trial. The practice rice straw burn + soil tilth twice could be the good option for better seed yield of mustard with higher marginal benefit cost ratio.

Bangladesh J. Agril. Res. 50(1): 77-85, March 2025