Improving linseed, Linum usitatissimum L. productivity through identification of tolerant genotypes and management technologies in salt affected soils under rainfed condition

摘要

A series of trials was conducted under controlled and farmers' field conditions during three consecutive rabi seasons of 2000-01 to 2002-03 for screening linseed genotypes and developing management technologies suitable for salt affected soils under rainfed condition to improve productivity. Sweta, Padmini and Shubhra followed by Padmini and Sweta were initially identified salt tolerant cultivars at 8,6 and 4 dS/m salinity levels, respectively. Sweta followed by Meera and Shubhra during 2000-01 and Padmini followed by Sweta during 2001-02 and 2002-03 performed better in salt affected fields under rainfed condition. During 2000-01, improved management comprising sowing on the side of ridges and FYM application improved the crop performance while other improved management technologies (line/seed drill sowing, application of FYM @ 2 t/ha and use of straw mulch) during 2001-02 and 2002-03 played significant role in improving linseed productivity in salt affected farmers fields under rainfed condition.This has increased Benefit: Cost ratio from 2.08 to 2.58 over farmers practice.