Influence of boron and lime on boron concentration and dry matter yield of green gram (Vigna radiata L.)

A pot experiment was conducted during 2019 pre-kharif season in acid soil at College of Agriculture, Iroisemba, Cental Agricultural University, Imphal to investigate the effect of five levels of boron (viz., 0, 0.5, 1, 1.5 and 2 kg B ha-1) and two levels of lime (L1=unlimed and L2=limed) on boron concentration and dry matter yield of green gram (Vigna radiata L.) variety DGGS-4. Results revealed that irrespective of different treatments there was an increasing trend of plant boron concentration and dry matter yield up to harvest of the crop. Significantly higher boron concentration and dry matter yield were recorded in green gram grown in soil added with boron over control at different crop growth stages. Application of boron in absence of lime resulted in an increase in boron content of greengram. Irrespective of boron application, liming enhanced dry matter yield of the crop. The combined application of lime and boron at 2 kg ha-1 enhanced the dry matter yield of green gram followed by addition of lime and 1.5 kg B ha-1 at different growth stages. This shows higher agronomic efficiency of boron and lime.