Vol. 11, Issue 3 (2022)

Author(s):
M David Israel Mansingh, P Saravana Pandian, P Christy Nirmala Mary, A Veeramani and R Geetha

Abstract:
A field experiment was conducted to study the interaction effect of calcium and boron on improving the productivity of groundnut (VRI 2) in Irugur soil series of Madurai district, Tamil Nadu during Rabi season 2020. The experiment was laid out in a factorial randomized block design with three replications having 20 treatment combinations viz four levels of calcium (0, 100, 150 and 200 kg Ca ha^-1) applied through gypsum as factor A and five levels of boron (0, 0.5, 1.0, 1.5 and 2.0 kg B ha^-1) applied through borax as factor B. The results revealed that application of Ca @ 150 kg ha^-1 and boron @ 1.5 kg ha^-1 proved to be the best treatment in improving the grain and haulm yield. Higher doses of calcium and boron did not increase the grain and haulm yields further. Thus calcium and boron exhibited a strong synergistic relationship at Ca₁₅₀B_1.5 kg ha^-1 on yield of groundnut with grain yield (2132 kg ha^-1) and haulm yield (3112 kg ha^-1) in Irugur soil series of the district.