Response of green gram (Vigna radiata L.) to various biostimulants

Abstract

An experiment was conducted at the Research Farm, Maharishi Markandeshwar (Deemed to be University), Mullana during the summer 2023 to evaluate “Response of Green gram (Vigna radiata L.) to various biostimulants”. This experiment was conducted in a randomized block design (RBD) with three replications. The experiment comprised 10 biostimulant treatments including seaweed extract, humic acid, biochar, hairamine used individually and in combinations. The results indicated that (T7) 100% RDF + Seaweed extract (0.2%) + Hairamine (0.4%) exhibited the highest values for plant height (41.67 cm, 51.73 cm), number of branches (7.56, 10.59), number of leaves (21.83, 29.50), and dry weight (11.49 g, 21.96 g) at 45 DAS and at harvest, respectively. (T7) 100% RDF + Seaweed extract (0.2%) +Hairamine (0.4%) also recorded the highest values of number of pods (21.65), number of seeds pod-1 (9.45), and 100-seed weight (4.99 g). The highest seed yield (10.47 q ha-1), stover yield (27.47 q ha-1), biological yield (37.93 q ha-1), and harvest index (27.63%) were also achieved under the (T7) 100% RDF + Seaweed extract (0.2%) + Hairamine (0.4%) treatment. T7 100% RDF +Seaweed extract (0.2%) +Hairamine (0.4%) showed significant higher values for most plant characters as compared to control and was at par with 100% RDF + Humic Acid (0.2%) + Hairamine (0.4%) (T8), 100% RDF + Biochar (0.2%) + Hairamine (0.4%) (T9) and 100% RDF + Seaweed extract (0.2%) + Humic Acid (0.2%) (T10) in most of the cases. Thus, 100% RDF + 0.2% Seaweed extract + 0.4% Hairamine can be recommended to farmers to include in the agronomic package of green gram to increase their production and profitability.