Influence of natural liquid organics on growth and biochemical attributes of blackgram (Vigna mungo L.)

Abstract

A field experiment was conducted to investigate the effect of natural organics and recommended dose of fertilizers on growth and biochemical attributes of blackgram (Vigna mungo L.). The results revealed that the treatments receiving the recommended dose of fertilizers recorded significantly higher crop growth rate, net assimilation rate, leaf area index, leaf area duration and specific leaf weight compared to other treatments at all growth stages. Among organic treatments, the treatment receiving Seed treatment with Beejamrutha + Soil Application of Ghanajeevamruta as basal + Foliar sprays of Jeevamrutha @ 3% (Every 10 days) + Foliar sprays of Panchagavya @ 3% (Every 10 days) (T10) and the treatment receiving foliar sprays of jeevamrutha @ 3% (every 10 days) recorded higher crop growth rate, net assimilation rate, leaf area index, leaf area duration and specific leaf weight compared to other treatments. Chlorophyll content, concentration of phenols and aminoacids, catalase and peroxidase activity were recorded higher in T1 (RDF) and T2 (RDF along with the seed treatment with water). Lowest chlorophyll content, concentration of phenols and aminoacids, catalase and peroxidase activity were recorded in the treatment receiving seed treatment with beejamrutha (T3).