Vol. 12, Issue 3 (2023)

Author(s):
M Arutkumaran, K Suseendran, C Kalaiyarasan, MV Sriramachandrasekharan, S Jawahar and M Thiruppathi

Abstract:
A field experiment was conducted in farmer’s field during the kharif season (June-September- 2021) in Ambagarathur village, Thirunallar Taluk, Karaikal District of Puducherry to study the effect of foliar nutrition on growth and yield of irrigated greengram. The experimental field soil was sandy clay loam. The treatments consists of T₁- RDF + water spray (control), T₂- RDF + foliar application of 2% DAP and NAA 40ppm on 30 and 45 DAS, T₃- RDF + foliar application of 1% potassium sulphate on 30 and 45 DAS, T₄- RDF + foliar application of 1% TNAU Pulse wonder on 30 and 45 DAS, T₅- RDF + foliar application of 2% poly feed on 30 and 45 DAS, T₆ - RDF + foliar application of 2% DAP and NAA 40ppm + 3% seaweed extract on 30 and 45 DAS, T₇- RDF + foliar application of 1% potassium sulphate + 3% seaweed extract on 30 and 45 DAS, T₈ - RDF + foliar application of 1% TNAU Pulse wonder + 3% seaweed extract on 30 and 45 DAS, T₉ - RDF + foliar application of 2% poly feed + 3% seaweed extract on 30 and 45 DAS, T₁₀ - RDF + foliar application of 2% DAP and NAA 40ppm + 3% seaweed extract + 2% humic acid and fulvic acid on 30 and 45 DAS,T₁₁ - RDF + foliar application of 1% potassium sulphate + 3% seaweed extract + 2% humic acid and fulvic acid on 30 and 45 DAS, T₁₂ - RDF + foliar application of 1% TNAU Pulse wonder + 3% seaweed extract + 2% humic acid and fulvic acid on 30 and 45 DAS, T₁₃ - RDF + foliar application of 2% poly feed + 3% seaweed extract + 2% humic acid and fulvic acid on 30 and 45 DAS. The experiment was laid out in an randomized block design, with replicated thrice with thirteen treatments. Among the different treatments tried, application of RDF + foliar application of 1% TNAU Pulse wonder, 3% seaweed extract, 2% humic acid, and fulvic acid on 30 and 45 DAS (T₁₂) recorded the higher growth attributes such as plant height, leaf area index, dry matter production, number of effective root nodules plant^-1, number of branches plant^-1, andseed yield (1583 kg ha^-1) and haulm yield (3561 kg ha^-1). This was followed by application of RDF + foliar application of 2% poly feed + 3% seaweed extract + 2% humic acid and fulvic acid on 30 and 45 DAS (T₁₃). The lower values of growth, yield attributes and yield of greengram were recorded in the treatment with the application of RDF + water spray (T₁). Therefore it can be concluded that application of RDF + foliar application of 1% TNAU Pulse wonder, 3% seaweed extract, 2% humic acid, and fulvic acid on 30 and 45 DAS along with RDF is viable practice to enhance the growth and yield of irrigated greengram.