Author(s):

SD Patil, VR More, GA Bhalerao and MP Jagtap

Abstract: A field experiment was conducted during the rainy (kharif) season in Indian in 2017 at central farm vasantrao naik Marathwada Krishi vidyapeeth parbhani to study the effects of seaweed extract (prepared from Ascophyllum nodosum) on the growth and yield of soybean [Glycine max (L.) Merrl.] grown under rainfed conditions with combination of chemical fertilizers and seaweed extract. The granular application was applied at the time of sowing with two different concentrations ( 20 and 40 kg/ha^-1 ) and foliar spray was applied at the time of flowering (2 Ml SL lit^-1 ).Granular and Foliar applications of seaweed extract significantly enhanced yield and yield attributing parameters. The highest yield attributes, seed yield, GMR, NMR, was recorded with applications of 100% RDF + 40 Kg SG ha^-1 + 2 Ml SL ha^-1 (T₇) seaweed extract, followed by 100% RDF + 20 Kg SG ha^-1 + 2 Ml SL ha^-1 (T₆) seaweed extract. Highest B:C ratio is highest with T₆ it is due to high cost of fertilizer and dose of fertilizer given in treatment. The maximum straw yield was also achieved with T₇. Thus, under rainfed soybean production, applications of inorganic fertilizers with seaweed extracts could be a promising option for yield enhancement.

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