Effect of organic substances on yield and quality of onion, Allium cepa L

A field experiment was conducted to study the effect of organic substances on yield and quality of onion, Allium cepa L variety Agrifound Light Red during the year 2012-13. The experiment was laid out in randomized block design with three replications and eight treatments with combination or individual application of organic manures, biofertilizer and inorganic fertilizers. After analysis of performance of different treatments the results indicated that 100 per cent recommended doses of fertlizers (RDF) resulted into maximum polar diameter, equatorial diameter, neck thickness, maximum A+ grade bulbs and average weight of bulb. Cent per cent RDF also showed beneficial effect in increasing marketable yield, total yield and total soluble solids which was at par with the treatment containing RDF (75%) + vermicompost (3 tons/ha) + PSB (2 kg/ha) + Azotobacter (2 kg/ha).