Differential responses of yield and quality to organic manures in sweet corn [Zea mays (L.) saccharata]

Abstract

:The experiment has twenty four treatment combinations comprising of six main plots, organic manures mainly green leaf manure (GLM), enriched compost, FYM and vermicompost in combinations compared with RDF and FYM + RDF and four sub plots, liquid organic manures mainly bio-digester liquid manure, Panchagavya and cow-urine. The treatments comprised of application of 7.5 t FYM + RDF (100:50:25 N, P 2 O 5 , K 2 O kg ha -1 + 10 kg ZnSO 4 ) (RPP) and (100:50:25 N, P 2 O 5 , K 2 O kg ha -1 + 10 kg ZnSO 4 ) (RDF) alone exhibited significant effects on yield of sweet corn viz., with husk and without husk cob weight per plant, fresh cob yield, fresh and dry grain weight per plant and quality parameters viz., protein content, reducing and non-reducing sugar, total sugar, total soluble solids and total carbohydrates content in sweet corn kernels of sweet corn. Among the organic manurial combinations GLM + EC + VC (top dressing at GGS) recorded higher yield and quality of sweet corn with all liquid organic manures over basal applied vermicompost. Similarly, bio-digester and cow urine @ 10 per cent spray noticed higher yield and quality of sweet corn over control. Irrespective of organic manures, the dehydrogenase activity were significantly higher with GLM + FYM + VC (top dressing at GGS) and GLM + EC + VC (basal) equivalent to RDN over RPP and RDF.

Effect of Panchagavya on Growth and Yield: A Review

“…Sakubai et al, (2014) recommended that the organic treatment (VAM + panchagavya + amritpani @ 3% drench and spray) for enhanced growth and yield of buck-wheat. Waghmode et al, (2015) found that treatments with cow urine spray 10 % and panchagavya spray 3% at grand growth period and tasseling stages gave higher protein content (9.27% and 9.21%), higher fresh cob yield ( 5078 kg/ha and 5262 kg/ha), fresh grain weight (166.1 g and 169.8 g), dry grain weight per plant (69.85 g and 70.66g), cob girth (13.89 cm and 13.71 cm) and cob length (13.29cm and 12.88 cm) compared to other treatments in sweet corn. Boraiah et al, (2017) concluded that panchagavya spray resulted in the attainment of significant yield per hectare and higher shelf life of 18.58 days and higher capsaicin content of 0.32% in capsicum.…”