Influence of Nitrogen and Harvesting on Dry Matter and Millable Cane Yield of Sweet Sorghum Hugar A.Y. Agricultural Research Station, Kathalagere-577219, Karnataka, India. Abstract A field experiment was conducted at Agricultural Research Station, Kathalagere during kharif, 2007 on clay loam soil under rainfed conditions to study the influence of nitrogen and harvesting stages on dry matter accumulation and leaf, stem, ear head, total dry matter accumulation and biomass yield of sweet sorghum genotypes. Dry matter accumulation (DMA) in leaf, stem, ear head, total dry matter accumulation (TDMA) and millable cane yield were significantly influenced due to genotypes, N-levels and stages of harvesting. SSV-84 recorded significantly higher DMA in leaf (46.20 g), stem (373.5), ear head (74.3 g), TDMA (496.6 g plant −1) and the green bio mass yield (42.78 t ha1). Application of 125 per cent N-dose (81.25 kg ha−1) recorded the higher TDMA (469 g plant −1) in sweet sorghum. It also recorded the higher millable cane yield (43.0 t ha−1).Among the harvesting stages tried physiological maturity stage recorded significantly higher TDMA (485.3 g plant −1) and millable cane yield(45.36 t ha−1) Top Key words Nitrogen, Harvesting, Dry matter, Millable cane, Sweet sorghum. Top |