• S.BABU
• Dr. M.VENKATESAN

Field studies were undertaken to study the influence of seed soaking with nutrients, bio-chemicals and bio-fertilizers in combination with three levels of fertilizers on the growth and yield of paddy cv. CO 43 and ADT 36 raised in 'samba' (August - January) 1997-98 and 'kuruvai' 1998 (May to September) respectively at the Experimental Farm, Department of Agronomy, Annamalai University. In both the seasons, the growth and yield attributes of rice were greatly increased by the application of 120: 38: 38 N, P2O5 and K2O kg ha-1 in conjunction with seed soaking with KH2PO4 (2%) + Penshibao (0.01%) + Azospirillum (600g/ha) + phosphobacteria (600g/ha). In 'samba' season of 1997-98, this treatment combination resulted in maximum grain yield (5790 kg ha-1) and straw yield (8058 kg ha-1), which was 33.25 and 28.18 per cent higher than the control (unsoaked at M1 level). In 'kuruvai' season of 1998, the corresponding increase in grain and straw yield over the control was 28.64 and 21.80 per cent. Besides, the uptake of NPK by rice in both the seasons was significantly increased by the above treatment combination. Net return ha-1 and return per rupee invested were also considerably increased.

Agricultural productivity, paddy cultivation, cropping pattern, sustainable nutrient management strategies, etc.

"PRODUCTIVITY ENHANCEMENT OF RICE IN LOW LAND RANGES OF CAUVERY DELTA REGIONS THROUGH SUSTAINABLE NUTRIENT MANAGEMENT STRATEGIES", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.790-795, May-2019, Available :http://www.jetir.org/papers/JETIRBP06137.pdf

"PRODUCTIVITY ENHANCEMENT OF RICE IN LOW LAND RANGES OF CAUVERY DELTA REGIONS THROUGH SUSTAINABLE NUTRIENT MANAGEMENT STRATEGIES", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp790-795, May-2019, Available at : http://www.jetir.org/papers/JETIRBP06137.pdf