V., SRINIVASAG.T., MALLIKARJUNAB., HEMLA NAIKG., JANARDHANG.N., THIPPESHAPPAV.B., SANATH KUMARS.Y., CHANDRASHEKAR2021-12-012021-12-012012-08UHS10PGM106https://krishikosh.egranth.ac.in/handle/1/5810178468A field experiment was conducted to know the effect of “Integrated Nutrient Management Studies in China aster [Callistephus chinensis (L.) Nees.]” in the Department of Floriculture and Landscape Architecture, at College of Horticulture Mudigere during rabi season of 2011-2012. The experiment was laid out in randomized complete block design with 3 replications and 11 treatment combinations viz., T1:100% RDF, T2:Azospirillum +75% RD`N’ +100% RD`P’ and K, T3: PSB+75% RD’P’+100% RD’N & K, T4: Azospirillum+ FYM+ 75% NPK, T5:Azospirillum +VC + 75% NPK, T6: PSB+ FYM + 75% NPK, T7: PSB+ VC +75% NPK, T8:Azospirillum+ PSB+ 75% N&P +100% RD`K’, T9:Azospirillum +PSB+FYM +75% NPK, T10: Azospirillum+ PSB +VC +75%NPK, T11:Azospirillum+ PSB+ FYM + VC+ 75% NPK. The treatments comprising of inorganic fertilizers (NPK), organic manures (FYM & VC) and biofertilizers (Azospirillum & PSB) in cv. Kamini. The treatment receiving Azospirillum + PSB + FYM + VC + 75% recommended NPK recorded the highest plant height (54.67 cm), number of leaves (103.3), leaf area (15.83 dm2), total dry weight of plant (43.26 g) and yield attributes such as flower yield (11.73 t/ha) and seed yield (4.61 q/ha). Significantly higher available nutrients in soil (N-227.00, P2O5-47.33 and K2O-177.67 kg/ha) and maximum NPK per cent content by plant parts were recorded in treatment receiving Azospirillum +PSB +FYM +VC +75% recommended NPK. The same treatment also recorded significantly higher quality parameters such as stalk length (25.08 cm), flower diameter (4.87 cm) and vase life of cut flowers (7.04 days). The economic analysis clearly indicated that net returns and benefit cost ratio was found highest in the same treatment (T11) combination (Rs. 1, 22,264/ha and 2.74 respectively).EnglishThesis