P. R. DHARMAHIMANNIKERI I. M.2019-06-212019-06-212007-08-31TH8823http://krishikosh.egranth.ac.in/handle/1/5810109441Field experiments were conducted for two seasons during kharif 2003 and 2004 in the Olericulture Unit, Department of Horticulture, University of Agricultural Sciences, Dharwad, to evaluate the organic manures, intercrops and weed management practices in turmeric production. Among the different organic manures, application of vermicompost (@ 15.65 t/ha) was found superior for all the growth and yield parameters. Application of vermicompost resulted in the highest fresh rhizome yield (33.62 t/ha), cured rhizome 3deld (6.74 t/ha) and was closely followed by the application of pressmud (@15 t/ha). Application of pressmud (@ 15 t/ha) realized the maximum B:C ratio (2.71:1) followed by the application of poultry manure (@ 6.43 t/ha) (2.60:1) and vermicompost (@ 15.65 t/ha) (2.31:1). Among the different intercropping systems, sole crop of turmeric was found significantly superior for all the growth and yield parameters, fresh rhizome yield (23.46 t/ha) and cured rhizome yield (4.40 t/ha). Growing of okra as an intercrop has significant influence on all the growth and yield parameters of turmeric and it has realized maximum fresh rhizome yield (20.38 t/ha) and cured rhizome yield (3.95 t/ha). Turmeric+tomato cropping system was realized maximum B:C ratio (2.66:1) followed by turmeric + french bean (2.53:1) and turmeric + okra (2.22:1). While, sole cropping of turmeric realized the B:C ratio of 2.18:1. Among the different weed control treatments, weed free control (hand weeding) recorded significantly highest weed control efficiency (100%), fresh rhizome yield (26.27 t/ha), cured rhizome yield (5.59 t/ha) and B:C ratio (2.74:1). Among the herbicides, chlorimuron (@ 9.0 g a.i./ha) was highly toxic to turmeric crop and application of pendimethalin showed the maximum weed control efficiency (76.24%) recorded significantly higher fresh rhizome yield (26.67 t/ha), cured rhizome yield (5.59 t/ha) and B:C ratio (2.39:1) followed by application of chlomazone (@ 1.0 kg a.i./ha).ennullThesis