Hegde, N KPradeepa, L2019-07-092019-07-092003No. of references 144http://krishikosh.egranth.ac.in/handle/1/5810113343"Field experiment were conducted on nutrient management studies in ginger {Zingiber officinale Rose) Cv. Humnabad at K.R.C.College of Horticulture, Arabhavi on medium deep black soil during the year 2002- 2003. Experiments on effect of vcrmicompost and micronutricnts (Fc and Zn) were laid out in RBD with three replications. In the field trial on vcrmicompost and organic manures, application of 100 : 50 : 50 NPK kg/ha (RDF) + vcrmicompost 2.5 t / h a has resulted in vigorous vegetative growth with higher plant heigh 1 (49.70 cm), number of tillers (16.76) at 180 days after planting, leaf area (31.47 cm^) and leaf area index (7.48) at 150 days after planting. Application of RDF + vcrmicompost 2.5 t per ha produced significantly higher fresh rhizome yield (19.09 t/ha), cured rhizome yield (4.79 t/ha), essential oil (1.94%), oleoresin (9.82%), crude fibre (5.0%) and uptake of N, P and K (104.10 kg/ha, 25.28 kg/ha and 248.02 kg/ha, respectively). Among the eight treatments, application of RDF + vcrmicompost (@ 2.5 t/ha) has recorded high C:B ratio (1 : 4.65), whereas lowest C:B ratio was obtained in control (1 : 3.1). In the experiment consisting of Fe and Zn micronutricnts (both chelated and unchclatcd) the application of RDF + chelated FeS04 + ZnS04 each at 20 kg per ha resulted in higher plant height (41.33 cm) and number of leaves (234.89/plant) at 180 days after planting. Fresh rhizome yield (22.10 t/ha), curing percentage (29.3%), cured rhizome yield (5.60 t/ha) were higher in the treatment supplied with RDF + 20 kg FeS04 + 20 kg ZnS04 per hectare. With respect to micronutricnts, application of RDF + 20 kg FeS04 + 20 kg ZnS04 per ha has recorded higher C:B ratio (1 : 5.0) whereas control recorded lower C:B ratio ( 1 : 3.10)."ennullNUTRIENT MANAGEMENT STUDIES IN GINGER [Zingiber officinale Rose) Cv. HUMNABADThesis