SHARMA, SOM DEVSHARMA, SUSHMA2016-11-162016-11-162013http://krishikosh.egranth.ac.in/handle/1/85813ABSTRACT The present investigation entitled “Studies on efficacy of organic sources for growth, nutrient uptake and soil health of nectarine c.v. Silver King” was carried out for the year (2013) in the integrated horticulture farming systems’ model farm under the ‘Department of Fruit Science’ of Dr Y S Parmar University of Horticulture and Forestry, Nauni, Solan, Himachal Pradesh.. The study was laid out in randomized block design and replicated thrice. The nectarine trees were treated with different treatment combination of vermicompost(25kgtree-1); FYM(30kgtree-1); biofertilizers(40g tree-1); compost(15kgtree-1); cow urine(1:10) and vermiwash(1:10). Among the different treatment combination (FYM30+VC25+VW1:10+CU1:10) i.e. FYM (20 kg tree1)+vermicompost (20 kg tree-1) + vermiwash(1:10)+cow urine(1:10) was found to be most effective with repect to plant growth, Physico-chemical properties of soil (pH, EC, bulk density, water holding capacity), leaf nutrient status and quality. However, increased microfloral count (Azotobacter sp., Pseudomonas sp., soil fungi., Actinomycetes sp and AM spore population) of the soil was observed with treatment conbination (BF40+VC25+VW1:10+CU1:10) i.e. biofertilizers (40gtree-1);vermicompos t (25kgtree-1); cowurine(1:10)and vermiwash(1:10).Hence it is concluded from the preliminary studies that the conjoint application of FYM (30 kg tree-1)+ vermicompost (25 kg tree-1)+ vermiwash (1:10)+ cow urine (1:10) was most effective to perform better cropping behaviour in terms of tree growth parameters, physico-chemical characteristics of soil, leaf nutrient concentration and fruit quality.enbeverages, biological phenomena, sexual reproduction, developmental stages, research methods, selection, budgets, reproductive stage, breeds (animals), setsnectarine c.v. Silver King, organic sources for growth,Thesis