Impact of Nano NPK Fertilizer and Humic Acid Application on Vegetative Growth of Three Strawberry Cultivars

Abstract The experiments was carried out in an unheated Plastic house unit of the Department Horticulture and Landscape Design / College Agriculture Forestry University Mosul for years 2021-2022 with aim enhancement vegetative growth three cultivars Strawberry, Festival, Ruby Gem Liberation D, Orleans. Factorial experiment according to split-plot system so that were placed main-plot, while nano-fertilization treatments NPK concentration 0, 1.5 3 g.l −1 humic acid levels 6 ml.l put sup-plot using Randomized Complete Block (RCBD) replicates, means compared by Duncan’s test at 5% level. Results could be summarized as follow: under this study differed some studied traits, especially significant superiority strawberry cultivar Orleans over two Festival number leaves, area one leaf, leaf a plant, dry weight system. Cultivars on chlorophyll content root weight. Foliar fertilization nano fertilizer, gm..l , led increase leaves system, gm.l significantly increased leafy plant control treatment. Fertilization level roots