Effect of spraying the nutrients in the vegetative growth and yield of potato Solanum tuberosum L. CV. Savanna at spraying season

Abstract

This experiment was conducted in a field at Hameed Shaaban, Abu Ghraib during the spring season 2015. Seeds of Elite rank of Savanna potato were planted in 4m rows …75 cm between each other and 25 cm between tubers. The depth of cultivation was 10-12 cm. The field was divided into three blocks with 11 treatments randomly distributed and thus there were 33 experimental units within randomized complete block design (RCBD) to test five types of nutrients; i.e. Biohorm, a growth regulator and enzymatically activator; Foliartal, a neutral leaf nutrient; Grow more, a leaf nutrient high in potassium; Multisource- N, a leaf nutrient high nitrogen andFoliartal, a phosphorus-rich fertilizer. Each was applied in two concentrations 100 and 250 ml.L-1. The treatments were assigned as (F0 to F10). Results showed a significant superiority of Biohorm treatment at 250 ml. L-1 for most traits as dry weight of vegetative 153.43 g , leaves content of chlorophyll 92.10 (mg 0.100 g-1 fresh weight) , leaf area 28.59 dm2 , tuber average weight 116.56 g and plant yield 1220.1 g.plant-1. Foliartal (neutral) treatment at 100 ml. L-1 rivaled significant tubers per plant 6.487 tuber. Plant-1.