Growth, Yield and Nutrient Concentration of Potato Plants Grown under Organic and Conventional Fertilizer Systems

Abstract

This study was conducted to evaluate whether organic fertilization alone or with bio-fertilization could replace mineral fertilization in potato production with no adverse effect on quantity or quality of potato tubers. Two field experiments were conducted at Maba Farm, Cairo - Alexandria Desert Road during the summer seasons of 2009 and 2010 in Egypt on a sandy soil under sprinkler irrigation to compare effect of organic and biofertilizers with a conventional program on growth, productivity and nutrient concentration in leaves of potato (Solanum tuberosum L.), cv. Sante. The experiment included the treatments: 1) recommended conventional fertilization, full dose of mineral NPK + 11.9 Mtha of compost (control); 2) 23.8 Mtha 1