Application of Nuclear Technique to Assess The Optimization and Beneftts from Bio And Organic Fertilization of Some Vegetables

Two field experiments were, conducted in the Plant Nutrition and Fertilization Unit, Soils and Water Department Nuclear Research Center, Atomic Energy Authority, Inshas, Egypt,assessing application of N in totally organic or totally mineral or different mixtures with the rat of N (being fixed) with or without biofertilizers carried out following design factorial complete block design with three replicates .In the first one, pea was planted and in the second cucumber was planted in the same plots. This study was planned to Determine the contribution of mineral, organic and bio fertilizers in supplying plant with nitrogen using nuclear technology 15N and assess the optimization and benefits from bio and organic fertilization of some vegetables .Fertilization treatments indicated that the combination of 50%mineral fertilizer + 50%organic compost was superior over all other treatments. It means that half of the recommended dose of mineral fertilizer is enough to meet the requirement of pea and cucumber crops when supplemented with organic compost. This combination may have an environmental impact since it would reduce the risks of chemical fertilizers.