Uptake of Micronutrients by Barley Plant Influenced by Organic and Bio Fertilizers

Abstract

A pot experiment was carried out for investigating the possibility of partial or entire replacement of mineral nitrogen fertilizers with organic and biofertilizers, aiming to improve the efficiency of nitrogen fertilization for barley plant (Hordeum vulgare Giza 123) grown in sandy calcareous soil collected from Agriculture Research Station in Nubariya. Mineral nitrogen fertilizer was added at the rates 30, 60, 90 and 120 mg N kg soil-1. Phosphorus and potassium were added at the recommended rates of 15 mg P and 30 mg K kg soil-1, respectively. Organic fertilizers were added from different sources "compost, chicken manure and pigeon dung " at a rate of 30 mg kg N soil-1 based on their nitrogen content. Bio fertilization was achieved through the addition of 5g pot-1 serialin or /and 5g pot-1 phosphorene; mixed thoroughly with soil. Upon the observed data, the highest Fe uptake was observed when soil was treated with "chicken manure + serialin" combined with mineral-N at addition level of 90 mg N kg soil-1. The highest Mn uptake was recorded when soil was treated with " chicken manure + serialin + phosphorine " combined with mineral-N at addition level of 60 mg mineral N kg soil-1. The highest Zn uptake was obtained when soil was treated with "chicken manure + phosphorene" combined with mineral-N at
addition level of 90 mg mineral N kg soil-1. The highest biological yield was recorded when soil was treated with "chicken manure + serialin" combined with mineral-N at addition level of 60 mg mineral N kg soil-1.