الفهرس | Only 14 pages are availabe for public view |
Abstract This study aimed to evaluate the effect of bio-fertilization on sandy soils properties as one of the available natural resources to increase the cultivation area in Egypt. A field experiment was carried out in sandy soil of a farm at 6th of October Agriculture Company, El-Qasasin, Ismailia Governorate Egypt, to study the effect of mineral nitrogen levels alone or combined with bio-fertilizers (Rhizobium radiobacter sp.) and (Candida incommunis) strain inoculation on some soil physical and chemical properties and wheat productivity and bread quality. Thus, the objectives of the work were to improve some chemical and physical properties of sandy soils using some bio-fertilizers to raise their productivity in Egypt and Tunisia. The baselines for this study involved the following: I. The consideration of bio- fertilizers and mineral fertilizers 2NPK3 treatments. Wheat grains of Masr 1variety were sown on 15 November 2016. These grains were obtained from Crop Institute Agriculture Research Center, Giza, Egypt. Wheat grains at a rate 80 kg fed-1 were divided into four divisions.The first division of 20 kg received mineral nitrogen fertilizer rates of (25, 50, 75 and 100 kg N fed-1). The second division of grains (20 kg) was inoculated with Rhizobium radiobacter sp. strain (PGPR) mixed with 400ml of adhesive liquid (Arabic gum). Ammonium nitrate (33 %N) was applied at rates of (25, 50, 75 and 100 kg N fed-1), where they were applied in three times 21, 40 and 60 days after planting, Potassium sulphate (48 % K2O) at a rate of 75 kg fed-1 was applied in two doses after 21 and 45 days from planting. Wheat crop was harvested on 15 May, 2017. Each experiment was carried out in a split plot design with four replicates |