EFFECT OF INOCULATION WITH N2 FIXERS, MICRONUTRIENTS AND INORGANIC N ON COUNTS OF AZOSPIRILLUM WITH RHIZOSPHERE OF BARLEY PLANT IN SOUTH SINAI AREA- EGYPT | ||
| Egyptian Journal of Applied Science | ||
| Volume 38, Issue 7, July 2023, Pages 75-98 PDF (687.13 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ejas.2023.325863 | ||
| Abstract | ||
| ABSTRACT In order to study the effect of bio-fertilizers, micronutrients and N mineral application on barley plant under calcareous soil conditions. Field experiment was conducted at Experimental Research Station –Ras Sudr, D.R.C. in 2017-and 2018 winter seasons. Experimental factors were: micronutrients as foliar application (Fe, Mn Zn at 250 ppm), mineral N (50, 75 and100 kg N/fed) and Bio-fertilizers (control, Azotobacter chroococcum and Azospirillum brasilense either single or mixed application). The obtained results found that, significant effects of either bio-fertilizers, mineral N and micronutrients as foliar application on yield parameters, mineral contents of barley plants, yield and its attributes, P and N mineral contents of barley grains and microbial activity in barley plant rhizosphere. Interaction of mixed bio-fertilizers treatment micronutrients foliar application of 250 ppm gave maximum enhancement for most studied treatments. Barley straw and grains yield during the two successive seasons. While P, N contents of both barley shoots and grains yield recorded maximum values with mixed bio-fertilizers treatment, mineral N and Micronutrients as foliar application of 250 ppm. The most effect treatment for microbial counts of bio-fertilizers, yield parameters and nutrients content was Mixture bio-fertilizers Mineral N at 100 units/fed and Mocronutrients 250ppm. | ||
| Keywords | ||
| Key Words: Barley; Salinity- Bio-Fertilization; Micronutrients and Mineral N | ||
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