EFFECTS OF MICROBIOLOGICAL AND INORGANIC FERTILIZATION ON YIELD AND YIELD COMPONENTS IN BREAD AND DURUM WHEAT IN SIIRT PROVINCE CONDITIONS

Abstract

This study was carried out in the fields of Siirt University Faculty of Agriculture, Department of Field Crops in 2016-2017 with 3 replications according to divided parcels in randomized complete blocks design. DAP and Urea as inorganic fertilizers, nitrogen-binding Bacillus atrophaeus (N), phosphate solvent Bacillus subtilis (P), and combinations of these two bacteria strains (NxP) are applied on Ceyhan-99 bread and Artuklu durum wheat varieties to evaluate their effects on yield and yield components. Plant height (cm), spike length (cm), number of spikes per m2, number of grains per spike, 1000 grain weight (g), number of tillers, grain yield (kg/da), biological yield (kg/da) and harvest index rate (%) were examined in the experiment. According to the result of the study, grain yield per decare ranged between 224.2-355.7 kg. The highest grain yield in bread wheat (Ceyhan-99) was obtained from nitrogen-binding Bacillus atrophaeus application (355.7 kg/da), while the lowest was on the control application with 267.2 kg/da. The highest grain yield in durum wheat (Artuklu) was obtained from nitrogen-binding Bacillus atrophaeus application (281.8 kg/da) and the lowest was obtained from the control (224.2 kg/da).