تأثير اضافة المخصبات البكتيرية في المغذيات الكبرى في التربة و النبات و محصول الماش

Abstract

Field experiment conducted in Al-Anbar University College of agriculture fields (alternative site in the Abu Ghuraib) for season 2016, three types of bacterial isolates are: Rhizobia legumenosorum, Pseudomonas fluorescens and Bacillus megaterium, seeds were contamination with inoculum, after a few minutes seeds were planted, field experience designed according to (RCBD) , the synthesis of bacteria without fertilizer formulations, synthesis with 0.25 fertilizer formulations (R.,R.+B.,R.+P.,R.+B.+P.) and control (100% fertilizer formulations only), after 70 days from the cultivation (N,P,K) was measured in plants and the remaining in the soil after harvest , the results was showed that the treatments of bio-fertilizer was significant superiority in Percentage of the three main elements (N,P,K) absorbed from plant comparison with control that recorded minimum value of these elements (0.99 ,0.32 , 1.56) %, while MBP25 treatment have recorded highest percentage of, the three elements (N,P,K) (1.59 ,0.77,2.03 )%, significant superiority on control and double treatments, the three main elements (N,P,K) available and residual in the soil after harvest in all treatments was significant superiority to control ,the MBP25 treatment was highest percentage of these elements (152.7 , 24.6 , 230.6 ppm) and MB25 was followed ,in total yield MBP25 were superiority on other treatments in yield (1211.2 kg.ha-1 ) , plant height (65.8 cm. plant-1 ).