اظهرت نتائج أثر مبيد الادغال كلايفوسيت بالجرعة الموصى بها و بضعفالجرعة في سكان بكتريا 077002020007077./ ان التاثير اعتمدعلى نوع البكتريا وتركيز المبيد والفترة الزمنية ما بعد المعاملة . لم يحدث مبيدكلايفوسيت تأثير معنويا ‎٣‏ ايام ‎٦٠‏‏يوما من اذ بلغ ‎١٠٥ ×٨٠‏ وحدة مكونة لمستعمرة / ١غم‏ تربة ‎٨٣‏ ×ث٠١‏وحدة لمستعمرة/ حين احدث خفضا لسكان البكتريابضعف الجرعة ‎٦٠‏ يوم ‎٦١‏ × ث٠١‏وحدة و٥٦× ‎١٠٥‏ تربةم...

During the enzymic reduction of N2 to NH3 by Mo-nitrogenase, free hydrazine (N2H4) is not detectable, but an enzyme-bound intermediate can be made to yield N2H4 by quenching the enzyme during turnover [Thorneley, Eady & Lowe (1978) Nature (London) 272, 557-558]. In contrast, we show here that the V-nitrogenase of Azotobacter chroococcum produces a small but significant amount of free N2H4 (up t...

This study assesses the effects of Azotobacter biopriming on early development sugar beet. chroococcum F8/2 was screened for plant growth promoting characteristics and were estimated through germination parameters structural changes root tissues. A. characterized as a contributor to nitrogen, iron, potassium availability, well producer auxin 1-aminocyclopropane-1-carboxilic acid deaminase. Appl...

abstract soil beneficial microorganisms such as plant growth promoting rhizobacteria (pgpr) are able to enhance plant growth. the research was conducted using a randomized complete block design as split plot factorial with three factors (nutrient management, azospirillum and azotobacter strains) .in this experiment the effect of azospirillum and azotobacter inoculation on yield and yield compon...