تأثير البكتريا Azotobacter chroococcum و thuringiensis Bacillus و سماد الدواجن ضد الفطر Fusarium solani المسبب لمرض تعفن جذور الحمضيات تحت ظروف الظلة الخشبية

الملخص EN

This experiment was cd ouarriett toassess the impact of two bio- agent factors Azotobacter chroococcum و Bacillus thuringiensis and poultry manure with three ratios (10% 15 % and 20%) against pathogenic fungus Fusarium solani under a lathhouse conditions results showed the presence of a positive impact when using bacteria with fertilizer on the plant and reducing the pathogenesis fungus and its impact on the plant and in particular the use of Azotobacter chroococcum with poultry manure by 15 % gave good results asfresh weight and dry weight of shoot and root, plant height of shoot and rootlength , which were15.60 and 8.90 and 9.40 and 5.80gm.plant-1 and 51.00 and 38.06cm.plant-1 as respectively compared to thecontrol treatment which were 5.60 and 2.70 and 2.00 and 1.00 gm.plant-1 and 42.60 and 31.00cm.plant-1.

The manure encouraged the growth of bacteria , as well as inhibited the growth of fungus and lack of fungusadaptability in the soil and the highest inhibition percentage inhibition for the treatment of fungus and Azotobacter with 15% of poultry manure with pathogen fungus which effect on plant weight offresh and dry shoot and dry root and the length of shoot and root plant, 10.80 and 5.80 and 6.20 and 3.00g.m plant1- and 47.10 and 35.10cm.plant-1 and respectivelycompared with treatment with fungus alonewhich were 1.00 and 0.60 and 0.50 and 0.00 and gm.plant-1 and 9.10 and 5.00cm.plant-1 respectivetyand appeared significant differences evident when used bacteria and manure with fungus .