الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
The study addressed the following points: 1- Compost production from some agricultural residues and its use in organic fertilization of Moringa plant. 2- Isolation of a group of bacteria that can fix air nitrogen, dissolve mineral phosphate and assess the efficiency of these isolates in terms of their ability to provide these elements of the plant and choose the best. 3- Identify the most efficient isolates by morphological, biochemical and genetic methods. 4- Studying the effect of microbial pollination in individual form or in mixtures with organic and chemical fertilization on moringa plant growth and its effect on soil rhizosphere. In this study, two types of raw plant residues (rice straw and maize straw) with animal waste (livestock manure) and poultry residues were selected for compost production. These raw materials were mixed to make nine piles. Compost number 6 was selected because it gave the lowest value in the ratio of nitrogen: carbon and was 18: 1 and used in organic fertilization of moringa plant. 1) 18 isolates of Azotobacter were isolated by MPN method. These isolates showed their ability to fix nitrogen by acetylene reduction test, ranging from 861.01 to 31.01 nmol / ml / day, and the most efficient isolation was 14. 2) 8 isolates of phosphate dissolving bacteria were isolated and tested for their ability to dissolve phosphorus in liquid medium containing tri calcium phosphate. 4) The two were defined by morphological, biochemical and genetic methods as Azotobacter beijerinckii and Bacillus paramycoides, respectively. The experiments of this part aimed at studying the effect of organic, chemical and biological fertilizers on the growth moringa plant. The results obtained can be summarized as follows: 1- Microbial insemination significantly increased growth traits (root length, stem length, fresh and dry weight of plant. A. The treatment number 6 (Bacillus paramycoides + 50% of the recommended nitrogen rate) gave the highest dry weight value of 16,393 g / plant. B. Treatment 15 (Azotobacter beijerinckii + Bacillus paramycoides + compost + 100% of the recommended nitrogen rate) gave the highest fresh weight value of 34.150 g / plant. C. Treatment No. 11 (Azotobacter beijerinckii + 100% of the recommended nitrogen rate) gave the highest value of the length of the stem 71.667 cm / plant. D. The treatment number 15 (Azotobacter beijerinckii + Bacillus paramycoides + compost + 100% of the recommended nitrogen rate) gave the highest root length of 15.333 cm / plant. 1- Organic and bio-fertilizer resulted in a significant increase in plant nitrogen, phosphorus and potassium content. Treatment (12) gave the highest value of plant nitrogen and phosphorus content of 5.512, 0.651% / plant. Compost + 100% of the recommended nitrogen rate) The highest value of plant content of potassium 2.014% / plant. RECOMMENDATION: The results of the study suggest that the use of bio-organic fertilizers can be used to increase the growth of Moringa plant and thus increase its productivity because of its many uses. Inoculation with (Azotobacter beijerinckii + Bacillus paramycoides+ compost + 100% of the recommended nitrogen rate) gave the highest growth of moringa.