The use of some agricultural residues in surface cultivation by microorganisms / Noura Soudy Hassan Soud ; Supervised Galal Mahmoud Elsayed Khalafalla , Khaled Khalil Hegab , Mohammed Zakaria Sedik

Thesis (M.Sc.) - Cairo University - Faculty of Agriculture - Department of Microbiology

In order to improve the green fodder production under hydroponic conditions using agricultural residues and microorganisms, barley grains were grown in a hydroponic developing chamber (8 days) and were subjected to vegetation and chemical analysis. Productivity measured was carried out based on the contents of barley grains and hydroponic barley sprout yield. The data revealed that the microbial counts recorded in rice straw were less than those recorded in bagasse. The counts were 2.8*10⁴ CFU g⁻¹, 5.8* 10⁶ and 5.3* 10⁴ CFU in rice straw, bagasse and barley grains. While, the fungal count reached to 1.4 * 10². 3.0 * 10⁴ and 1.6 * 10³ CFU in same materials used. The microbial counts increased by 48%, 82% and 104% with inoculation with Pseudomonas fluorescens, Saccharomyces cerevisiae, and Ps. fluorescens + S. cerevisiae respectively. In the meantime the hydroponic barley sprout cultivated on bagasse show an increase in total counts and reached 62%, 118% and 190% with, Ps. fluorescens, S. cerevisiae and Ps. fluorescens + S. cerevisiae respectively. The microbial distribution in the agricultural residual, spore-forming bacteria was predominating in rice straw (56%) and Saccharomyces (18%) in bagasse. The vegetative characteristics of hydroponic barley sprout developed on rice straw displayed the highest fresh weight

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