02089cam a2200337 a 4500 EG-GiCUC 20250223031136.0 150201s2013 ua d f m 000 0 eng d EG-GiCUC eng EG-GiCUC eng Deposite Ph.D Cai01.12.10.Ph.D.2013.So.B Sohad Fouad Said Elsharnoby Biochemical Studies on Production of Humic Substances and Their Application In Organic Farming / Sohad Fouad Said Elsharnoby ; Supervised Abdo Othman Abdelhamied , Ahmed Mohamed Ahmed Ali Dokhan دراسات كيميائية حيوية على انتاج المواد الهيومية وتطبيقاتها فى الزراعة العضوية Cairo : Sohad Fouad Said Elsharnoby , 2013 163 P. : charts ; 25cm Thesis (Ph.D.) - Cairo University - Faculty of Science - Department of Organic Chemistry Six different compost samples were evaluated. Marjoram compost was selected as the more humified one. Results of investigating isolation and purification procedures suggested milder methods to obtain good yield of humic acid with minimum structural alterations. Structural features studies of compost humic acid compared to more humified ones(i.e.Leonardite) and a synthetically prepared humic-like substance using a variety of wet-chemical and spectroscopic methods, exhibit noticeable similarity and revealed that they are close to soil humic acids with slightly less aromaticity, molecular weight and functional groups content. With respect to biological activities studies they inhibited in vitro, mycelial growth of 5 from 8 phytopathogenic fungi tested Issued also as CD Fulvic acids Humic acids Humic substances Abdo Othman Abdelhamied , Supervisor Ahmed Mohamed Ahmed Ali Dokhan , Supervisor http://172.23.153.220/th.pdf Aml Cataloger Nazla Revisor ddc TH 49233 49233 ddc 0 CUCL cl210 2024-02-11 Cai01.12.10.Ph.D.2013.So.B 01010110064459000 2023-09-22 00:00:00 TH ddc 0 CUCL cl2u8 2024-02-11 Cai01.12.10.Ph.D.2013.So.B 01020110064459000 2023-09-22 00:00:00 64459.CD CD