000 03375cam a2200349 a 4500
003 EG-GiCUC
005 20250223032426.0
008 191028s2019 ua d f m 000 0 eng d
040 _aEG-GiCUC
_beng
_cEG-GiCUC
041 0 _aeng
049 _aDeposite
097 _aPh.D
099 _aCai01.16.03.Ph.D.2019.Sa.C
100 0 _aSayed Rashad Ahmed
245 1 0 _aCultivating blue-green algae in wastewater for soil bio-fertilizers production and application on some vegetable crops in Egypt and Tunisia /
_cSayed Rashad Ahmed ; Supervised Adel Saad Elhassanin , Amira Shawky Soliman , Soha Sayed Mostafa
246 1 5 _aزراعة الطحالب الخضراء المزرقة فى المياه العادمة لإنتاج السماد الحيوى للتربة و التطبيق على بعض محاصيل الخضر فى مصر و تونس
260 _aCairo :
_bSayed Rashad Ahmed ,
_c2019
300 _a108 P. :
_bcharts ;
_c25cm
502 _aThesis (Ph.D.) - Cairo University - Faculty of African Postgraduate Studies - Department of Natural Resources
520 _aIn the present study, the possibility of growing cyanobacteria in wastewaters from olive oil production (OMW) and potatoes industry (PIW) was investigated. Nostoc muscorum, Anabaena oryzae and Spirulina platensis were chosen as three blue-green algae for the present study. The three cyanobacteria were cultivated over 30 days period on olive effluent (OMW), diluted effluent (OMW 50%) and PIW. The growth of the three strains was achieved in the three media as indicated by their total chlorophyll, optical density and biomass dry weight. The initial phenols concentration in OMW wastewater was reduced by 50-60% in 15 days, and more than 80% of phenols were removed by day 30. The cyanobacteria grown on wastewater were formulated into biofertilizers and were applied on a sandy soil to grow celery and lettuce plants under different replacement levels (25, 50 and 75%) of the recommended chemical fertilizers, while the control did not receive any fertilizers in a greenhouse experiment. The results indicated that application of biofertilizers led to a significant (p<0.05) increase in the height of plant, root and stem lengths over the control group. The numbers of leaves per plant as well as chlorophyll content were highest in the treatments of biofertilizers (25 and 50%). Also, these treatments increased the total macro- and micro-nutrients of celery and lettuce plants. There was very remarkable enhancement in some recorded sandy soil properties after harvest i.e., pH, total organic matter, total nitrogen, phosphorus and potassium by the treatments of Bio-Mix with 25 and 50%. The present study concluded that 1/4 or 1/2 of the recommended dose of NPK fertilizers could be saved for celery and lettuce growth by using biofertilizers produced from cyanobacteria grown on olive milling or potatoes industry wastewaters as promising eco-friendly bio-organic fertilizers
530 _aIssued also as CD
653 4 _aAnabaena oryzae
653 4 _aCyanobacteria
653 4 _aNostoc muscorum
700 0 _aAdel Saad Elhassanin ,
_eSupervisor
700 0 _aAmira Shawky Soliman ,
_eSupervisor
700 0 _aSoha Sayed Mostafa ,
_eSupervisor
856 _uhttp://172.23.153.220/th.pdf
905 _aNazla
_eRevisor
905 _aSamia
_eCataloger
942 _2ddc
_cTH
999 _c74823
_d74823