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003			EG-GICUC
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008			260411s2025 ua a|||frm||| 000 0 eng d
040			_aEG-GICUC _beng _cEG-GICUC _dEG-GICUC _erda
041	0		_aeng _beng _bara
049			_aDeposit
082	0	4	_a635.63
092			_a635.63 _221
097			_aPh.D
099			_aCai01.07.14.Ph.D.2025.Em.E
100	0		_aEman Abdel-Salam Gaballah Mohamed, _epreparation.
245	1	0	_aEnhancing greenhouse cucumber production and quality utilizing organic residues as potting media through various cultivation methods and assessing application economics / _cby Eman Abdel-Salam Gaballah Mohamed ; Supervisors Dr. Mohamed Mohamed Shahein, Dr. Emad Abdelhameed AbdelDayem, Dr. Mohamed El-Sayed Abuarab.
246	1	5	_aتحسين إنتاج وجودة خيار الصوب باستخدام المخلفات العضوية كوسط للزراعة من خلال طرق زراعة متنوعة وتقييم جدوى التطبيق
264		0	_c2025.
300			_a112 pages : _billustrations ; _c25 cm. + _eCD.
336			_atext _2rda content
337			_aUnmediated _2rdamedia
338			_avolume _2rdacarrier
502			_aThesis (Ph.D)-Cairo University, 2025.
504			_aBibliography: pages 92-111.
520		3	_aCocopeat is among the most frequently utilized substrates in soilless farming. Nonetheless, the extraction of Cocopeat generates a detrimental carbon footprint, highlighting the necessity for alternative, sustainable substrate options. To tackle this issue, we examined the effects of substituting Cocopeat with a blend of various Rice straw, Sawdust, and compost on cucumber growth and yield over two growing seasons, 2021–2022 and 2022–2023. The treatments included Cocopeat 100% (control), sawdust 100%, rice straw 100%, compost 100%, combinations of Cocopeat and sawdust (1:1, v/v), combinations of Cocopeat and sawdust (3:1, v/v), combinations of Cocopeat and rice straw (1:1, v/v), combinations of Cocopeat and rice straw (3:1, v/v), combinations of Cocopeat and compost (1:1, v/v), and combinations of Cocopeat and compost (3:1, v/v). The highest yield was recorded with rice straw at 100.55 ton ha-1, followed by the Coco 50%: Compost 50% treatment yielding 74.32 ton ha-1 and 69.26 ton ha-1, respectively, while the lowest yield was noted for sawdust at 22.23 ton ha-1. Across both growth seasons, rice straw achieved the highest irrigation water productivity (IWP) of 51.56 and 51.91 kg m− 3, respectively, followed by Coco 50%: Rice straw 50% at 38.08 and 38.37 kg m− 3, whereas sawdust resulted in the lowest IWPs of 6.93 and 11.48 kg m− 3. In both growing seasons, the rice straw showed the greatest rate of photosynthesis, with readings of 23.34 µmol m–2 s–1 and 22.14 µmol m–2 s–1, respectively. Conversely, the lowest photosynthesis rates during both growing seasons were observed with the Coco 75%: Compost 25% treatment, at 3.23 µmol m–2 s–1 and 3.03 µmol m–2 s–1, respectively. The treated rice straw substrate media ranked as the most profitable and resilient option in terms of net present value (NPV) and benefit-cost (B/C) ratio metrics, followed closely by the compost treatment. It seems that treated rice straw-based media is a promising substrate in soilless culture systems as a viable alternative substrate for cucumber cultivation instead of Cocopeat substrate.
520		3	_aيُعدّ الكوكوبيت من أكثر البيئات استخدامًا في الزراعة بدون تربة، إلا أن استخراجه يسبب بصمة كربونية مرتفعة، مما يستدعي البحث عن بدائل مستدامة. هدفت الدراسة إلى تقييم تأثير استبدال الكوكوبيت بخليط من قش الأرز، ونشارة الخشب، والكمبوست على نمو وإنتاجية الخيار خلال موسمي 2021–2022 و2022–2023. أظهرت النتائج أن قش الأرز حقق أعلى إنتاجية (100.55 طن/هكتار) وأعلى كفاءة لاستخدام مياه الري (51.91 كجم/م³). كما تميز قش الأرز بأعلى معدل للتمثيل الضوئي مقارنة بباقي المعاملات. في المقابل، سجلت نشارة الخشب أقل القيم في جميع الصفات المدروسة. أظهرت التحليلات الاقتصادية تفوق قش الأرز من حيث الربحية وفقًا لمؤشري NPV وB/C، مما يجعله بديلاً واعدًا للكوكوبيت في أنظمة الزراعة بدون تربة.
530			_aIssues also as CD.
546			_aText in English and abstract in Arabic & English.
650		0	_acucumber
650		0	_aخيار
653		1	_aSubstrate media culture _aCucumber _aGrowth _aIrrigation water productivity _aFruit quality _aPhotosynthesis _aبيئات الزراعة _aخيار
700	0		_aMohamed Mohamed Shahein _ethesis advisor.
700	0		_aEmad Abdelhameed AbdelDayem _ethesis advisor.
700	0		_aMohamed El-Sayed Abuarab _ethesis advisor.
900			_b01-01-2025 _cMohamed Mohamed Shahein _cEmad Abdelhameed AbdelDayem _cMohamed El-Sayed Abuarab _dMohamed Zaky El-Sayed El-Shinawy _dHassan Ali Hassan _UCairo University _FFaculty of Agriculture _DDepartment of Vegetable Crops
905			_aShimaa _eEman Ghareb
942			_2ddc _cTH _e21 _n0
999			_c179396