000			03323cam a2200349 a 4500
003			EG-GiCUC
005			20250223032422.0
008			191022s2019 ua f m 000 0 eng d
040			_aEG-GiCUC _beng _cEG-GiCUC
041	0		_aeng
049			_aDeposite
097			_aPh.D
099			_aCai01.07.01.Ph.D.2019.Ho.Y
100	0		_aHoda Abdalla Aly Ibrahim
245	1	0	_aYield and quality of alfalfa as affected by some cultural treatments / _cHoda Abdalla Aly Ibrahim ; Supervised Korany Ismail Abdelgawad , Abdelalim Abdelrahman Metwally , Abdrabbo Abdelazim Abdrabbo
246	1	5	_aتأثر حاصل و جودة الألفالفا ببعض المعاملات الزراعية
260			_aCairo : _bHoda Abdalla Aly Ibrahim , _c2019
300			_a324 P. ; _c25cm
502			_aThesis (Ph.D.) - Cairo University - Faculty of Agriculture - Department of Agronomy
520			_aTwo field experiments were carried out at the Agricultural experiment and research station, Cairo univ., Egypt in two locations. The first location was in Giza from 2013 to 2017 at loamy clay soil. The second location was in Wadi Elnatroon, in Elbihera governerate from 2016 to 2018 at sandy soil. First experiment was aimed to study the effect of low irrigation rates and phosphorous additions on growth, yield, WUE and protein and fiber contents of two alfalfa cultivars ( Elwadi Elgadid and Cuf-101). Three irrigation treatments (100%, 80% and 60%) in Giza and (100%, 75% and 50%) in Wadi Elnatroon were used. Three phosphorous rates (0, 60 and 80 kg P₂O₅/fed) were used. The results showed that there were significant increments in total fresh and dry forage yields by using irrigation level 80 % than those of 100 and 60% in 2014, 2016 and 2017 seasons in Giza and 75% in Wadi El-Natroon. Values of WUE for fresh and dry forage yields were increased by decreasing irrigation level from 100 to 60%. El Wadi El Gadid cultivar had significant increases of total fresh and dry yields, as well as, WUE and quality than Cuf-101 cultivar. Increasing phosphorous rates from 0 to 40 and 80 kg P₂O₅/fad caused significant increases in total fresh and dry yields, as well as, WUE and quality. Second experiment was aimed to study the response of two cultivars for cutting stages (full bud, 25% and 50% blooming) and potassium rates (0, 40 and 80 kg K₂O /fed) and determine the most appropriate cutting stage and potassium rate to get high yield and quality. Elwadi Elgadid cv. surpassed Cuf-101 in plant height, dry leaf/stem ratio and total dry yield in 2016 and 2017 seasons. Dry leaf/stem ratio increased with increasing potassium rate to 80 kg K₂O/fed in the studied seasons. Also, Delaying cut alfalfa at 50% of blooming gave the tallest plants and the highest total dry, protein and fiber yields than cutting at full bud stage. Whereas, cutting early at full bud recorded the highest dry leaf/stem ratio
530			_aIssued also as CD
653		4	_aAlfalfa
653		4	_aCutting stage
653		4	_aIrrigation
700	0		_aAbdelalim Abdelrahman Metwally , _eSupervisor
700	0		_aAbdrabbo Abdelazim Abdrabbo , _eSupervisor
700	0		_aKorany Ismail Abdelgawad , _eSupervisor
856			_uhttp://172.23.153.220/th.pdf
905			_aNazla _eRevisor
905			_aSamia _eCataloger
942			_2ddc _cTH
999			_c74693 _d74693