Abd El-Megeed, Nagwa A. (1992). Effect of nitrogen, phosphorus and potassium
on yield and fruit quality of persimmons. M.Sc. Thesis, Fac. Agric., Saba Bacha, Alex. Univ.
Abd El-Megeed, Nagwa A., Abdelfatth S. Wally, W.M. Abd El-Messeih and Samia A. Asaad (2011). Vegetative growth, fruit set, yield and fruit quality of Le-Conte pear grown under calcareous soil conditions as affected by different levels of nitrogen, phosphorus and potassium. J. Agric. Res. and Dev., 25 (2): 171-187.
Abd El-Megeed, Nagwa (2012). Effect of potassium levels and methods of application on ‘Canino’ apricot trees grown in sandy soils. Alex. J. Agric. Res. 57 (1): 101-108.
Abou-Aziz, A. B., M.M. Nageib, El-Sonbarty and M. El-Tanahy (1987). Effect of potassium sulphate as soil application on yield and fruit qualities of pear trees. Al-Ashar J.Agric. Res., 8: 77-86.
Ahmed, F. F. and M. H. Morsy (1999). A new method for measuring leaf area in different fruit species. Minia J. Res. & develop., 19: 97-105.
AOAC (1985). Official methods of analysis pp 490-510. Association of Official Analytical Chemists Washington, D.C.
Broadbent, F.E. and A.B. Carlton (1978). Field trial with isotopically labeled nitrogen fertilizer. P. 1041, In: Nitrogen in the Environment, Vol. 1, Academic Press, Inc. New York, NY.
Carter, M.R. (1993). Soil sampling and methods of analysis. Canadian society of soil Science, Lewis Publishers, London, Tokyo.
Cheng, K.L. and R.H. Bray (1951) determination of Ca and Mg in soil and plant material Soil Sci., 72: 449-458.
Chen, B.M. and W.M. Mellenthin (1981). Effect of harvest date on ripening
capacity and post- harvest life of Anjou pears. J. Amer. Soc. Hort. Sci., 106:
38-42.
Dimitrovski. T., A. Stojkovska, B. Ristevski and D. Cvetkovic (1972). The effect of NPK and irrigation on the vegetative growth, yield and quality of peaches. Jugoslovensko Vocarstvo 6119120: 599-609. (C.F. Hort. Abst. 43(10): 6629).
Eliwa, I., M. F. Mostafa and A. M. El-Seginy (1999). Effect of preharvest calcium sprays on quality and storability of ‘Anna’ apple fruit. J. Agric. Sci. Mansoura Univ., 24 (9): 4979-4988.
El-Naggar, N. L., R. M. El-Saedy and W.A. El-Sisy (2005). Quality and storagability of seedless guava fruits as affected by pre-and pos-harvest Ca treatments. Alex. Sci. Exch., (26) : 89-97.
El-Sherif, H. M., N.M. Taha and E.M. El-Fakharany (2008). Effect of potassium fertilizer source on tree fruiting, fruit quality and storability of Golden Japanese plum. J. Agric. Sci. Mansoura Univ., 33 (4): 2743-56.
Evenhuis, B. and P.W. DeWaard (1976). Nitrogen determination. Agric. Res. Royal Tropical. Ins, Amesterdam.
Fallahi, E., W.S. Comway, K.D. Hickey and C.E. Sams (1997). The role of calcium and nitrogen in postharvest quality and disease resistance of apple. HortScience 32: 831-834.
FAOSTAT (2017). Food and Agriculture Organization of the United Nations statistics division. Internet site available at: (http:// faostat3. fao. Org.)
Faust, M. (1989). Nutrition of fruit trees. In: Physiology of temperate zone fruit trees. John Wiley and Sons, New York. Pp53-132.
Goode, J.E. and K.H. Higgs (1977). Effects of time of application of inorganic nitrogen fertilizers on apple trees in grasses orchard. J. Hort. Sci., 25:317-334.
Hipps, N.A., M.S. Ridout and D. Atkinson (1990). Effects of alley sward width, irrigation and nitrogen fertilizer on growth and yield of Cox’s orange apple trees. J.Sci. Food. Agr., 53:159-168.
Janjic, Z.I., (1979). Effect of nitrogen fertilization on the mineral status and yield of peaches. Uticaj dubrenja azotom na stanje mineral ne ishrane i prinos breska. Jugoslovensko vocarstvo 13 (47148) 3-14 (Soil and Fertiliz. 46 (4) : 4302).
Kassem. H. A. and A.M. El.Seginy (2002). Response of ‘Florida prince’ peach
trees to soil and foliar applications of potassium. J. Adv. Agric. Res., 7 (1):
103-116.
Magness, J. R. and G. F. Taylor (1982). An improved type of pressure tester for the determination of fruit maturity. U. S. Dept. Agri. Circ., 50:8 pp.
Malik, C.P. and M.B. Singh (1980). Plant enzymology and histoenzymology. Atext manual, kalyani publishers, New Delhi.
Manssour, N. M., M. El-Gebeely and A. Shaltout (1986). Effect of potassium sulphate on fruit characters of peach trees. Egypt. J. Hort., (13): 35-52.
Mengel, L.X. and E. A. Kirkby (1978). Principles of plant nutrition. Inter. Potash Int. PP. 454-455. Switzerland.
Murphy, J. and P. Riley (1962). A modified single solution method for the determination of phosphorus in natural water. Anal. Chim. Acta 27: 31-36.
Nagaib M.M., Malaka M. Saleh and Laila F. Hageggen (1990). Effect of potash fertilization on yield and fruit quality of ‘Amer’ Apricot trees. Annals Agr. Sc. Special issue 597-604.
Neilsen G.H., E.J. Hogue and M. Meheriuk (1999). Nitrogen fertilization and orchard-Floor vegetation management effect on growth, nutrition, and fruit quality of ‘Gala’ apple. Can. J. Plant Sci., 79:379-385.
Raese, J.T. and S.R. Drake (1997). Nitrogen fertilization and elemental
composition affects fruit quality of ´Fuji' apples. J. Plant Nutr. 20: 1797-
1809.
Russell, E. W. (1978). Soil conditions and plant growth. 10th Ed. 4th Impure E.L.B.S. and Long Man, England. ‘Haden’ ISHS Acta Hort., 509: 653-660.
Sharma, M.R. and R. Singh (1982). Yield and chemical composition of peach leaves as influenced by NPK fertilization. Pumjab Hort. J. 22(12) 93-98 (Soil and fertilizers., 46 (4): 3562).
Shim, K.K., J .S. Titus and W. E. Splttsoessor (1972). The utilization of post-
harvest urea sprays by senescing apple leaves. J. Amer. Soc. Hort. Sci., 9 (5): 592-596.
Snedecor, G.W. and W.G. Cochran (1990). Statistical methods. Oxford and J.B.H. Bub. Com. 6th Edition. pp: 507.
Soaad, A. Mohamed, Nagwa A. Abd El- Megeed, M. A. Aly and N.H. Nady (2014). Effect of Magnesium, calcium and potassium spraying on vegetative growth, yield and storability of ‘Anna’ apple fruits. J. Biol. Chem. Environ. Sci., 9 (1); 681-704.
Stiles, C.P. and W.S. Reid (1991). Orchard nutrition management. Cornell Univ. Coop. Ext. Info. BuL.219.
Volk, G.M. (1961). Gaseous loss and mobility as factors in nitrogen efficiency. Proc. Soil Crop Sci. Soc., 21:261-268.
Wenxuan, D. and S. T. Fanjing (1996). Effects of Zinc and Copper on activity of leaf carbonic anhydrase in Malus sp. J. Fruit Sci., 1001-7364-01-002.
Wolf, B. (1982). A comprehensive system of leaf analysis and its use for diagnosing crop nutrition status. Commu. Soil Sci, Plant Anal. 13: 1035-1059.
Yagodin, B. A. (1984). Agricultural chemistry. Vol. 2 Mir. Publishers. Moscow. SSR.