02387cab a2200313Ia 45 0 u188437 SIRSI 101228s2006 ua ss b eng d EAL eng ara ART AASM V44 No3 26 EI-Masry, T. A. Annals of agricultural science, Moshtohor, 2006 v.44 (3) [electronic resource]. Response of growth and productivity of leek (Allium porrum L.) to nitrogen and potassium fertilization [electronic resource]. استجابة النمو والقدرة الإنتاجية للكرات للتسميد النتروجينى والبوتاسى.‪ p.1181-1206. Includes references. The effect of nitrogen and potassium fertilizer on leek was evaluated through two field experiments during the two the successive growing seasons of 200312004 and 2004/2005 at a private fann, Tamiya, Faypum Governorate, Egypt. To verify this objective, leek" cv. Cleopatra" was grown and treated with nitrogen fertilizer at rates of 100, 150,200 and 250 Kg N fed⁻¹ as soil application of ammonium nitrate (33.5%N) or urea (46%N). Potassium sulphate (48% K20) was used as the respective K source. Nitrogen treatments were applied in 4 equal applications; 25% of the quantity was spread on the rows before transplanting and the rest amount was added at 30, 50 and 70 days from transplanting. Treatments comprised 2 levels of K; 48 and 96 Kg K20 fed:1 at two equal doses; 50 and 70 days from transplanting. Data of growth characters; plant height, No. of leaves plant⁻¹ , fresh and dry weight of leaves planrl fresh and dry weight ofbulb plant⁻¹ and total fresh and dry weight planr⁻¹ were estimated. Also, total yield (ton fed⁻¹), and some chemical constituents;leaf pigments; total chlorophyll and carotenoids, nitrogen, phosphorus, potassium, nitrite and nitrate concentration of leek were estimated. Summary in Arabic. Leek Growth. Leek Yields. Leek Fertilizers. Potassium fertilizers. Nitrogen fertilizers. Gadallah, F. M. Annals of Agricultural Science, Moshtohor. 2006.v.44(3) 1110-0419 nnas u183870 http://nile.enal.sci.eg/EALE/2006/AASM/4406/3/1181.pdf Full Text Article. 1 AR lcc 43304 43304