Shahin,, M. (2006). EFFECT OF POTASStUM FERfiL1ZAtION ON GROWTH, LEAVES NUTRIENT CONTENT, AND yiELD OF " KHALAS" DATE PALM IN AL HASSA OASIS (K. S. A.). Journal of Soil Sciences and Agricultural Engineering, 31(1), 523-530. doi: 10.21608/jssae.2006.236932
M. Shahin,. "EFFECT OF POTASStUM FERfiL1ZAtION ON GROWTH, LEAVES NUTRIENT CONTENT, AND yiELD OF " KHALAS" DATE PALM IN AL HASSA OASIS (K. S. A.)". Journal of Soil Sciences and Agricultural Engineering, 31, 1, 2006, 523-530. doi: 10.21608/jssae.2006.236932
Shahin,, M. (2006). 'EFFECT OF POTASStUM FERfiL1ZAtION ON GROWTH, LEAVES NUTRIENT CONTENT, AND yiELD OF " KHALAS" DATE PALM IN AL HASSA OASIS (K. S. A.)', Journal of Soil Sciences and Agricultural Engineering, 31(1), pp. 523-530. doi: 10.21608/jssae.2006.236932
Shahin,, M. EFFECT OF POTASStUM FERfiL1ZAtION ON GROWTH, LEAVES NUTRIENT CONTENT, AND yiELD OF " KHALAS" DATE PALM IN AL HASSA OASIS (K. S. A.). Journal of Soil Sciences and Agricultural Engineering, 2006; 31(1): 523-530. doi: 10.21608/jssae.2006.236932
EFFECT OF POTASStUM FERfiL1ZAtION ON GROWTH, LEAVES NUTRIENT CONTENT, AND yiELD OF " KHALAS" DATE PALM IN AL HASSA OASIS (K. S. A.)
Soil and Water Dept., Faculty of Agric., AI- Azhar University, Cairo Egypt
Abstract
This study was carried out during the season of 2005 on a 20 years-old "Khalas" date palms (Phoenix dactylifera, L.), grown on sandy loam soils, varied in their K content, in AI Hassa Oasis (K. S. A), to investigate the effect of potassium fertilization on their growth, leaves nutrient content and yield. The results revealed that the best treatment of potassium fertilization was 4.5 kg / palm /year of potassium sulphate fertilizer (50% K20). Although the results indicating that the high response of K fertilization was obtained for the deficient soil in their K content. In this respect the results showed that the best method of K application was disked in holes on soil. As regard to proper time of application, the results also revealed that the application of K fertilizer at two equal doses in May and December or at three equal doses in Marsh, May and December is better. Such treatments increased yield, leaf growth as well as leaf N, P and K contents of date palm.
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