Effect of some nitrogenous and phosphatic fertilizers sources and va-mycorrhiza inoculum on growth, productivity and storability of girlic (Allium sativum L) : 1-Vegetative growth and chemical constituents. [electronic resource].

Includes references.

Two field experiments were carried out at a private farm at EI-Manial village, Talkha province. Dakahlla govemrate during winter seasons of 2004/2005 and 2005/2006. The study aimed to Investigate the effect of N-sources (calcium nitrate, ammonium sulphate, sulphur C08I8d UI'8I and bentoniI8 coated urea), P-sources( super phosphate either powder and granules and rock phoephate) as well as vesicular arbuscular mycorrhlza (VAM) fungi and their interations on the vegetative growth (plant height, number of IeaveI/pIant, dry weight, leaf area/pIant, chlorophyll content/plant, neck diameter, bulb. diameter and bulbing ratio) and chemical constituents (N. P, K, NO3 and NO2) of garIc plants (Sids-40) The obtained results showed that plant height, dry weight, leaf area/plant, total chlorophyll content, neck diameter and bulb diameter were significantly increased by application of ammonium sulphate, In both seasons, while, number of leaves/plant was not significantly atrected by N-sources, In both seasons. Plant height, dry weight, leaf area, total chlorophyll and bulb diameter were significantly Increased by application of powder super phosphate, In both seasons while, number of Ieaves/plant, neck diameter and bulbing ratio were not significantly affected by Psources, in both seasons. All measured parameters were signiftcantly Increased by Inoculation of VAM fungi except of number of IeavesIplant and bulblng ratio were not significantly affected by VAM fungi, In both seasons.Application of sulphur coated urea significantly Increased the percentage content of N. P and K and significantly reduced NO3 and NO2, in both seasons and the lowest values of NO3 and NO2 obtained by application of bentonite coated urea, In both seasons. ApplIcatIon of granules super PhosPhate significantty increased N % and K % and the concentration of NO3 and NO2 reduced by using rock phosphate followed by using. powder super phosphate, In both seasons while, P % was not significantly affected by P-sources Inoculation of VAM fungi signficantly Increased the concentration of N %, P % and K % and this treetment slgnlllcantly reduced the concentration of NO3 and NO2, In both seasons.

Summary in Arabic.

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