EFFECT OF MYCORRHIZA, PHOSPHORUS AND POTASSIUM ON SOME CHEMICAL PROPERTIES OF TOBACCO

Y.M.AL-Kubaissy,

	EFFECT OF MYCORRHIZA, PHOSPHORUS AND POTASSIUM ON SOME CHEMICAL PROPERTIES OF TOBACCO
The Iraqi Journal of Agricultural Science
Article 1, Volume 39, Issue 1, 2008, Pages 14-20
Author

Abstract
A field experiment was conducted at summer season 2004 according to split - split plot experiment using RCBD with three replicates . The purpose of the experiment was to study effects of mycorrniza, phosphorus and potassium on some chemical properties of tobacco crop (.Nicotiana tabacum ) .treatments included 2 mycorrhiza (with , without) as a main plots and phosphorus applied in three levels ( 0,100 200 kg p ha "1 ) as a sub plots and potassium applied in three levels (0,200,400 kg k ha ) as a sub - sub plots. The percent of tobacco leaves ash increased with in creasing rates of p. k applied. Ash percent was 19.05 % with p2 treatment compared to p0 (16.67 %) and 18.50 % with k2 compared to k0 (17.22 %) respectively. Mycorrhiza application increased % sugars in tobacco leaves by 17.70 % , also p2 treatment was higher than p0 in 0.29 % also potassium applied in k2 level increased the % of sugar by 0.09 %The three factors (mycorrhiza , phosphorus , potassium and their interactions) significantly decreased CL concentration in tobacco leaves the treatment AiP2K2 gave 0.12 % compared to control treatment (A0PoK0) gave 0.37 %.

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