ISSN 2285-5785, ISSN CD-ROM 2285-5793, ISSN ONLINE 2285-5807, ISSN-L 2285-5785


Published in Scientific Papers. Series A. Agronomy, Vol. LX
Written by Hamid MADANI, Saeid BORJI, Nourali SAJEDI

The aim of current study was to verify the effect of zinc and phosphorus application in soil on leaf characteristics and sugar content in sugar beet root. For this purpose, Sugar beet was grown under field conditions for 2009-2010 cropping season in Arak, Navazen, Iran. The experiment was a completely randomized block design with a factorial arrangement in three replications. Zinc treatment was from two levels of zinc (Z) soil application. Z1 as control and Z2 was 25 kg/ha ZnSO4 as soil application and phosphorus treatment were P1 to P4 with four levels of 125, 250, 375 kg/ha ammonium super phosphate (ASP) and non as control, respectively. In young sugar beet fields, the use of low amounts of ammonium super phosphate will show the best response for zinc interaction. In our experiment at 45 days after sowing date, the sugar beet leaf chlorosise could decrease by 25 kg/ha ZnSO4 as soil application. In all recorded data in 70, 85 and 100 days after sugar beet seed sowing date the number of yellow leaves was decreased when zinc sulfate insert in soils. In addition, phosphorus and zinc interaction had significant effects on petiole water content. Petiole water content is a much related treat to viability of sugar beet leaf and its functions especially in young stage of plant. Petiole RWC at 85 days after planting date has significant changes too. LAI was significant changes when plants were 45 days old.

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