Response of Two Sweet Sorghum Varieties to Mineral and Bio- Phosphate Fertilization

Document Type : Original Article

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Agricultural Research Center, Sugar Crops Research Institute, Alexandria, Egypt

Abstract

Two field experiments were carried out during 2016 and 2017 sumer seasons at the farm of the Agricultural Research Station in Al Sabhia, Alexandria, Egypt, to study the response of two sweet sorghum varieties to three mineral phosphates (calcium mono phosphate 12.5 P2O5) levels and two bio- fertilizer (phosphorein) levels on plant growth and its sugar content. The experiment was set up as Split-split plot design in three replications, the main plots were assigned to two sweet sorghum varieties viz., Sugar drip and Mn 4080 and sub plots were occupied with three levels of calcium mono phosphate (0, 100 and 200 kg/fed). Phosphorein inoculation (uninoculation, and inoculation) were arranged in the sub-sub plots treatments. The studied plant characters i.e. weight (g), height (cm), stalk diameter, saltk sugar content (%), leaf weight/plant (g), leaves number, nodes number, leaf length (cm) and leaf width. The results indicated that the effect of mineral and bio- fertilizer levels had significant effect on yield, yield components and quality traits, varieties differed significantly in all studied characters in both seasons.The highest former traits produced by Mn-4080 and Sugar drip variety. The highest values of plant attributes were obtained by Sugar drip variety with 200 kg/fed (super phosphate 12.5% P2O5) with inoculation by phosphorein.
 

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