Mahmoud, E., Ramadan, B., El - Geddawy, I., Korany, S. (2014). EFFECT OF MINERAL AND BIO-FERTILIZATION ON PRODUCTIVITY OF SUGAR BEET. Journal of Plant Production, 5(4), 699-710. doi: 10.21608/jpp.2014.53887
E. A. Mahmoud; B. S. H. Ramadan; I. H. El - Geddawy; Samah F. Korany. "EFFECT OF MINERAL AND BIO-FERTILIZATION ON PRODUCTIVITY OF SUGAR BEET". Journal of Plant Production, 5, 4, 2014, 699-710. doi: 10.21608/jpp.2014.53887
Mahmoud, E., Ramadan, B., El - Geddawy, I., Korany, S. (2014). 'EFFECT OF MINERAL AND BIO-FERTILIZATION ON PRODUCTIVITY OF SUGAR BEET', Journal of Plant Production, 5(4), pp. 699-710. doi: 10.21608/jpp.2014.53887
Mahmoud, E., Ramadan, B., El - Geddawy, I., Korany, S. EFFECT OF MINERAL AND BIO-FERTILIZATION ON PRODUCTIVITY OF SUGAR BEET. Journal of Plant Production, 2014; 5(4): 699-710. doi: 10.21608/jpp.2014.53887
EFFECT OF MINERAL AND BIO-FERTILIZATION ON PRODUCTIVITY OF SUGAR BEET
2Sugar Crops. Res. Institute, Agric. Res. Center, Giza, Egypt
Abstract
Tow field experiments were conducted during 2008/2009 and 2009/2010 seasons at Sakha Agricultural Research Station , Kafer El-Sheikh, Governorate, Egypt, to study the effect of phosphorus treatments: 30 kg P2O5 and 300 and 600g/fed of phosphorin , Bucillus sp, ( phosphate dissolving bacteria ) and nitrogen treatments : ( 100 kg N, Azotobacter sp +60 or 80 kg N/fed, Azospirillum sp + 60 or 80 kg N/fed, Azoto. + Azosp. + 60 or 80 kg N/fed on yield and quality traits of sugar beet. A split plot design with four replications was used with P treatments in the main plots and N treatments in the sub plots.
Results revealed that application of 30 kg P2O5 produced the highest root fresh weight, plant dry weight, LAI, yields of roots, sugar and tops and improved juice quality traits in terms of TSS%, sucrose%, purity%, and recoverable sugar %, followed by phosphorin at the rate of 600g and 300 g/fed in a descending order. On the other hand biophosphatic fertilizer decreased sucrose loss to molasses.
Application of 100 kg mineral N/fed produced the highest growth traits followed by Azot. + Azosp. with 80 kgN/fed. The highest values of TSS%, sucrose%, and recoverable sugar resulted from either Azoto. or Azosp.+ 60kgN/fed. Increasing N rates from 60 to 80 kg/fed in combination with N fixing bacteria depressed beet quality and increased impurities in beet roots. The highest root and top yields resulted from 100 kg N/fed, while sugar yield was highest with the combination of Azto. + Azosp. With 60 or 80 kg N /fed followed by 100 kg N/fed.
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