INFLUENCE OF WEATHER CONDITIONS AND POLYMYXOBACTERIN APPLICATION ON YIELD AND QUALITY OF MALTING BARLEY IN UKRAINIAN FOREST- STEPPE

Nataliya Bilyera, Mykola Gorodniy, Georges Hofman

Abstract


There is a growing interest to increase P availability and P uptake by crops using phosphate solubilizing bacteria. Therefore, barley seeds were treated with a liquid solution of Polymyxobacterin which contain phosphorus solubilizing bacteria (PSB) and compared with untreated barley seeds and that in combination with three fertilization treatments (a control without fertilization, the application of only mineral fertilizers and a combination of mineral fertilizers and farmyard manure) and that during the years 2007 and 2008. Maximum effectiveness of PSB application was found in favorable climate condition when applying both mineral and organic fertilizers with an additional yield increase of 1.37 t/ha in 2008. Furthermore, there was a slight increase in kernel plumpness and a decrease in protein content in 2008. On the other hand, no evident differences in starch content after PSB application were found in both years.


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