Published in Scientific Papers. Series A. Agronomy, Vol. LXII, Issue 1
Written by Atanas SEVOV, Lyubka KOLEVA-VALKOVA, Adelina HARIZANOVA
The investigation was performed in the 2016-2018 period, near Plovdiv, Bulgaria by the block method in 4 replications in 10 m2 lots in a sandy soil conditions. The aim of the research is to study productivity and quality parameters of native (Prista 3) and Dorine -yellow Jacket Rhizobium coated alfalfa varieties (new technology of adding high levels of effective Rhizobia, embedded in a protective polymer matrix, together with a nutrient booster containing all essential minerals and trace elements). The two varieties were treated with growth regulators (Tekamin Max, Fertigrain Foliar and Tekamin Brix) to help plant development under the sandy soil conditions. The results show better protein value, higher carbohydrate and cellulose content and higher green mass yield in all treated variants. Dorine significantly exceeds the values obtained at Prista 3.
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