Effect of microbiological fertilizers 'Slavol' on forage rape biomass and seed yield

Abstract

In this paper the effects of the application of microbiological fertilizer "Slavol" on the forage rape biomass and seed yield were investigated. By powdery form of "Slavol" seed was treated before sowing. The active matter of this fertilizer consists of the following bacteria: Azotobacter chroococum, Azotobacter vinelandi, Bacillus suptilis, B. megaterium, B. licheniformis. Since forage rape develops great mass of leaves and robust and branchy root it is important forage crop and suitable green manure. "Slavol" application significantly increased its biomass, as well as its seed yield. Seed yield is represented as total yield and successful seed production indicator – harvest index.

U radu su ispitivani efekti primene mikrobiološkog đubriva "Slavol" na prinos biomase i semena krmne repice. Pre setve seme je zaprašeno "Slavolom" u praškastom obliku čiju aktivnu materiju čine Azotobacter chroococum Azotobacter vinelandi, Bacillus suptilis, B. megaterium, B. licheniformis. Kako krmna repica daje veliku količinu sočnog lišća i istovremeno razvija vrlo razgranat i robusni koren, značajna je krmna biljka i pogodna za zelenišno đubrivo. Primenom "Slavola" značajno je uvećana biomasa, a takođe i prinos semena, prikazan kroz ukupni prinos i kroz pokazatelj uspešnosti semenske proizvodnje – žetveni indeks.