Response of spring and facultative triticale on microbial preparation (Azospirillum brasilense and Bacillus polymyxa) by different nitrogen nutrition
2020
Bohdan Mazurenko | Nataliia Novytska | Liubov Honchar
The use of phosphate-mobilizing and nitrogen-fixing bacteria can increase the productivity of spring triticale and its resistance to abiotic factors. Peculiarities of microbial preparations influence on yield formation was studied in 3 triticale cultivars. Seed treatment by Azospirillum brasilense and Bacillus polymyxa had a different effect on elements of triticale productivity. Grain yield was increased on 7.2% in average by Azospirillim brasilense seed treatment and to 8.6% by Bacillus polymyxa. Their combined application gave 11.5% raise to grain yield. Positive effect of microbial preparations on number of productive shoots, grain weight per spike and thousand kernel weight was observed for traditional fertilization system (P36K72 + N80) and system without nitrogen application (P36K72). Correlation between elements of productivity showed differences between cultivars. Indicators of productive shoots and grain weight per spike had main effect on grain yield in all cultivars. Raising all elements of triticale performance has led to decrease in protein content for treated variant by Azospirillum brasilence and Bacillus polymyxa. Combined use this microbials allowed to keep protein content high while yield was increasing.
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