For citations:
Andreeva O.T., Pilipenko N.G., Sidorova L.P., Kharchenko N.Yu. Productivity and nutritional value of sunfl ower and Sudan grass. Siberian Herald of Agricultural Science. 2019;49(4):42-48. (In Russ.) https://doi.org/10.26898/0370-8799-2019-4-5