30. Comparative study of the effect of nitrogen deficiency on growth, photosynthetic parameters and enzyme activity of young sunflower (Helianthus annuus L.) and corn (Zea mays L.) plants март 12, 2019май 18, 2022tsaikin Author: Videlina Petkova, Mjuzgian Yusmen, Lyubka Koleva, Malgorzata Berova Read More »
