The E4/E6 Absorbance Ratio, Humification Index in Soil and Cereals Drought Tolerance After 26 Years of Fertilisation. - Sedlář, Ondřej; Balík, Jiří; Černý, Jindřich; Kulhánek, Martin; Suran, Pavel; Procházková, Simona; M., Vasanthavigar (Applied & Environmental Soil Science, 2026)