The effect of soil applications of zeolite, agrisorb and lignite on the chemical composition of clover-grass mixtures grown in arid conditions of South Moravia

LOSAK, T., HLUSEK, J., JANDAK, J., FILIPCIK, R., STRAKOVA, M., JANKŮ, Ľ., HUTYROVA, H., KNOTOVA, D. LOSAK, M., SEVCIKOVA, M.: The eff ect of soil applications of zeolite, agrisorb and lignite on the chemical composition of clover-grass mixtures grown in arid conditions of South Moravia. Acta univ. agric. et silvic. Mendel. Brun., 2010, LVIII, No. 5, pp. 247–254 The two-year fi eld trial was established in May 2008 on light soil in the cadastre of Ratiskovice near Hodonin in an arid maize-growing production area. Prior to sowing selected soil conditioners were applied in experimental plots of an area of 864 m 2 as follows: zeolite (a mineral of high sorption ca paci ty), lignite (the youngest coal containing humus substances) and the supplementary soil substance agrisorb (polymer organic compound capable of holding in its structure and subsequently releasing water) and they were incorporated into a profi le of 0.15 m. Including the untreated control the experiment involved 4 treatments. The rates of the conditioners were as follows: zeolite – 3 l . m −2 , frac−2