Acta Univ. Agric. Silvic. Mendelianae Brun. 2017, 65, 1225-1229

https://doi.org/10.11118/actaun201765041225
Published online 2017-09-01

Changes in the Soil Magnesium and Sulphur Content after Kieserite Application into Haplic Luvisol and the Effect on Yields of Barley Biomass

Tomáš Lošák1, Jaroslav Hlušek1, Ivana Lampartová1, Gabriela Mühlbachová2, Pavel Čermák2

1Department of Environmentalistics and Natural Resources, Faculty of Regional Development and International Studies, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic
2Crop Research Institute in Prague, Drnovská 507/73, 161 06 Prague 6, Czech Republic

In 2016 a pot experiment (5 kg of soil – Mitscherlich pots) with 4 treatments (incl. unfertilized control treatment) was established with spring barley, variety KWS Irina, in the outdoor vegetation hall. Haplic luvisol from Jaroměřice nad Rokytnou (with a good supply of magnesium and slightly acid soil reaction – 6.01) was used for this trial. The rates of magnesium (0.075 – 0.15 – 0.3 g Mg per pot) and sulphur (0.1 – 0.2 – 0.4 g S per pot) were increased by using the ESTA Kieserite fertiliser (25 % MgO; 20 % S), treatments 2 – 4. Nitrogen was applied in the form of CAN (27 % N) at a rate of 1 g N per pot in all the treatments incl. the control. The content of post‑harvest soil magnesium and sulphur increased significantly with the applied rate (196 – 227 – 261 mg Mg/kg and 40.1 – 76.8 – 208.6 mg S/ kg, respectively). The soil reaction (pH) increased significantly in all the fertilised treatments (6.42 – 6.57 – 6.60) against the unfertilised control treatment (6.10). Dry matter yields of the aboveground biomass (41.75 – 42.25 – 44.75 – 44.25 g DM per pot) increased significantly only when the two highest rates of fertilisers were applied (44.75 – 44.25 g DM per pot) as against the other treatments.

Funding

This study is a part of the project of NAZV No. QJ 1530171 called “Extension of applicability and actualization of categories for determination of the content of available macro‑elements and microelements in soil for ensuring the sustainability of fertility and productive capability of agricultural soils” which is financed by the Ministry of Agriculture of the Czech Republic.

References

27 live references