INFLUENCE OF SUBSOIL WATER LEVEL ON THE COST OF ADDITIONAL PRODUCTS AND PROFITS FROM THE FERTILIZER APPLICATION ON THE DRIED PEAT SOILS IN REED CANARY GRASS CULTIVATION
Results of research concerning influence of subsoil water level on the cost of additional products and profits from fertilizer application were presented. Research was carried out in 2009 - 2011 on the dried old arable peat soils. It was found high fertilizer efficiency for application of P <sub>30</sub>K <sub>120 </sub>with subsoil water level in 70 cm. Application of of nitrogen fertilizer is effective only at high level of subsoil water.