The three-year (1996-1998) field experiment studied the effect of irrigation and mineral fertilisation on yielding in spring wheat and spring triticale cultivated on light soil. The productivity of 1kg of mineral fertilisers and 1mm of sprinkling irrigation was also analysed. The weather conditions were recorded at the experiment station located at the site of the experiment. A supplementary irrigation increased the spring wheat grain yield by over 30% (1.31 t·ha^-1), and triticale – by 23% (1.21 t·ha^-1). Intensive mineral fertilisation increased the wheat grain yield by 88% (2.89 t·ha^-1) and triticale – by almost 67% (2.77 t·ha^-1). The productivity of 1mm of water applied and mineral fertilisation were higher in wheat than triticale. A simplified economic analysis showed that a decrease in grain yield due exposed to sprinkling irrigation and fertilisation could not compensate for higher production costs at current cereal prices.

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