Our experiment of cultivation technology was established for 3 years (2015–2017). The aim of the study was to examine the stress response of pinto bean variety Diana that was bred in our institute, and to find the best technology variants for successful cultivation under extreme soil and soil water conditions and changing climate conditions. For this purpose, we set sowing time, plant density and fertilizer treatments in the Nyírség region on sandy soil without irrigation. The effect of the examined factors on the yield and the relationship between them were quantified. The evaluation was performed with variance and correlation analysis using SPSS.

Different precipitation and temperature conditions were observed during the growing season for 3 years. Sowing in late April provided the highest yield and sowing around 20 May resulted in the least yield in the examined 2 years. In 2017, the third sowing time was the best with respect of yield, but did not significantly different from the yield of the 2nd sowing time. In 2015–2016 the treatments without fertilizer of second sowing time producted the highest yield because the beneficial effect of the fertilizer was did not manifested for the drought and high temperature. In 2017, the yield-enhancing effect of the raised fertilizer dose had already been manifested as the 150% fertilizer dose provided the highest yield. In the case of plant density, the yield of 400 000 seeds ha-1 plant density was the most favourable.

The sowing time determined the deviation of yield in the largest percentage.It can be concluded that beans, as frost-sensitive plants, can continue to be safely sown in the first half of May despite changing climate conditions. The later sowing of the Diana pinto bean is not recommended because of its semi-determinative growth, as its ripening in rainy conditions is longer, which makes it difficult to harvest.

Keywords: bean, sowing time, fertilizer, plant density, yield