The productivity of two yellow lupine (Lupinus luteus L.) cultivars as an effect of different farming systems

Abstract

Between 2011 and 2015, a two-factor field experiment on yellow lupine was conducted in Gorzyń, Poland (52°34'07''N, 15°54'33''E). The first-order factor was the farming technology: low-input (LI; without fertilization and chemical protection); medium-input (MI; medium level of fertilization and chemical protection) and high-input (CONV; high level of fertilization and chemical protection). The second-order factor was the cultivar (indeterminate cv. Mister and determinate cv. Perkoz). The research assessed the productive and economic effects of two yellow lupine cultivars grown in different farming systems. The weather conditions significantly influenced the yield in consecutive years of the research. A change from the LI farming system to the MI and CONV systems increased the seed yield by 13.1% and 22.0%, respectively. The research also showed differences in the yield of the cultivars under study. The indeterminate cv. Mister yielded more seeds than the determinate cv. Perkoz (1.95 t/ha vs 1.81 t/ha). The research also showed that when the EU subsidies were added, the value of production increased along with the cultivation intensity. However, an increase in the outlay on industrial means of production in higher-intensity technologies caused a decrease in the gross agricultural income value.