Influence of cultivar, soil conditioners and NPK fertilizers on yield components and bean grain yield

Abstract

The primary goal of bean production is to obtain high and stable yields, in which an important role. For that reason, in this manuscript we investigated the impact of cultivar, soil conditioners and NPK fertilizer on yield components and grain yield of bean (Phaseolus vulgaris L.). Field microexperiments were conducted during the 2020 in the agroecological conditions of the central Šumadija (locality Rača Kragujevačka), on brown forest soil type (Eutric Cambisol), according to the Split plot design in four repetitions. In this research, a three-factorial experiment was based in the following variants: Variety (A1 - Galeb, A2 - Sremac), “pH Plus” soil conditioners (B1 - without “pH Plus”, B2 - with “pH Plus” 500 kg ha-1) and NPK fertilization (C1 - control - without fertilizer application, C2 - N30P20K30 kg ha-1 a.m., C3 – N60P40K60 kg ha-1 a.m.). Standard agrotechnological measures were applied, as for the regular production of bean. The results showed that the application of NPK increased the number of pods per plant from 36.3% (on the treatment N30P20K30 kg ha-1 a.m.) to 46.1% (on the treatment N60P40K60 kg ha-1 a.m.) in comparison to the control, number of grains per plant from 17.5% to 27.2%, as well as the mass of grains per plant from 20.0% to 48.3%. The application of “pH Plus” soil conditioners increased the number of pods per plant by 9.7%, number of grains per plant by 9.9% and the weight of grains per plant by 4.2%.