Influence of different nutrition systems on yield and other parameters of productivity of potato

Abstract

In this paper results of studies of the effects of different combinations of mineral fertilizers and rotted farmyard manure on yield and other parameters of the productivity of potato are presented. The experiments were conducted in 2008 and 2009 in mountainous regions of Montenegro (Kolašin), on the alluvial-diluvial soil, at an altitude of about 900 m. The results obtained suggested that the application of manure had significant impact on increasing the productivity of the studied parameters of potato. The influence of mineral nutrition was also very distinct. The highest values of the studied parameters of potato productivity were obtained by applying fertilizers with humic acids (NPK 15:15:15 400 kg.ha-1 + MCB 300 kg.ha-1 and MCB 800 kg.ha-1 + KMg 100 kg.ha-1), which were, compared to the other treatments, statistically justified. The highest number, average weight and tuber yield in two years studied was obtained in the variant treated individually with MCB 800 kg.ha-1 + KMg 100 kg.ha-1 or the same variant combined with the manure. In all variants application of combination of organic and mineral fertilizers resulted in higher number and average weight of tubers, as well as the higher yield per hectare compared to the non-fertilized variant.