Biologinių preparatų ir kalio lapų trąšų įtaka kukurūzų derlingumui

Abstract

The field experiment was conducted in 2020. Vytautas Magnus University Agricultural Academy Test Station. Field soil is a deeper glycine-saturated loam (PLb-g4 Endohipogleyic-Eutric Planasol - Ple-gln-w, according to FAO). Biological preparations and potassium fertilizers and their combinations were used in field trials of maize. During the experiment, corn grain yield, grain yield of 1 plant, 1000 grain mass and grain content in the cob were determined. Summarizing the results of the experiment, it was found that the highest grain yield (10.05 t ha-1 and 9.97 t ha-1) was when fertilizing potassium leaf fertilizers with the combination of K-Leaf and K-Leaf and Terra Sorb Complex, respectively. The highest amount of grain in the bulb (485 pcs.) Was obtained for the crop using complex preparations of K-Leaf and Terra Sorb, but the changes in the amount of grain in the bulb were insignificant. Changes in the weight of 1000 grains for all variants compared to the control were significant. The studied preparations significantly increased the grain productivity of maize 1 plant. This increase was more due to an increase in the weight of 1000 grains than to a change in the amount of grain in the cob.