Plant and Soil Science

The availability of soil moisture in soybeans can vary depending on many environmental factors, as well as growing technologies. The purpose of our research was to determine the influence of the width of the row and the density of plant standing on the reserves of available moisture and total water consumption in the cultivation of various soybean varieties. The results of the study showed that there is a positive correlation coefficient of 0.53 between the yield and the total water consumption in the layer of soil 0-100 cm. This means that in cases with higher yield, we observe more intensive water consumption. The average experimental value of the total water consumption was 137.8 mm, and the water consumption coefficient was 39.16 mm per tonne of yield, which means that for the formation of one ton of crop, soy plants spent 39.16 mm of soil moisture. The largest indicator of the total water consumption of 163.08 mm was recorded in the Mentor variety, while growing with density of 600 thousand plants per hectare and with width of the row equal to 12.5 cm.

soybean, row spacing, variety, total water consumption, moisture available, yield, density, seed rate