EN
A laboratory technique of soil water tension and penetration resistance measurement is presented. On the soil placed in pots different pressure of 133 and 400 kPa was exerted with duration of 15 and 30 seconds. The readings of soil water tension data were taken automatically every 5 minutes, and stored in the computer memory. Changes of water tension due to drying up of the differently compacted soil were recorded on two levels: at 10 and 25 cm depth. It was found that higher increments of the soil water tension occured in the top layer and in the less compacted soil. Coefficient of correlation between soil penetration resistance and moisture content turned out to be high and its average value was 82,5 per cent.