In this study, it is aimed to develop an automatic soil sampling machine. The machine consists of mechanics, hydraulics and electronical systems for taking soil sample. In addition, there is a GPS module in the system to determine the location of soil sampling point. The developed machine is attached to the tractor with three-point hitch system and can take samples from the depth of 30 cm till the resistance of 4 MPa. In field tests, it was determined that the machine could take 40-162 gr soil sample in one stroke depending on soil penetration resistance.

The effect of the machine operating speed on the amount of soil samples is researched also. In the tests, the amount of soil samples taken at the operating speed of 0.6 m/s, 0.12 m/s, 0.22 m/s was analysed. Statistically, an important difference wasn’t determined according to the one way anova analysis which was carried out on the samples (P>0.05).

As a result of field tests, it is determined that the machine can be used for the purpose of soil sampling. Besides, the sampling is practiced with the help of GPS module by localizing geographical. The received geodata is in the form of being used to create a topographic variability maps.

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