Studies were carried out in the Department of Pomology on the area of the Agricultural and Pomological Experimental Farm in Przybroda belonging to the Agricultural University in Poznań. In the years 2005–2006, apple-tree rootstocks M9 were planted into rhizoboxes with soil taken from different orchard localities. It was found that the previous method of soil use had an essential effect on the growth and the chemical composition of the planted rootstocks. Cultivation of rootstocks in rhizoboxes showed that the growing for many years of the same species deteriorates the growth. On the other hand, a change in the grown species decreases the risk of soil fatigue.

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