The effect of cultivation procedure on the liability to freezing of ground-keepers

Summary In a model experiment it was shown how potato tubers after harvest present on or in the soil are moved by ploughing and cultivation. It was demonstrated that as a result of ploughing many tubers were moved to a greater depth, while if a cultivator was used the vertical movement was only slight. This indicates that in areas where winter temperatures are sufficiently low, volunteer potatoes can be controlled reasonably well if, before the winter, fields on which potatoes have been grown are cultivated by a non-turning soil treatment with suitable machinery, instead of ploughing. *** DIRECT SUPPORT *** A00C5013 00005