Field experiments were conducted in an acidic soil to assess the respons.e of
potassium (K20) in potato and its applicatiOf! methods. Six potassium levels (0, 50, 75,
100 kg ha·1 basal application, 50 kg basal plus 50 kg top dressed, and 50 kg basal
plus 50 kg sprayed) were tested to see the effects of potassium levels and methods of
their applications during three consecutive years (2000, 2001 & 2002). A randomized
complete block design (RCBD) with 3 replications was employed in the experiments.
The variety used in the experiment was MS 42. Three years mean results in tuber
production showed that a maximum of 473.33 g plant"' of tubers were produced when
100 kg of potassium was applied basally. Highest tuber yields at 24.75 t ha-1 were
produced when 50 kg potassium was applied basally and 50 kg top- dressed, a total of
100 kg ha- 1• It can be recommended that a total of 100 K20 kg ha·' could be profitable.
Despite very high potassium content there is a response to potassium fertilization.

Field experiments were conducted in an acidic soil to assess the respons.e of
potassium (K20) in potato and its applicatiOf! methods. Six potassium levels (0, 50, 75,
100 kg ha·1 basal application, 50 kg basal plus 50 kg top dressed, and 50 kg basal
plus 50 kg sprayed) were tested to see the effects of potassium levels and methods of
their applications during three consecutive years (2000, 2001 & 2002). A randomized
complete block design (RCBD) with 3 replications was employed in the experiments.
The variety used in the experiment was MS 42. Three years mean results in tuber
production showed that a maximum of 473.33 g plant"' of tubers were produced when
100 kg of potassium was applied basally. Highest tuber yields at 24.75 t ha-1 were
produced when 50 kg potassium was applied basally and 50 kg top- dressed, a total of
100 kg ha- 1• It can be recommended that a total of 100 K20 kg ha·' could be profitable.
Despite very high potassium content there is a response to potassium fertilization.