Effect of Coffee Husk Compost and NPSB Fertilizers on Selected Soil Chemical Properties of Potato Field in Chora District, South West Ethiopia

Table 4

The main effect of CHC and NPSB fertilizers on exchangeable K⁺ and Na⁺ of soils of potato field.

Treatment	Exch.K^+ (meq 100 g^−1)	Exch. Na^+ (meq 100 g^−1)
CHC (t ha^−1)
0	0.61^d	0.032^d
2.5	1.56^c	0.036^c
5	1.87^b	0.040^b
7.5	2.12^a	0.054^a
F test
NPSB (kg ha^−1)
0	1.72^a	0.040^a
112.5	1.62^a	0.039^a
150	1.50^b	0.041^a
187.5	1.32^c	0.041^a
F test		^NS
LSD	0.097	0.002
CV (%)	7.54	6.24

Means sharing the same letter within a column are not significantly different according to LSD at 5% level of significance; CV = coefficient of variation;  = significant at ; ^NS = not significant; Exch. K⁺ = exchangeable potassium; Exch. Na⁺ = exchangeable sodium.