Response of Potato (Solanum tuberosum L.) to NPS Fertilizer Rates and Inter-Row Spacing in Kechi District, South Western Ethiopia

Table 5

Main effects of inter-row spacing and NPS fertilizer rate on tuber size distribution.

Treatments	VSST (%)	SST (%)	MST (%)	LST (%)
Inter-row spacing (cm)
45	12.632^a	21.393^a	42.294	23.681^c
55	10.692^a	17.796^ab	39.776	31.736^b
65	6.440^b	15.312^bc	43.436	34.868^ab
75	6.773^b	12.981^c	39.663	40.583^a
85 significance level	6.936^b	13.546^bc	42.339 NS	37.179^ab
LSD (0.05)	3.9867	4.5827	NS	7.0599
NPS fertilizer rate (kg/ha)
0	17.421^a	21.102^a	37.396	24.081^d
50	13.427^a	20.927^a	40.000	25.646c^d
100	8.089^b	16.717^ab	42.169	33.026^bc
150	6.844^b	14.087^b	40.506	38.563^ab
200	5.803^b	12.360^b	39.944	41.893^a
250 significance	5.984^b	12.041^b	43.595 NS	38.447^ab
LSD (0.05)	4.3672	5.0201	NS	7.7337
CV (%)	38.49	35.42	21.54	31.48

VST=very small-sized tuber number (%); SST=small-sized tuber number (%); MST = medium-sized tuber number (%); LST = large-sized tuber number (%);  = significant at 1% significance levels; LSD (0.05) = least Significant Difference at 5% level; CV = coefficient of variation; means in column followed by the same letters are not significantly different at 5% level of significance.