Soil Properties, Crop Yield, and Economic Return in Response to Lime Application on Acidic Nitisols of Southern Highlands of Ethiopia

Table 7

Variance ratios and probabilities of single degrees of freedom of orthogonal contrasts for the effects of different rates of liming on crop growth and yield on Nitisols in southern Ethiopia.

Parameters	Control vs. (T2–T6)	T2 vs. T3–T6	T3 vs. T4–T6	T4 vs. T5-T6
Plant height
Variance ratio	425.6	262.5	0.18	26.3
F-probability	0.0067	0.0282	0.9510	0.4644
Number of tillers
Variance ratio	2.86	0.15	5.23	2.88
F-probability	0.3200	0.8198	0.1831	0.3183
Spike length
Variance ratio	1.79	0.34	0.80	0.11
F-probability	0.0976	0.4618	0.2601	0.6704
Grain yield
Variance ratio	1.67E + 06	863773	42583	1.19E + 06
F-probability	0.0151	0.0710	0.6776	0.0363
Total biomass
Variance ratio	5.37E + 07	8.89E + 06	2.56E + 07	3.35E + 07
F-probability	0.0391	0.3818	0.1444	0.0972
Straw yield
Variance ratio	3.65E + 07	4.22E + 06	2.77E + 07	2.21E + 07
F-probability	0.0514	0.4911	0.0864	0.1235
Harvest index
Variance ratio	9.34	1.63	112.50	4.00
F-probability	0.3551	0.6966	0.0034	0.5428
1000 grain weight
Variance ratio	40.898	1.80	10.20	10.13
F-probability	0.3371	0.8387	0.6289	0.6300