Economic Performance and Nutrient Use Efficiency of Onion (Allium Cepa L.) Under N, K and S Nutrient Combinations in Northern Ethiopia

Table 3: Onion yield parameters as affected by nitrogen, potassium and sulfur nutrient levels.

Nutrient Levels (Treatments)	Bulb Diameter (cm)	Fresh Bulb Weight (g)	Dry Bulb Weight (g)	Total Bulb Yield (Mg ha^-1)
N₀S₀K₀ (control)	3.98^m	57.65^l	15.44^h	9.97^k
N₀S₀K₄₅	4.05^m	59.54^l	15.79^h	10.90^k
N₀S₀K₆₇	4.23^lm	69.75^kl	17.15^gh	12.10^jk
N₀S₁₅K₀	4.80^klm	84.53^jkl	18.18^gh	13.60^ij
N₀S₁₅K₄₅	5.68^jkl	89.51^jkl	19.04^gh	15.50ⁱ
N₀S₁₅K₆₇	5.02^kl	98.13^ijk	20.65^g	14.72^ij
N₆₉S₀K₀	5.78^ijk	120.27^hij	26.37^f	18.31^h
N₆₉S₀K₄₅	5.88^hij	126.12^ghi	27.35^f	18.90^h
N₆₉S₀K₆₇	6.1^ghij	135.59^fgh	28.76^f	19.90g^h
N₆₉S₁₅K₀	6.6^fghi	156.27^efg	34.67^e	21.80^fg
N₆₉S₁₅K₄₅	6.72^fgh	157.82^efg	35.71^de	22.53^ef
N₆₉S₁₅K₆₇	6.85^efg	166.04^def	37.11^de	23.60^def
N₉₂S₀K₀	7.57^def	175.28^cde	36.92^de	25.00^cde
N₉₂S₀K₄₅	6.68^cde	180.85^bcde	37.92^cde	25.51^cd
N₉₂S₀K₆₇	7.82^bcd	212.8^ab	39.32^bcd	26.50^bc
N₉₂S₁₅K₀	8.43^bc	206.43^abc	42.30^abc	28.40^ab
N₉₂S₁₅K₄₅	8.54^b	195.78^abcd	43.22^ab	29.11^ab
N₉₂S₁₅K₆₇	8.64^a	220.75^a	44.70^a	30.17^a
CV	4/24	8.60	7.71	5.87
Significance level	**	**	**	**

Treatments not connected by the same letter for a growth or yield parameter are significantly different at 99% probability level. ** stands significant at P<0.01.