Nitrogen and Potassium Concentrations in the Nutrients Solution for Melon Plants Growing in Coconut Fiber without Drainage

Table 2

Analysis of variance results for nitrogen leaf level (LN) and potassium leaf level (LK), N-NO₃⁻, hydrogen ion potential (pH), electrical conductivity (CE), and N (NS) and K (KS) concentrations in the solution of substratum.

Treatments	LN	LK	pH	CE	NS	KS
	(g kg^−1)		(dS m^−1)	(mg L^−1)
N
N1	39.31	34.80	5.30	0.60	8.97	105.83
N2	42.51	33.13	5.48	0.58	26.55	119.83
N3	47.52	31.57	5.07	0.67	56.12	126.00
N4	50.59	32.16	4.77	0.70	78.54	127.92
F	37.17**	7.43**	74.05**	7.29**	90.44**	6.01**
K
K1	45.12	28.22	4.96	0.46	32.82	58.75
K2	45.03	31.86	5.14	0.60	45.24	104.17
K3	44.12	34.43	5.23	0.74	47.57	147.50
K4	45.67	37.15	5.29	0.75	44.56	169.17
F	0.60^NS	53.84**	16.44**	42.15**	4.15*	144.11**
N × K	0.93^NS	2.63*	2.99*	11.86**	2.39*	10.58**
C.V. (%)	6.37	5.46	2.39	11.50	26.45	11.77

**, *, NS: Significant at the levels of 1 and 5% and non significant, respectively, according to the 𝐹 test.