Table 2. Main effects of seaweed extract sprays on the leaf mineral and chlorophyll contents of Valencia orange trees in the 2021 and 2022 seasons.

Seasons	Treatments	N (%)	P (%)	K (%)	Ca (%)	Mg (%)	Fe (ppm)	B (ppm)	Chlorophyll (SPAD)
2021	Control	1.22c	0.11c	0.69c	2.75c	0.24c	63.31c	29.56c	38.71c
	5 g/L SW	1.70b	0.26b	1.11b	3.46b	0.39b	90.38b	45.81b	55.19b
	10 g/L SW	2.25a	0.43a	1.41a	4.10a	0.54a	120.38a	63.56a	65.81a
	LSD0.05	0.029	0.008	0.031	0.035	0.008	1.671	1.151	0.868
2022	Control	1.36c	0.12c	0.78c	2.83c	0.26c	69.19c	30.63c	40.02c
	5 g/L SW	1.93b	0.28b	1.34b	3.59b	0.46b	99.25b	51.88b	57.76b
	10 g/L SW	2.57a	0.51a	1.75a	4.28a	0.80a	134.56a	81.19a	72.61a
	LSD0.05	0.022	0.010	0.020	0.027	0.016	1.969	1.177	0.193

Note:

Mean values within a column for each season that are followed by different letters are significantly different at P ≤ 0.05.