. 2024 Feb 2;10(3):e25541. doi: 10.1016/j.heliyon.2024.e25541

Table 3.

Influences of specific-site nutrient management on total nitrogen, phosphorous, potassium, calcium and magnesium uptakes in pineapple in acid sulfate soil in Vi Thanh city and Long My district.

Location	Treatment	Total uptakes of N, P, K, Ca and Mg in plants (kg ha⁻¹)
Location	Treatment	N	P	K	Ca	Mg
VT	No fertilizer	84.04^d	7.25^d	29.17^d	9.53^e	9.66^e
	NPKCaMg	289.1^a	25.4^a	137.4^a	41.9^a	39.8^a
	PKCaMg	122.3^c	13.2^c	73.82^c	25.0^c	22.9^c
	NKCaMg	201.6^b	12.1^c	92.07^b	30.0^b	28.2^b
	NPCaMg	190.6^b	16.9^b	62.07^c	28.1^bc	26.3^b
	NPKMg	196.5^b	17.4^b	100.4^b	16.5^d	26.9^b
	NPKCa	201.8^b	17.6^b	103.1^b	31.5^b	18.6^d
	FFP	194.6^b	17.4^b	97.92^b	31.1^b	27.1^b
LM	No fertilizer	139.4^d	9.50^e	43.91^e	13.6^e	14.9^d
	NPKCaMg	327.4^a	29.3^a	166.0^a	48.9^a	43.1^a
	PKCaMg	170.6^c	16.8^c	115.3^c	37.2^bc	29.7^b
	NKCaMg	253.4^b	14.3^d	135.9^b	38.7^b	31.3^b
	NPCaMg	254.6^b	19.2^bc	82.68^d	39.5^b	30.8^b
	NPKMg	247.4^b	20.0^b	127.5^bc	22.3^d	29.1^b
	NPKCa	245.7^b	20.1^b	132.9^bc	38.1^b	22.1^c
	FFP	242.4^b	19.4^bc	125.1^bc	33.8^c	31.3^b
VT	F	*	*	*	*	*
VT	CV (%)	8.91	10.1	13.6	14.3	10.8
LM	F	*	*	*	*	*
LM	CV (%)	8.39	11.5	12.1	9.05	10.9

Note: VT: Vi Thanh city. LM: Long My district. In the same column, numbers followed by the same letters were different insignificantly from each other via Duncan post-hoc test.*: different at 5 % significance. ns: not significant. NPKCaMg: full fertilization; PKCaMg: fertilization without nitrogen; NKCaMg: fertilization without phosphorous; NPCaMg: fertilization without potassium; NPKMg: fertilization without calcium; NPKCa: fertilization without magnesium; FFP: farmers' fertilizing practice.