Vetiver growth with different fertilizations in quartzite mining tailings

Amaral, Cristiany Silva; Silva, Enilson de Barros; Pereira, Israel Marinho; Amaral, Wander; Silva, Michele Aparecida Pereira da; Nardis, Bárbara Olinda

doi:10.1590/2179-8087.026316

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Original Article, Conservation of Nature • Floresta Ambient. 26 (1) • 2019 • https://doi.org/10.1590/2179-8087.026316 copy

Vetiver growth with different fertilizations in quartzite mining tailings

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT

The objective of this work was to evaluate the behavior of Vetiveria zizanioides when grown in tailings from quartzite mining. A greenhouse experiment was conducted in a completely randomized experimental design with four replicates. The treatments consisted of five combinations of organic (OF) and mineral fertilization (MF) and an additional treatment of the tailings without OF or MF (control). The combinations were 0%OF/100%MF, 25%OF/75%MF, 50%OF/50%MF, 75%OF/25%MF, and 100%OF/0% MF. The doses of 100% of MF and OF were 0.025 g N, 0.025 g P₂O₅, 0.020 g K₂O, and 5 g of corral manure per kg of quartzite tailings. V. zizanioides responded to MF at the recommended doses of 0.025 g N, 0.025 g P₂O₅, and 0.020 g K₂O per kg of tailings. It is concluded that quartzite tailings form a favorable habitat for V. zizanioides growth, mainly after being altered by MF.

Keywords:
vetiveria zizanioides; nutrient concentrations; nutritional status; accumulation of nutrients; recommended doses

pH_water	P	K		Ca	Mg	Al	T		m	V		OM	Gravel/ Pebbles	Sand	Silt	Clay
pH_water	- mg dm^-3 --			------ cmol_cdm^-3 -------					---- %------			------------------ g kg^-1 ---------------
5.0	1.2	5.3		0.5	0.2	0.2	1.7		24	41		7.1	340.4	554.0	99.0	6.6

MF	OF	N	P₂O₅	K₂O	Corral manure
-------------- % -------------		------------------------------------ g kg^-1 -----------------------------------
100	0	0.025	0.025	0.020	0
75	25	0.019	0.019	0.015	1.25
50	50	0.013	0.013	0.010	2.50
25	75	0.006	0.006	0.005	3.75
0	100	0	0	0	5.00
Control		0	0	0	0

Nutrient⁽1⁾	Regression equation	R²	MF ⁽2⁾	Control (0% OF) ⁽3⁾
N	ŷ = ȳ = 17.10	-	17.10 ⁽³⁾	21.99 ^* * Differentiates the control from the other treatments by the F-test at 5%;
P	ŷ = 1.06 + 0.0083 ^ significant at 1% by the t test for the coefficients of the regression equations; x	0.90	1.89	0.59*
K	ŷ = 15.53 + 0.0316**x	0.92	18.69	10.23*
Ca	ŷ = ȳ = 1.26	-	1.26 ⁽³⁾	2.16*
Mg	ŷ = ȳ = 0.29	-	0.29 ⁽³⁾	0.39*
S	ŷ = 2.49 + 0.0303**x	0.85	5.52	2.32*
B	ŷ = ȳ = 43.38	-	43.38 ⁽³⁾	62.19*
Cu	ŷ = 13.20 – 0.0577**x	0.81	7.43	32.38*
Fe	ŷ = ȳ= 68.44	-	68.44 ⁽³⁾	111.10*
Mn	ŷ = 183.11 – 0.9783**x	0.92	85.29	59.78*
Zn	ŷ = 46.34 – 0.3360x + 0.0065x²	0.98	77.67	44.70*

Nutrient ⁽1⁾	Regression equation	R²	MF ⁽2⁾	Control (OF) ⁽3⁾
Shoot
N	ŷ = 30.93 + 0.1501 ^ significant at 1% by the t test for the regression equation coefficients; x	0.88	45.94	22.00 ^* * Differentiates the control of the other treatments by the F-test at 5%;
P	ŷ = 2.30 + 0.0201**x	0.91	4.31	0.59*
K	ŷ = 32.52 + 0.1165**x	0.91	44.17	10.23*
Ca	ŷ = ȳ = 2.84	-	2.84 ⁽³⁾	2.16
Mg	ŷ = ȳ = 0.64	-	0.64 ⁽³⁾	0.39*
S	ŷ = 4.43 + 0.0963**x	0.97	14.06	2.32*
B	ŷ = 72.48 + 0.9437x - 0.0061x²	0.93	105.85	62.23*
Cu	ŷ = 22.27 + 0.1877x - 0.0024x²	0.87	17.04	32.40*
Fe	ŷ = ȳ = 152.65	-	152.65 ⁽³⁾	111.18*
Mn	ŷ = 383.83 - 1.7897**x	0.84	204.86	59.82*
Zn	ŷ = 94.39 - 0.8229x + 0.0189x²	0.99	201.10	44.73*
Roots
N	ŷ = 66.69 - 0.3819x + 0.0107x²	0.96	135.50	59.94*
P	ŷ = 0.63 + 0.0053**x	0.90	1.16	0.41*
K	ŷ = 28.16 + 0.1084**x	0.93	24.22	14.81*
Ca	ŷ = 15.19 + 0.4572**x	0.95	60.91	16.39*
Mg	ŷ = ȳ = 1.43	-	1.43 ⁽³⁾	0.68*
S	ŷ = 25.97 + 0.4058**x	0.85	66.55	10.24*
B	ŷ = 348.99 - 1.9523x + 0.0246x²	0.86	399.76	300.98
Cu	ŷ = 37.17 - 0.3581x + 0.0049x²	0.86	50.36	24.89*
Fe	ŷ = 6.852.51 - 151.2001x + 1.2415x²	0.90	4.147.50	3.220.33
Mn	ŷ = 570.10 + 5.6924x - 0.1072x²	0.99	67.34	16.22*
Zn	ŷ = 360.42 + 7.7801**x	0.90	1.138.43	98.58*

Instituto de Florestas da Universidade Federal Rural do Rio de Janeiro Rodovia BR 465 Km 7, CEP 23897-000, Tel.: (21) 2682 0558 | (21) 3787-4033 - Seropédica - RJ - Brazil
E-mail: floram@ufrrj.br

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[1] Cristiany AmaralCampus JK, Rodovia MGT 367, Km 583, 5000, Alto da Jacuba, CEP 39100-000, Diamantina, MG, Brasil e-mail: cristianyamaral@yahoo.com.br