Gypsum and Phosphorus Influence the Initial Growth of <i>Schinus Terebinthifolius</i> Raddi

Carnevali, Natália Hilgert de Souza; Marchetti, Marlene Estevão; Carnevali, Thiago de Oliveira; Vieira, Maria do Carmo; Silva, William de Andrade

doi:10.1590/2179-8087.122917

Acessibilidade / Reportar erro

Brasil

Español English

sumário « anterior atual seguinte »

Sumário

ORIGINAL ARTICLE, Silviculture • Floresta Ambient. 27 (3) • 2020 • https://doi.org/10.1590/2179-8087.122917 copy

Gypsum and Phosphorus Influence the Initial Growth of Schinus Terebinthifolius Raddi

Authorship SCIMAGO INSTITUTIONS RANKINGS

Abstract

Because of the lack of agronomic information regarding cultivation of the pink pepper (Schinus terebinthifolius), this study aimed to verify the effect of gypsum and phosphorus on the initial growth and how they affect soil fertility. The treatments consisted of four levels of agricultural gypsum (0; 750; 1,500, and 2,250 mg kg^-1) and P₂O₅ (0; 41.7; 83.4, and 125.1 mg kg^-1), with a 4 × 4 factorial arrangement, in a completely randomized design with four replications. Morphological variables and nutritional content taken at 165 days after transplant were shown to be adequate to assess the initial growth and to show their nutritional requirements, indicating that plants are responsive to phosphorus. The association of higher gypsum and P₂O₅ levels promoted higher plant vigor and their application to the soil increased the availability of calcium, phosphorus, and base saturation.

Keywords:
Brazilian pepper tree; nutritional requirements; dystrophic red latosol; leaching column

Nutrient	Regression equation	R²	P levels	Gypsum levels	Maximum value
N	$ŷ = 109.124 + 0.0322 * G + 1.602 * P - 0.006 * P^{2}$	0.60	125.1	2,250	288.1
P	$ŷ = 41.5102 + 0.0178 * G + 0.3231 * P$	0.62	125.1	2,250	121.9
K	$ŷ = 69.77 + 0.046 * G + 1.134 * P - 0.0035 * P^{2} - 0.003 * GP$	0.61	66.7	2,250	188.0
Ca	$ŷ = 37.504 + 0.0146 * G + 0.896 * P - 0.0039 * P^{2}$	0.75	125.1	2,250	121.4
Mg	$ŷ = 12.25 + 0.0043 * G + 0.113 * P$	0.74	125.1	2,250	36
S	$ŷ = 63.68 + 0.054 G + 3.09 * P - 0.0102 P^{2} - 0.00036 GP$	0.60	125.1	2,250	312.6

Levels (G × P)	Depth (cm)
Levels (G × P)	0-10	10-20	20-30	30-40	40-50	50-60
0 × 0	0.809 Ag	0.173 Bh	0.078 Bc	0.052 Bc	0.046 Ba	0.059 Ba
0 × 41.7	3.047 Ad	0.687 Bcde	0.401 Cab	0.269 DEabc	0.175 Da	0.092 Ea
0 × 83.4	3.127 Ad	0.435 Befgh	0.262 CDbc	0.202 Dabc	0.162 Da	0.113 DEa
0 × 125.1	3.787 Ab	0.725 Bbcd	0.403 Cab	0.230 CDabc	0.190 CDa	0.169 Da
750 × 0	2.061 Af	0.253 Bh	0.182 Bbc	0.181 Babc	0.146 Ba	0.101 Ba
750 × 41.7	3.239 Acd	0.336 Bgh	0.258 Bbc	0.223 Babc	0.163 Ba	0.147 Ba
750 × 83.4	3.829 Ab	1.029 Ba	0.581 Ca	0.406 Cda	0.208 Da	0.145 Ea
750 × 125.1	4.324 Aa	0.975 Bab	0.666 Ca	0.340 Dab	0.231 Da	0.221 Da
1,500 × 0	1.905 Af	0.372 Bfgh	0.192 CDbc	0.154 CDbc	0.126 Da	0.112 Da
1,500 × 41.7	2.354 Ae	0.329 Bgh	0.242 Bbc	0.190 Babc	0.144 Ba	0.141 Ba
1,500 × 83.4	3.947 Ab	1.012 Ba	0.431 Cab	0.369 CDab	0.244 Ca	0.182 Da
1,500 × 125.1	3.494 Ac	0.950 Babc	0.607 Ca	0.363 Dab	0.243 Da	0.229 Da
2,250 × 0	2.619 Ae	0.352 Bfgh	0.228 Bbc	0.213 Babc	0.208 Ba	0.202 Ba
2,250 × 41.7	3.141 Ad	0.552 Bdefg	0.287 Cbc	0.218 Cabc	0.146 Ca	0.137 Ca
2,250 × 83.4	3.931 Ab	0.617 Bdef	0.445 BCab	0.314 CDabc	0.203 Da	0.168 Da
2,250 × 125.1	3.876 Ab	1.013 Ba	0.648 Ca	0.354 Dab	0.260 Da	0.242 Da

Element	Regression equation	R²
Depth
Al³⁺	$ŷ = - 0.95 + 0.12 * D - 0.0014 * D^{2}$	0.92
P	$ŷ = 2.01 - 0.041 * D + 0.0005 * D^{2}$	0.83
H+Al	$ŷ = 13.9 - 0.0073 * D$	0.81
pH	$ŷ = 5.63 - 0.055 * D + 0.00073 * D^{2}$	0.90
Depth and gypsum
Ca	$ŷ = 6.78 - 0.29 * D + 0.0033 * D^{2} + 0.00014 * G$	0.85
S	$ŷ = 14.56 - 0.03 * D + 0.0004 * D^{2} + 0.0003 * G - 0.000007 * DG$	0.77
Depth and P2O5
K	$ŷ = 3.92 - 0.12 * D + 0.0013 * D^{2} - 0.0076 * P + 0.00022 * DP$	0.70
S	$ŷ = 14.92 - 0.03 * D + 0.004 * D^{2} + 0.0001 P + 0.000005 * DP$	0.88
SB	$ŷ = 15.2 - 0.59 * D + 0.006 * D^{2} - 0.007 P + 0.0001 DP$	0.84
V%	$ŷ = 57.9 - 1.93 * D + 0.02 * D^{2} - 0.02 * P + 0.0005 DP$	0.86
Gypsum and P2O5
P	$ŷ = 1.114 - 0.000007 G + 0.00000004 G^{2} + 0.0034 * P - 0.0000008 GP$	0.61
Ca	$ŷ = 1.97 - 0.0002 G + 0.0000001 G^{2} - 0.004 * P + 0.000002 * GP$	0.59
V%	$ŷ = 25.04 - 0.002 * G + 0.000001 * G^{2} - 0.02 * P + 0.00001 * GP$	0.53

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

Acompanhe os números deste periódico no seu leitor de RSS

[1] CORRESPONDENCE TO Natália Hilgert de Souza Carnevali Universidade Federal do Sul e Sudeste do Pará (Unifesspa), Rua Constantino Ferreira Viana, s/n, quadra 8, Centro, CEP 68380-000, São Félix do Xingu, PA, Brasil e-mail: nataliahilgert@unifesspa.edu.br