Fluxo de biomassa e eficiência hídrica da palma forrageira sob diferentes manejos no Semiárido Brasileiro

Lopes, Marcos Neves; Cândido, Magno José Duarte; Gomes, Ellen da Costa; Pompeu, Roberto Cláudio Fernandes Franco; Silva, Rodrigo Gregório da

doi:10.5935/1806-6690.20180037

Marcos Neves Lopes ^**Author for correspondence

Pesquisador Visitante do Departamento de Zootecnia, CCA/UFC, Fortaleza-CE, Brasil, nevesvv@yahoo.com.br

Magno José Duarte Cândido

Departamento de Zootecnia, CCA/UFC, Fortaleza-CE, Brasil, magno@ufc.br

Ellen da Costa Gomes

Programa de Doutorado Integrado em Zootecnia/UFC/UFPB/UFRPE, Fortaleza-CE, Brasil, ellen_gomes_@hotmail.com

Roberto Cláudio Fernandes Franco Pompeu

Embrapa Caprinos e Ovinos, Sobral-CE, Brasil, roberto.pompeu@embrapa.br

Rodrigo Gregório da Silva

Instituto Federal de Educação, Ciência e Tecnologia do Ceará/IFCE, Campus Limoeiro do Norte, Limoeiro do Norte-CE, Brasil, rodrigogregorio@hotmail.com

*Author for correspondence

Region	P	K	Na⁺	Ca²⁺	Mg²⁺	Al³⁺	SB	ECEC	pH	OM
Region	------------ mg dm^-3 ------------			----------------------- cmol_c dm^-3 -----------------------					H₂O	g kg^-1
Quixadá	5.0	260.0	20.0	3.40	3.40	0.00	7.55	7.55	6.1	5.28
Tejuçuoca	6.0	243.0	7.0	4.00	3.20	0.00	7.85	7.85	6.2	8.17

Region	Coarse sand	Fine sand	Silt	Clay	Dp	Textural classification
Region	------------------------------ g kg^-1 -------------------------------				g cm^-3	Textural classification
Quixadá	513	363	89	35	2.62	Sand
Tejuçuoca	164	590	153	93	2.57	Sandy loam

Region of Quixadá
SV	DF	MEAN SQUARES
SV	DF	PRFOC	PRSOC	PRTOC	PRFoOC	PRFiOC	FPR	HFPR	RUE
BL	3	0.56^ns ns non-significant;	0.067^ns ns non-significant;	0.51^ns ns non-significant;	-	-	0.42^ns ns non-significant;	0.070^ns ns non-significant;	0.071^ns ns non-significant;
NP	8	5.39***	9.85***	1.44**	-	-	18.7***	10.7***	4.23***
HF	1	152.6***	240.3***	0.112^ns ns non-significant;	-	-	327.0***	229.3***	39.0***
NP*HF	8	3.98***	2.1***	2.0***	-	-	4.5***	2.25***	0.79***
RE	27	0.38	0.088	0.33	-	-	0.47	0.13	0.079
CV (%)		18.5	8.1	156.5	-	-	12.7	9.4	12.1
Region of Tejuçuoca
BL	3	1.14^ns ns non-significant;	0.073^ns ns non-significant;	0.22^ns ns non-significant;	2.9^ns ns non-significant;	0.73^ns ns non-significant;	2.6^ns ns non-significant;	0.45^ns ns non-significant;	0.86^ns ns non-significant;
NP	8	17.7***	33.8***	97.7***	42.8***	10.7***	300.1***	205.5***	75.8***
HF	1	66.5***	8.0*	141.0***	852.8***	65.7***	314.2***	713.3***	353.1***
NP*HF	8	6.6**	15.0***	74.7***	22.7***	10.7***	117.8***	77.2***	31.5***
RE	27	1.6	1.3	1.2	3.08	1.2	2.0	0.87	0.64
CV (%)		22.1	13.5	10.3	39.7	112.0	5.9	5.0	6.0

Region	HF	Model
Quixadá	Annual	PRFOC = 4.84313 + 0.000722646^∆N - 0.0234742P + 0.000178444*P²; R² = 0.47
Quixadá	Biennal	PRFOC = - 1.09449 + 0.0279673*N - 0.000130477N² + 0.0371662P - 0.000155765*P²; R² = 0.67
Tejuçuoca	Annual	PRFOC = 4.41612 + 0.00293841^∆N + 0.0201603**P; R² = 0.29
Tejuçuoca	Biennal	PRFOC = 3.00493 + 0.0424893N - 0.000151716N² - 0.00569146^∆P; R² = 0.33
Quixadá	Annual	PRSOC = 2.72397 + 0.0317897N - 0.000161934N² + 0.0162369***P; R² = 0.47
Quixadá	Biennal	PRSOC = -0.722623 + 0.0314237*N - 0.000134865N² + 0.0111712**P; R² = 0.77
Tejuçuoca	Annual	PRSOC = - 0.125197 + 0.105434*N - 0.000407519N² + 0.0634059P - 0.000246484*P²; R² = 0.72
Tejuçuoca	Biennal	PRSOC = 2.99822 + 0.0397651^∆N + 0.000585153N² + 0.0143128^∆P + 0.000531075P² - 0.00127367**NP; R² = 0.53
Quixadá	Annual	PRTOC = 1.01213 - 0.0108578^∆N - 0.000180155^∆N² - 0.00162963^∆P - 0.000250351P² + 0.000533980NP; R² = 0.42
Quixadá	Biennal	PRTOC = - 1.15166 + 0.0116643N + 0.0000869623N² + 0.0128903P + 0.000081579P² - 0.000273843***NP; R² = 0.66
Tejuçuoca	Annual	PRTOC = - 1.83416 + 0.152784*N - 0.000549447N² + 0.0273561^∆P; R² = 0.42
Tejuçuoca	Biennal	PRTOC = - 0.264267 + 0.146886**N + 0.00046194N² + 0.0561381P + 0.000529566P² - 0.0018007**NP; R² = 0.81
Tejuçuoca	Annual	PRFoOC = -1.34076 + 0.00965625N + 0.0312191P - 0.000142632**P²; R² = 0.58
Tejuçuoca	Biennal	PRFoOC = 0.627711 + 0.116719N - 0.00139207N² + 0.102555P - 0.00145069P² + 0.00183539NP; R² = 0.81
Tejuçuoca	Biennal	PRFiOC = - 3.82582 + 0.0608798N - 0.00016324^∆N² + 0.0657698P - 0.000395523***P²; R² = 0.60

Region	HF	Modelo
Quixadá	Annual	FPR = 4.43216 + 0.00893378^∆N + 0.0219405***P; R² = 0.55
Quixadá	Biennal	FPR = - 1.915 + 0.05118*N - 0.000223316N² + 0.0516218P - 0.000188619*P²; R² = 0.77
Tejuçuoca	Annual	FPR = 4.67329 + 0.217335*N - 0.000790254N² + 0.0546151*P; R² = 0.47
Tejuçuoca	Biennal	FPR = 16.296 + 0.11303***N + 0.0135214^∆P - 0.000202356^∆P²; R² = 0.84
Quixadá	Annual	HFPR = 2.65839 + 0.0323217N - 0.000155616N² + 0.0167201***P; R² = 0.51
Quixadá	Biennal	HFPR = - 0.763216 + 0.0322664*N - 0.000126792N² + 0.0117261**P; R² = 0.78
Tejuçuoca	Annual	HFPR = - 3.1712 + 0.223967*N - 0.000838105N² + 0.115105P - 0.000403252*P²; R² = 0.57
Tejuçuoca	Biennal	HFPR = 11.3636 + 0.100884**N + 0.039593P - 0.000304256**P²; R² = 0.86

Combinations of N and P₂O₅ (kg ha^-1 year^-1)
HF	10/70	70/10	70/70	70/130	100/100	130/70	130/130	130/190	190/130
First order cladode production rate (kg ha^-1 day^-1)
Annual	4.2 A	4.9 A	2.8 A	4.5 A	6.5 A	3.9 A	4.3 A	7.0 A	4.8 A
Biennal	0.65 B	0.94 B	2.0 B	3.1 B	3.0 B	1.4 B	2.2 B	1.5 B	2.1 B
Second order cladode production rate (kg ha^-1 day^-1)
Annual	3.8 A	3.9 A	6.9 A	5.4 A	7.5 A	3.9 A	5.4 A	7.2 A	5.6 A
Biennal	0.45 B	0.82 B	1.1 B	2.2 B	3.3 B	1.7 B	2.5 B	2.9 B	1.9 B
Third order cladode production rate (kg ha^-1 day^-1)
Annual	0.04 A	0.0 A	0.0 A	0.06 B	0.0 B	0.0 B	2.58 A	0.0 B	0.97 A
Biennal	0.0 A	0.11 A	0.0 A	0.77 A	0.56 A	0.45 A	0.0 B	0.43 A	0.62 B
Forage production rate (kg ha^-1 day^-1)
Annual	5.3 A	6.6 A	5.7 A	6.8 A	9.9 A	6.2 A	7.8 A	11.1 A	8.1 A
Biennal	0.95 B	1.5 B	2.7 B	4.8 B	5.4 B	2.8 B	3.9 B	3.7 B	3.7 B
Harvested forage production rate (kg ha^-1 day^-1)
Annual	3.9 A	3.9 A	6.9 A	5.4 A	7.5 A	3.9 A	6.2 A	7.2 A	5.8 A
Biennal	0.45 B	0.86 B	1.1 B	2.5 B	3.6 B	2.1 B	2.5 B	3.3 B	2.4 B

Combinations of N and P₂O₅ (kg ha^-1 year^-1)
HF	10/70	70/10	70/70	70/130	100/100	130/70	130/130	130/190	190/130
First order cladode production rate (kg ha^-1 day^-1)
Annual	6.4 A	4.6 A	6.4 A	5.8 A	4.2 A	7.1 A	11.1 A	8.7 A	6.2 A
Biennal	2.8 B	5.5 A	5.9 B	4.9 B	2.6 B	5.7 B	6.1 B	5.1 B	4.8 B
Second order cladode production rate (kg ha^-1 day^-1)
Annual	4.6 A	5.5 B	8.1 B	9.6 A	7.5 A	11.9 A	12.4 A	9.8 A	8.4 B
Biennal	5.6 A	7.1 A	9.4 A	7.9 B	4.4 B	10.6 B	6.4 B	9.0 B	11.3 A
Third order cladode production rate (kg ha^-1 day^-1)
Annual	3.4 B	6.1 B	6.8 B	7.5 B	6.0 B	11.3 B	22.6 A	12.2 A	8.5 B
Biennal	5.6 A	12.7 A	9.2 A	13.9 A	13.9 A	14.6 A	11.4 B	11.1 B	17.2 A
Fourth order cladode production rate (kg ha^-1 day^-1)
Annual	0.29 B	0.0 B	0.0 B	1.2 B	1.1 B	1.2 B	3.0 B	0.30 B	1.8 B
Biennal	3.2 A	5.4 A	7.5 A	8.3 A	14.3 A	7.7 A	13.8 A	3.7 A	6.7 A
Fifth order cladode production rate (kg ha^-1 day^-1)
Annual	0.0 A	0.0 B	0.0 B	0.0 A	0.0 B	0.0 B	0.0 B	0.0 A	0.0 B
Biennal	0.0 A	0.22 A	0.88 A	0.0 A	6.6 A	3.7 A	2.2 A	0.0 A	3.6 A
Forage production rate (kg ha^-1 day^-1)
Annual	13.3 A	14.3 B	19.0 B	21.0 B	16.1 B	26.9 B	40.3 A	26.9 A	20.8 B
Biennal	13.5 A	25.2 A	25.2 A	27.2 A	26.4 A	31.4 A	29.0 B	25.3 B	34.7 A
Harvested forage production rate (kg ha^-1 day^-1)
Annual	6.9 B	9.7 B	12.6 B	15.2 B	11.9 B	19.8 B	29.2 A	18.1 B	14.6 B
Biennal	10.7 A	19.7 A	19.3 A	22.4 A	23.8 A	25.7 A	22.9 B	20.3 A	29.9 A

Region	HF	Model
Quixadá	Annual	RUE = 1.04127 + 0.0227177N - 0.0000897475N² + 0.00861484***P; R² = 0.60
Quixadá	Biennal	RUE = - 0.934865 + 0.0249851*N - 0.000109019N² + 0.0252008P - 0.0000920804*P²; R² = 0.77
Tejuçuoca	Annual	RUE = 3.23639 + 0.0875241*N - 0.00031325N² + 0.0289611**P; R² = 0.45
Tejuçuoca	Biennal	RUE = 4.31114 + 0.135228*N + 0.0535433P - 0.000692697**NP; R² = 0.93

[1] *Author for correspondence

Combinações de N e P₂O₅ (kg ha^-1 year^-1)
HF	10/70	70/10	70/70	70/130	100/100	130/70	130/130	130/190	190/130
Rain use efficiency (kg ha^-1 mm^-1) in Quixadá
Annual	2.1 A	2.6 A	2.2 A	2.7 A	4.4 A	2.7 A	3.5 A	4.4 A	3.2 A
Biennal	0.47 B	0.74 B	1.3 B	2.3 B	2.6 B	1.4 B	1.9 B	1.8 B	1.8 B
Rain use efficiency (kg ha^-1 mm^-1) in Tejuçuoca
Annual	7.5 A	7.0 B	9.6 B	10.1 B	7.9 B	13.3 B	19.3 A	13.8 B	10.4 B
Biennal	7.9 A	14.7 A	14.7 A	15.9 A	15.4 A	18.3 A	17.0 B	14.8 A	20.2 A

Brasil

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Fluxo de biomassa e eficiência hídrica da palma forrageira sob diferentes manejos no Semiárido Brasileiro

RESUMO