Consórcio de mandioca com feijão-caupi cultivados na savana de Roraima

Albuquerque, José de Anchieta Alves de; Oliva, Larissa Souza de Campos; Alves, José Maria Arcanjo; Uchôa, Sandra Catia Pereira; Melo, Djair Alves de

doi:10.5935/1806-6690.20150018

José de Anchieta Alves de Albuquerque

Departamento de Fitotecnia of CCA/UFRR, BR 174, km 12, s/n, Campus do Cauamé, Boa Vista-RR, Brazil, 69.310-270, anchietaufrr@gmail.com, arcanjoalves@oi.com.br

Larissa Souza de Campos Oliva

Agronomy Course, BR 174, km 12, s/n, Campus do Cauamé, Boa Vista-RR, Brazil, 69.310-270, larisseoliva@yahoo.com.br

José Maria Arcanjo Alves

Departamento de Fitotecnia of CCA/UFRR, BR 174, km 12, s/n, Campus do Cauamé, Boa Vista-RR, Brazil, 69.310-270, anchietaufrr@gmail.com, arcanjoalves@oi.com.br

Sandra Catia Pereira Uchôa ^** Autor para correspondência

Departamento de Solos e Engenharia Agrícola of CCA/UFRR, BR 174, km 12, s/n, Campus do Cauamé, Boa Vista-RR, Brazil, 69.310-270. sandra.uchoa@ufrr.br

Djair Alves de Melo

Instituto Federal de Educação, Ciência e Tecnologia de Roraima, Campus Novo Paraíso, Caracaraí-RR, Brazil, 69.300-000, djairmelo@ifrr.edu.br

* Autor para correspondência

Figuras (1)
Tabelas (6)

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Figure 1
Rainfall (mm), average temperature (°C) and relative humidity of the air (%) during the period of performance of the experiment. Data obtained from the meteorological station of the Department of Soils and Agricultural Engineering of the CCA-UFRR. Boa Vista, Roraima state 2012

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Table 1
Chemical and physical attributes of two depths 0-20 and 20-40 cm of the dystrophic cohesive Yellow Latosol soil of the experimental area^1/

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Table 2
Description of the seven treatments with their respective spacings

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Table 3
Summary of analysis of variance of the data regarding the yield of roots (YIELD - kg ha^-1), fresh weight of shoot (FW - kg ha^-1), harvest index (HI - %), number of roots per plant (NRP), root length (RL - cm), roots diameter (RD - cm), roots dry matter (RDM - %) and starch content (SC - %) of the cassava root of the cultivar “Aciolina” harvested at twelve months after planting. Boa Vista, Roraima state, 2012

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Table 4
Summaries of the analyses of variance of data on grain yield (YIELD - kg ha^-1), weight of 1,000 seeds (WS - g), number of pod per plant (NPP), number of seeds per pod (NSP) and length of pod (LP) of cowpea, cultivar UFRR grao verde. Boa Vista, Roraima state, 2012

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Table 5
Average values of fresh weight of shoot (FWS), number of roots per plant (NRP), root length (RL), root diameter (RD), root dry matter (RDM), roots starch content (RSC), roots yield (YIELD) and harvest index (HI), of cassava of the cultivar “Aciolina” in monoculture and intercropped with cowpea, harvested at 12 months after planting. Boa Vista, Roraima state, 2012

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Table 6
Average values of the weight of 1,000seeds (WTS), number of pods per plant (NPP), pod length (PL), number of seeds per pod (NSP), yield of grains (YIELD) of cowpea intercropped with cassava and in monoculture and equivalence index of area (EIA) regarding the intercropping. Boa Vista, Roraima state, 2012

Layer	pH H₂O	P^2/ 2/ Available P and K - Mehlich Extractor – 1;	K^2/ 2/ Available P and K - Mehlich Extractor – 1;	Ca^3/ 3/ Extractor KCl 1 mol L- ;	Mg^3/ 3/ Extractor KCl 1 mol L- ;	Al^3/ 3/ Extractor KCl 1 mol L- ;	H+Al^4/ 4/ Extractor Ca(OAC)2 0.5 mol L-1, pH 7.0;	ECEC^5/ 5/ ECEC - Total cation exchange capacity - obtained by summation of the exchangeable cations and potencial acidity (K, Ca, Mg, H+Al), Base saturation (%);	BS^6/ 6/ Organic Matter - derived by multiplying Organic carbon (determined by Walkey-Black method) by factor 1.72	O.M7/
Layer	pH H₂O	mg dm^-3	--------------------------cmol_cdm^-3 ---------------------------------						(%)	g kg^-1
0-20	5.16	0.6	62	0.84	0.10	0.20	1	2.16	53.9	6.1
20-40	5.06	0.5	70	0.24	0.03	0.51	1.2	1.65	27.3	4.0
Layer	Thick sand	Fine sand	Silt	Clay			Textural Class
------------------------------------------------------------------- g kg^-1-------------------------------------------------------------------
0-20	400	300	70	220	Franco-Clay-Sandy
20-40	360	290	90	260	Franco-Clay-Sandy

Treatment	Description	Spacing (m)
T1	Single row of cassava in monoculture	(1.0 x 0.5)
T2	Single row of cassava + 1 row of cowpea between rows of cassava	(1.0 x 0.5)
T3	Double row of cassava in monoculture	(2.0 x 0.5 x 0.5)
T4	Double row of cassava + 1 row of cowpea between double rows of cassava	(2.0 x 0.5 x 0.5)
T5	Double row of cassava + 2 rows of cowpea between double rows of cassava	(2.0 x 0.5 x 0.5)
T5		(0.75 m among rows)
T6	Double row of cassava + 3 rows of cowpea between double rows of cassava	(2.0 x 0.5 x 0.5)
T6		(0,50 m among rows)
T7	Single row of cowpea in monoculture	(0.50 m among rows)

FV	GL	Average squares
FV	GL	YIELD	FW	HI	NRP	RL	RD	RDM	SC
Blocks	3	3,681,512	1,774,896	22.68	5.98	0.82	0.61	2.96	3.01
Treatments	5	24,155,900^* ns, *, Not significant, Significant at 0.1; 1 and 5% probability, respectively, by test F	1,401,205^ns ns, *, Not significant, Significant at 0.1; 1 and 5% probability, respectively, by test F	60.63^ns ns, *, Not significant, Significant at 0.1; 1 and 5% probability, respectively, by test F	1.69^ns ns, *, Not significant, Significant at 0.1; 1 and 5% probability, respectively, by test F	10.94^ns ns, *, Not significant, Significant at 0.1; 1 and 5% probability, respectively, by test F	1.41^ ns, , *Not significant, Significant at 0.1; 1 and 5% probability, respectively, by test F	0.62^ns ns, *, Not significant, Significant at 0.1; 1 and 5% probability, respectively, by test F	0.62^ns ns, *, Not significant, Significant at 0.1; 1 and 5% probability, respectively, by test F
Residue	15	2,726,216	3,248,057	20.45	0.98	9.45	0.24	0.47	0.48
Average		15.068	14.738	50.30	3.83	22.71	5.09	33.10	28.45
CV (%)		10.96	12.23	8.91	25.85	13.54	9.70	2.08	2.42

FV	GL	Average squares
FV	GL	YIELD	WS	NPP	NSP	LP
Blocks	3	468.18	22.85	5.00	0.43	5.93
Treatments	5	97,052.93^* ns, , , Not significant, Significant at 0.1; 1 and 5% probability, respectively, by test F	2.68^ns ns, *, , * Not significant, Significant at 0.1; 1 and 5% probability, respectively, by test F	4.73 ^* ns, , , Not significant, Significant at 0.1; 1 and 5% probability, respectively, by test F	2.33^ ns, , , Not significant, Significant at 0.1; 1 and 5% probability, respectively, by test F	0.49^ns ns, *, , * Not significant, Significant at 0.1; 1 and 5% probability, respectively, by test F
Residue	12	1,415.73	23.14	0.57	0.57	1.65
Average		732.95	155.05	13.68	13.14	14.71
CV (%)		5.13	3.10	5.50	5.76	8.73

Treatment	FWS (kg ha^-1)	NRP	RL (cm)	RD (cm)	RDM (%)	RSC (%)	YIELD (kg ha^-1)	HI (%)
T1	15,746	4.95	20.50	3.90 b	33.77	29.12	18,265 a	51.69
T2	14,346	3.10	24.75	5.37 a	33.12	28.47	13,086 c	49.49
T3	14,152	3.74	24.25	5.17 a	33.24	28.60	14,225 bc	50.41
T4	15,125	4.12	23.25	5.30 a	32.63	27.98	11,900 c	49.60
T5	14,572	3.45	22.00	5.47 a	32.97	28.32	17,322 ab	51.10
T6	14,490	3.71	21.50	5.35 a	32.85	28.20	15,584 abc	50.80
T7	---	---	---	---	---	---	---	---
Average	14,738	3.83	22.71	---	33.10	28.45	---	50.30

Treatment	WTS (g)	NPP	PL (cm)	NSP	YIELD (kg ha^-1)	EIA
T1	---	---	---	---	---	---
T2	155	12.55 c	14.85 b	12.62	769 b	1.56
T3	---	---	---	---	---	---
T4	154	14.67 ab	15.62 a	13.50	477 c	1.18
T5	156	13.17 bc	14.25 c	13.02	751 b	1.77
T6	155	13.00 bc	13.67 d	13.15	763 b	1.69
T7	154	15.00 a	15.15 ab	13.42	903 a	---
Average	155	---	---	13.14	---	1.55

[1] * Autor para correspondência

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Consórcio de mandioca com feijão-caupi cultivados na savana de Roraima