ASSESSMENT OF PARICÁ <i>(Schizolobium parahyba</i> var.<i>amazonicum</i> (HUBER EX DUCKE) BARNEBY) PLANTATIONS AT DIFFERENT AGES AND CULTIVATION SYSTEMS IN AURORA DO PARÁ (PARÁ STATE-BRAZIL)

Cordeiro, Iracema Maria Castro Coimbra; Barros, Paulo Luiz Contente de; Lameira, Osmar Alves; Gazel Filho, Aderaldo Batista

doi:10.5902/1980509819618

ABSTRACT

This work aimed to study the behavior of the species Schizolobium parahyba var. amazonicum (Huber ex Ducke) Barneby (In the Portuguese language 'Paricá') at different ages and cultivation systems in Aurora do Pará (Pará state, Brazil). The experiment was carried out in the experimental territory of 'Tramontina Belém S.A. company' (2°10'00"s; 47°32'00"w), using a thoroughly random statistical outline with subdivided plots. There were selected six plantation forests of Paricá: 1- agroforestry system of Paricá and Curauá (Ananas comosus var.erectifolius) (SAFpc); 2- monoespecific plantation of Paricá (MONp); 3- agroforestry system with Paricá, freijo (Cordia goeldiana) and curauá (SAFpfc); 4- consortium of Paricá and Freijó (CONpf); 5- agroforestry system with Paricá, Freijo, Mogno and Curaua (SAFpfmc); 6- Consortium of Paricá, Magno and Freijo (CONpmf). The plot size was 18m x 24m with four repetitions per treatment, amounting for 28 plots and 10.368 m² of experimental area. The numbers used as reference to evaluate the growth of Paricá were height (H) and breast height diameter (DAP). Based on those values the average increments per year were calculated in DAP (IMAdap), H (IMAalt) and volume (V); The data was submitted a Variance Analysis and the average compared through Student Newman Keuls test (SNK), at 95% probability level. The results showed that Paricá and Curaua, if associated, presented statistically higher numbers in height and diameter at breast height, increment and volume, if compared to same age treatments in the absence of the agricultural species.

Keywords:
growth; volume; mono-specific plantation, agroforestry system

[TFN1] Em que: SAFpc = Sistema agroflorestal de paricá e curauá; MOCp = Monocultivo de paricá; SAFpfc = Sistema agroflorestal de paricá; CONpf = Consórcio paricá e freijó; SAFpmfc = Sistema agroflorestal paricá, mogno, freijó e curauá; CONpmf = Consórcio paricá, mogno e freijó.

Sistemas	pH água	P	Na	K	Ca	Ca +Mg	Al	H + Al	m
Sistemas	pH água	mg/dm³			cmol_c/dm³				(%)
SAF Pc	4,93	1,53	11,30	0,052	1,10	1,60	0,43	2,58	20,65
MOCp	5,05	1,50	12,00	0,090	1,80	2,50	0,35	1,97	11,91
SAFpfc	4,70	1,75	10,50	0,063	1,23	1,83	0,38	2,36	16,72
CONpf	5,02	1,75	9,50	0,038	1,28	1,75	0,43	2,48	19,38
SAFpmfc	4,92	2,00	7,50	0,035	1,28	1,80	0,38	2,18	17,16
CONpmf	4,97	2,00	10,20	0,042	1,05	1,60	0,37	2,15	18,39

Grupo (Exp.)	Idade (anos)		Sistema de cultivo (tratamentos)	Notação	Espécies
	Plantio	Coleta de dados			Florestal	Agrícola
A	0	3	Agroflorestal Monocultivo	SAFpc	paricá	curauá
				MONp	paricá	-
B	1	4	Agroflorestal Consórcio	SAFpfc CONpf	paricá, freijó paricá, freijó	curauá
						-
C	2	5	Agroflorestal Consórcio	SAFpmfc CONpmf	paricá, mogno, freijó paricá, mogno, freijó	curauá
-

Idade (anos)		Grupo (Exp)	Sistemas de cultivos (tratamentos)	Notação	Médias
Plantio	Coleta de Dados				H (m)	DAP (cm)
0	3	A	Monocultivo	MONp	6,64 a	7,76 a
0	3	A	Agroflorestal	SAFpc	7,12 b	9,86 b
1	4	B	Consórcio	CONpf	7,06 a	9,99 a
1	4	B	Agroflorestal	SAFpfc	10,34 b	12,43 b
2	5	C	Consórcio	CONpmf	9,26 a	12,85 a
Agroflorestal	SAFpmfc	9,76 a	13,9 b

Idade (anos)		Grupo (Exp.)	Sistemas de cultivos (tratamentos)	Notação	Médias
Plantio	Coleta de dados				IMAH (m/ano)	IMADAP (cm/ano)
0	3	A	Monocultivo	MONp	3,21a	4,89 a
0	3	A	Agroflorestal	SAFpc	2,65 b a	3,98 b
1	4	B	Consórcio	CONpf	2,75 a	4,25 a
1	4	B	Agroflorestal	SAFpfc	2,56 a	3,70 b
2	5	C	Consórcio	CONpmf	2,57 a	3,38 a
Agroflorestal	SAFpmfc	1,77 a	2,50 b

Idade (anos)	Experimentos	Sistemas de cultivos (tratamentos)	Volume (m³/h^-1) (X±s)	CV (%)
3	A	SAFpc MONp	152,84±23,80 87,20±17,51	15,57 20,08
4	B	SAFpfc CONpf	161,57±11,01 97,50±11,77	6,81 12,07
5	C	SAFpmfc CONpmf	144,73±20,86 100,57±10,07	14,41 10,01

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ASSESSMENT OF PARICÁ (Schizolobium parahyba var.amazonicum (HUBER EX DUCKE) BARNEBY) PLANTATIONS AT DIFFERENT AGES AND CULTIVATION SYSTEMS IN AURORA DO PARÁ (PARÁ STATE-BRAZIL)

ABSTRACT