USE OF CARNAUBA PALM BAGANA TO REDUCE WATER CONSUMPTION IN THE PRODUCTION OF IRRIGATED RADISH

ALMEIDA, ANTONIO VANKLANE RODRIGUES DE; SILVA, ALEXSANDRO OLIVEIRA DA; COSTA, RAIMUNDO NONATO TÁVORA; SANTOS, JENYFFER DA SILVA GOMES; SILVA, GERÔNIMO FERREIRA DA

doi:10.1590/1983-21252020v33n422rc

Acessibilidade / Reportar erro

Brasil

Español English

sumário « anterior atual seguinte »

Sumário

Agricultural Engineering • Rev. Caatinga 33 (4) • Oct-Dec 2020 • https://doi.org/10.1590/1983-21252020v33n422rc copy

USE OF CARNAUBA PALM BAGANA TO REDUCE WATER CONSUMPTION IN THE PRODUCTION OF IRRIGATED RADISH

USO DE BAGANA DE CARNAÚBA PARA REDUÇÃO DO CONSUMO HÍDRICO NA PRODUÇÃO DE RABANETE IRRIGADO

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT

In regions with limited water resources, efficient use of water has become increasingly essential for agricultural production. The objective of the present study was to evaluate the use of the carnauba palm bagana (leaf fibers) as an option of ground cover to reduce the use of water in irrigated radish. The study was conducted from July to October 2018 in two crop cycles in Pentecoste-CE, Brazil. The experiment was carried out in randomized blocks with split plots and four replicates, whose primary treatments consisted of five irrigation depths (50%; 75%; 100%; 125% and 150% of the evapotranspiration crop) and secondary treatments consisted of five different levels of ground cover using carnauba bagana (0%; 25%; 50%; 75% and 100% of 16 t ha^-1), in a 5 x 5 interaction, totaling 100 experimental plots. The following variables were evaluated: fresh mass of shoots and tuber, plant height, number of leaves, tuber diameter and gas exchange. For tuber fresh mass in the first crop cycle, a first order model was obtained with the response surface, with linear increase of the factors irrigation depths (0.064 g plant^-1) and ground cover (0.065 g plant^-1), with the highest value (40.44 g plant^-1) observed for the level of 150% ETc_loc and 100% bagana. Application of 16 t ha^-1 of carnauba bagana can be considered recommended, within the limits studied, for use in the radish crop.

Keywords:
Irrigation management; Ground cover; Raphanus sativus L

Particle-size Composition (g kg^-1)				Textural Class	BD (kg m^-3)	PD (kg m^-3)
Coarse sand	Fine sand	Silt	Clay	Textural Class	BD (kg m^-3)	PD (kg m^-3)
523	233	133	156	Sandy loam	1320	2510

pH in water (1:2.5)	OM g kg^-1	P mg kg^-1	K	Ca	Mg	H+Al	Na	CEC	V (%)
pH in water (1:2.5)	OM g kg^-1	P mg kg^-1	-----------------------cmol_c kg^-1------------------------------------------						V (%)
7.4	39.2	290	9.0	10.3	7.90	0.00	1.14	28.3	100

pH	P	K	Ca	Mg	Na	Fe	Cu	Zn	Mn
H₂O	mg kg^-1	mg dm^-3	----------- cmolc dm^-3--------------			---------------- mg dm^-3-------------
6.9	314.7	1690	14.0	9.20	1.14	26.9	0.4	20.4	100.3

Universidade Federal Rural do Semi-Árido Avenida Francisco Mota, número 572, Bairro Presidente Costa e Silva, Cep: 5962-5900, Telefone: 55 (84) 3317-8297 - Mossoró - RN - Brazil
E-mail: caatinga@ufersa.edu.br

Acompanhe os números deste periódico no seu leitor de RSS

[1] *Corresponding author

---------------------------- First production cycle -----------------------------
SV	DF	NL	PH	TL	TLD	TTD	TC
Block	3	1.27^* * significant at 5% probability level by F test;	22.97^ns ns not significant.	10.34^* * significant at 5% probability level by F test;	3.67^ significant at 1% significance level by F test;	0.80^* * significant at 5% probability level by F test;	0.03^ns ns not significant.
Irr. Depth (L)	4	0.75^ns ns not significant.	10.49^ns ns not significant.	5.38^ns ns not significant.	0.76^ns ns not significant.	0.38^ns ns not significant.	0.29^ns ns not significant.
Residual (a)	12	0.35	9.80	2.39	0.33	0.16	0.60
Bagana (B)	4	1.19^ns ns not significant.	8.44^ns ns not significant.	4.79^* * significant at 5% probability level by F test;	1.02^ significant at 1% significance level by F test;	0.45^ns ns not significant.	1.04^ns ns not significant.
L x B	16	1.61^* * significant at 5% probability level by F test;	3.02^ns ns not significant.	2.76^* * significant at 5% probability level by F test;	0.42^ns ns not significant.	0.18^ns ns not significant.	0.74^ns ns not significant.
Residual (b)	60	0.72	4.02	1.41	0.26	0.30	0.63
CV 1(%)		10.38	18.93	29.55	13.66	10.22	49.47
CV 2(%)		14.81	12.12	22.66	12.13	13.88	50.62
---------------------------- Second production cycle -----------------------------
SV	DF	NL	PH	TL	TLD	TTD	TC
Block	3	2.41^* * significant at 5% probability level by F test;	11.52^ns ns not significant.	1.80^ns ns not significant.	0.28^ns ns not significant.	2.04^ significant at 1% significance level by F test;	0.24^ns ns not significant.
Irr. Depth (L)	4	1.04^ns ns not significant.	7.84^ns ns not significant.	0.15^ns ns not significant.	0.31^ns ns not significant.	0.42^ns ns not significant.	0.46^ns ns not significant.
Residual (a)	12	0.69	7.05	1.00	0.63	0.46	0.57
Bagana (B)	4	0.36^ns ns not significant.	5.09^ns ns not significant.	0.11^ns ns not significant.	0.13^ns ns not significant.	0.05^ns ns not significant.	0.26^ns ns not significant.
L x B	16	0.48^ns ns not significant.	2.38^ns ns not significant.	0.81^ns ns not significant.	0.33^ns ns not significant.	0.17^ns ns not significant.	0.77^* * significant at 5% probability level by F test;
Residual (b)	60	0.59	3.15	0.73	0.34	0.29	0.77
CV 1(%)		13.22	18.98	16.52	19.13	16.83	61.06
CV 2(%)		12.21	12.69	14.10	13.97	13.33	50.36

------------------------------- First production cycle -----------------------------
SV	DF	SFM	TFM	SDM	TDM
Block	3	117.54^ significant at 1% significance level by F test;	469.01^ significant at 1% significance level by F test;	1.62^* * significant at 5% probability level by F test;	3.72^ significant at 1% significance level by F test;
Irr. Depth (L)	4	148.35^ significant at 1% significance level by F test;	255.64^* * significant at 5% probability level by F test;	0.91^* * significant at 5% probability level by F test;	0.43^ns ns not significant.
Residual (a)	12	38.63	113.88	0.29	0.33
Bagana(B)	4	79.49^* * significant at 5% probability level by F test;	172.11^ns ns not significant.	0.34^ns ns not significant.	0.65^ns ns not significant.
L x B	16	77.92^ significant at 1% significance level by F test;	194.24^ significant at 1% significance level by F test;	0.46^ns ns not significant.	0.41^ns ns not significant.
Residual (b)	60	20.37	78.26	0.34	0.39
CV 1 (%)		39.04	36.52	23.01	20.78
CV 2 (%)		28.35	30.27	25.21	22.59
------------------------------- Second production cycle -----------------------------
SV	DF	SFM	TFM	SDM	TDM
Block	3	193.33^ significant at 1% significance level by F test;	934.59^ significant at 1% significance level by F test;	1.369^ns ns not significant.	0.504^ns ns not significant.
Irr. Depth (L)	4	21.38^ns ns not significant.	114.70^ns ns not significant.	0.527^ns ns not significant.	0.213^ns ns not significant.
Residual (a)	12	58.21	192.83	0.86	0.72
Bagana (B)	4	27.45^ns ns not significant.	195.48^ns ns not significant.	0.877^* * significant at 5% probability level by F test;	0.192^ns ns not significant.
L x B	16	19.59^ns ns not significant.	58.15^ns ns not significant.	0.279^ns ns not significant.	0.288^ns ns not significant.
Residual (b)	60	38.49	121.91	0.25	0.72
CV 1 (%)		43.53	33.99	18.06	13.99
CV 2 (%)		35.39	27.03	9.84	14.03

---------------------------- First production cycle ---------------------------
SV	DF	E	gs	A
Block	3	39.69^ significant at 1% significance level by F test;	1.65^ significant at 1% significance level by F test;	49.01^ significant at 1% significance level by F test;
Irr. Depth (L)	4	0.96^ns ns not significant.	0.18^ns ns not significant.	8.75^ns ns not significant.
Residual (a)	12	1.02	0.17	5.11
Bagana (B)	4	0.70^ns ns not significant.	0.08^ns ns not significant.	9.18^ns ns not significant.
L x B	16	0.20^ns ns not significant.	0.10^ns ns not significant.	6.01^ns ns not significant.
Residual (b)	60	0.37	0.10	8.07
CV 1 (%)		13.94	48.32	9.70
CV 2 (%)		8.45	37.06	12.19
---------------------------- Second production cycle --------------------------
SV	DF	E	gs	A
Block	3	66.61^ significant at 1% significance level by F test;	0.89^ significant at 1% significance level by F test;	58.09^ significant at 1% significance level by F test;
Irr. Depth (L)	4	0.82^ns ns not significant.	0.31^ns ns not significant.	3.80^ns ns not significant.
Residual (a)	12	1.28	0.09	4.81
Bagana (B)	4	0.02^ns ns not significant.	0.04^ns ns not significant.	2.26^ns ns not significant.
L x B	16	0.32^ns ns not significant.	0.11^ns ns not significant.	2.35^ns ns not significant.
Residual (b)	60	0.29	0.17	2.80
CV 1 (%)		16.10	43.21	11.27
CV 2 (%)		7.75	33.27	8.60