Sewage sludge composted in the coloring and development of Bermuda grass

Rezende, Brian Turati; Santos, Patrick Luan Ferreira dos; Bezerra, Jéssica Cristina Meira; Pagliarini, Maximiliano Kawahata; Castilho, Regina Maria Monteiro de

doi:10.1590/2447-536X.v26i3.2204

Acessibilidade / Reportar erro

Brasil

Español English

sumário « anterior atual seguinte »

Sumário

Scientific Article • Ornam. Hortic. 26 (3) • Jul-Sep 2020 • https://doi.org/10.1590/2447-536X.v26i3.2204 copy

Sewage sludge composted in the coloring and development of Bermuda grass

Composto de lodo de esgoto na coloração e desenvolvimento da grama bermuda

Authorship SCIMAGO INSTITUTIONS RANKINGS

Abstract

‘Barazur’ or Discovery^TM (Cynodon dactylon) is a new variety of Bermuda grass that has slow vertical growth and a bluish-green colour, and the use of sewage sludge in implantation of this species may be an alternative for its sustainable cultivation, without need for chemical fertilizers. Thus, the objective was to evaluate the influence of sewage sludge compound on colour and development of Bermuda grass Discovery^TM. The experiment was conducted in the field with sod implanted in black plastic containers (volume 8.46 L) filled with soil + sand (1:1) and added different dosages of sludge compost, being: 0 g L ^-1 (control), 30 g L^-1, 60 g L^-1 and 120 g L^-1. Digital image analysis, fresh and dry leaf mass, Nitrogen leaf and Nitrogen leaf accumulation were evaluated. It was observed that the sewage sludge influenced on turfgrass colouring and development, where 30 g L^-1 showed excellent results for colouring with less mass production and N accumulation than the highest dose, showing that this treatment is sufficient for lawn development, without the need of using higher concentrations of compound. It is concluded that the use of composted sewage sludge at a dose of 30 g L^-1 is recommended for use in implantation of Bermuda grass Discovery^TM.

Keywords:
Cynodon dactylon; ornamental lawn; organic fertilization; aesthetic quality

N	P₂O₅	K₂O	Ca	Mg	S	Humidity	O.M.	O.C.
----------------------- g kg^-1 (in natura) --------------------						%	g kg^-1	dry
28	35	1.0	15	4.0	4.0	21	370	260
Na	B	Cu	Fe	Mn	Zn	C/N	pH
---------------------- mg kg^-1 (in natura) ----------------------							in natura
1,132	145	185	33,793	259	701	7/1	5.8

Treatments	R	G	B	Hue	Saturation	Brightness	DGCI
Treatments	------------- Admin. ---------			( º )	--------- % ----------		Admin
0 g L^-1	105 a	169 a	136 a	149 b	38.16 b	66.28 a	0.82 b
30 g L^-1	52 b	128 b	97 b	155 a	59.73 a	50.20 b	0.83 ab
60 g L^-1	51 b	106 c	80 b	153 ab	56.17 a	41.57 c	0.86 a
120 g L^-1	47 b	121 bc	94 b	157 a	58.75 a	47.35 bc	0.85 ab
CVC	20	21	23	5	10.58	8.04	0.04
CV (%)	20.23	10.16	14.94	2.11	12.91	10.16	2.82
F	17.94**	16.44**	10.25**	3.64*	8.71**	16.44**	2.62**

Treatments	Fresh mass g m^-2	Dry mass g m^-2	Nitrogen g Kg^-1	Accumulated nitrogen g N m^-2
0 g L^-1	505.5 c	297.9 b	15.5 a	4.6 b
30 g L^-1	716.6 bc	385.9 ab	15.2 a	5.8 ab
60 g L^-1	940.5 ab	498.9 ab	14.7 a	7.4 ab
120 g L^-1	1127.2 a	569.3 a	14.2 a	8.0 a
CVC	337.2	210.8	3.4	2.9
CV (%)	15.69	18.41	8.67	16.95
F	13.13**	6.65*	0.61^ns	6.10*

	R	G	B	Hue	Sat.	Brig.	DGCI	FM	DM	N
G	0.96**
B	0.97**	0.98**
Hue	-0.27^ns	-0.25^ns	-0.12^ns
Sat.	-0.97**	-0.89**	-0.93**	0.21^ns
Brig.	0.96**	1.00**	0.98**	-0.25^ns	-0.89**
DGCI	0.02^ns	-0.11^ns	0.04^ns	0.72**	-0.20^ns	-0.11^ns
FM	-0.69**	-0.72**	-0.65*	0.53^ns	0.63*	-0.72**	0.36^ns
DM	-0.64*	-0.66*	-0.61*	0.46^ns	0.58*	-0.66*	0.31^ns	0.97**
N	0.23^ns	0.22^ns	0.22^ns	-0.09^ns	-0.23^ns	0.22^ns	-0.01^ns	-0.56*	-0.58*
Acc. N	-0.65*	-0.68**	-0.63*	0.47^ns	0.59*	-0.68**	0.33^ns	0.94**	0.96**	-0.38^ns

Sociedade Brasileira de Floricultura e Plantas Ornamentais Av. Av. Peter Henry Rolfs, s/n, 36570-000 - Viçosa, Minas Gerais - Brasil, (32) 3379-4983, Tel: (32) 3379-4983 - Viçosa - MG - Brazil
E-mail: editor.ornamentalhorticulture@gmail.com

Acompanhe os números deste periódico no seu leitor de RSS

[1] * Corresponding author: patricklfsantos@gmail.com