Maize yield after long-term application of pig slurry

Menezes, June F. S.; Silva, Mariana P. da; Caetano, Jeander O.; Cantão, Veridiana C. G.; Benites, Vinícius de M.

doi:10.1590/1807-1929/agriambi.v21n10p686-690

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ARTICLE • Rev. bras. eng. agríc. ambient. 21 (10) • Oct 2017 • https://doi.org/10.1590/1807-1929/agriambi.v21n10p686-690 copy

Maize yield after long-term application of pig slurry

Produtividade da cultura do milho após a aplicação em longo prazo de dejetos de suínos

Authorship SCIMAGO INSTITUTIONS RANKINGS

ABSTRACT

Organic wastes produced in large quantities in pig farms, such as liquid swine manure (LSM), can become a good alternative source of nutrients for agriculture, thus enabling total or partial replacement of mineral fertilizers in agricultural crops. The aim of this study was to evaluate the use of LSM as a substitute of mineral fertilizer in the maize crop under Cerrado soil conditions. The treatments consisted of using mineral fertilization recommended for the maize crop; without fertilization; and LSM doses (25, 50,100 and 200 m³ ha^-1). Maize grain yield was evaluated in the 2004/2005, 2005/2006, 2006/2007, 2007/2008, 2009/2010, 2011/2012 and 2013/2014 crop seasons. The mineral fertilization in maize can be replaced by pig slurry doses from 100 m³ ha^-1 in a Cerrado soil (dystroferric Red Latosol with clayey texture) with no loss of yield components.

Key words:
organic fertilizer; sustainable waste disposal; swine

N total	P	K	Ca	Mg	S
kg m^-3
0.79	0.16	0.94	0.57	0.25	0.11
OM	DM	Density kg m^-3	pH	Cu	Zn
%		Density kg m^-3	pH	g m^-3
1.05	1.49	1008	7.8	2.34	6.03

Treatments	N	P₂O₅	K₂O
Treatments	kg ha^-1
Control	-	-	-
25 m³ ha^-1 of LSW	19.7	9.3	28.3
50 m³ ha^-1 of LSW	39.5	18.5	56.5
100 m³ ha^-1 of LSW	79.0	37.0	113.0
200 m³ ha^-1 of LSW	158.0	74.0	226.0
Mineral Fertilization1	132.0	80.0	80.0

Season (A)	Yield (kg ha^-1)
2004/2005	6783.9
2005/2006	5756.1
2006/2007	5640.7
2007/2008	8097.3
2009/2010	7804.3
2011/2012	7616.6
2013/2014	7458.5
2015/2016	9987.6
LSD	1063.5
Fertilization (B)
Mineral	7831.70
Control	5756.60
25 m³ ha^-1 LSW	6971.20
50 m³ ha^-1 LSW	7843.00
100 m³ ha^-1 LSW	7707.20
200 m³ ha^-1 LSW	8249.30
LSD	1308.90
CV (%)	17.06
F value
Block	1.83^ns
Season (A)	12.316**
Fertilization (B)	21.935**
A x B	1.702*

Treatments	2004/2005	2005/2006	2006/2007	2007/2008	2009/2010	2011/2012	2013/2014	2015/2016
Mineral	6973a	5539a	5539a	7787a	8490 ab	8506 ab	8879 ab	10939 a
0 m³ ha^-1 LSW	5897a	5460a	5211a	6476a	6086 b	4797 c	4295 c	7830 b
25 m³ ha^-1 LSW	6933a	5800a	5399a	9172a	6230 ab	6239 bc	5954 bc	10042 ab
50 m³ ha^-1 LSW	6654a	5962a	5987a	8607a	7581 ab	7619 bc	9874 a	10458 ab
100 m³ ha^-1 LSW	6973a	6079a	6378a	7430a	9209 a	9246 ab	7159 abc	9182 ab
200 m³ ha^-1 LSW	7272a	5695a	5329a	9112a	9230 a	9292 a	8590 ab	11474 a
LSD	3008

Source of variation	DF	Yield (kg ha^-1)
Block (Season)	16	1948398.2^ns
Season	7	23110945.3**
Dose	4	26547450.4**
Season x dose	28	3019859.9*
Error	64	1600739.5

Doses of liquid swine waste (m³ ha^-1)
Season	0	25	50	100	200	F	r²	Equation
2004/2005	5897	6933	6654	6973	7272	0.244^ns
2005/2006	5460	5800	5962	6079	5695	0.404^ns
2006/2007	5211	5399	5987	6378	5329	1.749^ns
2007/2008	6476	9172	8607	7430	9111	0.056^ns
2009/2010	6086	6230	7581	9209	9230	13.637**	0.77	\documentclass {article} \usepackage{wasysym} \usepackage[substack]{amsmath} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage[mathscr]{eucal} \usepackage{mathrsfs} \usepackage{pmc} \usepackage[Euler]{upgreek} \pagestyle{empty} \oddsidemargin -1.0in \begin{document} \[ y = 6388 + 17.06 x \] \end{document}
2011/2012	4797	6239	7619	9246	9292	7.290**	0.99	\documentclass {article} \usepackage{wasysym} \usepackage[substack]{amsmath} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage[mathscr]{eucal} \usepackage{mathrsfs} \usepackage{pmc} \usepackage[Euler]{upgreek} \pagestyle{empty} \oddsidemargin -1.0in \begin{document} \[ y = 4770 + 67.07 x - 0.22 x^{2} \] \end{document}
2013/2014	4295	5953	9874	7159	8590	7.014**	0.50	\documentclass {article} \usepackage{wasysym} \usepackage[substack]{amsmath} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage[mathscr]{eucal} \usepackage{mathrsfs} \usepackage{pmc} \usepackage[Euler]{upgreek} \pagestyle{empty} \oddsidemargin -1.0in \begin{document} \[ y = 4960 + 60.42 x - 0.22 x^{2} \] \end{document}
2015/2016	7830	10042	10458	9182	11474	7.345**	0.52	\documentclass {article} \usepackage{wasysym} \usepackage[substack]{amsmath} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage[mathscr]{eucal} \usepackage{mathrsfs} \usepackage{pmc} \usepackage[Euler]{upgreek} \pagestyle{empty} \oddsidemargin -1.0in \begin{document} \[ y = 8858 + 12.52 x \] \end{document}

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[1] mari_agro@hotmail.com (Corresponding author)