NDLI: Influência Da Uniformidade De Irrigação Na Produção E Na Rentabilidade De Silagem De Milho Irrigado

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Influência Da Uniformidade De Irrigação Na Produção E Na Rentabilidade De Silagem De Milho Irrigado

Content Provider	Semantic Scholar
Author	Oliveira, Flávio Gonçalves Lopes, Roberth Gabriel Nobre Moreira, Fábio Gregory De Andrade Figueiredo, Flavio De
Copyright Year	2015
Abstract	INFLUENCIA DA UNIFORMIDADE DE IRRIGACAO NA PRODUCAO E NA RENTABILIDADE DE SILAGEM DE MILHO IRRIGADO FLAVIO GONCALVES OLIVEIRA¹; ROBERTH GABRIEL NOBRE LOPES²; FABIO GREGORY DE ANDRADE MOREIRA³ E FLAVIO PIMENTA DE FIGUEIREDO 4 ¹Doutor, Professor da UFMG – Montes Claros – MG – Brasil. Email: flaviogoliveira@ibest.com.br . ²Engenheiro Agricola e Ambiental. Email: roberthufmg@gmail.com . ³Academico de Engenharia Agricola e Ambiental UFMG – Montes Claros - MG – Brasil. Email: fabiogregory@ufmg.br . 4 Doutor, Professor da UFMG – Montes Claros – MG – Brasil. Email: figueiredofp@yahoo.com.br . 1 RESUMO Avaliou-se a uniformidade de um sistema de irrigacao por aspersao convencional, com um e com dois bocais, de determinado fabricante, na cultura do milho. Foram instalados 36 coletores espacados entre si a uma distância de 3 metros e os coletores situados nas proximidades dos emissores estavam 1,5 metros distantes destes. Foram realizados dois testes de uniformidade, sendo o primeiro utilizando os aspersores com um bocal de 5,16mm, posteriormente, no segundo teste, foram utilizados outros aspersores de mesmo modelo porem com dois bocais (5,16mm x 2,38mm), ambos com mesma vazao e pressao de funcionamento. Determinou-se ao final da cultura a produtividade da silagem produzida e consequentemente a rentabilidade da mesma produzida sob as duas condicoes de irrigacao. A cultura do milho irrigado destinou-se a producao de silagem, momento o qual determinou-se as produtividades bem como a receita bruta em cada sistema, a partir do qual calculou-se a diferenca de receita e de rentabilidade nas duas situacoes estudadas. Os resultados encontrados mostram que o sistema com bocais duplos apresentou um Coeficiente de Uniformidade de Distribuicao de 82%, sendo aproximadamente 32% mais uniforme que o sistema com bocal unico. A produtividade do sistema com um bocal foi de 33,2T/ha, enquanto a produtividade com dois bocais foi 26,5% maior, atingindo 42T/ha. O sistema de irrigacao de maior uniformidade proporcionou renda liquida de R$2.200,00/ha a mais, ou seja, 26,5% mais rentavel. Palavras-chave: uniformidade, milho irrigado, silagem. OLIVEIRA, F. G.; LOPES, R. G. N; MOREIRA, F. G. A; FIGUEIREDO, F. P. INFLUENCE OF IRRIGATION UNIFORMITY IN THE PRODUCTION AND PROFITABILITY OF IRRIGATED CORN SILAGE 2 ABSTRACT We evaluated the uniformity of an irrigation system sprinkle, with one and with two nozzles, of a particular manufacturer, in maize. Were installed 36 collectors spaced at a distance of 3 meters and collectors located near the issuers were 1.5 meters distant these. Two uniformity tests were performed, the first using the spray with a nozzle 5,16mm later in the second test, we used other sprinkler same model but with two nozzles (5,16mm x 2.38 mm). Was determined at the end of the culture the productivity of silage production and consequently the profitability of the same under both conditions irrigation. The corn cultived was destined to silage production, which the yield and the net income was determined in each system, from which we calculated the difference in revenue and profitability in both conditions studied. The results show that the system with dual nozzles presented a uniformity coefficient of Distribution of 82%, approximately 32% more uniform that system with single nozzle. The system productivity with a nozzle was 33,2T.ha -1 , while productivity with two nozzles was 26.5% higher, reaching 42T.ha -1 . The more uniform irrigation system provided net income of R$2,200.00/ha higher, or 26.5% more profitable. Keywords: uniformity, irrigated corn silage
Starting Page	103
Ending Page	108
Page Count	6
File Format	PDF HTM / HTML
DOI	10.15809/irriga.2015v1n2p103
Alternate Webpage(s)	http://revistas.fca.unesp.br/index.php/irriga/article/download/2031/1291
Alternate Webpage(s)	https://doi.org/10.15809/irriga.2015v1n2p103
Volume Number	1
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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