Viabilidade econômica do uso do sistema de irrigação por gotejamento na cultura da cebola

Boas, Renato Carvalho Vilas; Pereira, Geraldo Magela; Reis, Ricardo Pereira; Lima, José Augusto de Freitas; Consoni, Rodrigo

doi:10.1590/s1413-70542011000400018

Cited by 18 publications

(15 citation statements)

References 6 publications

(4 reference statements)

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“…A cana-de-açúcar é uma cultura que demanda grandes quantidades de água durante todo o seu ciclo. Partindo dessa premissa, Parkes et al (2010), Boas et al (2011), Martins, Reis, Nogueira (2011) afirmam que sistemas de irrigação por gotejamento e microaspersão são mais eficientes no uso da água, sendo indispensáveis por reduzir a mão de obra e o consumo de energia, proporcionar maior produção e melhor qualidade do produto e, consequentemente, maior economia e eficiência da aplicação de água.…”

Section: Introductionunclassified

A CULTURA DA CANA-DE-AÇÚCAR (Saccharum officinarum) E O MANEJO DA IRRIGAÇÃO

et al. 2019

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Tendo em vista a grande competição pelo uso da água, nos próximos anos possivelmente haverá uma mudança no paradigma do manejo da irrigação, visando uma maior eficiência econômica do que a exigência de água pelas plantas. Desta forma, considerando a importância econômica que a cultura de cana-de-açúcar tem no Brasil e no mundo, associada à produção de açúcar, energia e álcool, a presente revisão busca apresentar um estudo sobre as técnicas de otimização no manejo da irrigação para a cana-de-açúcar por ser uma cultura em que o déficit hídrico é um dos fatores que afeta a produtividade. O foco principal proposto foi analisar os resultados científicos sobre a resposta da cana-de-açúcar ao déficit hídrico e a eficiência de uso da água, com as perspectivas socioeconômicas do setor canavieiro. Por meio de análise de dados secundários disponíveis na literatura relacionados ao tema, tanto o rendimento quanto a produção de açúcar e de etanol da cana-de-açúcar irrigada são dependentes da quantidade de água que é aplicada, do manejo da irrigação em combinação com a quantidade correta de adubação, da variedade, da idade do corte, do tipo de solo e do clima. Portanto, o sistema de irrigação para a cultura da cana-de-açúcar mais recomendado é o gotejamento, pois aumenta a produtividade, reduz os tratos culturais e eleva a longevidade dos canaviais.

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Section: Introductionunclassified

A CULTURA DA CANA-DE-AÇÚCAR (Saccharum officinarum) E O MANEJO DA IRRIGAÇÃO

et al. 2019

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“…Thus, to use it economically in irrigation projects, it is necessary to know the water consumption by the crop and its response in productivity, the atmospheric demand and the physical-water characteristics of the soil to determine the economic irrigation level. In addition, it is convenient to make use of localized irrigation systems, which present better efficiency and uniformity of water application, low energy consumption and keep soil moisture always close to field capacity (Boas, Pereira, Reis, Lima Junior, & Consoni, 2011). Thus, the objective of this study was to determine the drip irrigation level with the greatest economic efficiency for the maize crop in the backwoods region of Alagoas, in order to define the appropriate management and the adoption of sustainable practices with the water use efficient for this culture.…”

Section: Introductionmentioning

confidence: 99%

Economic Use of Water in Drip-Irrigated Maize in Semi-Arid Region of Brazil

Silva¹,

Guimarães²,

Nascimento³

et al. 2018

JAS

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The objective of this study was to determine the economic level of drip irrigation for the crop of maize in the region of backwoods of Alagoas in Brazil, aiming at a sustainable production and economically viable. For this, the hybrid AG7088 was submitted to five irrigation levels (40, 80, 120, 160 and 200% of ETc) in an experiment developed at the Federal Institute of Alagoas/Campus Piranhas, with a randomized block design and four replications. Harvesting was carried out 98 days after planting, where grain yield with 12% moisture reached 2.1 and 11.8 Mg ha -1 and water use efficiency of 181.8 and 55.3 mm Mg -1 in treatments with 40 and 160% of ETc, respectively. The maximum a physical productivity estimated by the production function was 11.3 Mg ha

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“…However, in view of the great need of water during the production cycle and the lack of water resources, proper irrigation water management has fundamental importance for achieving greater yield, quality, cost reduction, and rational water use (Padrón et al, 2015a), such as drip irrigation system (Parkes et al, 2010;Boas et al, 2011;Martins et al, 2011). Moreover, Gava et al (2011) investigating drip irrigation system in three sugarcane varieties obtained, on average, 20% increase in plant cane and 28% in ratoon cane.…”

Section: Introductionmentioning

confidence: 99%

Technological parameters and economic analysis of sugarcane cultivated under irrigation depths for ethanol production in Santa Maria-RS, Brazil

Helena¹,

Marcia²,

Adroaldo³

et al. 2016

Afr. J. Agric. Res.

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This study aimed to perform economic analysis and evaluate the effect of technological parameters on plant and ratoon sugarcane under irrigation depths for ethanol production. Treatments were irrigation of 30, 60, 90, and 120% of ET c and a control treatment (no irrigation). The experimental design was a randomized block with six repetitions. We used a drip irrigation system with management based on crop evapotranspiration, according to the methodology proposed by FAO. In rainfed and under irrigation plant cane, the variable cost represented 54.40 and 66.81% and the fixed cost represented 45.60 and 33.19%, respectively. The difference in the cost of production in rainfed and irrigated was 27.23 and 57.20%, for the plant cane and ratoon, respectively. Moreover, we presented the economic viability, which for sugarcane grown in rainfed is 60% of ET c , with differences in the cost of production and net profit of 53.94 and 52.20%, and financial return in the year of implementation and 4 years and 4 months, respectively. The irrigation increased technological parameters for ethanol production. For plant cane, the only variable that showed no statistically significant difference was the fiber, and for ratoon cane the technological parameters did not have statistically significant difference.

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Viabilidade econômica do uso do sistema de irrigação por gotejamento na cultura da cebola

Cited by 18 publications

References 6 publications

A CULTURA DA CANA-DE-AÇÚCAR (Saccharum officinarum) E O MANEJO DA IRRIGAÇÃO

A CULTURA DA CANA-DE-AÇÚCAR (Saccharum officinarum) E O MANEJO DA IRRIGAÇÃO

Economic Use of Water in Drip-Irrigated Maize in Semi-Arid Region of Brazil

Technological parameters and economic analysis of sugarcane cultivated under irrigation depths for ethanol production in Santa Maria-RS, Brazil

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