Economic analysis and energetic viability of the common bean crop under irrigation/ Analise economica e viabilidade energetica da cultura do feijoeiro comum sob irrigacao

• Published in: Revista brasileira de engenharia agrícola e ambiental 2013-08, Vol.17 (8), p.835
• Main Authors: Gomes, Eder P, Jordan, Rodrigo A, Motomiya, Anamari V. de A, Padua, Juliana B, Biscaro, Guilherme A, Geisenhoff, Luciano O
• Format: Article
• Language: Spanish
• ISSN: 1415-4366

This study was conducted to evaluate the economic and energetic viability of the third season of common bean under irrigation depths in the northwestern region of Parana. The experiment was established with six irrigation levels and four replications in a randomized block design. The bean crop was not economically viable without irrigation. Operating profit increased with increasing irrigation depths, reaching a total operating profit of R$ 1,427.24 [ha.sup.-1] by 333 mm irrigation depth. The equilibrium price without irrigation was R$ 134.06 and R$ 152.65 [bag.sup.-1], short and long term, respectively. The irrigation favored the energy balance extracted (energy/used energy), reaching 1.63 in the application of greater depth (333 mm). Key words: operating cost of production, irrigation management, third season, energy balance Este trabalho foi realizado com o objetivo de avaliar a viabilidade economica e energetica da cultura do feijoeiro comum de terceira safra com laminas de irrigacao na regiao Noroeste do Parana. O experimento foi implantado com seis laminas de irrigacao e quatro repeticoes, em delineamento de blocos ao acaso. A cultura do feijoeiro nao foi viavel economicamente sem irrigacao. Os lucros cresceram com o aumento das laminas de irrigacao atingindo um lucro operacional total de R$1.427,24 [ha.sup.-1] na lamina de 333 mm. O preco de equilibrio sem irrigacao foi de R$ 1 34,06 e R$ 152,65 a saca, em curto e longo prazos, respectivamente. A irrigacao favoreceu o balanco energetico (energia extraida/energia utilizada) de maneira linear atingindo 1,63 na aplicacao da maior lamina (333 mm). Palavras-chave: custo operacional de producao, manejo de irrigacao, terceira safra, balanco de energia