Rubens Duarte Coelho

• Abstract

  Central pivot irrigation systems currently occupy about 20% of the irrigated area in Brazil, currently being sold around 1,800 new equipments per year (120,000 ha/year) mainly in the Southeast and Midwest regions of the country. These sprinkler irrigation equipments have water efficiency between 80 to 90%, when well-sized, being subjected to the effects of drift by wind and wetting the pl…

  MOBILE DRIP IRRIGATION (CENTER PIVOT): PERFORMANCE OF SPECIAL DRIP TUBING FOR DRAG ON SOIL., AP.R

• Abstract

  Sugar cane crop stands out as one of the main crops explored in Brazil. In new areas of expansion of the sugarcane industry (SP west, MS, MT, GO, MG, BA, AM, MA and PI) it is observed periods of more intensive drought in the soil throughout the year, being of fundamental importance to consider the water-plant relations to obtain economic productivity. So the project to be developed in Bio…

  Water productivity into biomass and energy for Brazilian sugar cane varieties as a function of soil water availability: experimentation and simulation, AP.BIOEN.PITE
• Chemical damages of chlorine and acids applications on compensating drippers., AR.EXT

(Only some records are available in English at this moment)

• Abstract

  Climate change will strongly affect the Agriculture and consequently the food, fiber and energy production. However, the magnitude of these impacts and how they will occur are still uncertain. These uncertainties, associated with the increased demand for food, including coffee consumption, require further studies on the quantification of the impacts of climate change on agricultural produ…

  Evaluation and adaptation of coffee productivity models to determine climate risk and management strategies to mitigate the impacts of climate change in Brazil, BP.DR