Special attention has been paid to build a simple solar air heater from cheap plastic wrapping film with air bubbles, for use in drying operations on a farm (grain, fruit, fish, etc.). The model used was a single-sheet cylindrical collector and, after it had gained some heat, another layer of...

The influence of the Cerro Prieto Geothermal Field (CPGF) on groundwater quality of the close-by agricultural area was evaluated by means of chemical and isotopic determinations. According to irrigation standards, concentrations of As, Cd, Pb, Crtot, Cr(VI), Cu, Cd, Hg, B in agricultural wells...

This paper discusses three related examples of mission-oriented agricultural institutional innovations associated with substantial crop yield increases in the 20th century. It begins with the implementation of the United States Land-Grant System and then discusses in turn the planning and...

This article offers the first national examination of the determinants of adoption of wind and solar energy generation on U.S. farming operations. The inclusion of state policies and characteristics in a multilevel modeling approach distinguishes this study from past research utilizing logit...

The Central Rift Valley (CRV) of Ethiopia is a closed basin where claims on land and water have strongly increased over the past decade resulting in over-exploitation of the resources: a clear symptom is the declining trend in the water level of the terminal Lake Abyata. In this paper, we...

Because low-grade weirs are designed to impede flow of water there is concern from producers that they will lead to decreased drainage and increased flooding in adjacent fields. The purpose of this study was to determine if weirs increased the risk of flooding and backflow. Analyses were...

New best management practices (BMPs) are needed to provide enhanced water quality improvements to downstream aquatic systems from agricultural landscapes. In Mississippi, a simple process of controlled surface drainage is being advocated in drainage ditches within agricultural landscapes....