Nitrogen balance is increasingly used as an indicator of the environmental performance of agricultural sector in national, international, and global contexts. There are three main methods of accounting the national nitrogen balance: farm gate, soil surface, and soil system. OECD (2008) recently...

Nutrients balance such as nitrogen and phosphorus balance are increasingly used as an indicator of the environmental performance of agricultural sector in international and global context. However there still is a lack of harmony in the use of methods for estimating the nutrients balance among...

This paper explores the factors that affect students’ evaluations of economics instructions using a sample of over 2400 completed questionnaires at a large Australian university. Ordered probit analysis is used to determine the changes in the predicted probability of teaching evaluation...

With persistent population growth, a dwindling supply of arable land per capita, and the relatively high income elasticity of demand for food in developing countries, there is a growing need for food supply increases to originate from growth in productivity rather than expansions in inputs. In...