Many people have tried to analyze what the future holds for continued increases in crop yields. After studying time series of average U.S. yields for 19 crops, Lin and Seaver [6] concluded that 12 crops including corn, cotton, and wheat have reached yield plateau, and the seven remaining crops...

During the last decade, two concerns have been raised about the future of U.S. crop production. These concerns are: A) Will the United States have enough land available in the future that is suitable for crop production? and b) What will future crop yields be? Future U.S. crop production is...

People concerned with planning and analysis of the agricultural sector are faced with two general problems which in turn gives rise for two general types of models. One problem involves positive or predictive models which attempt to predict the "real world" as it actually exists based on...

Many people have tried to analyze what the future holds for continued increases in crop yields. After studying time series of average U.S. yields for 19 crops, Lin and Seaver [6] concluded that 12 crops including corn, cotton, and wheat have reached yield plateau, and the seven remaining crops...

During the last decade, two concerns have been raised about the future of U.S. crop production. These concerns are: A) Will the United States have enough land available in the future that is suitable for crop production? and b) What will future crop yields be? Future U.S. crop production is...

There is a growing tendency in the United States for decentralized public policymaking concerning agricultural production and resource use. Regional differences in climate, soil characteristics, water resource development, and input factor costs present each region with a unique situation....

Sound policy decisions concerning the complex interrelationships between sustainable agricultural production potential, resource use, technical change, and the environment, require much detailed information on the site-specific nature of resource inputs and alternative land-use practices over...

People concerned with planning and analysis of the agricultural sector are faced with two general problems which in turn gives rise for two general types of models. One problem involves positive or predictive models which attempt to predict the "real world" as it actually exists based on...

The premises behind Task 2 of the International Institute for Applied Systems Analysis (IIASA's) Food and Agriculture Program are that the basic agricultural resources will, over a long run time horizon, become more scarce and expensive, that changes in the availability and the relative prices...

A multiperiod regional-national recursive system is formulated to model the interrelationships between agricultural production, resource use, and the environment, in a region nested within a national market. The system consists of three main components: a linear programming model of a region; an...