Prior research into variable-rate application (VRA) of fertilizer nutrients has found profitability to be lacking in single nutrient applications to U.S. cereal crops. This study examines the yield and cost effects of VRA phosphorus, potassium and lime application on Michigan corn and soybean...

Virtually all technology adoption studies are conducted ex post, yet policy makers often need to assess the likely level of adoption before the technology is introduced. This study uses data from a contingent valuation survey of Michigan corn growers to assess what factors would influence the...

Soil erosion seriously threatens the future agricultural productivity of Ethiopia's highlands. In analyzing the determinants of soil conservation investments there, this study goes beyond the conventional physical factors to examine institutional, social capital and public program effects. The...

Este documento es un manual de estadística para economistas aplicados que usan el programa estadístico SPSS. Está diseñado para ser usado dentro de un taller de capacitación de una semana, y tiene como propósito familiarizar a profesionales de la investigación con procedimientos...

Sustaining natural resource stocks especially those underpinning the capacity to produce food is key to most definitions of sustainable development. Yet troubling evidence has surfaced of instances where the rural poor were forced to sacrifice long-term sustainability for the sake of near-term...

The most severe challenges to sustainable development occur where many poor people struggle to eke out a living from marginal lands. In some cases, high human populations on fragile lands have led agricultural productivity to deteriorate (García-Barrios and García-Barrios, 1990, Mink, 1993,...

This capital budgeting case evaluates the feasibility of adding an auxiliary enterprise to a feed milling operation that an agricultural supply cooperative is considering purchasing. Both quantitative and qualitative objectives are taken into consideration regarding the cooperative's financial...

The Pakistan Agricultural Sector Model (PASM) developed by Davies et al. (1991) was modified to enhance the livestock sub-sector. Nutrient-based rations replaced feedstuff-based rations and dry matter minimum and maximum constraints (stomach capacity) were added. Several initial simulations were...