Mostrando ítems 21-30 de 86
Quantifying and valuing the joint production of grain and fodder from maize fields: Evidence from Northern Pakistan
Simple methods are proposed for measuring the relative importance of grain and fodder produced jointly from maize fields in four zones in northern Pakistan. These methods suggest that the joint production of grain and ...
Past and potential impacts of maize research in Sub-Saharan Africa: A critical assessment
Over the past twenty years, research progress in maize, the single most important food staple in sub-Saharan Africa, has been comparable to progress in other primarily smallholder maize systems in the developing world, ...
Wheat rusts and the costs of genetic diversity in the Punjab of Pakistan
The theory of impure public goods is used to demonstrate why farmers may nor grow wheat cultivars with the socially desirable level of rust resistance. First, they may grow cultivars that are high yielding though susceptible ...
A joint-product analysis of the adoption of modern cereal varieties in developing countries
Semi-dwarf wheat varieties have been slow to diffuse in some regions despite their superior grain yield. This paper analyses varietal differences in yields of the joint products of grain and straw, the decision to adopt ...