Managed honey bee (Apis mellifera L.) populations have steadily declined in the Unites States over the last 60 years (NRC 2006). An estimated 35% of the western human diet benefits from honey bee pollination (Klein et al., 2007). Previous work on honey bee disease tends to conce…
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This study documents the Ghanaian experience in the economic development of kola nuts as a major cash crop from the mid nineteenth century to the early twentieth century. It examines the production, marketing, and organisation of the kola nut trade in Ghana (Gold Coast and Asant…
CliCrop is a simple 1-dimensional crop simulator for investigating both predicted future yields and possible solutions for future yield improvements. CliCrop is an immediate response to a study on Niger by the United States Agency for International Development (USAID), where the…
This thesis examines the use of specific agricultural inputs in crop yields of sugarcane, maize, wheat, and rice in the three major provinces of Pakistan from 1985 to 1989. The effect of inputs like fertilizers on crop yields is expected to be positive, however the evidence sugg…
It is common for producers to utilize small grain companion crops when establishing perennial grasses and legumes, but research has historically focused on the use of small grain companion crops on the establishment of legumes. A study was established at three locations across N…
Located on the Taraco Peninsula on the shores of Lake Titicaca in the Bolivian Altiplano, Alto Pukara was a Middle Formative site inhabited between 400 and 800 BCE by the Chiripa peoples. Alto Pukara is the smallest site on the peninsula centered around its own platform chamber …