The reorganization of pastoral life in the twentieth century was inextricably bound to the rise of industrial agriculture and the forms of resource extraction that accompanied it. The places that witnessed the most sweeping ecological changes, from labor-intensive plantation agr…
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This dissertation examines the drivers and socioeconomic process of the conversion of rangeland to irrigated crops in Janos County, Chihuahua since 1970. The research was motivated by a desire to understand why irrigated agriculture was expanding in this site when there were no …
The primary focus of this research is the poorly understood relationship between water insufficiency and broad-scale social change, in the semi-arid lower Salt River Valley, in central Arizona. The overarching research question guiding this research is if water insufficiency cou…
This thesis presents an independent, sediment-based record of landscape change within an agricultural hinterland. Established historical and archaeological sequences document the primary occupation of Anuradhapura, Sri Lanka’s ancient capital, beginning ca. 400 BC and lasting un…
This is a practical guide which general and specific practices in oil palm nurseries to produce healthy, vigorous and uniform plants ready for field planting. Oil palm is the world's top oil crop
This second edition of Citrus, like the original by F.S. Davies and L.G. Albrigo, intends to provide the reader with an updated overview of citriculture from a worldwide perspective. Current theories and technological advances in citriculture are emphasized, citing specific exam…
"Citrus, 2nd Edition covers the biology and cultivation of citrus and considers the citrus industry from an international perspective. Fruits including oranges, mandarins, lemons, limes, grapefruit and hybrids such as tangelos are covered and the fundamental topics of taxonomy, …
Drainage water recycling is a sparsely studied agricultural management practice which has the potential to both improve yields and reduce adverse water quality effects of row crop agriculture. This practice captures and stores subsurface drainage from agricultural fields for sup…
Institutions for collective action are vital to accomplishing a variety of difficult developmental tasks, including irrigation management. For decades experts have argued collective action institutions for farmer participation, called water user organizations, are essential for …
Through a study of its natural environment and irrigation system, this dissertation investigates the evolution of the landscape of Egypt's Fayyum depression across sixteen centuries, from the third century BCE to the thirteenth century CE. From the evidence of Greek papyri, Arab…
Water scarcity and severe environmental degradation are causing water managers in Central Asia to reevaluate irrigation water use. The objective of this research was to investigate cropping systems that could improve food security in rural areas of the Fergana Valley of Uzbekist…
Yemen is a water scarce country. Like many other developing countries, it is constrained by a lack of natural resources and finds it difficult to secure sufficient water for human consumption and for agricultural irrigation. This raises the question of how to design actions and …
Through a study of irrigation and water usage, this dissertation examines the function and eventual demise of a system of Ottoman imperial natural resource management and balance over the course of the long eighteenth century (1650 to 1820). Using both Arabic and Ottoman Turkish…
Water resources in southern New Mexico are limited so efficient usage is required. Onions are a major crop in New Mexico, requiring frequent irrigation because their roots are shallow. Onion growers rarely know water requirements for their locations, so they apply more water tha…
Scope and method of study. Currently, Saudi Arabia faces a severe water shortage problem which has been attributed mainly to the imbalanced use of national groundwater resources especially by the agricultural sector. A linear-dynamic programming model was developed to determine …
Genome-wide association mapping shows promise for identifying quantitative trait loci (QTL) for many traits including drought stress tolerance. Candidate gene analysis also has been used to identify functional single nucleotide polymorphisms (SNPs) that can be associated with im…
As the world population increases and resources become more coveted, water emerges as a key component to global food security. The Middle East and North Africa (MENA) is among the driest regions in the world: containing just one percent of the world's freshwater resources. An in…
This thesis examines technological and social mechanisms of British imperial water control as created and managed by British irrigation engineers in Egypt between 1882 and 1914. In the aftermath of the British military conquest of the Ottoman colony, irrigation engineering was l…
An alfalfa (Medicago sativa L.) field study was established in 2011 at the University of Wyoming Research and Extension Center in Powell, WY. The objectives of the study were to determine: a) the daily and seasonal water use and the water use efficiency (WUE) of alfalfa grown un…