In two 1999 Arizona studies, a preplant incorporated (PPI) application of Prowl (2.4 pt/A) or Treflan (0.75 lb a.i./A) followed by a topical Roundup Ultra (1 qt/A) application at the 3 to 4 true leaf cotton growth stage provided good weed control. At the University of Arizona Maricopa Agricultural Center field that had low density weed populations, a postemergence topical Staple (1.8 oz/A) application also provided good weed control was more expensive. At the Buckeye, Arizona study site, a PPI application of Prowl at a reduced rate (1.2 pt/A) was as effective as the full rate (2.4 pt/A) but a preemergence application of Prowl (2.4 pt/A) was not as effective as either of the PPI Prowl rates or PPI Treflan (0.75 lb a.i./A). A postemergence topical Staple application (1.8 oz/A) following the Roundup Ultra application did not significantly improve weed control. After one field season of experimentation and observation in Arizona UNR cotton, experience suggests that in fields with low to moderate weed populations, a PPI Prowl or Treflan application followed by a postemergence topical Roundup Ultra application will provide acceptable weed control in most fields. However, the presence of nutsedge or other difficult to control weeds may require two postemergence topical Roundup Ultra application prior to the four leaf growth stage of cotton. More research is needed to further explore weed control options in Arizona UNR cotton production systems.

A preliminary investigation was made in Ultra-narrow row cotton production on the Safford Agricultural Center to see if there was any promise in that technology for cotton producers in the high deserts of Arizona. Increases in plant populations to near 100,000 plants per acre in single lines, double lines and quadruple lines per bed were the goals of the study. In-season plant mapping to evaluate differences in plant growth characteristics were done along with yield measurements to evaluate differences. Yield increases were not seen with increases in plant populations in single row plantings nor in multiple row plantings.

Seven commercial ultra narrow row (UNR) cotton fields were monitored on a weekly basis in Maricopa County, AZ in 1999. Varieties of Delta Pine and Sure Grow were planted from April 15 to June 1 and reached cut-out after accumulating 1913 to 2327 heat units after planting. Average yield for UNR cotton was 2.1 bales per acre which was 0.4 bales per acre lower than the five year average for cotton planted on conventional row spacings. Fiber quality from gin records for 801 bales had average micronaire readings of 4.54 and grades of 11 and 21 for 74% of bales. Discounts for extraneous matter (bark, grass, and cracked seed) was 5.4% and average strength (34.8) and staple lengths (27.12) were in acceptable ranges. Total cash costs ranged from $450 to $705.

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In this thesis, I undertake a study of rapid condominium growth occurring in the City of Toronto, Canada, and the emergence of an ultra-luxury condominium market during a time of global financial instability. This thesis examines the influence of rapid growth on Toronto as a world city during this time by asking the following research questions: 1. Why has Toronto become a place of safe investment for condominium buyers during a time of global economic uncertainty? 2. Why has the ultra-luxury market emerged in Toronto? What are the driving forces behind it, how does it contribute to Toronto’s standing as a world city, and what does the future hold for this niche market? 3. What is the current state of the condominium market in Toronto and what can we expect to see happen in the near future? To answer these questions, this thesis draws insights from urban, political, economic and social geographic literature, statistical and policy data, as well as twenty-five (25) semi- structured interviews with a variety of key industry stakeholders in the City of Toronto. The results of this study point to a changing demographic landscape in a city where fundamental elements have not only secured Toronto’s reputation as a place of safe investment, but also created an environment of pent up demand leading to the emergence of the ultra-luxury condominium market. The City of Toronto has garnered international attention for its rapid rate of high-rise growth, and continues to craft its reputation as a world city through the addition of four, 5-star hotel condominiums. Additionally, this thesis recognizes the pressing social, environmental and political issues that accompany this recent, rapid growth, and provides general recommendations for addressing these complex topics through the suggestion of future research on the topic. / Thesis (Master, Geography) -- Queen's University, 2013-04-29 12:28:08.426