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Sugar production in northeastern Brazil and Cuba, 1858-1908Denslow, David, January 1987 (has links)
Thesis (Ph. D.)--Yale University, 1974. / Includes bibliographical references (p. 168-172).
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ʻUtsānhakam namtān nai Prathēt Thai rawāng pī Phō̜. Sō̜. 2453-2506Somphong Sanyāwirat. January 1987 (has links)
Thesis (M. Ed.)--Srinakarinwirot University, 1987. / In Thai; abstract also in English. Title from leaf [145]: The sugar industry in Thailand between B.E. 2453 and 2506. Includes bibliographical references (leaves [128]-142).
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A framework to improve irrigation design and operating strategies in the South African sugarcane industry /Jumman, Ashiel. January 2009 (has links)
Thesis (M.Sc.Eng.)-University of KwaZulu-Natal, Durban, 2009. / Full text also available online. Scroll down for electronic link.
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Simulation modeling of irrigation requirements for sugarcane production in Sindh Province, PakistanQureshi, Suhail Ahmad. January 1999 (has links)
Over-irrigation and poor internal drainage of soils in the Indus basin of Pakistan have resulted in waterlogging and salinity problems, severely affecting agriculture. These problems may be solved by subsurface drainage or more efficient irrigation water management. Since drainage system installation is relatively expensive Pakistan, efficient irrigation management practices e.g., irrigation scheduling and on-farm water management are cheaper alternatives. / A soil water simulation model, SWAP93, was used to evaluate the effects of water stress on crop yield, water use efficiency (WUE) and crop water use in sugarcane [Saccharum officinarum L.]. This information was used to determine water management practices, which can reduce salinity and waterlogging / Drainage fluxes and evapotranspiration simulated by the model were compared with those measured in drainage lysimeters (water tables controlled at 1.5 m and 2.25 m from the soil surface) for 1989 and 1990. Drainage fluxes were overestimated, and evapotranspiration underestimated. The model's original grass-based evapotranspiration (ET) was changed to an alfalfa-based one, resulting in a better estimation of drainage fluxes and ET. / The effects of soil water balance, simulated by the SWAP93, on the crop yield, WUE and crop water use were assessed using twelve irrigation treatments consisting of four irrigation amounts (1800, 1650, 1200 and 900 mm) factorially combined with three irrigation intervals (7, 10 and 15 days) for seven years of climatic data. / Crop yields increased linearly with irrigation of 1200 mm during the growing season, Crop yield, ET and WUE were not significantly different for irrigation amounts ranging from 1200 to 1800 mm. When the total applied water was above 1400 mm, the crop yield showed a plateau. This maximum yield was reached because irrigation water was remained in the soil profile or percolated into deeper layers at high levels of irrigation application. / For a 7-day irrigation interval, the 1200 mm treatment showed water deficits during the middle of the growing season, whereas for 10- or 15-day irrigation intervals, water deficits were negligible. / A 3rd degree polynomial relationship between cumulative irrigation amount and drainage fluxes was developed, allowing a daily estimation of irrigation amount for a given percolation or capillary rise. This relationship can be used to optimize irrigation amounts, and evaluate their impacts on percolation losses. / From the results of this simulation study, it was predicted that the 1200 mm---15 irrigation application treatment (15 day interval) was best for irrigation scheduling to reduce salinity and waterlogging.
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A strategic analysis of sugar cane supplies from a miller cum planter to a sugar mill in KwaZulu-Natal.Russell, Paul William. January 2003 (has links)
This is a case study of an irrigated sugar cane Estate owned by the Company that mills sugar cane from the irrigated farms that make up the Estate and also from a wide range of other suppliers. The agricultural land on which the sugar cane is grown is threatened by divestiture in that the Mill could conceivably obtain supplies from other Private Growers and other contracted suppliers who are the potential purchasers of divested land. This is the problem that the research addresses. The case study addresses this problem by analysing the relationship between a specific sugar mill and its company owned Estate which supplies cane to the Mill, from irrigated sugar cane lands. In other cane growing areas Estate operations have been divested and the cane supplies outsourced to Private Growers. The case study evaluates this management strategy in the particular case of the Heatonville irrigation Estate supplying sugar cane to the Felixton sugar mill, both of which are owned by Tongaat-Hulett Sugar
Limited. In 1993 the Company had vertically integrated backwards, and invested in agricultural land in a move to secure strategic cane supplies for the Felixton Mill. The Mill was at that time, and still is, under supplied with sugar cane on an annual basis. The case study provides a review of the relevant literature in the fields of vertical integration, divestiture and outsourcing which are concepts that can be related to the actions that the Company is taking in selling off significant potions of its agricultural land holdings. An overview of the concepts of marginal cost and marginal revenue are given in order to assist in the understanding of the relationship between the sugar mill and the Company owned Estate. The research design is guided by five main research questions around which the methodology and data collection processes are focused. These research questions are all related to the research problem. Computer generated budget models are used to evaluate financial and production information, with the assistance of tables and graphs. The
specific relationship that the Estate has with the Mill in terms of its financial contribution towards milling revenues is also highlighted as a strategic benefit. A summary of results is presented by answering the specific research questions. The case study concludes that the Heatonville Miller Cum Planter irrigation operation provides strategic cane supplies to the Felixton Mill, which if outsourced to third parties may be at risk. The case study makes no attempt to generalise findings to other cane growing irrigation schemes. However where similar situations prevail management decisions could well be guided by the findings of this study, given the systematic application of the budget models in each situation. / Thesis (MBA)-University of Natal, Durban, 2003.
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On the modeling of sugar cane transport by road /Raicu, Raluca. Unknown Date (has links)
Thesis (PhD)--University of South Australia, 2001.
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The Cuban Sugar Restructuring Program (2002-2004) a case study of Artemisa, Cuba /Hobbs, Darryl. January 2005 (has links)
Thesis (M.A.)--York University, 2005. Graduate Programme in Geography. / Typescript. Includes bibliographical references (leaves 135-138). Also available on the Internet. MODE OF ACCESS via web browser by entering the following URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004 & res_dat=xri:pqdiss & rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation & rft_dat=xri:pqdiss:MR11809.
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Simulation modeling of irrigation requirements for sugarcane production in Sindh Province, PakistanQureshi, Suhail Ahmad. January 1999 (has links)
No description available.
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The making of the Ahupuaa of Laie into a gathering place and plantation : the creation of an alternative space to capitalism /Compton, Cynthia Woolley, January 2005 (has links) (PDF)
Thesis (Ph. D.)--Brigham Young University. Dept. of History, 2005. / Includes bibliographical references (p. 289-299).
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A study of the cane sugar diffusion process.Rein, Peter William. January 1972 (has links)
A mathematical model has been developed to
represent the extraction of sugar from sugar cane in the diffusion
process. As a consequence of the structure of prepared cane,
extraction is postulated to occur via two first order relations in
parallel.
The model was found to represent accurately the
extraction behaviour observed in two different experimental
configurations. Experiments on a laboratory scale were undertaken
to elucidate the mechanism and basic rates of extraction.
The results are consistent with the postulate that extraction takes
place by a combination of washing and molecular diffusion.
The diffusion process was simulated experimentally
in a fixed-bed pilot plant diffuser. Model parameter values
estimated from this data provide evidence of the effect of liquid
hydrodynamics on the extraction process. These results have
been interpreted in terms of liquid holdup, liquid velocities and
the efficiency of liquid- solid contacting.
It is shown how the model can be applied to full scale
diffusers of the moving-bed type, which will enable prediction
of performance and the choice of optimum operating conditions. / Thesis (Ph.D.)-University of Natal, Durban, 1972.
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