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Joanne Logan

or other consultant to provide a more realistic cost-benefit analysis of a typical rain barrel. The objective of this study was to develop a spreadsheet-based model based on daily weather data in Excel® (Microsoft Corp., Redmond, WA) to determine how

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Charles E. Barrett, Xin Zhao and Alan W. Hodges

pressure. Actual production costs for individual farmers will vary and for that reason only transplant costs were included in our cost–benefit analyses. This study was designed to provide a base line reference for growers interested in producing and using

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Ockert P.J. Stander and Paul J.R. Cronjé

expressed as milligrams per gram leaf dry weight and are referred to as leaf soluble sugars, leaf polysaccharides, and leaf starch, respectively. The sum values of the latter are referred to as leaf total carbohydrates. Cost-benefit analysis. Time (minutes

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Ramón A. Arancibia, Cody D. Smith, Don R. LaBonte, Jeffrey L. Main, Tara P. Smith and Arthur Q. Villordon

Institute, Cary, NC). Analysis of variance was performed by Proc Mixed and differences among means were adjusted by Tukey’s multiple range test ( P ≤ 0.05). Data are presented by variety and also by year due to interaction. Cost-benefit and marginal

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Lucas G. Paranhos, Charles E. Barrett, Lincoln Zotarelli, Tatiana Borisova, Rebecca Darnell and Kati Migliaccio

Seepage is characterized as an inefficient irrigation method with regard to water and nutrient use. There is a need for an economically viable irrigation alternative to seepage, which increases crop productivity and profitability in Florida. The use of plastic mulch and drip irrigation for cabbage (Brassica oleracea var. capitata) production increases plant population per area and reduces the irrigation water requirement. However, plasticulture has a high capital investment and operating cost. The objectives of this study were to compare the profitability of plasticulture cabbage production and traditional seepage bare ground irrigation systems for Florida cabbage production, and to determine the breakeven point for cabbage grown under plasticulture given a range of market prices. The preharvest cost per acre for the plasticulture system was significantly higher than the cost for the seepage system ($4726 and $3035 per acre, respectively). However, for all planting dates considered in this study, the plasticulture system resulted in a significant increase in marketable yields when compared with the seepage system. The resulting increase in potential revenue offset the increase in preharvest costs and assured a positive net return on investment over the whole range market prices. It was also observed that low air temperatures combined with reduced solar radiation can prevent optimum plant development for cabbage transplanted between November and mid-December. Therefore, the return on investment may be reduced during less favorable climatic conditions for cabbage growth, making the plasticulture system less economically desirable for certain planting dates.

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Laurence Gendron, Guillaume Létourneau, Julien Cormier, Claire Depardieu, Carole Boily, Raymond Levallois and Jean Caron

step, we conducted a cost–benefit analysis to compare the positive and negative effects of adopting an automated irrigation system for pulsed irrigation instead of the nonpulsed, manual management system commonly used in the area (referred to as

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Russell Galanti, Alyssa Cho, Amjad Ahmad and Theodore Radovich

were analyzed using a Costech 4010 elemental analyzer at the University of Hawaii at Hilo Analytics Laboratory. Partial cost–benefit analysis. A partial cost–benefit analysis was conducted using cost information from the farmer. Material and application

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Denise L. Olson, James. R. Nechols and Charles W. Marr

A survey conducted at farmers' markets in eastern Kansas showed that more consumers purchased pumpkins for jack-o-lanterns than for cooking. One to four jack-o-lantern pumpkins are purchased annually per consumer. Whether or not the pumpkins are treated with insecticides to control squash bugs and regardless of their intended use, consumers preferred U.S. no. 1 grade, which sell at the higher retail price of $0.33/kg. At least 90% of the consumers surveyed would pay 20% more than the retail price for insecticide-free pumpkins. About two-thirds of those polled would pay 30% more. Cost-benefit data indicate that the higher prices consumers would pay may not be sufficient for growers to produce insecticide-free pumpkins economically using only biological control. However, if biological control is integrated with host-plant resistance, the higher prices may be sufficient for growers to produce insecticide-free pumpkins.

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Mike Murray

The California processing tomato industry continues to utilize transplants as a primary method of obtaining final plant stands. About 75% of the anticipated 2006 acreage will be transpanted, up from 0% a scant 20 years ago. This trend is being driven by increasing hybrid seed costs, the desire to utilize the land for multiple crops per year, potential water savings, and enhanced weed management options. The history of this transition will be traced, identifying positive and negative impacts of reliance on transplants. An economic evaluation suggests that stand establishment using transplants costs at least $250 per acre more than direct-seeding. A cost-benefit analysis is considered. The movement to transplants has reduced seed sales and many hybrid seed variety prices are tripling in 2006, as seed companies attempt to recoup R&D costs with declining markets. This “differential seed pricing,” and its implications, are discussed in detail.

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Gary W. Stutte

Effective management of site variability has been shown to improve efficiency of chemical use, enhance of fruit quality, optimize irrigations and increase profits. Techniques for localizing and quantifying spatial variation through computer analysis of aerial imagery exist, but the detailed knowledge of soils, site history, and nutrition required for effective management of the variation often are not available in a readily accessible or timely fashion. As a consequence, the benefits of site-specific management have not been fully realized by horticultural managers. These limitations have been partially overcome by developing an information management system which integrates image analysis functions to identify crop stress, a geographic information system to relate stresses to resident and nonresident site factors, and custom spreadsheets that provide a cost/benefit analysis of various management decisions. The system allows a manager to visualize the probable impact of an intervention on variability, yield, and profits in a timely manner.