In this study, it was aimed to compare the economic aspect of different applications of composts obtained from solid wastes of rose oil processing (RC) applications in organic apple production. The data used in the study were obtained from the experiments carried out in Egirdir Fruit Research Institute of Food, Agriculture and Livestock Ministry, Turkey. The trial was carried out with a total of 6 applications consisting of 5 different nutritional applications (RC, ERC (50%) (half dosage of the enriched RC, ERC (100%) (full dosage of the enriched RC, AB (azotobacter), and ST (standard application: 50% commercial solid organic manure +50% commercial liquid manure)) and 1 control (no nutrients applications). According to the results of the research, it was determined that apple production in all treatments was higher than control application. The result showed that the highest yield was determined for ERC (100%). The production costs per decare of the organic production in all treatments were found to be higher than the control application. Production cost was 854.97 USD da-1 in control application, while it varied between 914.61 USD da-1 and 984.79 USD da-1 in all treatments. When a comparison was made in terms of net profit, it was determined ...
System profitability analysis and carbon (IV) oxide emission saved by an indirect passive solar cabinet dryer for tomatoes drying was evaluated under Bauchi (Nigeria) prevailing weather condition. Dryer minimum annual throughput of 27.89 kg occurred in the design month of August at 180 days of drying with thermal energy output of 262.55 kWh. Financial analysis indicated a minimum annual cash flow of ₦7,826.61 for electricity energy saved with a payback period of 14.22 years which is less than the economic useful life of the dryer in the design month, while preventing 105.02 kg of carbon (IV) oxide emission. This illustrates a conventional energy cost saving method for drying high moisture crop using a cleaner form of energy. The study recommends the development and adaptation of solar dryers with auxiliary heating units for proper harnessing of solar energy for environmental sustenance and economic growth.
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