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Details van artikel 5 van 66 gevonden artikelen
| Titel: |
Assessment of Optimum Farm Size According to the Different Machinery Systems by a PC Model |
| Auteur: |
Cevdet Saglam Mustafa Vatandas Refik Polat |
| Verschenen in: |
Journal of agronomy |
| Paginering: | Jaargang 5 (2006) nr. 2 pagina's 356-361 |
| Jaar: |
2006 |
| Inhoud: |
Two different programming models are described. One model, Computed Tractor Workable Days (CTWD) determines the tractor workable days in the field operations taking into account weather uncertainty, temperature, raining and snowing. The second model is Linear Programming Model (LPM) determining optimum field size depend on the data determined by CTWD for different six machine sets. In the CTWD model workable days can be determined for 50, 60, 70, 80 and 90% probability levels. However, in this study calculations were done according to the 80% probability level. CTWD was used to determine workable days between two selected dates` days. Firstly it calculates average workable days for each crop term according to the uncertainty whether conditions, then determine probably workable days. Finally, full workable days determined by program extracting the religion and national festival days from probability workable days. LPM allows an economic comparison to be made of tractor capacity and optimum field size. For example, 57.7 kW tractor was used for 17.67 ha in Harran plain in Sanliurfa, Turkey. According to the results of LPM, however, it was determined that the same tractor could operate 57.88 ha and 17.67 ha needed 20.48 kW tractors. |
| Uitgever: |
Asian Network for Scientific Information (provided by DOAJ) |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 5 van 66 gevonden artikelen
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