Forecast Model of Sugar Loss Due to Mechanical Harvesting of the sugarcane crop

摘要: mechanical harvesting brings about a great advantage to cane grower. Time saving and cost reduction are important merits, but the becomes harmful whenever it is applied under unsuitable conditions. Namely, Long delay in milling of harvested billets during sugarcane crops will cause loss juice from torn cells, commencement respiration enzymatic processes living tissues billet abrasion failure points ultimately reducing purity sugar content due sucrose inversion. The aim present research, having been carried out Khuzestan Amirkabir Agro-industry Unit farms, was estimating quality degradation resulting harvesting. For predicting loss, regression model including explanatory dummy (qualitative) quantitative variables used. Quantitative included eight interval times 30 minutes, 6,12,18,24,36,48 72 hours between sugarcane. Qualitative were with four grades damage, i.e. sound, light, medium heavy damages dependent variable billets' ratio. Results showed that more than 92% ratio changes described by different damage degrees time mill. It inferred results qualitative data most factors declining quantity refined post time; so comparison damaged regressions one hand base (sound billets) other, shows statically significant differential slope coefficient for two types billets.