Acta Univ. Agric. Silvic. Mendelianae Brun. 2013, 61(3), 751-756 | DOI: 10.11118/actaun201361030751
Evaluation of harvest losses within a full mechanised grape harvest
- Department of Horticultural Machinery, Mendel University in Brno, Valtická 337, 691 44 Lednice, Czech Republic
A contribution deals with an evaluation of harvest losses within a full mechanised berries harvest using two self-propelled harvesters GREGOIRE G 152 and NEW HOLLAND VL 6060 differing in kinds of harvesting and catching mechanisms. Observation was done in vineyards of ZVOS Hustopeče joint-stock company at harvest of Müller Thurgau and Lemberger varieties in a period 2009-2010. Results gained under operating conditions showed that both self-propelled harvesters reached a comparable quality of a harvested product. There were observed losses by a slump in a case of using GREGOIRE G 152 harvester 0.8-1.45%. By using NEW HOLLAND VL 6060 the losses were 0.86-1.52% and data were gained with a respect to vine condition, the variety and the vintage. Next to losses by the slump also losses as non-harvested product were observed. Using GREGOIRE G 152 were reached 1.08-2.56% of non-harvested product losses and in a case of NEW HOLLAND VL 6060 similarly 1.17-2.22%. However a value of the non-harvested product losses cannot be perceived absolutely because in a practice the non-harvested grapes are consequently picked up manually. Total losses perceived as a sum of losses by the slump and non-harvested losses values were at GREGOIRE G 152 harvester 2-4% and at NEW HOLLAND VL 6060 harvester 2-3.7% of total hectare yield.
Keywords: viticulture, mechanical harvesting process, self-propelled harvester, berries lost
Received: January 23, 2013; Published: May 23, 2013 Show citation
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