Effect on defoliation by a WIC-Amity DEF 0624 on beet quality and storability
2001
Linden, J.P. van der | Huijbregts, A.W.M. (Institute of Sugar beet Research, Bergen op Zoom (Netherlands))
The Dutch sugar industry requires certain quality of topping. Too much tops and leaf on the beet means a penalty or when the number of sugar beet with leaf rests more than 2 cm is more than 30/, the load will be rejected. The advice for the practice is a maximum of 5/ overtopped beet and 15/ beet with leaf rests more than 2cm. In 1999 a 6-row defoliator is compared with a standard topping system and some prototypes. The test machine, trade mark WIC-Amity DEF 0624, has three axles with rubber studded flails. The results show an improvement in the topping of the beet. No top losses, a big part of the top of the beet can be harvested and hardly any leaves remained on the beet. The effect on storability was small. By visual judgment sprouting seemed somewhat less with WIC + topping compared to the standard topping and the WIC defoliation. For the individual Dutch grower it means that the top losses (inseparable bound up with a standard topping system) more or less equals the penalty for the extra top tare. Introducing into the practice of the tested version is difficult because it is too heavy and too big to be integrated in existing self propelled tanker harvesters. Further development is required to solve these problems.
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