This experiment aimed to assess the damage caused in the sugarcane ratoon by the wear of the base cutter blades over 5 h of effective harvester work and the influence of the damage on the growth and productivity of the next harvest. The experiment was carried out in Lençóis Paulista, São Paulo state, Brazil, in a commercial area. The crop was in the cane plant cycle, and the damage caused by the base cutting to the clump was evaluated during the harvest. The tillering and the percentage of sprouting failures were evaluated during the growth of the plants in the second cycle to verify the damage in the crop. Evaluations were made in each hour of work of the harvester, according to a completely randomized design. The variables evaluated included wear of base cutter blades, number of stumps and stalks, tillering, percentage of sprouting failures, cut quality and productivity. A statistical analysis was performed using the Friedman test. The action of the base cutter lifted the stumps, but there was no increase due to wear of the blades. There was a reduction in cut quality and crop yield in the following harvest due to an increase in the wear of the base cutter blades from the third hour of work.

中文翻译：

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机械收割的甘蔗的基切质量和生产率

该实验旨在评估在有效收割机工作5小时后，基础割草机刀片的磨损对甘蔗再生区造成的损害，以及损害对下一次收获的生长和生产力的影响。该实验是在巴西圣保罗州LençóisPaulista的一个商业区进行的。作物处于甘蔗种植周期，在收获过程中评估了基割对团块造成的损害。在第二个周期的植物生长过程中评估了分and和发芽失败的百分比，以验证对作物的损害。根据完全随机的设计，在收割机的每个小时的工作中进行评估。评估的变量包括基础切割刀片的磨损，树桩和茎的数量，分er，发芽失败的百分比，降低质量和生产率。使用弗里德曼检验进行统计分析。基础切割机的动作抬起了树桩，但由于刀片的磨损而没有增加。由于工作的第三个小时开始，基础切割刀片的磨损增加，因此在随后的收获中，切割质量和农作物产量下降。