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首页> 外文期刊>Australian Journal of Crop Science >Productivity and technological quality of sugarcane cultivars fertigated and planted through pre- sprouted seedlings
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Productivity and technological quality of sugarcane cultivars fertigated and planted through pre- sprouted seedlings

机译：通过预萌芽苗施肥和种植的甘蔗品种的生产力和技术质量

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The increase in sugarcane production in Brazil does not only depend on the increase of cultivated areas. It also needs alternativesto increase productivity. These alternatives include irrigation, planting method, and development of new cultivars. In this scenario,the use of pre-sprouted seedlings is particularly relevant because it ensures high phytosanitary standards and uniform crops. Theobjective of this work was to evaluate the productivity and technological characteristics of five sugarcane cultivars that wereplanted through pre-sprouted seedlings and conducted with and without supplementary irrigation in the second growing year. Theexperiment was conducted at the FCAV/UNESP, in Jaboticabal, S?o Paulo state, Brazil, from 2015 to 2016. The treatments weredistributed in a partially balanced incomplete block design, with three cultivars per block. Supplementary irrigation was performedwhen there was an accumulated water deficit of 30 mm. Reference evapotranspiration was calculated according to the FAO-56method. The evaluated sugarcane cultivars were: CTC 4, IACSP 93-3046, RB 86-7515, IACSP 95-5000, and IAC 91-1099. The totalirrigation depth applied during the cycle was 360 mm. Supplementary irrigation triggered a decrease in the sugarcane technologicalindices, mainly for the cultivars CTC 4 and IAC 91-1099, presenting a 15% apparent sucrose (POL%) cane reduction in the non-irrigated treatment, and 14% in the irrigated. Cultivar IAC 91-1099 stood out in the productivity of sugar and stalks, withproductivities of 24.16 t ha -1 of sugar and 166 t ha -1 of stalk under irrigation using pre-sprouted seedlings.
机译：巴西甘蔗产量的增加不仅取决于耕地面积的增加。它还需要替代方案来提高生产率。这些替代方案包括灌溉，种植方法和开发新品种。在这种情况下，使用预先发芽的幼苗特别重要，因为这样可以确保较高的植物检疫标准和统一的作物。这项工作的目的是评估在第二个生长年中通过预萌芽幼苗种植并在有无灌溉条件下进行种植的五个甘蔗品种的生产力和技术特征。实验于2015年至2016年在巴西圣保罗州Jaboticabal的FCAV / UNESP进行。处理以部分平衡的不完全块设计进行分配，每个块三个品种。累积缺水30毫米时进行补充灌溉。参考蒸散量是根据FAO-56方法计算的。评估的甘蔗品种为：CTC 4，IACSP 93-3046，RB 86-7515，IACSP 95-5000和IAC 91-1099。在循环过程中施加的总灌溉深度为360毫米。补充灌溉引发的甘蔗技术指标下降，主要是品种CTC 4和IAC 91-1099，在非灌溉处理中蔗糖减少了15％，蔗糖减少了14％（表观蔗糖）。 IAC 91-1099品种在制糖和秸秆的生产力方面表现突出，在使用预先萌芽的幼苗进行灌溉的情况下，生产力为24.16 t ha -1的糖和166 t ha -1的秸秆。

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