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  • 标题:Produtividade de genótipos de cana de aúcar em resposta à aplicao de calcário em microclima do semiárido brasileiro
  • 本地全文:下载
  • 作者:Marianne Costa de Azevedo ; Edson de Souza Silva ; Lucilo José de Morais Almeida
  • 期刊名称:Research, Society and Development
  • 电子版ISSN:2525-3409
  • 出版年度:2021
  • 卷号:10
  • 期号:7
  • 页码:1-14
  • DOI:10.33448/rsd-v10i7.16784
  • 语种:English
  • 出版社:Grupo de Pesquisa Metodologias em Ensino e Aprendizagem em Ciências
  • 摘要:For the sugarcane field to produce satisfactorily, it is necessary to cultivate sugarcane genotypes that are adapted to the edaphoclimatic conditions of the region, in addition, it is also necessary to correct the soil so that the plant can extract from the soil all the nutrients necessary for its development. The objective of this work was to evaluate the productivity of sugarcane genotypes cultivated with and without liming during the cane-plant and ratoon cane cycles. The experimental design used was in DBC, with 4 replications, in a 10 x 2 factorial scheme, with 10 sugarcane genotypes and two lime managements (with and without application). The amount of lime applied was calculated based on the base saturation elevation formula with the result of the soil analysis, using 4.5 t ha-1 of lime incorporated into the soil in the sugarcane plant and 2.8 t ha- 1 on the surface of the cane. Plant height, average stem diameter, number of stems per meter, number of internodes, oBrix, productivity were evaluated. The data were subjected to analysis of variance and the means compared to each other by the Scott-Knott test. The results show that in the cane plant, limestone promoted an increase in plant height, stem diameter, stems per meter, and productivity. In soca cane, limestone positively influenced the number of stems per meter, and productivity, with ° Brix the only variable negatively affected. The genotypes that responded best to liming were RB93509, RB002754, RB962962, RB992506 and SP79-1011.
  • 关键词:Liming;Plant cane;Ratoon cane;Saccharum officinarum.
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