Interrow spacing and sugarcane yield in a diversity of climates: A major review

Autor(es)

Gasparotto, Leticia G. ^[1] ; Rosa, Juliano M. ^[1] ; Marin, Fabio R. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Luiz de Queiroz Coll Agr ESALQ, Dept Biosyst Engn, BR-13418900 Piracicaba, SP - Brazil

• Tipo de documento: Artigo de Revisão
• Fonte: AGRONOMY JOURNAL; v. 112, n. 6, p. 4550-4557, NOV-DEC 2020.
• Citações Web of Science: 0

Resumo

The reduction of sugarcane interrow spacing has the potential to increase crop yield, but research results concerning sugarcane cultivation in Brazil and worldwide remain inconclusive. Therefore, the objective of this review was to evaluate the influence of interrow spacing on the stalk fresh yield (SFY) of sugarcane and to identify the most appropriate interrow spacing in different climates and water regimes (irrigated or rainfed). In this study, a broad review of published studies was conducted to gather experimental data and evaluate the influence of interrow spacing on sugarcane SFY. A total of 28 relevant studies was used, including 170 field experiments in nine countries. Field experimental data were grouped on the basis of similarity of climate, using hierarchical cluster analysis for rainfed and irrigated experiments. Analysis of variance was used to evaluate whether there was a variation between the SFY values, and Tukey tests were applied to compare the SFY means for each interrow spacing. The results indicated that SFY significantly increased as interrow spacing was reduced. Interrow spacing of 90 cm had the greatest SFY (p < .01) for both irrigated and rainfed treatments. The lowest average SFY values were among spacings from 150 to 180 cm, which are most frequently used in the largest-producing countries, depending on the climate zone and water regime. Despite the increase in yield, the use of narrower interrow spacing is limited mainly due to the soil compaction and sugarcane stool damage caused by the currently used tillage and harvesting machines. (AU)

• Processo FAPESP: 17/20925-0 - Atlas de eficiência agrícola do Brasil: quantificando o potencial de intensificação sustentável da agropecuária brasileira
• Beneficiário: Fabio Ricardo Marin
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 17/50445-0 - Brazilian yield-gap atlas: assessing the potential for sustainable intensification of Brazilian agriculture
• Beneficiário: Fabio Ricardo Marin
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 18/06396-7 - Quantificação e decomposição do déficit de produtividade de usina de cana-de-açúcar
• Beneficiário: Leticia Gonçalves Gasparotto
• Modalidade de apoio: Bolsas no Brasil - Mestrado