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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

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

Full text
Author(s):
Gasparotto, Leticia G. [1] ; Rosa, Juliano M. [1] ; Marin, Fabio R. [1]
Total Authors: 3
Affiliation:
[1] Univ Sao Paulo, Luiz de Queiroz Coll Agr ESALQ, Dept Biosyst Engn, BR-13418900 Piracicaba, SP - Brazil
Total Affiliations: 1
Document type: Review article
Source: AGRONOMY JOURNAL; v. 112, n. 6, p. 4550-4557, NOV-DEC 2020.
Web of Science Citations: 0
Abstract

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)

FAPESP's process: 17/20925-0 - Brazilian yield-gap atlas: assessing the potential for sustainable intensification of Brazilian agriculture
Grantee:Fabio Ricardo Marin
Support Opportunities: Regular Research Grants
FAPESP's process: 17/50445-0 - Brazilian yield-gap atlas: assessing the potential for sustainable intensification of Brazilian agriculture
Grantee:Fabio Ricardo Marin
Support Opportunities: Regular Research Grants
FAPESP's process: 18/06396-7 - Quantification and decomposition of yield gap of sugarcane mill
Grantee:Leticia Gonçalves Gasparotto
Support Opportunities: Scholarships in Brazil - Master