Variation in the sugar yield in response to drying-off of sugarcane before harvest and the occurrence of low air temperatures

Araújo, Renato; Alves, José Milton; Casaroli, Derblai; Evangelista, Adão Wagner Pêgo

doi:10.1590/1678-4499.170

Cited by 18 publications

(6 citation statements)

References 12 publications

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“…For the soil with low SWHC with harvest in October and November in Mocambinho (Figure ), near to Jaíba, the drying‐off days ranged from 22 to 33, considering the percentiles for 25 and 75%. In an experiment conducted with 15‐month plant cane harvested in mid‐September in an Oxisol of medium texture, near Pirenópolis, GO, Araújo et al () found 30 days as the best drying‐off period for sugarcane harvest, which is similar to the results obtained for the same month of harvesting in the present study, between 21 and 31 days for harvests between September and October in Pirenópolis (Figure ). Although the experimental results provide valuable information for model assessment, they normally consider few growing seasons, harvest periods and agro‐climatic conditions, being limited by them.…”

Section: Resultssupporting

confidence: 89%

“…Recommendations about drying‐off in irrigated sugarcane fields are still scarce in Brazil, with the few studies that exist presenting contrasting results (Teixeira ; Vieira et al ; Barbosa, 2015; Araújo et al ). Therefore, there is still controversy regarding the drying‐off strategy before harvest for irrigated sugarcane, since most of the experiments are restricted to specific locations and years.…”

Section: Introductionmentioning

confidence: 99%

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Drying‐Off Periods for Irrigated Sugarcane to Maximize Sucrose Yields Under Brazilian Conditions

Dias

Sentelhas

2018

Irrigation and Drainage

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The natural ripening process in sugarcane plants is influenced by several factors, including water stress. In irrigated sugarcane areas, water application is often withheld prior to harvest, a process called drying-off, which is done to increase the sucrose content and yield, and to provide suitable conditions of soil moisture for mechanical harvesting. Based on this, the objective of this study was to determine the drying-off periods for irrigated sugarcane in different Brazilian regions to maximize sucrose yields. The APSIM-Sugarcane model was used to simulate 12-month plant cane in 12 Brazilian sites for a long-term period. Three soil types with different water-holding capacities (low, medium and high) were adopted. The drying-off periods were determined based on the relationship between relative stalk dry mass yield (dried-off and fully irrigated) and days in which water was withheld prior to harvest, considering yield reduction up to 4% as a target. As expected, the drying-off periods varied considerably according to locations, soil types and harvest dates, with the median ranging from 15 to 115 days. In general, more drying-off days are required at the beginning and end of the harvesting season, when higher interannual variability is also observed. The results obtained are useful for planning and decision-making in irrigated sugarcane areas, since they allow evaluation of the best strategy to maximize sucrose yield. RÉSUMÉLe processus naturel de maturation de la canne à sucre est influencé par plusieurs facteurs, dont le stress hydrique. Dans les zones de production de canne à sucre irriguée, l'application de l'eau est normalement suspendue avant la récolte, un processus nommée séchage, lequel est réalisé pour augmenter le contenu et rendement de saccharose, et pour assurer des conditions adéquates d'humidité du sol pour la récolte mécanique. Basée sur cela, l'objectif de cette étude a été de déterminer les périodes de séchage pour des cannes à sucre irriguées dans différentes régions du Brésil pour maximiser le rendement de saccharose. Le model APSIM-Sugarcane a été utilisé pour simuler, à long terme, la canne de 12 mois dans 12 sites brésiliens. Trois types de sol avec différentes capacités de rétention (faible, moyenne et forte) ont été adoptés. Les périodes de séchage ont été déterminées par la relation entre la productivité relative (sèche et irriguée) et le nombre de jours pendant lesquels l'eau a été suspendue avant la récolte, compte tenu de l'objectif de réduction de 4% de la productivité. Comme prévu, les périodes de séchage ont varié considérablement selon les localités, types de sol et dates de récolte, dont la médiane a varié de 15 à 115 jours. En général, plus de jours de séchages sont nécessaires au commencement et à la fin de saison de récolte, quand une haute variabilité interannuelle est observée. Les résultats obtenus sont utiles pour les processus de planification et de prise de décision dans les zones de canne à sucre irriguée, puisque cela permet d'évaluer la meilleure stratégie pour m...

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Section: Resultssupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Drying‐Off Periods for Irrigated Sugarcane to Maximize Sucrose Yields Under Brazilian Conditions

Dias

Sentelhas

2018

Irrigation and Drainage

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“…Precipitation determines the amount of sucrose accumulated at the moment of harvesting, but different soil types can store water in different proportions, what may affect the sugarcane ripening (Cardozo et al 2015). On the other hand, air temperatures and water deficits are effective ripening agents, because they reduce the moisture of the sugarcane stalk (Araújo et al 2016). For van Heerden (2014), there is an inverse relation between the sucrose concentrations in cane and the minimum mean air temperature.…”

Section: Abstract Resumomentioning

confidence: 99%

Effects of meteorological variables on sugarcane ripening in the Cauca river valley, Colombia

Unigarro¹,

Trujillo

2020

Pesqui. Agropecu. Trop.

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Sugarcane ripening is conditioned by the interaction between biological factors of the crop and climate. This study aimed to evaluate the effects of some meteorological variables on the sucrose content, during the ripening period, in the Cauca river valley (Colombia). The evaluations were conducted at seven locations, during four periods, being each one a three-month period. The meteorological variables of maximum, mean and minimum air temperature, diurnal vapor pressure deficit and precipitation were evaluated with respect to the sucrose variable (% cane). The results showed that a low precipitation and a high vapor pressure deficit increased the sucrose content in the stems. High minimum temperatures during the maturation stage decreased the sucrose levels, although their effect was less noticeable than previously mentioned. The meteorological conditions in the different localities caused substantial differences in the sucrose concentration of the stems, especially during the beginning of the maturation phase. However, these differences were reduced by the age of the crop and by the periods of rainfall or drought occurrence.

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“…This is due to the lower cost of lands when compared to traditional areas of occupation of the crop (e.g., São Paulo), besides the suitable terrain, infrastructure, and average distance to the main consumer markets (Silva & Miziara, 2011). On the other hand, Goiás presents disadvantages compared to the state of São Paulo such as a more significant water deficit (Marin & Nassif, 2013;Araújo et al, 2016), and difficulty in the adoption of varieties adapted to the edaphoclimatic conditions of the region (Campos et al, 2014a(Campos et al, , 2014b.…”

Section: Introductionmentioning

confidence: 99%

Estimated productivity of sugarcane through the Agro-Ecological Zone method

et al. 2021

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The estimate of the potential sugarcane productivity through agroclimatic models aids in the agricultural planning of the crops and the quantification of the yield for a given region. For these estimated values to be considered robust there is a need for validating the performance of such models in different areas and agricultural varieties. Hence, the aim of this study was to validate the Agro-Ecological Zone (AEZ) method with fifteen sugarcane varieties in the region of the Vale do São Patrício, state of Goiás, Brazil. We evaluated the data referring to the cane-plant (one-and-a-half-year sugarcane), as well as the first and second sugarcane ratoons (both with one-year cycles) in an irrigated and dry farming system. The productivities obtained in dry farming were corrected due to the occurrence of a water deficit in the crop. The results indicated that the AEZ method presented productivity estimates more satisfactory for the one-year cultivation cycles (ratoon cycles) for all varieties studied, with the model adjusting best to the CTC15 variety (RMSE = 8.70 t ha-1 ; MAE = 6.05 t ha-1 ; d = 0.99).

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Variation in the sugar yield in response to drying-off of sugarcane before harvest and the occurrence of low air temperatures

Cited by 18 publications

References 12 publications

Drying‐Off Periods for Irrigated Sugarcane to Maximize Sucrose Yields Under Brazilian Conditions

Drying‐Off Periods for Irrigated Sugarcane to Maximize Sucrose Yields Under Brazilian Conditions

Effects of meteorological variables on sugarcane ripening in the Cauca river valley, Colombia

Estimated productivity of sugarcane through the Agro-Ecological Zone method

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