Sugarcane straw removal effects on plant growth and stalk yield

Lisboa, Izaías Pinheiro; Cherubin, Maurício Roberto; Lima, Renato Paiva de; Cerri, Carlos Clemente; Satiro, Lucas Santos; Wienhold, Brian J.; Schmer, Marty R.; Jin, Virginia L.; Cerri, Carlos Eduardo Pellegrino

doi:10.1016/j.indcrop.2017.11.049

Cited by 62 publications

(67 citation statements)

References 24 publications

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“…Overall, effects of straw cover on sugarcane tiller development and final plant population are unclear and variable depending primarily on the amount of straw and ratoon cycle (Aquino et al, 2017; Lisboa et al, 2018). In Bandeirantes, Paraná (i.e., southern Brazil), final plant population was significantly affected by straw amounts ranging from 0 to 20 Mg ha −1 in the first ratoon, but there was no verifiable negative effect in the second ratoon (Aquino et al, 2017).…”

Section: Resultsmentioning

confidence: 99%

“…Phytomass accumulation during each ratoon was fitted using sigmoidal models as a function of DAH (Fig. 4), as previously reported in the literature (Leite et al, 2016; Mariano et al, 2016; Lisboa et al, 2018). Overall, phytomass yield for each ratoon cycle and season occurred in three phases.…”

Section: Resultsmentioning

confidence: 99%

“…Comparisons between the first and second ratoons at both sites show that phytomass yield at Bom Retiro was ∼37 and 19% lower for all treatments during dry and wet seasons, respectively, whereas at Univalem, they were ∼20 and 30% lower, respectively. Decreases in crop yield with successive ratoons are well documented for sugarcane (Singh et al, 2012; Lisboa et al, 2018). Each ratoon requires at least three machinery operations: fertilization, weed control, and harvesting.…”

Section: Resultsmentioning

confidence: 99%

“…Even though raking has been widely adopted within southeastern Brazil, the agronomic benefits of this management practice remain unclear (Carvalho et al, 2017). In a recent study conducted within the central‐southern sugarcane producer region, Lisboa et al (2018) reported small plant growth responses across the ratoon cycles between extreme straw‐blanket management treatments (total vs. no straw removal). Thus, there are still uncertainties about the best management practices for postharvest residue.…”

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confidence: 99%

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Sugarcane Straw Blanket Management Effects on Plant Growth, Development, and Yield in Southeastern Brazil

et al. 2019

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In Brazilian sugarcane (Saccharum spp.) production systems, the practice of moving harvesting residue from row to inter‐row positions (i.e., raking) has increased in response to producer concerns over the potential negative effects of sugarcane straw on crop establishment and stalk yield. Despite increasing adoption among sugarcane farmers, the impacts of straw raking practices on plant growth and yield remain unclear. A 2‐yr experiment that included both dry and wet seasons was conducted at two sites in southeastern Brazil to evaluate straw management strategy effects on plant tillering, phytomass accumulation, plant nutritional status, and stalk yield. The experiments were established at the Bom Retiro mill and the Univalem mill. Experimental treatments included raking straw to inter‐rows (raked), total straw removal (bare soil), and no straw removal (straw cover). Raked and bare soil treatments improved plant tillering but did not influence final plant population. Straw management had a slight effect on phytomass accumulation. Reduction of phytomass yield was observed from the first to the second ratoon during both seasons at both sites. At Bom Retiro, phytomass yield decreased 37% for stands established during the dry season and 19% for stands established during the wet season. At Univalem, phytomass yield decreased 20% for stands established during the dry season and 30% for stands established during the wet season. Retaining straw in the field (regardless of treatment) increased leaf tissue P content but not stalk yield. Raking straw from row to inter‐row positions at these locations in southeastern Brazil had no benefit on sugarcane yield but may result in soil compaction and higher production costs over time.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

mentioning

confidence: 99%

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Sugarcane Straw Blanket Management Effects on Plant Growth, Development, and Yield in Southeastern Brazil

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“…However, sugarcane straw is also a source of biofuel to provide electricity for the sugarcane mills and provides an economic return to the grower when removed from the field. Retention of too much straw on the soil surface also has some disadvantages: it hinders effective mechanical cultivation (Magalhães et al, ) and fertilizer incorporation (Bianchini et al, ), increases the risk of fire during very dry periods (Rossetto, Cantarella, Dias, Landell, & Vitti, ), reduces initial crop tillering (Lisboa et al, ), and encourages pest and disease infestations (Castro et al, ). A sustainable option is to retain 6–8 Mg/ha of the straw residue in the field to provide both economic and environmental benefit and lessen any agronomic disadvantage (Carvalho et al, ).…”

Section: R Options For the Sustainable Management Of P In Sugarcanementioning

confidence: 99%

Improving phosphorus sustainability of sugarcane production in Brazil

et al. 2019

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Phosphorus (P) use in global food and bioenergy production needs to become more efficient and sustainable to reduce environmental impacts and conserve a finite and critical resource (Carpenter & Bennett, Environmental Research Letters, 2011, 6, 014009; Springmann et al., Nature, 2018, 562, 519). Sugarcane is one crop with a large P footprint because production is centered on P‐fixing soils with low P availability (Roy et al., Nature Plants, 2016, 2, 16043; Withers et al., Scientific Reports, 2018, 8, 2537). As global demand for processed sugar and bioethanol continues to increase, we advocate that improving P efficiency could become a key sustainability goal for the sugarcane industry. Here, we applied the 5R global P stewardship framework (Withers et al., Ambio, 2015, 44, 193) to identify more sustainable options to manage P in Brazilian sugarcane production. We show that current inputs of P fertilizer to the current crop area could be reduced by over 305 Gg, or 63%, over the next three decades by reducing unnecessary P fertilizer use, better utilization of recyclable bioresources and redesigning recommendation systems. Adoption of these 5R options would save the sugarcane industry in Brazil 528 US$ million and help safeguard global food and energy security.

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Multisite response of sugarcane to nitrogen rates and split application under Brazilian field conditions

et al. 2020

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Brazil is the world's largest sugarcane (Saccharum spp.) producer, with 8.5 million ha and 643 million t of stalks produced annually. Sugarcane production has a significant impact in the Brazilian economy due to the large production of sugar, ethanol, and energy. The low N use efficiency is a challenge for sugarcane production and may be due to a lack of synchrony between fertilizer application and maximum N demand. This study tested the hypothesis that split N application can improve sugarcane yield by matching fertilizer application and crop demand. We conducted 25 green sugarcane field trials in south‐central Brazil (15 in the first ratoon stage [Year 1] and 10 in the second ratoon stage [Year 2]) divided into three harvest periods: autumn, winter, and spring. We adopted a factorial design at the autumn and winter sites, evaluating N rates and methods of application (total or split), and a complete block design in spring, evaluating N rates. Measurements included stalk yield, total recoverable sugars, and sugar yield. Nitrogen responsiveness was higher in sugarcane harvested in autumn compared with winter or spring. Split N application (i.e., applying half of the N soon after harvest and half at the beginning of the rainy season) showed the potential to increase yields by 3–7 Mg ha−1 in autumn but not in winter. Among the seven responsive sites, the yield gain was 9–10.5 Mg ha−1, and the average yield at 0.8 kg N Mg−1 was statistically similar to those at 1.0, 1.2, and 1.4 kg N Mg−1.

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Sugarcane straw removal effects on plant growth and stalk yield

Cited by 62 publications

References 24 publications

Sugarcane Straw Blanket Management Effects on Plant Growth, Development, and Yield in Southeastern Brazil

Sugarcane Straw Blanket Management Effects on Plant Growth, Development, and Yield in Southeastern Brazil

Improving phosphorus sustainability of sugarcane production in Brazil

Multisite response of sugarcane to nitrogen rates and split application under Brazilian field conditions

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