Changes in Soil Pest Populations Caused by Sugarcane Straw Removal in Brazil

Castro, Sérgio Gustavo Quassi de; Dinardo-Miranda, Leila Lucí; Fracasso, Juliano Vilela; Bordonal, Ricardo O.; Menandro, Lauren Maine Santos; Franco, Henrique Coutinho Junqueira; Carvalho, João Luís Nunes

doi:10.1007/s12155-019-10019-4

Cited by 14 publications

(9 citation statements)

References 39 publications

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“…Keeping these materials on the soil contributes to mineral, organic matter, and humidity factors [32]. In contrast, problems related to higher weed and disease infestations, as well as greenhouse gas emissions caused by the decomposition of organic matter, require alternative management of the agricultural straw [33][34][35][36][37][38]. By applying a biorefinery approach, such by-products could be transformed into raw material for the extraction of several bioactive compounds.…”

Section: Glycine Max: More Than Beansmentioning

confidence: 99%

Metabolomics as a Tool to Study Underused Soy Parts: In Search of Bioactive Compounds

Bragagnolo

Funari

Ibáñez

2021

Foods

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The valorization of agri-food by-products is essential from both economic and sustainability perspectives. The large quantity of such materials causes problems for the environment; however, they can also generate new valuable ingredients and products which promote beneficial effects on human health. It is estimated that soybean production, the major oilseed crop worldwide, will leave about 597 million metric tons of branches, leaves, pods, and roots on the ground post-harvesting in 2020/21. An alternative for the use of soy-related by-products arises from the several bioactive compounds found in this plant. Metabolomics studies have already identified isoflavonoids, saponins, and organic and fatty acids, among other metabolites, in all soy organs. The present review aims to show the application of metabolomics for identifying high-added-value compounds in underused parts of the soy plant, listing the main bioactive metabolites identified up to now, as well as the factors affecting their production.

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Section: Glycine Max: More Than Beansmentioning

confidence: 99%

Metabolomics as a Tool to Study Underused Soy Parts: In Search of Bioactive Compounds

Bragagnolo

Funari

Ibáñez

2021

Foods

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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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“…Thus, straw mulch may affect sugarcane root systems, as reported by Alvarez et al [17], who verified higher root accumulation near the soil surface, and Cury et al [18], who found a smaller soil volume explored by the root system in areas under a mechanical harvesting system and no straw removal. In addition, straw mulch may induce potential deleterious impacts on the root system through the release of allelochemical substances from the anaerobic decomposition of these residues [19], hinder fertilizer application [20], increase proliferation of pest populations [21,22], and reduce soil warming [23]. These soil parameters may delay initial plant regrowth [24], affect root growth, and reduce crop yield [25].…”

Section: Introductionmentioning

confidence: 99%

Straw Removal Effects on Sugarcane Root System and Stalk Yield

et al. 2020

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The sugarcane (Saccharum spp. L.) mechanical harvesting system leaves a large amount of straw mulch on the soil surface. The straw mulch may affect soil conditions, root regrowth, and sugarcane yield. Thus, this study assessed the response of sugarcane root system growth and stalk yield to different rates of straw removal. An experiment was conducted in a Rhodic Kandiudox with sand clay loam texture to test the impact of four rates of straw removal: no removal (18.9 Mg ha−1 of dry mass); moderate removal (8.7 Mg ha−1); high removal (4.2 Mg ha−1) and total removal on sugarcane root system and stalk yield. Higher concentrations of roots (60%) were found in the first 40 cm of soil. Moderate straw removal resulted in higher root mass (3.6 Mg ha−1) and stalk production (23 Mg ha−1 of dry mass). However, no straw removal reduced root mass by <40% (2099 kg ha−1) and reduced stalk yield by >20% (105 Mg ha−1). Through regression analysis, it was estimated that retaining between 8.5 and 13 Mg ha−1 of straw resulted in the highest root mass and stalk yield. Managing straw removal to retain a moderate amount enables producers to sustain suitable soil conditions for sugarcane root growth and stalk production while providing straw for industrial use.

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Changes in Soil Pest Populations Caused by Sugarcane Straw Removal in Brazil

Cited by 14 publications

References 39 publications

Metabolomics as a Tool to Study Underused Soy Parts: In Search of Bioactive Compounds

Metabolomics as a Tool to Study Underused Soy Parts: In Search of Bioactive Compounds

Improving phosphorus sustainability of sugarcane production in Brazil

Straw Removal Effects on Sugarcane Root System and Stalk Yield

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