Conteúdo de carbono e atributos químicos de Latossolo sob cana-de-açúcar colhida com e sem queima

Correia, Benedito Luiz; Alleoni, Luís Reynaldo Ferracciú

doi:10.1590/s0100-204x2011000800022

Cited by 17 publications

(12 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The same tendency was observed in another study in an Oxisol planted to sugarcane (Correia & Alleoni, 2011). As for potential acidity (H+Al), it was a little lower in the 0.0-0.2 m depth compared to the subsurface layer in Sampling Area 1, and the opposite occurred in Sampling Area 2.…”

Section: Resultssupporting

confidence: 84%

Variability of soil fertility properties in areas planted to sugarcane in the State of Goias, Brazil

Cardoso

Lacerda

Rein

et al. 2014

Rev. Bras. Ciênc. Solo

View full text Add to dashboard Cite

SUMMARYSoil sampling should provide an accurate representation of a given area so that recommendations for amendments of soil acidity, fertilization and soil conservation may be drafted to increase yield and improve the use of inputs. The aim of this study was to evaluate the variability of soil fertility properties of Oxisols in areas planted to sugarcane in the State of Goias, Brazil. Two areas of approximately 8,100 m 2 each were selected, representing two fields of the Goiasa sugarcane mill in Goiatuba. The sugarcane crop had a row spacing of 1.5 m and subsamples were taken from 49 points in the row and 49 between the row with a Dutch auger at depths of 0.0-0.2 and 0.2-0.4 m, for a total of 196 subsamples for each area. The samples were individually subjected to chemical analyses of soil fertility (pH in CaCl 2 , potential acidity, organic matter, P, K, Ca and Mg) and particle size analysis. The number of subsamples required to compose a sample within the acceptable ranges of error of 5, 10, 20 and 40 % of each property were computed from the coefficients of variation and the Student t-value for 95 % confidence. The soil properties under analysis exhibited different variabilities: high (P and K), medium (potential acidity, Ca and Mg) and low (pH, organic matter and clay content). Most of the properties analyzed showed an error of less than 20 % for a group of 20 subsamples, except for P and K, which were capable of showing an error greater than 40 % around the mean. The extreme variability in phosphorus, particularly at the depth of 0.2-0.4 m, attributed to banded application of high rates of P fertilizers at planting, places limitations on assessment of its availability due to the high number of subsamples required for a composite sample.Index terms: Saccharum spp., soil sampling, soil analysis, spatial distribution. RESUMO: VARIABILIDADE DE ATRIBUTOS DE FERTILIDADE DO SOLO EM ÁREAS CULTIVADAS COM CANA-DE-AÇÚCAR NO ESTADO DE GOIÁSA amostragem de solo deve representar adequadamente a área avaliada, visando à elaboração de recomendações de medidas de correção da fertilidade e conservação dos solos, a fim de elevar a produtividade e melhorar o aproveitamento de insumos. O objetivo deste trabalho foi avaliar a variabilidade de atributos de fertilidade de Latossolos em áreas de renovação de cana-de-açúcar no Estado de Goiás. Foram selecionadas duas áreas de aproximadamente 8.100 m 2 na usina Goiasa, município de Goiatuba, consideradas representativas de dois talhões cultivados com cana-de-açúcar, com espaçamento entrelinhas de 1,5 m. Em cada uma das áreas selecionadas, foi realizada amostragem do solo em malha, nas linhas de plantio e nas entrelinhas, com trado holandês. Coletaram-se amostras simples (subamostras) em 49 pontos amostrais nas linhas e 49 nas entrelinhas, nas profundidades de 0,0-0,2 e 0,2-0,4 m, totalizando 196 amostras simples em cada área de estudo, que foram analisadas individualmente. As amostras foram submetidas a análises químicas de fertilidade do solo (pH em CaCl 2 , acidez potencial, mat...

show abstract

Section: Resultssupporting

confidence: 84%

Variability of soil fertility properties in areas planted to sugarcane in the State of Goias, Brazil

Cardoso

Lacerda

Rein

et al. 2014

Rev. Bras. Ciênc. Solo

View full text Add to dashboard Cite

show abstract

“…A greater availability of P in areas where residues were removed (by burning) instead of retained on the soil, especially in the surface layer, was verified by Correia and Alleoni (2011), Thorburn et al (2012) and Torres et al (2013). The result was related to the formation of calcium phosphate, present in the ashes from the residue deposited on soil surface (BALL-COELHO et al, 1993).…”

Section: Discussionmentioning

confidence: 83%

Carbon fractions and soil fertility affected by tillage and sugarcane residue management an Xanthic Udult

Lopes

Assunção

Oliveira

et al. 2017

SCA

View full text Add to dashboard Cite

The gradual change in management practices in sugarcane (Saccharum spp.) production from burning straw to a green harvesting system, as well as the use of minimum soil tillage during field renovation, may affect soil fertility and soil organic matter (SOM) contents. The objectives of this work were to investigate the influence of sugar cane production systems on: (1) soil fertility parameters; (2) on physical carbon fractions; (3) and on humic substance fractions, in a long-term experiment, comparing two soil tillage and two residue management systems an Xanthic Udult, in the coastal tableland region of Espírito Santo State, Brazil. The treatments consisted of plots (conventional tillage (CT) or minimum tillage (MT)) and subplots (residue burned or unburned at harvesting), with five replicates The highest values of Ca 2+ + Mg 2+ and total organic carbon (TOC) were observed in the MT system in all soil layers, while high values of K + were observed in the 0.1-0.2 m layer. The CT associated with the burned residue management negatively influenced the TOC values, especially in the 0.1-0.2 and 0.2-0.4 m layers. The carbon in the humin fraction and organic matter associated with minerals were significantly different among the tillage systems; the MT showed higher values than the CT. However, there were no significant differences between the sugarcane residue management treatments. Overall, fractioning the SOM allowed for a better understanding of tillage and residue management systems effects on the soil properties. Key words: Saccharum spp. Soil tillage systems. Residue retention. ResumoA mudança gradual nas práticas de manejo da cana de açúcar (Saccharum spp.) de colheita com queima de palha para o sistema de colheita sem queima, bem como o uso de preparo mínimo do solo durante a renovação do canavial, podem afetar a fertilidade do solo e o conteúdo de matéria orgânica do solo (MOS). Os objetivos específicos foram investigar a influência de sistemas de produção de cana-deaçúcar sobre: (1) os parâmetros de fertilidade do solo; (2) sobre as frações físicas do carbono; (3) e em frações de substâncias húmicas, em um experimento de longa duração, comparando dois tipos de preparo do solo e dois sistemas de manejo da palhada em Argissolo Amarelo, na região tabuleiros costeiros do Espírito Santo, Brasil. Os tratamentos consistiram de parcelas (preparo convencional (PC)

show abstract

“…In Cambissolo (Inceptsol) areas, long-term sugarcane cropping without straw burning produces 78% higher TOC in the 0-20 cm soil layer and 48% higher carbon in the 20-40 cm layer than in areas managed with pre-harvest straw burning [50]. In sugarcane managed with pre-harvest straw burning, Correia and Alleoni [25] found higher TOC (22.7 g·kg −1 at the 0-5 cm depth and 20.8 g·kg −1 at the 5-10 cm depth), probably because the area of the present study exhibited higher sand content. Comparing sugarcane crops managed with straw burning for 55 years with non-burned crop areas, Canellas et al [50] found a 40% decrease in TOC stocks in top soil and 35% decrease in the subsurface layer.…”

Section: Impacts Of Hawaiian Sugarcane Practices Compared To Other Sumentioning

confidence: 99%

“…Furthermore, soil organic matter (SOM) is involved in the maintenance of soil quality, sustainability of natural and agricultural systems and the natural balance of greenhouse gases [23]. For example, pre-harvest straw burning reduces SOM [24,25], thereby affecting the chemical, physical, and biological features of soil. Although SOM represents only a small parcel of the total mass of mineral soils, it is essential for many chemical, physical and biological processes of terrestrial ecosystems [26,27].…”

Section: Introductionmentioning

confidence: 99%

Soil Carbon and Nitrogen Stocks of Different Hawaiian Sugarcane Cultivars

et al. 2015

View full text Add to dashboard Cite

Abstracts: Sugarcane has been widely used as a biofuel crop due to its high biological productivity, ease of conversion to ethanol, and its relatively high potential for greenhouse gas reduction and lower environmental impacts relative to other derived biofuels from traditional agronomic crops. In this investigation, we studied four sugarcane cultivars (H-65-7052, H-78-3567, H-86-3792 and H-87-4319) grown on a Hawaiian commercial sugarcane plantation to determine their ability to store and accumulate soil carbon (C) and nitrogen (N) across a 24-month growth cycle on contrasting soil types. The main study objective establish baseline parameters for biofuel production life cycle analyses; sub-objectives included (1) determining which of four main sugarcane cultivars sequestered the most soil C and (2) assessing how soil C sequestration varies among two common Hawaiian soil series (Pulehu-sandy clay loam and Molokai-clay). Soil samples were collected at 20 cm increments to depths of up to 120 cm using hand augers at the three main growth stages (tillering, grand growth, and maturity) from two experimental plots at to observe total carbon (TC), total nitrogen (TN), dissolved organic carbon (DOC) and nitrates (NO and H-87-4319 (20 kg·m −2 ) appeared to produce more accumulated carbon in both soil types.

show abstract

Conteúdo de carbono e atributos químicos de Latossolo sob cana-de-açúcar colhida com e sem queima

Cited by 17 publications

References 13 publications

Variability of soil fertility properties in areas planted to sugarcane in the State of Goias, Brazil

Variability of soil fertility properties in areas planted to sugarcane in the State of Goias, Brazil

Carbon fractions and soil fertility affected by tillage and sugarcane residue management an Xanthic Udult

Soil Carbon and Nitrogen Stocks of Different Hawaiian Sugarcane Cultivars

Contact Info

Product

Resources

About