Differences in soil enzyme activities, microbial community structure and short-term nitrogen mineralisation resulting from farm management history and organic matter amendments

Stark, Christine H. E.; Condron, Leo M.; O’Callaghan, Maureen; Stewart, Alison; Di, Hong J.

doi:10.1016/j.soilbio.2007.09.025

Cited by 114 publications

(85 citation statements)

References 37 publications

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“…This indicates that differences in POC, PON, and DOC80 may be primarily in the free particulate organic C (FPOC) and free particulate organic N d Mean soil quality indicator value ± standard deviation; values followed by different letters for either the three CRM or three N-rate treatments are significantly different at p < 0.05 (FPON) fractions, which is thought to be younger and more plant derived (Six et al 2002a), suggesting the larger POC and PON in the R treatment reflect greater decomposition of recent added crop residues, which occurs through and is catalyzed by soil microorganisms (Saha et al 2008;Stark et al 2008). In addition, the DOC80 includes a portion of MBC and simple organic compounds (Chen et al 2004), suggesting that some simple organic compounds were released from the returned crop residues during the experimental periods.…”

Section: Discussion Effects Of Crop Residue On Soil Propertiesmentioning

confidence: 99%

“…It is generally recognized that increased organic residue inputs, either from plants or animal manure, will increase MBC size and enzymatic activities (Buchanan and King 1992;Dick 1992;Stark et al 2008) because of increased availability of C substrate that stimulates microbial activity (Nayak et al 2007). In this study, the Rc treatment received extra C derived from organic manure by 58, 77, and 96 g m −2 year −1 for the F270, F360, and F450 treatments, respectively.…”

mentioning

confidence: 93%

“…Soil microorganisms drive decomposition of organic materials (Stark et al 2008), and mineralization of organic matter through a wide range of metabolic processes (Saha et al 2008). These processes depend primarily on the size, activity, and composition of the soil microbial biomass (Böhme et al 2005;Tu et al 2006), suggesting that it is critically important to build diverse soil microbial communities to sustain or improve productivity of the field with crop residues return.…”

Section: Introductionmentioning

confidence: 99%

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Crop residue management and fertilization effects on soil organic matter and associated biological properties

Zhao

Zhang

et al. 2016

Environ Sci Pollut Res

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Xiying, "Crop residue management and fertilization effects on soil organic matter and associated biological properties" (2016 Abstract Returning crop residue may result in nutrient reduction in soil in the first few years. A two-year field experiment was conducted to assess whether this negative effect is alleviated by improved crop residue management (CRM). Nine treatments (3 CRM and 3 N fertilizer rates) were used. The CRM treatments were (1) R0: 100 % of the N using mineral fertilizer with no crop residues return; (2) R: crop residue plus mineral fertilizer as for the R0; and (3) Rc: crop residue plus 83 % of the N using mineral and 17 % manure fertilizer. Each CRM received N fertilizer rates at 270, 360, and 450 kg N ha −1 year −1 . At the end of the experiment, soil NO 3 -N was reduced by 33 % from the R relative to the R0 treatment, while the Rc treatment resulted in a 21 to 44 % increase in occluded particulate organic C and N, and 80°C extracted dissolved organic N, 19 to 32 % increase in microbial biomass C and protease activity, and higher monounsaturated phospholipid fatty acid (PLFA):saturated PLFA ratio from stimulating growth of indigenous bacteria when compared with the R treatment. Principal component analysis showed that the Biolog and PLFA profiles in the three CRM treatments were different from each other. Overall, these properties were not influenced by the used N fertilizer rates. Our results indicated that application of 17 % of the total N using manure in a field with crop residues return was effective for improving potential plant N availability and labile soil organic matter, primarily due to a shift in the dominant microorganisms.

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Section: Discussion Effects Of Crop Residue On Soil Propertiesmentioning

confidence: 99%

mentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

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Crop residue management and fertilization effects on soil organic matter and associated biological properties

Zhao

Zhang

et al. 2016

Environ Sci Pollut Res

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“…A adição de resíduos orgânicos ao solo proporciona aumento não linear na biomassa e na atividade microbiana (Stark et al, 2008), enquanto em solos sem adição de resíduos, há redução no teor de C microbiano (Conceição et al, 2005). O efeito do preparo do solo durante a reforma do canavial pode ter propiciado condições favoráveis ao desenvolvimento microbiano em razão do aumento da aeração e da incorporação de resíduos ao solo, minimizando o efeito do tempo após a última reforma e fazendo com que houvesse semelhança entre os teores de C microbiano nas áreas de um e de seis anos (Figura 4).…”

Section: Discussionunclassified

Estoques de carbono e qualidade da matéria orgânica do solo em áreas cultivadas com cana-de-açúcar

Signor

Zani²,

Paladini³

et al. 2014

Rev. Bras. Ciênc. Solo

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RESUMOA cana-de-açúcar é a principal cultura utilizada na produção de etanol biocombustível no Brasil e sua colheita pode ser feita com ou sem queima das folhas, aumentando ou diminuindo a emissão de gases do efeito estufa e a deposição de C no solo. Por meio deste trabalho, avaliou-se o efeito de sistemas de colheita de cana-de-açúcar (com e sem queima da palha, com um, três e seis anos após a última reforma do canavial) sobre os teores e estoques de C no solo, a qualidade física da matéria orgânica e a imobilização de C na biomassa microbiana do solo. As áreas de colheita sem queima apresentaram maior teor de C na camada superficial e maiores estoques de C, independentemente do tempo após a última reforma. Diferenças na qualidade física da matéria orgânica ocorreram principalmente na fração com tamanho entre 53 e 75 µ µ µ µ µm, na qual a proporção de C foi maior nas áreas sem queima. Na camada de 0-10 cm, o sistema sem queima apresentou maior teor de C microbiano. A colheita sem queima da palha é eficiente em acumular C em formas que possuem alto tempo de residência no solo.Termos de indexação: aquecimento global, cana crua, fracionamento físico, manejo do solo, matéria orgânica do solo.

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“…Additionally, the enzyme activities also correlate with the soil microbial biomass (Jiang et al, 2009). Forest cleaning, cropping and management affect the soil microbial diversity and activity (Degens et al, 2000, Stark et al, 2008. Decrease in microbial activity in intensively managed soil in comparison to well managed pastures has been observed (Riffaldi et al, 2002).…”

Section: Indicators Of Soil Health In Forestry Systemsmentioning

confidence: 99%

Soil health: looking for suitable indicators. What should be considered to assess the effects of use and management on soil health?

Cardoso¹,

Vasconcellos²,

Bini³

et al. 2013

Sci. agric. (Piracicaba, Braz.)

407

220

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Soil Health refers to the ecological equilibrium and the functionality of a soil and its capacity to maintain a well balanced ecosystem with high biodiversity above and below surface, and productivity. To understand and use soil health as a tool for sustainability, physical, chemical, and biological properties must be employed to verify which respond to the soil use and management within a desired timescale. Attributes with a rapid response to natural or anthropogenic actions are considered good indicators of soil health. Among the physical indicators, soil texture, aggregation, moisture, porosity, and bulk density have been used, while among chemical indicators total C and N, mineral nutrients, organic matter, cation exchange capacity, among others are well established. However, most of them generally have a slow response, when compared to the biological ones, such as microbial biomass C and N, biodiversity, soil enzymes, soil respiration, etc., in addition to macro and mesofauna. Thus, a systemic approach based on different kinds of indicators (physical, chemical and biological) in assessing soil health would be safer than using only one kind of attribute. Many human activities have caused desertification, loss of biodiversity, disruption of aggregates, loss of organic matter and nutrients, among others. Today, it is imperious to maintain soil health and productivity with increasing emphasis on reforestation and recuperation of degraded areas through the use of organic amendments, reintroduction of plants, soil fauna and microorganisms. This review focused on an integrative view on indicators of soil health to be used as tools for prediction of sustainability in production systems.

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Differences in soil enzyme activities, microbial community structure and short-term nitrogen mineralisation resulting from farm management history and organic matter amendments

Cited by 114 publications

References 37 publications

Crop residue management and fertilization effects on soil organic matter and associated biological properties

Crop residue management and fertilization effects on soil organic matter and associated biological properties

Estoques de carbono e qualidade da matéria orgânica do solo em áreas cultivadas com cana-de-açúcar

Soil health: looking for suitable indicators. What should be considered to assess the effects of use and management on soil health?

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