Response of soil microbial biomass, urease and xylanase within particle size fractions to long-term soil management

Kandeler, Ellen; Stemmer, Michael; Klimanek, Eva-Maria

doi:10.1016/s0038-0717(98)00115-1

Cited by 304 publications

(150 citation statements)

References 34 publications

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“…Similar to this study, other studies have reported increases in enzyme activities after organic fertilizer applications (Böhme et al, 2005;Giacometti et al, 2014;Islam et al, 2011;Kandeler et al, 1999;Liang et al, 2014). A meta-analysis based on 1160 cases around the world showed that there were positive linear relationships between βG, NAG, and LAP activities and SOC contents (Sinsabaugh et al, 2014).…”

Section: Effects Of Fertilizer Practices On Soil Absolute Enzyme Actisupporting

confidence: 87%

Responses of absolute and specific soil enzyme activities to long term additions of organic and mineral fertilizer

Zhang

Dong

Dai

et al. 2015

Science of The Total Environment

164

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• Acid phosphatase activity was negatively correlated with soil pH and P content.• βG, NAG, and LAP activities were positively correlated with SOC and Total N contents.• The four enzyme activities were significantly higher under manure than NPK fertilizer.• Enzyme activities were positively correlated with actinomycete and G + bacterium.• We recommend reducing P fertilizer application rates to subtropical paddy soils. G R A P H I C A L A B S T R A C Ta b s t r a c t a r t i c l e i n f o Long-term phosphorus (P) and nitrogen (N) applications may seriously affect soil microbial activity. A long-term field fertilizer application trial was established on reddish paddy soils in the subtropical region of southern China in 1998. We assessed the effects of swine manure and seven different rates or ratios of NPK fertilizer treatments on (1) the absolute and specific enzyme activities per unit of soil organic carbon (SOC) or microbial biomass carbon (MBC) involved in C, N, and P transformations and (2) their relationships with soil environmental factors and soil microbial community structures. The results showed that manure applications led to increases in the absolute and specific activities of soil β-1,4-glucosidase(βG), β-1,4-N-acetylglucosaminidase (NAG), and leucine aminopeptidase (LAP). The absolute and specific acid phosphatase (AP) activities decreased as mineral P fertilizer application rates and ratios increased. Redundancy analysis (RDA) showed that there were negative correlations between absolute and specific AP activities, pH, and total P contents, while there were positive correlations between soil absolute and specific βG, NAG, and LAP enzyme activities, and SOC and total N contents. RDA showed that the contents of actinomycete and Gram-positive bacterium PLFA biomarkers are more closely related to the absolute and specific enzyme activities than the other PLFA biomarkers (P b 0.01). Our results suggest that both the absolute and specific enzyme activities could be used as sensitive soil quality indicators that provide useful linkages with the microbial community structures and environmental factors. To maintain microbial activity and to minimize environmental impacts, P should be applied as a combination of inorganic and organic forms, and total P fertilizer application rates to subtropical paddy soils should not exceed 44 kg P ha −1 year −1 .

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Section: Effects Of Fertilizer Practices On Soil Absolute Enzyme Actisupporting

confidence: 87%

Responses of absolute and specific soil enzyme activities to long term additions of organic and mineral fertilizer

Zhang

Dong

Dai

et al. 2015

Science of The Total Environment

164

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“…This agrees with other studies that likewise concluded that macroaggregate structures provide habitat for microbial biomass and enzyme activity [23,24] . The varying predominance of the individual enzymes in the different aggregate size fractions can be discussed on the basis of the location of soil microorganisms and their substrates [25] . The activity of βG, which is produced and released to a great extent by both bacteria and fungi [12] was mainly found in the largest aggregate size classes (Fig.…”

Section: Resultsmentioning

confidence: 99%

Distribution of β-Glucosidase Activity within Aggregates of a Soil Amended with Organic Fertilizers

Hojati¹,

Nourbakhsh²

2009

American J. of Agricultural and Biological Sciences

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Problem statement: Distribution pattern of enzyme activities in soil aggregate size classes as affected by organic amendments is not well understood. Approach: A study was conducted to evaluate the effects of repeated annual application of Cow Manure (CM), Sewage Sludge (SS) and Municipal Solid Waste Compost (MSW) on the distribution of β-Glucosidase (βG) activity within aggregates of a soil. Soil samples were collected from 0-15 cm of a soil which, had been treated annually from 1999-2006 at 4 application rates with three replications. A control (with no application) was also run. Soil organic C content and βG activity were measured in 5 aggregate size fractions. Results: Results illustrated that application of the amendments decreased the proportion of microaggregates (<0.25 mm). The proportion ranged from 64% in control to 35% in MSW. In contrast, the proportion of macroaggregates (>0.25 mm diameter) enhanced from 35% in control to 65% in MSW. Application of organic amendments modified the distribution of Soil Organic C (SOC) content and βG activity. Distribution of SOC in macroaggregate classes was not identical in CM, SS and MSW treatments. The distribution pattern of βG activities in aggregate size classes was dissimilar to those of SOC contents. In general, an increasing trend was observed in βG activity as the aggregate sizes increased. The highest level of βG activity was observed in aggregate size classes of >2 mm of all applied soils. Among the solid waste treatments, CM induced greater βG activity in macroaggregates. For all aggregate size classes, the lowest level of βG activity was observed in control. Conclusion/Recommendations: To conclude, organic fertilization increased the proportion of macroaggregates to microaggregates. The highest activities of βG and SOC contents were observed in macroaggregates and in soils received the highest rates of organic fertilizer applications.

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“…Organic carbon (OC) was determined by K2Cr2O7 oxidation (Walkley and Black, 1934) while total N was estimated using the Kjeldahl method (Duchaufour, 1970). Concentrations of NH4 + -N and NO3 --N were determined by UV-visible spectrophotometry (spectrophotometer UVmini-1240, Shimadzu, Kyoto, Japan) in a 2 M KCl extract (1:10 w/v) (Keeney and Nelson, 1982;Sempere et al, 1993;Kandeler et al, 1999). Available P was measured using the sodium-bicarbonate extraction-based Olsen-P method (Burt, 2004) while the bio-available minor elements (Zn, Fe, Cu, and Mn) were estimated using the diethylenetriamine pentaacetic acid (DTPA) method (Lindsay and Norvell, 1978).…”

Section: Soil Sample Collection and Analysesmentioning

confidence: 99%

Soil fertility status and nutrients provided to spring barley (Hordeum distichon L.) by pig slurry

Gómez-Garrido

Martínez-Martínez

Cano

et al. 2014

Chilean J. Agric. Res.

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Nutrient recycling using pig slurry is a common agricultural practice to manage the ever-increasing amounts of wastes from the pig industry. This study was conducted in the southeast of Spain to quantify the enrichments in major (N, P, K, Mg) and minor (Zn, Fe, Cu, and Mn) nutrients in soils amended with D1-170 kg N ha -1 (European Union legislated dose) or D2-340 kg N ha -1 , and understand the influence of pig slurry on yield and nutrient uptake in two crop seasons of spring barley (Hordeum distichon L.) Compared to control, D2 increased NO3 --N by 11.4X to 109 mg kg -1 , Olsen-P by 6.9X to 423 mg kg -1 , exchange K (2.5X to 1.6 cmol+ kg -1 ), Mg (1.7X to 1.8 cmol+ kg -1 ), diethylene-triamine pentaacetic acid (DTPA)-Zn (94X to 18.2 mg kg -1 ), and Fe (2X to 11.3 mg kg -1 ). Available NO3 --N, Olsen-P, and DTPA-Zn have the best correlations with crop yield and nutrient uptake. These results indicate that the assessment of soil fertility status at 1-mo after pig slurry addition provides a good indicator for potential yield and uptake of barley. However, it is suggested that leachates should be monitored to effectively manage potential releases of nitrate and phosphate into the environment.

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Response of soil microbial biomass, urease and xylanase within particle size fractions to long-term soil management

Cited by 304 publications

References 34 publications

Responses of absolute and specific soil enzyme activities to long term additions of organic and mineral fertilizer

Responses of absolute and specific soil enzyme activities to long term additions of organic and mineral fertilizer

Distribution of β-Glucosidase Activity within Aggregates of a Soil Amended with Organic Fertilizers

Soil fertility status and nutrients provided to spring barley (Hordeum distichon L.) by pig slurry

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