Community level functional diversity and enzyme activities in paddy soils under different long-term fertilizer management practices

Islam, Md. Rashedul; Chauhan, Puneet Singh; Kim, Yoohak; Kim, Myung-Sook; Sa, Tongmin

doi:10.1007/s00374-010-0524-2

Cited by 99 publications

(56 citation statements)

References 27 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

171

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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

171

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“…Then, 120 µL of the sample suspension was inoculated into each well of the Biolog EcoPlates TM and incubated at 26°C. The utilisation rate was indicated by the reduction of tetrazolium violet, a redox indicator dye that changes from colourless to purple (Islam et al, 2011;Stefanowicz, 2006). The data were recorded at 490 nm every 24 h for up to 216 h. Next, the absorbance readings of the individual wells of the EcoPlates TM while under incubation were used to determine the average well colour development (AWCD).…”

Section: Methodsmentioning

confidence: 99%

Community-level physiological profiles of microorganisms inhabiting soil contaminated with heavy metals

Kuźniar¹,

Banach²,

Stępniewska³

et al. 2018

International Agrophysics

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A b s t r a c t. The aim of the study was to assess the differences in the bacterial community physiological profiles in soils contaminated with heavy metals versus soils without metal contaminations. The study's contaminated soil originated from the surrounding area of the Szopienice non-ferrous metal smelter (Silesia Region, Poland). The control was soil unexposed to heavy metals. Metal concentration was appraised by flame atomic absorption spectrometry, whereas the the community-level physiological profile was determined with the Biolog EcoPlates TM system. The soil microbiological activity in both sites was also assessed via dehydrogenase activity. The mean concentrations of metals (Cd and Zn) in contaminated soil samples were in a range from 147.27 to 12265.42 mg kg -1 , and the heavy metal contamination brought about a situation where dehydrogenase activity inhibition was observed mostly in the soil surface layers. Our results demonstrated that there is diversity in the physiological profiles of microorganisms inhabiting contaminated and colntrol soils; therefore, for assessment purposes, these were treated as two clusters. Cluster I included colntrol soil samples in which microbial communities utilised most of the available substrates. Cluster II incorporated contaminated soil samples in which a smaller number of the tested substrates was utilised by the contained microorganisms. The physiological profiles of microorganisms inhabiting the contaminated and the colntrol soils are distinctly different.K e y w o r d s: Biolog ECO plates, community-level physiological profiles, heavy metals

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“…Increasing evidence indicates that an appropriate community population, abundant diversity, and high microbial activity, are all important factors for maintaining the sustainability and productivity of soil ecosystems [26,27]. In addition, a long-term field experiment revealed that the level of SMC functional diversity was significantly enhanced in plots treated with both chemical fertilizer and compost, compared with that in plots treated with only chemical fertilizer or in untreated control plots [28].…”

Section: Introductionmentioning

confidence: 99%

Effects of Continuous Tomato Monoculture on Soil Microbial Properties and Enzyme Activities in a Solar Greenhouse

Zhang

Fan

et al. 2017

Sustainability

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Soil-related obstacles resulting from continuous monoculture have limited the sustainable development of the tomato industry in China. An experiment on tomatoes with seven continuous monoculture treatments (the 1st, 3rd, 5th, 7th, 9th, 11th, and 13th crops, respectively) was conducted in a solar greenhouse, to investigate the influence of monoculture on soil quality. Most soil quality indicators first increased and then decreased with increasing continuous monoculture crops, and significant differences among crops were observed. Indicators at the 13th crop were significantly lower than those at the other crops in terms of average well color development (AWCD), substrate richness (S), the Shannon diversity index (H), and the McIntosh index (U) of the soil microbial community (SMC), soil urease (UR), and neutral phosphatase (N-PHO) activities, and available nitrogen (AN) and potassium (AK). However, fungal abundance (FUN) at the 13th crop was significantly higher than that at the other crops. As principal component analysis (PCA) revealed, SMC functional diversity at the 1st, 11th, and 13th crops were similar, and were obviously distinguished from those at the other crops. Moreover, the tomato yield was significantly and positively correlated with soil-available potassium and SMC functional diversity indexes. Our findings indicated that short-term continuous monoculture, e.g., for fewer than seven or nine crops, was beneficial for soil quality improvement. However, continuous monoculture for greater than 11 crops had adverse effects on soil enzyme activities, soil microbial abundances, soil chemical properties, soil SMC functional diversity, and the tomato yield, particularly at the 13th crop.

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Community level functional diversity and enzyme activities in paddy soils under different long-term fertilizer management practices

Cited by 99 publications

References 27 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

Community-level physiological profiles of microorganisms inhabiting soil contaminated with heavy metals

Effects of Continuous Tomato Monoculture on Soil Microbial Properties and Enzyme Activities in a Solar Greenhouse

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