Geographical and climatic differences in long-term effect of organic and inorganic amendments on soil enzymatic activities and respiration in field experimental stations of China

Ge, Gaofei; Li, Z.J.; Zhang, J.; Wang, L.G.; Xu, Minggang; Zhang, J.B.; Wang, J.K.; Xie, Xinglong; Liang, Yongchao

doi:10.1016/j.ecocom.2009.02.001

Cited by 52 publications

(23 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this study, the enzyme activities (amylase, cellulase and invertase) were higher at different vegetation sites compared with those at the control site due to the higher organic carbon content in the vegetation sites. Similar observation was reported by Fernandes et al (2005) and Ge et al (2009). This may again be attributed to higher level of organic sources which accelerate the growth and activity of microorganisms.…”

Section: Influence Of Soil Organic Carbon On Enzyme Activitiessupporting

confidence: 86%

Soil enzyme activities in dependence on tree litter and season of a social forest, Burdwan, India

Das

Aditya

Datta

et al. 2013

Archives of Agronomy and Soil Science

View full text Add to dashboard Cite

The study was done to evaluate enzyme activities (amylase, cellulase and invertase) from the soils of different vegetation sites, with seasonal variation, of social forest, Burdwan, India. Study results showed significant lower enzymatic activities in the subsoil compared to those of the topsoil. The seasonal variations indicated that amylase, cellulase and invertase enzyme activities had reached peaks during the rainy seasons in different soil depths. Amylase activity was highest in Tectona litter containing soil in all seasons in both the soil layers. All the three enzyme activities have shown significant positive correlation with available nitrogen (p < 0.05) and available phosphorous (p < 0.05) during rainy season in both the soil depths. Correlation study revealed that soil organic carbon was positively correlated with cellulase and invertase activities except in the Anacardium vegetation site in the topsoil during rainy season. Irrespective of the seasons and the depths of soil, control site without vegetation showed much lower levels of organic carbon and enzyme activity compared to those of the experimental sites. Therefore, it is concluded that carbon transformation will be higher during rainy season in the vegetation sites of forest soil under such agroclimatic conditions.

show abstract

Section: Influence Of Soil Organic Carbon On Enzyme Activitiessupporting

confidence: 86%

Soil enzyme activities in dependence on tree litter and season of a social forest, Burdwan, India

Das

Aditya

Datta

et al. 2013

Archives of Agronomy and Soil Science

View full text Add to dashboard Cite

show abstract

“…In addition, chemical fertilization significantly enhanced the activities of soil oxidoreductase (catalase and dehydrogenase), and most extracellular enzymes involved in C (cellulase and polyphenol oxidase), N (urease and nitrate reductase), P (acid phosphatase) and S cycling (arylsulfatase) and were in general agreement with the functional gene data as revealed by GEOCHIP (Tables 2 and 4). This may be the consequence of stimulation of both microbial growth and activity by improved nutrient availability as well as the changes in microbial community composition induced by different fertilization regimes (Chu et al 2007;Ge et al 2009;Ai et al 2012). In addition, the improvement of soil physical properties by chemical fertilization could make the soil environment more favourable for microbial growth (Haynes & Naidu 1998;Iovieno et al 2009).…”

Section: Discussionmentioning

confidence: 99%

Long‐term balanced fertilization increases the soil microbial functional diversity in a phosphorus‐limited paddy soil

et al. 2014

View full text Add to dashboard Cite

The influence of long-term chemical fertilization on soil microbial communities has been one of the frontier topics of agricultural and environmental sciences and is critical for linking soil microbial flora with soil functions. In this study, 16S rRNA gene pyrosequencing and a functional gene array, GEOCHIP 4.0, were used to investigate the shifts in microbial composition and functional gene structure in paddy soils with different fertilization treatments over a 22-year period. These included a control without fertilizers; chemical nitrogen fertilizer (N); N and phosphate (NP); N and potassium (NK); and N, P and K (NPK). Based on 16S rRNA gene data, both species evenness and key genera were affected by P fertilization. Functional gene array-based analysis revealed that long-term fertilization significantly changed the overall microbial functional structures. Chemical fertilization significantly increased the diversity and abundance of most genes involved in C, N, P and S cycling, especially for the treatments NK and NPK. Significant correlations were found among functional gene structure and abundance, related soil enzymatic activities and rice yield, suggesting that a fertilizerinduced shift in the microbial community may accelerate the nutrient turnover in soil, which in turn influenced rice growth. The effect of N fertilization on soil microbial functional genes was mitigated by the addition of P fertilizer in this P-limited paddy soil, suggesting that balanced chemical fertilization is beneficial to the soil microbial community and its functions.

show abstract

“…Phosphorus ratios have changed from a deficit to small surplus (with a large surplus in some vegetable areas), but potassium is generally still in deficit (Shen et al 2005). Unbalanced nutrient ratios in mixed synthetic fertilizers can cause both biological and physicochemical damage to soils, leading to acidification, secondary salinization and reduction of microbial activity (Cao et al 2004;Ge et al 2009;Guo et al 2010). This damage lowers crop yields and may lead to farmers applying even more fertilizers to try to compensate for the reduced soil productivity and thereby intensify NPS pollution and the cycle of environmental degradation.…”

Section: Reasons For Unsuitable Application Of Fertilizer and Pesticimentioning

confidence: 99%

Agricultural Non-Point Source Pollution in China: Causes and Mitigation Measures

Sun

Zhang

Yang

et al. 2012

AMBIO

501

199

View full text Add to dashboard Cite

Non-point source (NPS) pollution has been increasingly serious in China since the 1990s. The increases of agricultural NPS pollution in China is evaluated for the period 2000-2008 by surveying the literature on water and soil pollution from fertilizers and pesticides, and assessing the surplus nitrogen balance within provinces. The main causes for NPS pollution were excessive inputs of nitrogen fertilizer and pesticides, which were partly the result of the inadequate agricultural extension services and the rapid expansion of intensive livestock production with little of waste management. The annual application of synthetic nitrogen fertilizers and pesticides in China increased by 50.7 and 119.7%, respectively, during 1991-2008. The mitigation measures to reduce NPS pollution include: correct distortion in fertilizer prices; improve incentives for the recycling of organic manure; provide farmers with better information on the sound use of agro-chemicals; and tighten the regulations and national standards on organic waste disposal and pesticides use.

show abstract

Geographical and climatic differences in long-term effect of organic and inorganic amendments on soil enzymatic activities and respiration in field experimental stations of China

Cited by 52 publications

References 24 publications

Soil enzyme activities in dependence on tree litter and season of a social forest, Burdwan, India

Soil enzyme activities in dependence on tree litter and season of a social forest, Burdwan, India

Long‐term balanced fertilization increases the soil microbial functional diversity in a phosphorus‐limited paddy soil

Agricultural Non-Point Source Pollution in China: Causes and Mitigation Measures

Contact Info

Product

Resources

About