Organic nutrient sources and biochar technology on microbial biomass carbon and soil enzyme activity in maize-black gram cropping system

2021 ◽  
Author(s):  
Shaon Kumar Das ◽  
Goutam Kumar Ghosh ◽  
Ravikant Avasthe ◽  
Burhan U. Choudhury ◽  
Vinay Kumar Mishra ◽  
...  
Keyword(s):  
Enzyme Activity ◽  
Microbial Biomass ◽  
Microbial Biomass Carbon ◽  
Cropping System ◽  
Soil Enzyme ◽  
Soil Enzyme Activity ◽  
Biomass Carbon ◽  
Black Gram ◽  
Nutrient Sources ◽  
Organic Nutrient

scholarly journals Differences of soil enzyme activities and its influencing factors under different flooding conditions in Ili Valley, Xinjiang

PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e8531 ◽  
Author(s):  
Yulu Zhang ◽  
Dong Cui ◽  
Haijun Yang ◽  
Nijat Kasim
Keyword(s):  
Microbial Biomass ◽  
Organic Carbon ◽  
Soil Organic Carbon ◽  
Total Phosphorus ◽  
Enzyme Activities ◽  
Catalase Activity ◽  
Microbial Biomass Carbon ◽  
Chemical Properties ◽  
Soil Enzyme ◽  
Biomass Carbon

Background A wetland is a special ecosystem formed by the interaction of land and water. The moisture content variation will greatly affect the function and structure of the wetland internal system. Method In this paper, three kinds of wetlands with different flooding levels (Phragmites australis wetland (long-term flooding), Calamagrostis epigeios wetland(seasonal flooding) and Ditch millet wetland (rarely flooded)) in Ili Valley of Xinjiang China were selected as research areas. The changes of microbial biomass carbon, soil physical and chemical properties in wetlands were compared, and redundancy analysis was used to analyze the correlation between soil physical and chemical properties, microbial biomass carbon and enzyme activities (soil sucrase, catalase, amylase and urease). The differences of soil enzyme activities and its influencing factors under different flooding conditions in Ili Valley were studied and discussed. Result The results of this study were the following: (1) The activities of sucrase and amylase in rarely flooded wetlands and seasonally flooded wetlands were significantly higher than those in long-term flooded wetlands; the difference of catalase activity in seasonal flooded wetland was significant and the highest. (2) Redundancy analysis showed that soil organic carbon, dissolved organic carbon, total phosphorus and soil microbial biomass carbon had significant effects on soil enzyme activity (p < 0.05). (3) The correlation between soil organic carbon and the sucrase activity, total phosphorus and the catalase activity was the strongest; while soil organic carbon has a significant positive correlation with invertase, urease and amylase activity, with a slight influence on catalase activity. The results of this study showed that the content of organic carbon, total phosphorus and other soil fertility factors in the soil would be increased and the enzyme activity would be enhanced if the flooding degree was changed properly.

Effects of graphene oxides on soil enzyme activity and microbial biomass

2015 ◽  
Vol 514 ◽  
pp. 307-313 ◽  
Author(s):  
Haegeun Chung ◽  
Min Ji Kim ◽  
Kwanyoung Ko ◽  
Jae Hyeuk Kim ◽  
Hyun-ah Kwon ◽  
...  
Keyword(s):  
Enzyme Activity ◽  
Microbial Biomass ◽  
Soil Enzyme ◽  
Soil Enzyme Activity ◽  
Graphene Oxides

Effect of Heavy Metals Cu, Cd, Pb and Zn on Enzyme Activity and Microbial Biomass Carbon in Brown Soil

2014 ◽  
Vol 1073-1076 ◽  
pp. 726-730 ◽  
Author(s):  
Lei Yu ◽  
Jie Min Cheng
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Enzyme Activity ◽  
Microbial Biomass ◽  
Catalase Activity ◽  
Urease Activity ◽  
Microbial Biomass Carbon ◽  
Biomass Carbon ◽  
Brown Soil ◽  
Soil Urease

To get more sensitive index for making scientific and objective judgment on heavy metal pollution in brown soil, the influence which heavy metals Cu, Cd, Pb and Zn exert on soil urease, catalase activity and microbial biomass carbon content were evaluated by means of laboratory simulation.Experiment results showed that urease activity firstly increased with the addition of Cu, Cd and Pb, then showed decline trends. But for Zn, the activity of urease was obviously decline with the increased Zn concentrations. Catalase activity firstly increased with the addition of Cu then showed decline trend. But for Cd, Pb and Zn, the activity of catalase obviously declined. Microbial biological carbon all showed decline trends with the addition of Cu, Cd, Pb and Zn.

scholarly journals Soil microbial dynamics and enzyme activities as influenced by biofertilizers and split application of vermicompost in rhizosphere of wheat (Triticum aestivum. L.)

2021 ◽  
Vol 42 (5) ◽  
pp. 1370-1378
Author(s):  
S. Aechra ◽  
◽  
R.H. Meena ◽  
S.C. Meena ◽  
S.L. Mundra ◽  
...  
Keyword(s):  
Enzyme Activity ◽  
Microbial Biomass ◽  
Microbial Population ◽  
Microbial Biomass Carbon ◽  
Biological Properties ◽  
Biomass Carbon ◽  
Split Application ◽  
Carbon And Nitrogen ◽  
Soil Microbial ◽  
Phosphatase Enzyme

Aim: A field experiment was conducted during rabi season to determine the effect of biofertilizers and split application of vermicompost on biological properties (microbial biomass carbon and nitrogen, microbial populations and enzyme activities) in rhizosphere of wheat. Methodology: The experiment was laid out in factorial randomized block design with three replications consisting of twenty treatment combinations. Soil samples were collected from the plots at 0-15 cm depth after harvest of wheat crop and soil biological properties analyzed using standard analytical procedure. Results: The experiment results indicated that among biofertilizers treatments, seed inoculation with Azotobacter + PSB + KMB + ZnSB (B5) resulted in a significant higher soil microbial biomass carbon, microbial biomass nitrogen, population of bacteria, fungi and actinomycetes, dehydrogenase activity and acid phosphatase enzyme activity in comparison to control. Similarly, application of vermicompost as 50 % VC at sowing + 50 % VC at tillering (V3) were obtained improved microbial biomass carbon and nitrogen, microbial population, dehydrogenase activity and acid phosphatase enzyme activity while remaining at par with 75 % VC at sowing + 25 % VC at tillering (V4) proved superior in comparison to rest of the treatments due to continuous supply of nutrients throughout the crop cycle. Grain and straw yield of wheat also increased due to the application of biofertilizers and vermicompost over the control. Interpretation: Biofertilizers (Azotobacter, PSB, KMB and ZnSB) and split application of vermicompost enhanced the soil microbial population and enzymatic activities which sustained the soil health for better wheat production.

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