Long-term Residue Management Effects on Soil Respiration in a Wheat-Soybean Double-Crop System

Soil Science ◽  
2014 ◽  
Vol 179 (3) ◽  
pp. 118-129 ◽  
Author(s):  
Faye Smith ◽  
Kristofor R. Brye ◽  
Edward E. Gbur ◽  
Pengyin Chen ◽  
Ken Korth
Keyword(s):  
Soil Respiration ◽  
Residue Management ◽  
Crop System ◽  
Management Effects

Long-term Management Effects on Soil Properties and Yields in a Wheat-Soybean Double-Crop System in Eastern Arkansas

Soil Science ◽  
2016 ◽  
Vol 181 (1) ◽  
pp. 1-12 ◽  
Author(s):  
C. Ryan Norman ◽  
Kristofor R. Brye ◽  
Edward E. Gbur ◽  
Pengyin Chen ◽  
John Rupe
Keyword(s):  
Soil Properties ◽  
Term Management ◽  
Crop System ◽  
Management Effects

scholarly journals Impacts of long-term plant residue management on soil organic matter quality, Pseudomonas community structure and disease suppressiveness

2019 ◽  
Vol 135 ◽  
pp. 396-406 ◽  
Author(s):  
Bryony E.A. Dignam ◽  
Maureen O'Callaghan ◽  
Leo M. Condron ◽  
Jos M. Raaijmakers ◽  
George A. Kowalchuk ◽  
...  
Keyword(s):  
Organic Matter ◽  
Community Structure ◽  
Soil Organic Matter ◽  
Residue Management ◽  
Plant Residue ◽  
Organic Matter Quality ◽  
Soil Organic Matter Quality

Soil respiration and N2O emission in croplands under different ploughing practices: a case study in south-east China

Soil Research ◽  
2009 ◽  
Vol 47 (2) ◽  
pp. 198 ◽  
Author(s):  
Shutao Chen ◽  
Yao Huang
Keyword(s):  
Soil Respiration ◽  
Soil Temperature ◽  
Agricultural Soils ◽  
Field Measurements ◽  
Triticum Aestivum L ◽  
N2o Emission ◽  
Cropping Season ◽  
Significant Difference

Studies on the CO2 and N2O emission patterns of agricultural soils under different ploughing practices may provide an insight into the potential and magnitude of CO2 and N2O mitigation in highly managed farmland soils. In this study, field measurements of soil respiration and N2O flux with different ploughing depths were performed in the 2003–04 wheat (Triticum aestivum L.), 2004 maize (Zea mays L.), and 2004–05 wheat seasons. Soil temperature and moisture were simultaneously measured. Results showed that, in each cropping season, the seasonal variation in soil respiration developed with a similar pattern for different treatments, which was primarily regulated by soil temperature. This work demonstrates that ploughing depth can influence long-term loss of carbon from soil, but this was contingent on preceding cropping types. Given the same preceding cropping practice, no significant difference in N2O emission was found among different ploughing depths in each cropping season.

scholarly journals Do soil bacterial communities respond differently to abrupt or gradual additions of copper?

2018 ◽  
Vol 95 (1) ◽  
Author(s):  
Michael McTee ◽  
Lorinda Bullington ◽  
Matthias C Rillig ◽  
Philip W Ramsey
Keyword(s):  
Heavy Metals ◽  
Soil Respiration ◽  
Microbial Communities ◽  
Bacterial Communities ◽  
Diversity Indices ◽  
Microbial Populations ◽  
Metal Concentrations ◽  
Soil Bacterial Communities ◽  
Bacterial Richness

ABSTRACTMany experiments that measure the response of microbial communities to heavy metals increase metal concentrations abruptly in the soil. However, it is unclear whether abrupt additions mimic the gradual and often long-term accumulation of these metals in the environment where microbial populations may adapt. In a greenhouse experiment that lasted 26 months, we tested whether bacterial communities and soil respiration differed between soils that received an abrupt or a gradual addition of copper or no copper at all. Bacterial richness and other diversity indices were consistently lower in the abrupt treatment compared to the ambient treatment that received no copper. The abrupt addition of copper yielded different initial bacterial communities than the gradual addition; however, these communities appeared to converge once copper concentrations were approximately equal. Soil respiration in the abrupt treatment was initially suppressed but recovered after four months. Afterwards, respiration in both the gradual and abrupt treatments wavered between being below or equal to the ambient treatment. Overall, our study indicates that gradual and abrupt additions of copper can yield similar bacterial communities and respiration, but these responses may drastically vary until copper concentrations are equal.

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