Nitrous oxide and methane emissions from long-term tillage under a continuous corn cropping system in Ohio

2009 ◽  
Vol 104 (2) ◽  
pp. 247-255 ◽  
Author(s):  
David A.N. Ussiri ◽  
Rattan Lal ◽  
Marek K. Jarecki
Keyword(s):  
Nitrous Oxide ◽  
Cropping System ◽  
Methane Emissions ◽  
Continuous Corn

EFFECTS OF CROPPING SYSTEM ON STRUCTURE OF BROOKSTON CLAY LOAM IN LONG-TERM EXPERIMENTAL PLOTS AT WOODSLEE, ONTARIO

1987 ◽  
Vol 67 (3) ◽  
pp. 571-584 ◽  
Author(s):  
J. A. McKEAGUE ◽  
C. A. FOX ◽  
J. A. STONE ◽  
R. PROTZ
Keyword(s):  
Bulk Density ◽  
Cropping Systems ◽  
Poa Pratensis ◽  
Cropping System ◽  
Clay Loam ◽  
Water Desorption ◽  
Continuous Corn ◽  
Ap Horizon ◽  
Loam Soil

Macro- and microstructure were described and water desorption characteristics were measured for a Brookston clay loam soil under different cropping systems. The Ap horizon of the long-term corn (Zea mays L.) plots differed markedly from those of a bluegrass (Poa pratensis L.) plot and a never-cultivated plot as follows: massive as opposed to strongly structured, macroporosity (pore width > 60 μm) ≤ 6% as opposed to more than 10%, isolated pores as opposed to interconnected pores, bulk density 1.4–1.5 Mg m−3 as opposed to 1.0–1.3 Mg m−3. The Ap horizon of the rotation plots, oats (Avena sativa L.), alfalfa (Medicago sativa L.), alfalfa, corn, differed from those of the continuous corn plots in having many more biopores larger than 0.5 mm in diameter (≥ 0.2% relative to ≤ 0.02%). Below a depth of 30 cm comparable horizons of soils from all plots were similar in structure, bulk density and water characteristic curves. Key words: Porosity, biopores, compaction, macromorphology, image analysis

Nitrous oxide and methane emissions from a vetch cropping season are changed by long-term tillage practices in a Mediterranean agroecosystem

2014 ◽  
Vol 51 (1) ◽  
pp. 77-88 ◽  
Author(s):  
Angela Tellez-Rio ◽  
Sonia García-Marco ◽  
Mariela Navas ◽  
Emilia López-Solanilla ◽  
Robert M. Rees ◽  
...  
Keyword(s):  
Nitrous Oxide ◽  
Methane Emissions ◽  
Tillage Practices ◽  
Cropping Season

Long-Term Fertilization Alters Nitrous Oxide Cycling Dynamics in Salt Marsh Sediments

2021 ◽  
Author(s):  
Xuefeng Peng ◽  
Qixing Ji ◽  
John H. Angell ◽  
Patrick J. Kearns ◽  
Jennifer L. Bowen ◽  
...  
Keyword(s):  
Nitrous Oxide ◽  
Salt Marsh ◽  
Marsh Sediments ◽  
Salt Marsh Sediments
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