- Crop Residue Chopping and Spreading Processes and Equipment

2015 ◽  
pp. 334-347
Keyword(s):  
Crop Residue ◽  
Spreading Processes

Flame-Spreading Processes in a Small-Caliber Gun

2007 ◽  
Author(s):  
Albert W. Horst ◽  
Paul J. Conroy
Keyword(s):  
Flame Spreading ◽  
Spreading Processes

Second‐Derivative Spectra for Estimating Crop Residue Cover

1994 ◽  
Vol 86 (2) ◽  
pp. 349-354 ◽  
Author(s):  
Haiping Su ◽  
Michel D. Ransom ◽  
Edward T. Kanemasu ◽  
Tanvir H. Demetriades‐Shah
Keyword(s):  
Crop Residue ◽  
Second Derivative ◽  
Derivative Spectra ◽  
Second Derivative Spectra

scholarly journals Nepal Ambient Monitoring and Source Testing Experiment (NAMaSTE): Emissions of particulate matter from wood and dung cooking fires, garbage and crop residue burning, brick kilns, and other sources

2017 ◽  
Author(s):  
Thilina Jayarathne ◽  
Chelsea E. Stockwell ◽  
Prakash V. Bhave ◽  
Puppala S. Praveen ◽  
Chathurika M. Rathnayake ◽  
...  
Keyword(s):  
Particulate Matter ◽  
Crop Residue ◽  
Inorganic Ions ◽  
Brick Kiln ◽  
Ambient Monitoring ◽  
Organic Species ◽  
Brick Kilns ◽  
Crop Residue Burning ◽  
Testing Experiment ◽  
Combustion Sources

Abstract. The Nepal Ambient Monitoring and Source Testing Experiment (NAMaSTE) characterized widespread and under-sampled combustion sources common to South Asia, including brick kilns, garbage burning, diesel and gasoline generators, diesel groundwater pumps, idling motorcycles, traditional and modern cooking stoves and fires, crop residue burning, and a heating fire. Fuel-based emission factors (EF; with units of pollutant mass emitted per kg of fuel combusted) were determined for fine particulate matter (PM2.5), organic carbon (OC), elemental carbon (EC), inorganic ions, trace metals, and organic species. For the forced draught zig-zag brick kiln, EFPM2.5 ranged 1–19 g kg−1 with major contributions from OC (7 %), sulfate expected to be in the form of sulfuric acid (31.9 %), and other chemicals not measured (e.g., particle bound water). For the clamp kiln, EFPM2.5 ranged 8–13 g kg−1, with major contributions from OC (63.2 %), sulfate (20.8 %), and ammonium (14.2 %). Our brick kiln EFPM2.5 values may exceed those previously reported, partly because we sampled emissions at ambient temperature after emission from the stack or kiln allowing some particle-phase OC and sulfate to form from gaseous precursors. The combustion of mixed household garbage under dry conditions had an EFPM2.5 of 7.4 ± 1.2 g kg−1, whereas damp conditions generated the highest EFPM2.5 of all combustion sources in this study, reaching up to 125 ± 23 g kg−1. Garbage burning emissions contained relatively high concentrations of polycyclic aromatic compounds (PAHs), triphenylbenzene, and heavy metals (Cu, Pb, Sb), making these useful markers of this source. A variety of cooking stoves and fires fueled with dung, hardwood, twigs, and/or other biofuels were studied. The use of dung for cooking and heating produced higher EFPM2.5 than other biofuel sources and consistently emitted more PM2.5 and OC than burning hardwood and/or twigs; this trend was consistent across traditional mud stoves, chimney stoves, and 3-stone cooking fires. The comparisons of different cooking stoves and cooking fires revealed the highest PM emissions from 3-stone cooking fires (7.6–73 g kg−1), followed by traditional mud stoves (5.3–19.7 g kg−1), mud stoves with a chimney for exhaust (3.0–6.8 g kg−1), rocket stoves (1.5–7.2 g kg−1), induced-draught stoves (1.2–5.7 g kg−1), and the bhuse chulo stove (3.2 g kg−1), while biogas had no detectable PM emissions. Idling motorcycle emissions were evaluated before and after routine servicing at a local shop, which decreased EFPM2.5 from 8.8 ± 1.3 g kg−1 to 0.71 ± 0.4 g kg−1 when averaged across five motorcycles. Organic species analysis indicated that this reduction in PM2.5 was largely due to a decrease in emission of motor oil, probably from the crankcase. The EF and chemical emissions profiles developed in this study may be used for source apportionment and to update regional emission inventories.

Crop residue application at low rates could improve soil phosphorus cycling under long-term no-tillage management

2021 ◽  
Vol 57 (4) ◽  
pp. 499-511
Author(s):  
Guohui Wu ◽  
Kai Wei ◽  
Zhenhua Chen ◽  
Dongqi Jiang ◽  
Hongtu Xie ◽  
...  
Keyword(s):  
Crop Residue ◽  
Soil Phosphorus ◽  
Phosphorus Cycling ◽  
No Tillage

scholarly journals Crop residue displacement by soil inversion: Annelid responses and their impact on carbon and nitrogen dynamics in a lab-based mesocosm study

2021 ◽  
Vol 167 ◽  
pp. 104151
Author(s):  
Ilka Engell ◽  
Deborah Linsler ◽  
Stefan Schrader ◽  
Astrid Taylor ◽  
Bernard Ludwig ◽  
...  
Keyword(s):  
Crop Residue ◽  
Nitrogen Dynamics ◽  
Carbon And Nitrogen ◽  
Carbon And Nitrogen Dynamics ◽  
Soil Inversion

scholarly journals Impact of crop residue burning in Haryana on the air quality of Delhi, India

Heliyon ◽  
2021 ◽  
Vol 7 (5) ◽  
pp. e06973
Author(s):  
Pallavi Saxena ◽  
Saurabh Sonwani ◽  
Ananya Srivastava ◽  
Madhavi Jain ◽  
Anju Srivastava ◽  
...  
Keyword(s):  
Air Quality ◽  
Crop Residue ◽  
Crop Residue Burning

scholarly journals Effect of P, Zn and crop residue return on grain yield and P uptake of direct seeded rice

2021 ◽  
Vol 648 (1) ◽  
pp. 012181
Author(s):  
N Al Viandari ◽  
A Wihardjaka ◽  
H B Pulunggono ◽  
Suwardi ◽  
B N Sulastri ◽  
...  
Keyword(s):  
Grain Yield ◽  
Crop Residue ◽  
P Uptake ◽  
Direct Seeded

scholarly journals Benchmarking seeding strategies for spreading processes in social networks: an interplay between influencers, topologies and sizes

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Felipe Montes ◽  
Ana María Jaramillo ◽  
Jose D. Meisel ◽  
Albert Diaz-Guilera ◽  
Juan A. Valdivia ◽  
...  
Keyword(s):  
Social Networks ◽  
Spreading Processes

STILL VIDEO IMAGE ANALYSIS OF CROP RESIDUE SOIL COVERS

1991 ◽  
Vol 34 (6) ◽  
pp. 2469-2474 ◽  
Author(s):  
J. E. Morrison ◽  
Jr. ◽  
F. W. Chichester
Keyword(s):  
Image Analysis ◽  
Crop Residue ◽  
Video Image ◽  
Soil Covers ◽  
Video Image Analysis
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