scholarly journals Outdoor Storage Characteristics of Single-Pass Large Square Corn Stover Bales in Iowa

Energies ◽  
2011 ◽  
Vol 4 (10) ◽  
pp. 1686-1694 ◽  
Author(s):  
Ajay Shah ◽  
Matthew J. Darr ◽  
Keith Webster ◽  
Christopher Hoffman
Keyword(s):  
Corn Stover ◽  
Single Pass ◽  
Storage Characteristics

scholarly journals Outdoor Storage Characteristics of Single-Pass Large Square Corn Stover Bales in Iowa

Energies ◽  
2011 ◽  
Vol 4 (10) ◽  
pp. 1687-1695 ◽  
Author(s):  
Ajay Shah ◽  
Matthew J. Darr ◽  
Keith Webster ◽  
Christopher Hoffman
Keyword(s):  
Corn Stover ◽  
Single Pass ◽  
Storage Characteristics

Physicochemical properties of bio-oil and biochar produced by fast pyrolysis of stored single-pass corn stover and cobs

2012 ◽  
Vol 125 ◽  
pp. 348-352 ◽  
Author(s):  
Ajay Shah ◽  
Matthew J. Darr ◽  
Dustin Dalluge ◽  
Dorde Medic ◽  
Keith Webster ◽  
...  
Keyword(s):  
Physicochemical Properties ◽  
Corn Stover ◽  
Fast Pyrolysis ◽  
Single Pass ◽  
Bio Oil

Effects of Moisture Content and Hood Design on Shredding Extent of Corn Stover

2019 ◽  
Vol 35 (5) ◽  
pp. 705-711
Author(s):  
Jiechao (Simon) Ma ◽  
Dennis Buckmaster
Keyword(s):  
Moisture Content ◽  
Corn Stover ◽  
Ion Conductivity ◽  
Plant Nutrients ◽  
Single Pass

Abstract. A corn stover shredder using a flail type knife and tine shredding mechanism was designed, fabricated, and tested with the objective of improving the extent of shredding with corn stover. Leachate ion conductivity index represents access to plant nutrients and was used to indicate shredding effectiveness. Shredding was more effective (higher leachate ion conductivity index representing better access to plant nutrients) with a closed hood design with slots (single pass) than with an open hood design (multi-pass). Extent of shredding was proportional to moisture content at the time of shredding. The attempt to process the corn stover at 70% w.b. was promising as it resulted in a highest leachate ion conductivity (LIC) index of 86%, which is comparable to that of hammer-milled dry stover. Shredding at 8% or 40% moisture content yielded lower LIC indices. Two speeds for the shredding rotors (no-load speeds of 1300 and 700 rpm) were tested with the three moisture levels and the closed-hood with slots design but shredding speed did not affect LIC. Keywords: Corn stover, Hood design, Leachate ion conductivity, Moisture content, Shredding, Shredding speed.

Production Scale Single-pass Corn Stover Large Square Baling Systems

2013 ◽  
Author(s):  
Keith E Webster ◽  
Mathew Darr ◽  
Jeff Askey ◽  
Drew Sprangers
Keyword(s):  
Corn Stover ◽  
Production Scale ◽  
Single Pass

Increasing Single-Pass Corn Stover Yield by Combine Header Modifications

2020 ◽  
Vol 63 (4) ◽  
pp. 923-932
Author(s):  
Chase P. Walters ◽  
Scott C. Dietsche ◽  
Joseph R. Keene ◽  
Joshua C. Friede ◽  
Kevin J. Shinners
Keyword(s):  
Fuel Consumption ◽  
Corn Stover ◽  
Specific Fuel Consumption ◽  
List Type ◽  
Single Pass ◽  
Considerable Cost ◽  
Stover Yield ◽  
Combine Harvester ◽  
Oriented Parallel

HighlightsRotary knives were added to an ear-snapper header to increase corn stover yield in a single-pass biomass system.Stover yield increased with the number of knives but at the expense of combine productivity and fuel consumption.Bale moisture was often greater than would be considered appropriate for good aerobic conservation.Abstract.Modifications were made to a conventional ear-snapper corn header to increase corn stover yield when a single-pass round baling system was integrated with a combine harvester. To collect more leaves and top portions of stalks, knives oriented parallel to the deck plates were added to shear crop material above the ear-snapper rolls. Stover yield was primarily altered by the number of knives on the header; and to a lesser extent by the fore-and-aft position of the knives and the header height. The number of knives on a 12-row header was varied from two to six in increments of two. Stover yield increased linearly with the number of knives, and dry basis stover yield ranged from 1.1 Mg ha-1 (no knives) to 3.6 Mg ha-1 (six knives) over the five years of data collected (2012 to 2016). Combine productivity decreased linearly and specific fuel consumption increased linearly with greater stover yield. Combine productivity declined by as much as 50% when six knives were used. Dry basis bale density decreased linearly with the number of knives because the dense cobs became a smaller fraction of the total bale mass. In three of the five years, bale moisture increased linearly with the number of knives; in those three years, bale moisture was typically greater than 30% (wet basis). Adding knives to the header increased single-pass stover yield but at considerable cost to combine harvester productivity, and aerobic bale conservation would be challenged by high bale moisture. Keywords: Baling, Combine, Corn, Density, Moisture, Productivity, Stover, Yield.

Aerobic and Anaerobic Storage of Single-pass, Chopped Corn Stover

2009 ◽  
Author(s):  
Kevin J Shinners ◽  
Aaron D Wepner ◽  
Richard E Muck ◽  
Paul J Weimer
Keyword(s):  
Corn Stover ◽  
Single Pass ◽  
Anaerobic Storage ◽  
Aerobic And Anaerobic

Single-Pass Baling of Corn Stover

2012 ◽  
Author(s):  
Joseph R Keene ◽  
Kevin J Shinners ◽  
Lenny Hill ◽  
Adam Stallcop ◽  
Scott Wemhoff ◽  
...  
Keyword(s):  
Corn Stover ◽  
Single Pass

scholarly journals PSIX-15 Intake of corn stover plant parts by feedlot beef steers

2020 ◽  
Vol 98 (Supplement_4) ◽  
pp. 425-425
Author(s):  
Caleb Karls ◽  
Kevin Shinners ◽  
Dan Schaefer
Keyword(s):  
Corn Stover ◽  
Net Energy ◽  
Beef Steers ◽  
Final Body Weight ◽  
Single Pass ◽  
Plant Parts ◽  
Whole Plant ◽  
Corn Residue ◽  
Fractional Distribution ◽  
Corn Grain

Abstract Corn stover supports feedlot operations in intensive corn producing regions. A single-pass corn grain and stover harvest system was developed to increase efficiency of field operations and capture different anatomical fractions than are typically harvested with conventional corn stover. The objectives were to feed beef steers diets that included a roughage component consisting of harvested corn residue in chopped form from conventional corn stover bales (CST) or single-pass bales (SPB). Whole-plant corn silage (WPCS) served as a control. Steers (n = 90, 5 pens/treatment) were fed during Grow (84 d) and Finish (66 d) phases to assess consumption of corn plant botanical fractions and calculate net energy values of the stover feeds. Cattle consumed a larger proportion of stover as cob (P < 0.001) and less as stalk (P = 0.001) when stover was offered as SPB rather than CST. These differences are consistent with the fractional distribution of botanical components offered. During the Grow phase, cattle fed WPCS had greater (P = 0.018) daily gains (1.27 kg d-1) than cattle fed the SPB (1.14 kg d-1) and CST (1.08 kg d-1), and were more efficient than CST cattle. Steers sorted corn stover during both phases and consumed 52.5% of corn stover offered. SPB cob intake was 70% greater than CST cob intake (P < 0.01) indicating if more cob fraction is available, cattle will consume more. There was no treatment effect on final body weight (P = 0.37) or growth rate (P = 0.12) during the Finish phase. Stover NEm and NEg were calculated using Dairy NRC (2001) methods for SPB (1.04 and 0.49 Mcal kg-1) and CST (0.98 and 0.44 Mcal kg-1), respectively. In conclusion, there is evidence that CST and SPB can substitute for WPCS in beef feedlot diets without adverse effects on overall steer performance.

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