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Bioresource and Agricultural Engineering Commons™
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Full-Text Articles in Bioresource and Agricultural Engineering
Multilocation Corn Stover Harvest Effects On Crop Yields And Nutrient Removal, Douglas L. Karlen, Stuart J. Birrell, Jane M. F. Johnson, Shannon L. Osborne, Thomas E. Schumacher, Gary E. Varvel, Richard B. Ferguson, Jeff M. Novak, James R. Fredrick, John M. Baker, John A. Lamb, Paul R. Adler, Greg W. Roth, Emerson D. Nafziger
Multilocation Corn Stover Harvest Effects On Crop Yields And Nutrient Removal, Douglas L. Karlen, Stuart J. Birrell, Jane M. F. Johnson, Shannon L. Osborne, Thomas E. Schumacher, Gary E. Varvel, Richard B. Ferguson, Jeff M. Novak, James R. Fredrick, John M. Baker, John A. Lamb, Paul R. Adler, Greg W. Roth, Emerson D. Nafziger
Douglas L Karlen
Corn (Zea mays L.) stover was identified as an important feedstock for cellulosic bioenergy production because of the extensive area upon which the crop is already grown. This report summarizes 239 site-years of field research examining effects of zero, moderate, and high stover removal rates at 36 sites in seven different states. Grain and stover yields from all sites as well as N, P, and K removal from 28 sites are summarized for nine longitude and six latitude bands, two tillage practices (conventional vs no tillage), two stover-harvest methods (machine vs calculated), and two crop rotations {continuous corn (maize) …
Corn Grain, Stover Yield And Nutrient Removal Validations At Regional Partnership Sites, Douglas L. Karlen, Stuart J. Birrell, Jane M. F. Johnson, Shannon L. Osborne, Thomas E. Schumacher, Gary E. Varvel, Richard B. Ferguson, Jeff M. Novak, James R. Fredrick, John M. Baker, John A. Lamb, Paul R. Adler, Greg W. Roth, Emerson D. Nafziger
Corn Grain, Stover Yield And Nutrient Removal Validations At Regional Partnership Sites, Douglas L. Karlen, Stuart J. Birrell, Jane M. F. Johnson, Shannon L. Osborne, Thomas E. Schumacher, Gary E. Varvel, Richard B. Ferguson, Jeff M. Novak, James R. Fredrick, John M. Baker, John A. Lamb, Paul R. Adler, Greg W. Roth, Emerson D. Nafziger
Douglas L Karlen
Corn (Zea mays L.) stover has been identified as a major feedstock for cellulosic bioenergy. This report summarizes grain and stover yield as well as N, P, and K removal at several Sun Grant Regional Partnership (SGRP) sites. National Agricultural Statistical Service (NASS) grain yields were used to assess the relevancy of plot-scale yields with county averages. Seasonal variation in weather patterns caused yields to differ substantially among sites and years. Nutrient removal estimates were significantly influenced by the sampling method (i.e. analysis of hand samples between physiologic maturity and grain harvest versus stover collected during the harvest operation). Based …
Development Of Sustainable Corn Stover Harvest Strategies For Cellulosic Ethanol Production, Stuart J. Birrell, Douglas L. Karlen, Adam Wirt
Development Of Sustainable Corn Stover Harvest Strategies For Cellulosic Ethanol Production, Stuart J. Birrell, Douglas L. Karlen, Adam Wirt
Douglas L Karlen
To prepare for a 2014 launch of commercial scale cellulosic ethanol production from corn/maize (Zea mays L.) stover, POET-DSM near Emmetsburg, IA has been working with farmers, researchers, and equipment dealers through “Project Liberty” on harvest, transportation, and storage logistics of corn stover for the past several years. Our objective was to evaluate seven stover harvest strategies within a 50-ha (125 acres) site on very deep, moderately well to poorly drained Mollisols, developed in calcareous glacial till. The treatments included the following: conventional grain harvest (no stover harvest), grain plus a second-pass rake and bale stover harvest, and single-pass …