Measurement of combine losses for corn and soybeans in Brazil

Marvin R. Paulsen, Francisco De Assis De Carvalho Pinto, Darly Geraldo De Sena, Rodrigo Zondonadi, Solenir Ruffato, Anderson Costa, Vilmar Antonio Ragagnin, Mary-Grace Danao

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Estimated soybean yields at 13% moisture ranged from 2663 to 4861 kg/ha. Pre-harvest losses ranged from 1.0 to 13.6 kg/ ha. Total soybean combine losses ranged from 47.4 to 260.5 kg/ha (1.2 to 5.5% of yield). The headers were the largest contributors to losses with 31 to 247 kg/ha. Shatter losses were the primary cause of losses in the headers and they increase markedly as harvest moistures decreased below 13%. A reduction in ground speed would have enabled soybean cutterbars to run closer to the ground and reduce stubble losses. An achievable reduction in combine harvest losses of 2 bags/ ha has an operator hourly value of U.S. $238 to 277/ hour. Corn yield at 14% moisture ranged from 6937 to 11,044 kg/ha. Pre-harvest ear losses ranged from 0 to 42 kg/ha. Total corn combine losses ranged from 36.2 to 320.6 kg/ha (0.3 to 3.6% of yield). Of this loss, header ear loss accounted for the largest portion with 0 to 237 kg/ha. Reduction in ground speed would benefit separation losses in corn. But not surprisingly, lodged corn can increase header ear losses by more than any other source of loss.

Original languageEnglish (US)
Title of host publicationAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2013, ASABE 2013
PublisherAmerican Society of Agricultural and Biological Engineers
Pages133-155
Number of pages23
ISBN (Print)9781627486651
StatePublished - 2013
EventAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2013 - Kansas City, MO, United States
Duration: Jul 21 2013Jul 24 2013

Publication series

NameAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2013, ASABE 2013
Volume1

Other

OtherAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2013
CountryUnited States
CityKansas City, MO
Period7/21/137/24/13

Keywords

  • Brazil
  • Combines
  • Corn
  • Harvesting losses
  • Losses
  • Post-harvest losses
  • Soybeans

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Bioengineering

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