Combine Harvester Crop Residue Management


For better consistent establishing crop in the next season, the farmers must maintain the residue correctly through active chopping and spreading methods. Control of the residue is essentially involved in even order of chaff distribution and straw management at the end of the combine harvesters.




Combine Harvester Crop Residue Management

Component of Crop Residue Management


Crop residues like composed of straw, husk, chaff, corn cobs etc are considered as integral organic fertilizers also used in energy generation and biogas supply. Straw is the material which goes through the threshing and separating units of the Combine harvester and released from the cleaning unit of the combine machine.


For uniform distribution improvement, combine harvesters are now implemented with choppers, spreaders, or a mixture of both for better residue processing. In fact, combines with header wideness of 20 to 30 feet or more may not be enough equipped to consistently scatter a large amount of residue.  


Residue Chopping and Spreading


The modern combine harvesters release greater volumes of MOG on a small-width swath opposed to the width of the header. Therefore, the weed and grain waste are fixed at the back of the combine. In fact, if the crop debris is left at the back of the combine and is shallowly included into the soil, the organic material’s growth in the upper soil layer directs out to be an issue because of their incomplete decomposition and transformation to humus.


When not gathered, maintaining the crop residue formed from the crop harvesting is really necessary for the seeding process, especially a reduced or no-tillage method. The successful crop residue disposal can improve ablation protection and stand establishment.


Uniform distribution has various advantages for farmers in no-till, low-till or traditional till systems, consisting of better attrition resistance, less obstructing of tillage or seeding devices, and enhance stand demonstration.


Basis Need of residue chopping and spreading system


Here are some basic need for residue chopping and spreading system in a combine harvester.


  • Remit constant and uniform short chop length
  • Evenly spread the chopped matter over the entire working width of the combine machine
  • Produce a comparatively low quantity of dust
  • Combine machine use low driving power
  • Need a low level of harvester maintenance



Reference - combine harvester

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