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This article was co-authored by Don Tipping. Don Tipping is an Organic Farmer based in Williams, Oregon. With almost 30 years of full-time experience with organic farming, Don owns and operates a mail-order seed company, Siskiyou Seeds, which is a bio-regional seed hub. He specializes in growing crops, including vegetables, flowers, medicinal and culinary herbs, and seed crops. Don is a member of the Organic Seed Alliance and has a Bachelor of Applied Science (BASc) from the University of California, Davis.
This article has been viewed 177,023 times.
Harvesting wheat is a really difficult process that requires pretty good preparation and decent timing. If dry wheat is left out in the field too long, winds and storms can destroy the crop. The quality of the wheat may decrease if the wheat gets rained on and then dries again. Harvesting wheat also requires the use of a combine - a heavy machine that requires training and careful operation. A single person can perform maintenance on and operate a combine, but a large wheat harvest will often take a team operating several combines and trucks.
Steps
Measure the wheat’s moisture level. Moisture level will determine when wheat is ready to harvest. Wheat is harvested in the summer months, after being sown in the spring or winter. The moisture content of the wheat is the most critical factor for determining when your wheat is ready for harvest.- To measure moisture level, use a moisture meter. They are available at agricultural and farming stores.
- Grain is ready to harvest between 20% and 14% moisture.
Perform necessary maintenance on your combine. This will help to ensure optimum performance. Use the owner's manual to be sure of your combine’s specific requirements.- Check the sickle to make sure it is sharp, for best performance.
- Check height and contour controls of the headers.
- Grease everything, in accordance with the manual, to ensure smooth operation.
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Inspect the feeder house of the combine to ensure it is working properly. It may seem durable, but it can break if not properly maintained.- Check the slats and chains and replace those that are broken, bent, or worn.
- Examine the drive belt to ensure it is not cracking. Replace the belt if it is damaged.
Inspect your equipment each time you use it. Getting in the habit of checking your equipment will make you less likely to miss something.- Check air pressure in your combine’s tires at least once per week.
- Remember to gas up your combine before heading out.
- Check the oil and radiator levels often.
- Clean the machine of dust, debris, dirt and anything else that may cause problems during operation.
- Remember to inspect your lights and flashers, especially if you will be traveling on public roads at any time.
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Adjust the combine header. The combine header will need to be adjusted in relation to the height of the wheat for cutting. The header should be set to get the most wheat with the least amount of straw.- Try to ensure 8 to 12 inches of wheat stubble remains. This will help the soil keep its moisture.
- Be prepared to constantly adjust the height of the combine header as the height of the wheat in the field changes. The header height determines at what point the wheat is being cut, and will therefore have to vary with the height of the wheat.
- If you see that a lot of straw is being taken in, raise the header slightly.
Adjust the reel speed relative to the ground speed. It is important to do this so you do not lose any wheat in the process. Going too fast will either knock the wheat down or cut it poorly. Going too slow can cause the wheat to fall to the ground or not enter the combine correctly.- Check behind the the combine to ensure you are not losing grain. If you are losing grain, you are likely going too slow relative to your reel speed.
- Check your combine’s manual for optimal settings to reduce grain loss.
Set the rotor or cylinder speed to the minimum level for good threshing. This will minimize damage to seeds. This will need to be adjusted as the wheat crops change. This process is where the grain is separated from the straw.- Lower speeds will do less damage to the wheat.[1]
- Finding proper cylinder speed will take some trial and error. Be prepared to adjust in the field.
Set the concave at the widest setting possible to help with separating. Setting the correct rotor or cylinder speed will also ensure no grain is lost through separation.- The concave clearance must be set in order that it does not crack the grain. This will depend on the particular crop. If the grain is cracking, widen the concave.
- The combine will automatically separate and take the grain to grain tank.
Adjust the cleaning shoe. The cleaning shoe consists of the chaffer and cleaning sieve. Adjust it so that it is neither set too narrow or too wide. Consult the owner's manual for manufacturer's settings.- Higher volumes of grain require a wider setting on the sieve.
Set the fan. Be sure it is not set too low, or else the wheat will never make it to the back of the chaffer for it to drop through. Setting the fan too high will blow the light wheat right out of the shoe altogether.
Be attentive to the conditions around you. Successful harvest requires that you be aware of how the machine is interacting with the wheat. Be prepared to change settings, such as fan speed, as you go.- If a lot of wheat is on the ground as you go, it is a good sign that you need to adjust your settings.
Dump the grain. When the combine is full, dump the grain into a grain cart pulled by a tractor using the combine's unloader. Specific operation will depend on your combine model. Refer to the owner's manual if unsure. The tractor can make trips to and from the on site storage while the combine continues to operate in the field. The tractor dumps the grain cart onto a grain elevator, where it can be moved by conveyor belt to storage such as a grain silo.- It helps if you have a separate person driving the truck. The driver can take a shipment of grain back to he storage facility, while you going the harvest. This increases your efficiency.
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Clean your storage facility. In order to help prevent your grain from spoiling, ensure that the storage area is clean. Clean your storage facility before and after each use.- Sweep away old or spoiled grain. This will help prevent disease and pests from spreading.
- Spray insecticide inside and outside of bins. Use only approved pesticides; check local regulations.[4]
Dry the wheat. You will need to dry your grain after the harvest to ensure it can be safely stored.- Air drying leads to the highest quality wheat.
- You dry the wheat in bins, but be sure not to fill the bins completely.[5]
- Dry wheat at no more than 60 C.
Maintain a temperature of 5 C to 15 C where grain is stored. The higher the temperature, the faster the grain will spoil.- For high moisture grain, aerate in order to cool the grain quickly.
- Monitor the temperature and moisture using a thermometer and moisture meter to ensure proper levels are maintained.
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Expert Interview
Thanks for reading our article! If you’d like to learn more about gardening, check out our in-depth interview with Don Tipping.
References
Expert Q&A
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- QuestionHow is harvesting done?
Maggie MoranMaggie Moran is a Professional Gardener in Pennsylvania.
Home & Garden SpecialistIt used to be done with a scythe or sickle. Now it is done with machines on a larger scale. - QuestionHow is wheat threshed?Maggie MoranMaggie Moran is a Professional Gardener in Pennsylvania.
Home & Garden SpecialistIt is the separation of the edible part of the crop from the non-useful portions. It was done long ago by smashing the wheat against walls. Now it is done with strong vibrations inside the combine. - QuestionWhen is wheat ready to harvest?Maggie MoranMaggie Moran is a Professional Gardener in Pennsylvania.
Home & Garden SpecialistIt depends on the type of wheat. In the U.S., spring wheat can be harvested from the middle of August to the middle of September. Winter wheat is harvested between the middle of May until the middle of June.
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Tips
- When making adjustments for harvesting wheat, do one at a time.Thanks
- Try to cut the wheat all the same length for easiest harvesting.Thanks
- Early harvesting of wheat with artificial drying has benefits and produces high quality wheat.Thanks
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Warnings
- Waiting too long to harvest wheat can become costly.Thanks
- Harvesting wheat requires the operation of heavy machinery. Make sure that you are comfortable using the machinery before operating it alone.Thanks
- Harvesting wheat fields with weeds should be done last and cautiously, as to not spread the seeds of the weeds to other areas.Thanks
- Threshing can damage excessively dry or wet seeds.Thanks
- Weather can dictate when wheat can be harvested due to a warm or cool wet spring.Thanks
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Things You'll Need
- Combine
- Storage Facility
About This Article
Organic Farmer
This article was co-authored by Don Tipping. Don Tipping is an Organic Farmer based in Williams, Oregon. With almost 30 years of full-time experience with organic farming, Don owns and operates a mail-order seed company, Siskiyou Seeds, which is a bio-regional seed hub. He specializes in growing crops, including vegetables, flowers, medicinal and culinary herbs, and seed crops. Don is a member of the Organic Seed Alliance and has a Bachelor of Applied Science (BASc) from the University of California, Davis. This article has been viewed 177,023 times.
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Co-authors: 20
Updated: May 8, 2024
Views: 177,023
Categories: Harvest and Storage | Farming
Article SummaryX
If you’re growing wheat, you should harvest it when the moisture level is between 14-20%, which you can measure with a moisture meter. Once you’ve inspected your combine to ensure it’s working properly and adjusted it to the height of the wheat, drive it slowly through the wheat field to collect the wheat. When the combine is full, dump the wheat into a truck, then dry the wheat completely before storing it. To learn more from our Horticulturist co-author, like how to store the grain after you harvest it, keep reading the article!
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