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On the go NIR moisture meter for combines

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Published: May 12, 2022

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Next Instruments has released a new version of the CropScan 3000H On Combine Analyser specifically for measuring corn. | Screencap via cropscanag.com

New Holland was the first manufacturer in the world to offer farmers OEM, near infrared, or NIR, moisture metering and nutrient content in real time, while the crop is still in the combine.

NIR sensors on CR and CX combines continuously register a large number of parameters including humidity, protein and starch. This provides the operator with the opportunity to continuously classify grain on-the-go. With this information, the operator can decide where the grain is to be stored according to the demands in a specific supply contract and grain condition.

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Next Instruments has released a new version of the CropScan 3000H On Combine Analyser specifically for measuring corn. According to their website the device measures protein, oil and moisture in grains and oilseeds.

Coaxing high moisture corn to flow consistently over the sensor has been a problem. The new CropScan 3000H has a modified flow cell making it easier for the corn up to 25 percent moisture to flow down through the sample head.

The benefit to corn producers is precise measurement of the nitrogen taken from the soil in the form of protein in the corn kernels.

Proteins contain about 17 percent nitrogen by weight. Every bushel or tonne of corn harvested contains about 0.7 pounds or 12.8 kilograms nitrogen based on a protein level of eight percent.

Protein and yield data provide the base for a nitrogen removal map. This map is used to develop variable rate nitrogen fertilization prescriptions.

The results can optimize yields and reduce fertilizer use.

The CropScan 3000H is calibrated for wheat, barley, canola, sorghum, oats, lentils, peas, soy beans and lupins.

Another proven moisture tester technology used on commercial grain dryers for the past five years has been upgraded.

Developed by DMC, the Calc-U-Dri’s stainless steel sensor mounts near the top of the clean grain auger. The sensor is mounted to a metal fin extended into the auger. As grain passes the sensor, it reads moisture using electrical resistance.

It sends a reading to a control box in the cab, which can be set to give an audio or visual alarm when moisture reaches a preset limit.

Farmers can use the technology to pre-sort their crops by harvesting damper and drier material separately or chose to blend it on the go.

Calc-U-Dri sells for $1,200.

About the author

Ron Lyseng

Ron Lyseng

Western Producer

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