What are the various losses in a combine harvester?

Expected range of losses: Losses, with the best combine adjustments, will vary greatly depending upon the type’s variety and the condition of the crop. Total losses in clean crop of wheat oats and barley will vary from 1% to 4% of total yield. Under good harvesting condition the total loss should not be more than 1.5%.

What was the impact of the combine harvester?

After it did become the dominant harvesting method, it revolutionized the way the world ran. It was successful because it made farming safer, more profitable, and brought food to many.

What is acceptable combine loss?

What is an acceptable amount of loss? It is not reasonable to expect that a combine is going to be 100 percent efficient in all crops and conditions. Typically around 1 to 2 percent loss should be achievable regardless of the type of combine you have or the crop condition you are in.

How do you calculate combined grain loss?

Field losses can be determined by counting the kernels or seed left in the field after harvest. This is normally done by counting the kernels or seed in a 10 square foot area across the swath width of the combine.

What is header loss?

In other words, this loss occurs when the header is operated improperly or when the crop tends to shatter easily. Each type of header has operating characteristics which can cause losses.

What is reel index of combine harvester?

In general, a reel index of 1.7 would be the ideal for minimum header losses as well as an acceptable field capacity and field efficiency for both types of combine harvesters. The combine harvester reel and the parameters that are relevant to the analysis of its motion (modified from Oduori et al., 2012).

How did the combine make harvesting more efficient?

Without leveling, grain and chaff slide to one side of separator and come through the machine in a large ball rather than being separated, dumping large amounts of grain on the ground. By keeping the machinery level, the straw-walker is able to operate more efficiently, making for more efficient threshing.

Why is a combine harvester called a combine?

A combine harvester or ‘combine’ got its name because the machinery combines three harvesting operations – reaping, threshing, and winnowing – into a single process.

What is acceptable canola loss?

The Canola Council’s goal is for an average threshing loss of two per cent (or less) of total yield across the Prairies.

How do you calculate corn head loss?

Count the number of whole ears lost in 1/100 of an acre. In 30-inch rows, look for ears in 174 feet. Each three-quarter-pound ear or equivalent left behind equals 1 bushel per acre of loss.

How do you calculate yield loss?

Calculating Yield Loss The difference between the expected yield resulting from a reduced rate and is the expected yield reduction. This reduction can also be expressed as a percent loss, relative to the expected yield, by dividing the reduction by the expected yield and multiplying by 100%.

What is pre-harvest loss?

Pre-harvest losses occur before the process of harvesting begins and may be due to insects, weeds and rusts. Harvest losses occur between the beginning and completion of harvesting, and are primarily caused by losses due to shattering. Post-harvest losses occur between harvest and the moment of human consumption.

How much fuel does a combine use an hour?

If running 60% to 70% engine load it will be in the 14 – 15 gallon/hr, if pushing hard and running around 90% load it will get up to 17 – 18 gallon/hr.

How much fuel does a combine harvester use?

On average, one combine harvester uses more than 8 t year−1 of diesel fuel, i.e., approximately 37 kg h. Maximum fuel consumption recorded in the database is 19.4 t year−1 (roughly 47.8 kg h−1)

What are the 3 main functions of a combine harvester?

Combine Harvester commonly known as ‘combine’ is a key invention that saves cost and time for farmers. Like the name suggests, this machine simply combines the three major harvesting operations – reaping, threshing, and winnowing into a single process.

How fast can a combine harvest?

4 mph is a good speed for all around harvest. But if the combine will handle 6 and ur not loading the machine to much or lossing to much… go for it.

What is acceptable harvest loss in corn?

In-field checks suggest that loss due to machine harvest should be no greater than one bushel per acre if corn is standing reasonably well. Be particularly aware of dropped ears as hundreds of kernels are lost in a single ear drop.

What is yield loss?

Yield loss (YL), or damage (Zadoks,1985), represents the difference between the attainable and the actual yield; that is, the yield lost from pests’ injuries. Yield loss can be associated to individual pests as well as to multiple pests.

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