Harvesting Losses in Reaper Machines

60 to 150 hp

Cutter Bar Loss

To remove the ears from the standing stalks

<p>Header Loss is the loss of good grains shattered during cutting and transporting. It can be minimized by avoiding sharp turns while cutting and reducing cutting speed when harvesting shattering varieties.</p> Signup and view all the answers

<p>The power unit, with Pull-type being driven by a tractor and Self-Propelled being driven by an industrial engine</p> Signup and view all the answers

<p>Crop Damage Loss is the loss of unrecoverable good grains that are available from standing crops knocked down or damaged by the machine during cutting. It occurs when the harvesting machine damages the standing crop during the cutting operation.</p> Signup and view all the answers

<p>To remove the husk</p> Signup and view all the answers

<p>A Stripper Harvester strips the grain from the panicle using a combing action, without cutting the panicle. Its advantages include simplicity, ease of construction, and robustness of the rotor.</p> Signup and view all the answers

<p>Separating Loss</p> Signup and view all the answers

<p>A Combine Harvester heads the standing grain, threshes it, and cleans it as it moves over the field. It can harvest small grains, soybeans, grain sorghum, rice, and many others.</p> Signup and view all the answers

<p>A Pull-Type Combine is drawn by a tractor and powered through the power take-off shaft, whereas a self-propelled Combine Harvester has an auxiliary engine.</p> Signup and view all the answers

<p>A Combine Harvester simplifies the harvesting process by eliminating the need for a grain binder, header, stationary thresher, and stacking and hauling activities.</p> Signup and view all the answers

<p>Stiff stalks that stand up and do not break or lodge, suitable ear height and stalks, tough ear shanks, and hard shelling characteristics</p> Signup and view all the answers

<p>Timely harvesting reduces field losses.</p> Signup and view all the answers

<p>Shelling occurring at the snapping roll</p> Signup and view all the answers

<p>To pick up stalks that are down</p> Signup and view all the answers

<p>To facilitate easy harvesting and reduce losses</p> Signup and view all the answers

<p>It is desirable for snapping but not husking</p> Signup and view all the answers

<p>cotton stripper</p> Signup and view all the answers

<p>Double Roller and Multiple Finger or Comb-Type</p> Signup and view all the answers

<p>Plant characteristics, thickness of plant in row, cultural practices, pick-up fingers or limb lifters, design of stripping unit, conveying system, and rate of travel</p> Signup and view all the answers

<p>Provides more uniformity of feeding value from any part of silo</p> Signup and view all the answers

<p>Leaves no mud or contaminating soil bacteria on butts</p> Signup and view all the answers

<p>Permits filling the silo when the crop is at the right stage</p> Signup and view all the answers

<p>The purpose of a root harvester is to dig and separate the roots of the crop from the soil. Common applications of root harvesters are for potatoes, beets, peanuts, sweet potatoes, and many others.</p> Signup and view all the answers

<p>The formula to calculate the theoretical field capacity is 0.1 x header width (m) x machine velocity (kph). The factors that affect this calculation are the header width and machine velocity.</p> Signup and view all the answers

<p>Theoretical field capacity is the maximum capacity of a harvester, while effective field capacity is the actual capacity considering field efficiency. Effective field capacity is calculated by multiplying the theoretical field capacity by the field efficiency.</p> Signup and view all the answers

<p>The formula to calculate the power requirement is specific draft x number of rows or specific power x header width. The factors that affect this calculation are specific draft, number of rows, and header width.</p> Signup and view all the answers

<p>Effective field capacity = 0.1 x 6 x 2.5 x 0.9 x 0.7 = 0.945 ha/h. Harvesting rate = 100 kg/min x 60 min/h = 6 tons/h. Harvesting rate per hectare = 6 tons/h / 0.945 ha/h = 6.35 tons/ha.</p> Signup and view all the answers

<p>Theoretical field capacity = 0.1 x 2.5 x 5 = 1.25 ha/h. Field capacity = 1.25 ha/h x 0.8 = 1 ha/h.</p> Signup and view all the answers