Agricultural Machineries Flashcards
Initial cutting, breaking and usually inversion of the soil,soil depth of 6 in to 36 in.often referred as plowing
Primary Tillage
Subsequent breaking, pulverization and leveling of the soil making it ready for planting.Often referred as harrowing
Secondary Tillage
Combined primary and Secondary tillage in one operation.Often referred to as rotavating
General-purpose tillage
Unplowed soil
Land
Soil cut,lifted, inverted and thrown to one side of the plow bottom
Furrowslice
Trench or canal left by the furrowslice
Furrow
Raised ridged when two furrowslice overlap each other
Backfurrow
Trench left equal to two furrows when furrowslice are thrown on opposite sides
Deadfurrow
Unbroken side of the furrow
Furrow wall
One of the oldest and the most important equipment for land preparation.It cuts the soil to a depth of 6” to 18”.
Moldboard plow
Provides the cutting edge of the plow bottom.
Share
Receives the furrowslice from the share;lifts, inverts and throws it to one side of the plow bottom
Moldboard
Counteracts the side pressure exerted by the furrowslice on the plow bottom.
Landside
Bend downward of the point of the share to make plow penetrate the soil to the proper depth
Vertical clearance
Bend outward or sideward of the point of the share towards the unplowed land to make the plow cut the proper width.
Horizontal clearance
It was developed in an effort to reduce friction in the sliding moldboard plow bottom by using a rotating disc plow bottom.
Disc Plow
Round and concave disc of heat-hardened steel with sharpened edges to cut the soil.
Disc
Curved plate placed on the concave side of the disc to scrape off the soil and throw it on one side of the plow bottom
Scraper
Rear wheel that presses against the furrow wall to resist the side exerted by the soil against the plow
Rear furrow wheel
