Why do farmers do not plow their fields?
Most farmers don’t actually ‘plow’ their fields. They either use conservation tillage methods or do not till the soil at all. Traditional plowing by definition turns up bare soil and buries all plant residue leaving soil vulnerable to wind and water erosion.
How are glaciers related to erosion and deposition?
Glaciers are solid ice that move extremely slowly along the land surface (Figure below). Glacial ice erodes and shapes the underlying rocks. Glaciers also deposit sediments in characteristic landforms.
What happens when ice breaks away from the tidewater glacier?
Chunks of ice at the edge of the tidewater glacier break away into the water—a process called calving. Calving is a violent process. It results in large waves and loud crashes.
What causes cracks on the surface of a glacier?
When a glacier moves rapidly around a rock outcrop, flows over a steep area in the bedrock, or accelerates, or over a steep area in the bedrock, internal stresses build up in the ice. These stresses can cause cracks, or crevasses, on the glacier surface.
Why does my Chevy plow not stay up?
My chevy has the same problem. If the cylinder was leaking down due to the internals being worn (not packing) it would result in oil being discharged from the vent when you raise the plow.
What causes a plow to drop from the top?
If oil gets past the seal into the vented side it will be forced out the vent so you will see oil on the cylinder. If the packing was leaking the plow would leak down faster than that AND there would be obvious leaking on the lift cylinder (the packing is at the top of the cylinder body).
Why do you need to plow in the winter?
Deep plowing enlarges the moisture reservoir and gives more root room—see article. Late fall and winter plowing destroys weeds and many insects. When a green crop or heavy coat of manure is to be turned under, plow early so the organic matter will have time to decay and the soil to become settled before seeding.
Why is oil coming out of my plow?
In order to function the reactive portion of the cylinder (on the other side of the piston seal) must be vented lest on lift there would be pressure built up and blow the cylinder seals out and vacuum lock on float. If oil gets past the seal into the vented side it will be forced out the vent so you will see oil on the cylinder.