A combine harvester cuts down a crop, separates the seed from the plant material and stores the clean grain in a tank for transport or offload to another storage device. The combine is a self-propelled machine that is used by farmers to speed up the process of harvesting.Continue Reading
A combine harvester is used to remove mature crops from a field when they are ready to be harvested. The combine has an attachment on the front, called a header, that is determined by the type of crop being harvested. The header is the portion of the combine that actually cuts the plant. The header then moves the plant up the throat and into the combine itself.
Once the plant has been moved out of the header throat, it is pushed into a threshing cylinder, which is used to separate the grain from the plant. The grain and plant material are passed through the combine over sieve beds. The sieves allow the grain to fall through while moving plant material toward the back of the combine. The clean grain that falls through the sieves is moved by clean grain elevators, augers or air delivery into the grain tank. The plant material is ejected out the back of the combine.Learn more about Agriculture
To process wheat, farmers harvest the crop, cut the heads off the tops of the plants, thresh the wheat plants to separate the grains from the chaff, separate the grains from other plant fragments, and clean the grains. Workers transport the grain to a mill for separation of the bran, endosperm and germ, if desired.Full Answer >
Fertilizer increases plant growth and crop yields but often contains toxic compounds harmful to people, wildlife and plants. According to SFGate.com, synthetic fertilizers leach into reservoirs or the local water table and cause serious health problems in young children, infants, the elderly and those with compromised immune systems. Fertilizer runoff also disturbs the critical algae balance crucial to aquatic food chains.Full Answer >
A John Deere combine first gathers crops at the front of the machine using crop dividers. The reel moves the crops to the cutter, where the cutter bar's teeth remove the crops from their base. The machine then moves the crops by spinning augurs to a conveyor, which travels to the center of the combine; there, a threshing drum breaks up the crops and removes the grains from their stalks. Grains fall into sieves and are collected in a tank.Full Answer >
When grain-filled trucks stop on the grain elevator's scales, the trucks are weighed, and then they dump their grains into the grain elevator's pit; the grain moves upward to the elevator's cupola via a belt with attached buckets and is directed into a bin via spouts. The truck then drives back across the scales and is reweighed to determine how much the load weighed.Full Answer >