From Seed
to Harvest
Background
Information
How
Are Field
Crops Planted?
Extension
Farming the
Farm
Crop Farming
Matchup
From Seed to Harvest
Farmers must make many decisions before planting a crop on
their farm. The most important decision is the crop to be planted. Farmers
generally rotate their crops. This means they plant one type of crop one
year and a different type the next. In other words they don't plant the
same type of plants two years in a row. A rotation helps control diseases
and insects by not providing a host crop for more than one year. Rotations
might be 3 or more years. An example of a crop rotation is cornsoybeanswheat
planted in succession.
The quality of the seed is the next consideration. There are many varieties
and hybrids of seed which the farmer has to select from each growing season.
No single variety is best suited for every soil or growing condition. Farmers
try to select varieties which will produce the highest yields. Most farmers
plant certified seed. This is seed that has been tested and is guaranteed
to have a high germination rate, few weed seed, and be free of plant diseases.
Before a farmer plants his crop he must decide how and when to till his
fields. Tilling or tillage means to prepare the soil and make a good seed
bed in which to plant the seed. Tillage normally begins after the last crop
is harvested. The farmer uses a disc that he pulls behind his tractor. The
disc mixes the stubble left over from the last crop with the soil. As this
stubble rots over the winter it provides nutrients, or plant food for the
next crop.
In the late winter, the farmer again plows his fields. This time he is destroying
any weeds or grass that might have grown during the winter. He may also
put out fertilizer, or plant food, that will help the crop grow. He wants
to make sure the seed bed is smooth and there are no big dirt clods in the
field. To do this he uses a disc, that he pulls behind his tractor. A harrow
follows the disc and finishes breaking up the clods and makes a fine seed
bed.
When there is no more danger of frost the farmer plants his seeds. He attaches
a planter, which he fills with seed, to his tractor. The planter places
the seeds into the soil at the right depth and spacing to provide the best
growth. Fertilizer may be applied at the same time to provide nutrients
to the crop as soon as the plants start to grow. The planter leaves enough
space between the rows of seeds so the farmer can pull a cultivator later
in the growing season. The cultivator remove weeds from between the rows
and helps aerate the soil. Row crops are generally cultivated two times
a year.
The rest of the season the farmer watches his fields for signs of disease
or harmful insects. If necessary, he may call an aerial applicator to fly
over his fields and apply the proper chemicals to control insects or diseases
that could damage his crop.
Many farmers, especially those in the drier areas of Texas,
use irrigation to supply water to their crops when needed. However, many
farmers depend on rainfall as the only source of water for their crops.
When it is time, the farmer harvests his crop with a machine called a combine.
The front part of the combine (the header) pulls the plants into a bar that
cuts them off. The combine then removes the grain from the stem and leaves.
The grain is temporarily stored in a hopper on the combine. The stems and
leaves are thrown back out on the ground. When the hopper on the combine
is full the grain is unloaded onto a truck which hauls it to a large storage
bin until the farmer is ready to sell it.
Adapted from Ohio Crop Production Steps Brochure




Harvesting the crop
with a
combine



