How crops are grown?

Nature does most of the work in this area. Nature provides soil, moisture, light and warmth (both in the air and the soil) that encourages seed germination and plants to grow. Farmers spray their crops to rid them of weeds and other pests once, twice or thrice a year. Once the crops reach the stage of maturity (again, thanks to Nature), they are harvested using combine harvesters and threshing machines.