According to the operator, prior to the aerial application flight, the airplane was refueled to a maximum of 114 gallons and the hopper was filled with 250 gallons (335 gallons maximum) of chemical. The pilot departed to the south on the 1/2 mile private dirt airstrip. During the initial takeoff climb, the airplane impacted corn stalks located at the end of the airstrip. Subsequently, the airplane cart-wheeled and came to rest in the field. The operator reported the temperature was approximately 80 degrees Fahrenheit and the winds were at "few knots from the northeast." The commercial pilot, sole occupant on board, sustained minor injuries. Examination of the airplane revealed the wings were bent, one main landing gear was separated, and the fuselage was buckled. The calculated density altitude was 6,620 feet mean sea level (msl).