The objectives of farm mechanization include the following except to

The objectives of farm mechanization are the goals or aims that are intended to be achieved through the use of farm machinery. These objectives include increasing farm yield, performing farm operations quickly and more efficiently, and improving the quality of farm produce. However, the option "produce disease-resistant crop varieties" does not relate to the objectives of farm mechanization because it is concerned with the development of crop varieties that are resistant to diseases, which is a function of plant breeding and genetics, and not farm mechanization. Therefore, the correct answer is option D, "produce disease-resistant crop varieties".