How is it that crop yields increased in the decades after world war 2?

Crop yields increased in the decades after World War II primarily due to advancements in agricultural technology, such as the development of high-yielding varieties of crops, the widespread use of chemical fertilizers and pesticides, and improvements in irrigation techniques. The Green Revolution played a crucial role, introducing these innovations, particularly in developing countries. Additionally, mechanization of farming processes enhanced efficiency and productivity, allowing farmers to cultivate larger areas and produce more food. These factors combined to significantly boost agricultural output during this period.