The plant cultivation technique of ______________________________ involved cutting down the forests and then burning the underbrush to help fertilize the soil.

Plant Cultivation

The process of growing plants in a controlled environment, optimizing their development and yield.

Fertilize

The act of adding nutrients to soil or directly to plants to promote growth and increase yields, often involving substances like compost or chemical fertilizers.

Soil

The top layer of the earth's surface, composed of organic matter, minerals, gases, liquids, and organisms, supporting plant life.