The science of cultivation of land and production of grains and other food crops on a large scale is known as:
Agriculture
The science of cultivation of land and production of grains and other food crops on a large scale is known as agriculture. Cultivation and farming are both parts of agriculture. Cultivation deals with the preparation of soil for agriculture. Farming is a more individual practice involving an area of land with buildings on it (as well as fencing, water facilities, etc.) that is used to grow crops and/or rear animals for human consumption.