The field of agriculture is very wide. Agricultural production entails all aspects of crop and animal production. Through the ages, agricultural production has evolved greatly to encompass modern technologies that improve production. As a result, production has become more intensive in terms of specialization and inputs. For those interested in pursuing careers in agriculture, there are many options available. A good place to begin would be to select between the three majors; animal, crop or environmental sciences. This can further be divided into options like the study of the different species of plants and animals; their interaction with one another and effects on the environment.I found some more information here.
The aim of agricultural practices is to improve food production for mankind and at the same time maintain a proper balance in the environment. The mainstay of the agricultural profession is the farmer who implements d modern practices. Farming should not be viewed as a backward profession reserved for the uneducated. Modern farming involves merging technology and production practices to improve production. The trend has seen a shift from sedentary farming to large scale production supported by highly mechanized equipment. A basic knowledge of science is therefore required to enable one undertake farming with understanding.