This text investigates the technical requirements, environmental variables, and management practices necessary for the successful cultivation of field crops within the diverse Australian climate. The authors, Alec Lazenby and E. M. Matheson, draw upon agricultural science and regional agronomic data to provide a comprehensive framework for crop production. The book serves as a technical manual for understanding the physiological and economic factors that dictate agricultural output in the Australian landscape.

The subject matter points to a dense, specialist text intended for agricultural students, researchers, and professional producers seeking a foundational understanding of mid-20th-century Australian agronomy. The framing suggests a rigorous, data-driven approach that prioritizes technical accuracy and regional specificity over general agricultural theory.