Wheat, flags (UNO New York 1976)

First Day Cover Wheat, flags it reflects the thematic directions:

A crop is a plant that can be grown and harvested extensively for profit or subsistence. In other words, crop is a plant or plant product that is grown for a specific purpose such as food, fibre or fuel.

When plants of the same species are cultivated in rows or other systematic arrangements, it is called crop field or crop cultivation.

A flag is a piece of fabric (most often rectangular or quadrilateral) with a distinctive design that is used as a symbol, as a signaling device, or as decoration. The term flag is also used to refer to the graphic design employed, and flags have since evolved into a general tool for rudimentary signalling and identification, especially in environments where communication is similarly challenging (such as the maritime environment where semaphore is used). National flags are patriotic symbols with varied wide-ranging interpretations, often including strong military associations due to their original and ongoing military uses. Flags are also used in messaging, advertising, or for other decorative purposes. The study of flags is known as vexillology, from the Latin word vexillum, meaning flag or banner.