Blooming rapeseed field with tree

Aerial view of a solitary tree in a yellow rapeseed field, tractor tracks curve around the green tree near Dietendorf, Burgebrach, Bamberg, Upper Franconia, Bavaria, taken on May 16, 1997.  

The rapeseed field glows in a rich yellow in mid-May, about two months before it is harvested. Rapeseed is an economically important crop used primarily for the production of rapeseed oil. A positive by-product is rapeseed cake, a popular animal feed. By the way: fields with yellow flowers in late summer and autumn are also often mistakenly referred to as rapeseed. However, these are usually the distantly related white mustard.  

(High Above Bavaria, page 179)