We now have software which can tell us the exact pattern of light intensity on any patch of the Earth’s surface, at any time in the future (not counting rapid urban developments and local weather behaviour, of course).
Today’s invention uses this program to allow farmers to estimate the statistically best locations for various different crops on their land.
As crops become increasingly genetically engineered to be diverse, and thus ward off disease, so their responses to sunlight may vary more. This software can take all these behaviours into account, so that the land area is much more nearly optimised for crop yield.
Traditional field boundaries may need to be altered to reflect light intensity distribution. Brighter farms might well become significantly more valuable than darker ones.
The same approach could also appeal to gardeners and allotment holders.