Nothing but summer Fallowing, thoroughly applied and regularly followed, can remedy this.
"Two Years in Oregon"
Wallis Nash
This practice is called "Fallowing," and is very ancient; it is much less common now that crops like mangolds and swedes are grown, which can, if necessary, be hoed all the summer.
"Lessons on Soil"
E. J. Russell
Fallowing, Huey called it.
"Land of the Burnt Thigh"
Edith Eudora Kohl