verb (used with object), top-dressed or top-drest, top-dress·ing.
Examples from the Web for top-dress
In fall, top-dress the Lawn with commercial fertilizer at the rate of 500 pounds to the acre.The Practical Garden-Book|C. E. Hunn
After this I top-dress heavy with manure, leaving it lie on the land until spring.Asparagus, its culture for home use and for market:|F. M. Hexamer
You may leave them undisturbed for years, but if you can top-dress them in autumn so much the better.The Children's Book of Gardening|Mrs. Alfred Sidgwick