Sentence:  Last spring, after I planted, I took what ashes I have saved during the last year, and put on my corn .... On harvesting I cut up the two rows which were not <WSD>ashed</WSD> (or twenty rods of them,) and set them apart from the others in stouts; and then I cut up two rows of the same length, on each side, which had been <WSD>ashed</WSD>, ... 
Meaning of the word marked with <WSD> tags:  To cover newly-sown fields of crops with ashes.