Sentence:  Almost all the rustic writers agree in this, that <WSD>far</WSD> is most proper for wet clay land, and triticum for dry land. 'In wet red clays,' says Cato, 'sow <WSD>far</WSD>; and in dry, clean, and open lands, sow triticum.' 
Meaning of the word marked with <WSD> tags:  Spelt (a type of wheat, "Triticum spelta"), especially in the context of Roman use of it.