פירוש על בבא בתרא 55:5

In what is this statment - that 18 months is needed for the field of the house owner.

In the white field - That all its fruits are collected at once, therefore 3 years is needed.

But in a field of the trees - that their fruit is collected in parts, grapes in one part, and olives in another part, and figs in another part.

Brings in his crop - (Bring in the) wine of the vine.

And cuts (harvests) his olives and gathers in his dried figs - figs plucked and dried in it (in the field), and spread out (for the sun) and brought in to the house. Behold this is Chazaka like if it has been three years.