Commentaire sur Chroniques 2 31:5

And when the word burst forth from the king’s mouth to give a portion to the priests and the Levites, the Children of Israel increased the first of corn, wine, oil, honey date honey.

and all the increase of the field But all these [aforementioned] are not of the grain of the field, but so it is explained in Tractate Nedarim, in the chapter, “Whoever vows [to abstain] from herbs, is permitted to partake of pumpkins,” (55a): Rav Josef questioned: “And when the word burst forth, the Children of Israel increased, etc.” Now if you say that all these [i.e., all plants that are stacked up] are included in the term דָּגָן, what is the meaning of “when the word burst forth”? Replied Abbaye: This is to include fruit of trees and vegetables....Replied Rava: תְּבוּאָה (grain) is one thing, and תְּבוּאַת שָׂדֶה (increase of the field) is another.