Reference for Bava Metzia 9:1
הַמְקַבֵּל שָׂדֶה מֵחֲבֵרוֹ, מְקוֹם שֶׁנָּהֲגוּ לִקְצֹר, יִקְצֹר, לַעֲקֹר, יַעֲקֹר, לַחֲרשׁ אַחֲרָיו, יַחֲרשׁ. הַכֹּל כְּמִנְהַג הַמְּדִינָה. כְּשֵׁם שֶׁחוֹלְקִין בַּתְּבוּאָה, כָּךְ חוֹלְקִין בַּתֶּבֶן וּבַקַּשׁ. כְּשֵׁם שֶׁחוֹלְקִין בַּיַּיִן, כָּךְ חוֹלְקִין בַּזְּמוֹרוֹת וּבַקָּנִים. וּשְׁנֵיהֶם מְסַפְּקִין אֶת הַקָּנִים:
If one accepts a field from his neighbor [in arisuth (tenant-farming), to give (to the owner) a half, a third, or a fourth (of the yield), or in chachiruth (rental), for so many and so many korin a year], in a place where the custom is to cut (the grain), he cuts it; to uproot, he uproots; to plow after it, [after the cutting or the uprooting, in order to overturn roots of bad grasses in it and kill them], he plows after it — all according to the custom of the land. Just as they divide the grain, so they divide the straw and the stubble. Just as they divide the wine, so they divide the shoots and the (vine) staves. And both supply the staves. [This is the reason (for what precedes), i.e., Why is it that they divide the staves? Because both supply the new staves each year.]