"of the first": even one cluster, even one fig, (there being no minimum requirement.)
"of all the fruits": You bring fruits as bikkurim, but not wine and oil. It he brought grapes and trod them (into wine), whence is it derived that it is valid? From "that you bring" (in any event).
"that you bring from your land": so long as they are found on the face of the land. I might think he may bring them before Shavuoth, it is, therefore, written (Shemoth 23:16) "And the feast of the harvest (Shavuoth) of the first-fruits of your work." From when do you bring? From Shavuoth until Channukah. I might think that you recite (the bikkurim formula) whenever you bring them; it is, therefore, written (Devarim 26:11) "and you shall rejoice": There is recitation only at the time of rejoicing, which implies: From Shavuoth until Succoth, one brings and recites; from Succoth until Channukah, one brings but does not recite. R. Yehudah b. Betheira says: He brings and recites.