(Mishnah): If one buries bundles of turnip or radish under a vine (for storage), if their leaves are partially visible, there is no issue of Kilayim, Sheviis or Maaser and they may be taken out on Shabbos. (Since he left the leaves partially visible, he showed that he wasn't planting them.)

If one plants wheat and barley together, it is Kilayim.

(R Yehuda): They are only Kilayim if he planted two wheat seeds and a barley seed, one wheat seed and two barley seeds, or one wheat, one barley and one spelt seed

(Chizkiyah): The Mishnah only taught turnip and radish, but for other vegetables, the leaves don't need to be partially visible.

(R. Yochanan): No, the same rules apply to all other vegetables.

Question: What's the case? If the prohibition here is planting seeds next to a tree, why specifically teach about a vine? It would equally apply to all other trees! If it's teaching that it's permitted because he doesn't want them to take root, it would apply to all seeds, not just radishes...?

Answer: From the teaching of R. Chiya, that he permitted (only) a bundle of turnips and a bundle of radishes, it shows that it's permitted because he doesn't want them to take root.

Baraisa: An unripe fig that was buried inside straw to ripen and a cake that was hidden inside coals (both straw and now extinguished coals are Muktzeh on Shabbos) - if they are partially visible, they may be taken out on Shabbos; if not, they may not be taken out.

(R. Elazar ben Tadai): Either way, he may insert a skewer or knife into them and remove them.

R. Elazar ben Tadai follows R. Shimon of the Baraisa...

(Baraisa): One may not drag a chair, a bed or a soft seat (across mud) as it might create a furrow. R. Shimon permits it.

(Rava citing Rav Huna/ R. Chaggai citing R. Zeira/ R. Yosi citing R. Hila): The Chachamim agree with R. Shimon that when the chair has its legs embedded in the mud, he may carry the chair and just as it's permitted to take the chair out of the ground, because their holes are already there, it's permitted to put it back into the ground.

(R. Yosef): We have also learned in our Mishnah that it is permitted to take it out (and there is no problem of making a hole). (Our Mishnah taught that when the leaves are partially visible, it may be taken on Shabbos.)

(R. Yosi bei R. Bun): The Mishnah follows the view of R. Shimon (that since it is unintended, it is permitted).

Question: How could the Mishnah follow R. Shimon - the Mishnah taught that the problem of Sefichin (Sheviis produce that grew naturally) does not apply because he had merely stored it in the earth. But according to R. Shimon, Sefichin are always permitted?

Answer: Even though R. Shimon permits the use of Sefichin of Sheviis, they still have the sanctity of Sheviis - but in the Mishnah, they don't even have the sanctity of Sheviis.