The laws of salting on Yom Tov slightly differ from the laws of Shabbos. The following is the general rule:

Salting many foods at a time:^[1] Initially, if doing so will not cause even a slight loss, it is proper to not salt more than one vegetable at a time, just as is the law on Shabbos, unless one adds oil to the mixture right away. If following the above will lead to even slight loss, it is permitted to salt salads on Yom Tov without restriction, in whichever way one desires.

Leaving salt on food:^[2] There is no restriction against salting food on Yom Tov and allowing the salt to change the

Making the salt water on Yom Tov if forgot to do so beforehand:^[3] Some Poskim^[4] rule it is permitted to make salt water on Yom Tov without restriction. Other Poskim^[5], however rule that it contains the same restrictions as making salt water on Shabbos [see next]. Practically, one is to initially prepare the salt water before Yom Tov, and if one forgot to do so, then he is to make it on Yom Tov using a Shinuiy, such as to first put in the water and only then the salt.^[6]

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[1] Admur 510:15

[2] Implication of Admur ibid; Taz 510:10; Nitei Gavriel 13:4

[3] See Piskeiy Teshuvos 473:14

[4] Implication of Admur 473:19 who only conditions the saltwater making regulations to when Pesach falls on Shabbos; Misgeres Hashulchan 118:4 that so is implication of Admur 473:19 and all Poskim in next footnote who only mention the conditions regarding when Yom Tov falls on Shabbos

[5] Siddur Yaavetz Dinei Hachanas Seder; Poskim in Nitei Gavriel [Yom Tov] 13:10; Misgeres Hashulchan 118:4 concludes that even on Yom Tov one should initially abide by the conditions followed on Shabbos, to make a very miniscule amount just enough for the dip; See Admur 510:15 for a dispute regarding if the salting prohibition applies on Yom Tov in which Admur concludes “It is good to suspect for their opinion if there is no loss in the matter”; See Piskeiy Teshuvos ibid footnote 84

[6] Chayeh Adam 130:19; Kitzur SHU”A 118:4