BEIJING, March 21 (Reuters) - Russian President Vladimir Putin said after talks with Chinese leader Xi Jinping on Tuesday that Chinese proposals could be used as the basis of a peace settlement in Ukraine, but that the West and Kyiv were not yet ready.

In a joint statement at the end of Xi's state visit to Moscow, the two men cautioned against any steps that might push the Ukraine conflict into an "uncontrollable phase", adding pointedly that there could be no winners in a nuclear war.

Putin accused Western powers of fighting "to the last Ukrainian", while Xi reiterated China's "neutral position" on Ukraine and called for dialogue.

"We believe that many of the provisions of the peace plan put forward by China are consonant with Russian approaches and can be taken as the basis for a peaceful settlement when they are ready for that in the West and in Kyiv. However, so far we see no such readiness from their side," Putin said.

China's proposal - a 12-point paper calling for a de-escalation and eventual ceasefire in Ukraine - lacks details on how to end the war.

The United States has been dismissive of the Chinese proposal, given Beijing's refusal to condemn Russia over Ukraine, and says a ceasefire now would lock in Russian territorial gains and give Putin's army more time to regroup.

Ukraine has welcomed China's diplomatic involvement but says Russia must pull out its troops and underlines the importance of Ukraine's territorial integrity.