Can it be improved in any way or clarified somehow before reopening?
User @Swapnil actually made a sound edit, changing "rice" to "mind", but OP rejected the edit.
Is it on-topic (related to Buddhism)? Isn't this (Masuro Emoto's conjectures and experiments) considered "pseudo-science", and can it be worthwhile to associate that with (or to address it in the context of) Buddhism?
The question might not be within the scope of this SE. It might be considered off-topic since Buddhism does not teach any of it.
The scientific community has not even validated Masuro Emoto's experiments due to insubstantial proofs and failing to give details about his approach:
Commentators have criticized Emoto for insufficient experimental controls and for not sharing enough details of his approach with the scientific community. William A. Tiller, another researcher featured in the documentary What The Bleep Do We Know?, states that Emoto's experiments fall short of proof, since they do not control for other factors in the supercooling of water. In addition, Emoto has been criticized for designing his experiments in ways that leave them prone to manipulation or human error influencing the findings. Biochemist and Director of Microscopy at University College Cork William Reville wrote, "It is very unlikely that there is any reality behind Emoto's claims." Reville noted the lack of scientific publication and pointed out that anyone who could demonstrate such a phenomenon would become immediately famous and probably wealthy.
Writing about Emoto's ideas in the Skeptical Inquirer, physician Harriet A. Hall concluded that it was "hard to see how anyone could mistake it for science". Commenting on Emoto's ideas about clearing water polluted by algae, biologist Tyler Volk stated, "What he is saying has nothing to do with science as I know it."Stephen Kiesling wrote in Spirituality & Health Magazine, "Perhaps Emoto is an evangelist who values the message of his images more than the particulars of science; nevertheless, this spiritual teacher might focus his future practice less on gratitude and more on honesty.
Emoto was personally invited to take the One Million Dollar Paranormal Challenge by James Randi in 2003, and would have received US$1,000,000 if he had been able to reproduce the experiment under test conditions agreed to by both parties. He did not participate.
In its current format, I don't think this question should be reopened, due being pseudo-science, possibly off-topic, primarily opinion-based and of low-quality.
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The most visible internal inconsistency of the question is that it asks about a hypothetical result and based on that, whether or not Buddhism gives an explanation for it:
"In case this works, is there a Buddhist explanation to it?"
"In the case it works" is a huge inconsistency, since Masuro Emoto himself has not even been able to provide proofs to his experiments, thereby leaving them invalidated and as merely superstition.
Asking for a Buddhist explanation to an experiment that might work or might not work is just too vague, hypothetical and non-practical.