Modern research showed the correct number of millet seeds greatly exceeded surviving examples of the zhu in weight, until one tried growing older millet strains for several generations without modern agrochemicals. By the third year, his seeds produced a zhu within about 5% of its known historical value.
Transcriptions of Mandarin into the Latin script often do not distinguish between the critical tonal differences employed in the Mandarin language, using words such as this one without indication of tone.