《吕氏春秋·论·士容论》
种法不同，茎秆数量相等，称一称，种植适时的分量重；脱了粒，种植适时的打粮多。
茎相若，称之，得时者重，粟之多。
With different planting times having identical quantity, the weight of the timely planted ones will be heavier; after threshing, the timely planted ones will have more grain.