《农桑辑要·栽桑柘附·布行桑》
等到来年春天，桑条上的冬芽萌动的时候，连根掘起，栽植到大田中，行距宽八步，株距相去四步，树与树对直栽植。
至来春，桑眼动时，连根掘来，于漫地内，阔八步一行，行内相去四步一树，相对栽之。
When the winter buds of mulberry branches begin to sprout in the spring of next year, dig up the roots and plant them in a large field. The row spacing is 8 steps, and the plant spacing is 4 steps. Plant the trees in straight lines.