《天工开物·上篇·乃粒》
大豆播种后没发芽之时，要防避鸠雀祸害，这时就得有人去驱赶。
凡大豆入土未出芽时，防鸠雀害，驱之惟人。
When the soybeans are not germinating after sowing, they must be protected from the damage of pigeons and sparrows, and someone must be sent to drive them away at this time.