《天工开物·上篇·乃粒》
绿豆播种后，如果在当天遇上了大雨，土壤板结后，就长不出豆苗来了。
凡种绿豆，一日之内遇大雨扳土则不复生。
After the green beans are sown, if it rains heavily on the same day and the soil becomes compacted, the bean sprouts will not be able to grow.