早上种土豆用英语可以说作 "plant potatoes in the morning" 或 "planting potatoes in the morning".

土豆是一种谷物作物,原产于南美洲的安第斯山脉地区。土豆在英语中通常被称作 "potatoes".

下面是一些例句及其中文翻译:

I always plant potatoes in the morning because the soil is moist and the weather is cooler. (我总是早上种土豆,因为土壤湿润,天气也凉爽。)
My grandfather used to wake up early to plant potatoes in the garden. (我祖父过去常常早起种土豆。)
I need to buy some seed potatoes to plant in the morning. (我需要买些苗圃土豆种在早上。)