As the author of Tiangong Kaiwu, Song Yingxing had very high attainments in agriculture. He had long known that potatoes, corn, and sweet potatoes were more suitable for farming in the north. However, he was only a petty official at first and had resigned, so he did not have the right to submit a memorial. And even if he did, no one would pay attention to him, so there was nothing he could do in his hurry....
本网站所有内容均收录于互联网相关站点，本站不提供影片资源储存也不参与录制与上传，若本站收录内容侵犯了您相关权益，请给我们留言，我们将及时进行处理。
