By Tadayoshi Watanabe, Tatsuo Ogo, Hiroshi Kurihara, and Kazumi Maeda. Nogyo Kyodo Kumiai (Agricultural Cooperative Association). 1980. 2000 yen at the time. This is a classic textbook on crop science that I used in my undergraduate studies. As shown in the images, there are notes written on several pages, so please be aware of this. Thank you.