| Hagarebyoo no boojo shiken (1990) ([Preventing leaf blotch (1990)])
| Kawanabe, Yukito. 1991. Nishinihon Guriin Kenkyuu Hookoku [Research Report of NGRI]. 22: p. 56-59.
| More | 223423 |
| Buraunpacchi no boojo shiken (1990) ([Preventing brown patch (1990)])
| Kawanabe, Yukito. 1991. Nishinihon Guriin Kenkyuu Hookoku [Research Report of NGRI]. 22: p. 60-61.
| More | 223424 |
| Sabibyoo no boojo shiken (1990) ([Preventing rust disease (1990)])
| Kawanabe, Yukito. 1991. Nishinihon Guriin Kenkyuu Hookoku [Research Report of NGRI]. 22: p. 62-63.
| More | 223425 |
| Haruhageshoo no boojo shiken (1989-1900) ([Preventing spring bald spot (1989-1900)])
| Kawanabe, Yukito. 1991. Nishinihon Guriin Kenkyuu Hookoku [Research Report of NGRI]. 22: p. 64-65.
| More | 223426 |