Research on the Production Cost of the Direct Sowing System and the Transpanting System in Sugar Beet

von UEDA, Toshibumi
Veröffentlicht in Tensai Gijutsu Renraku Kenkyūkai Happyō (29. : 1989 : Sapporo) Dai 29kai Tensai Gijutsu Renraku Kenkyūkai Happyō ronbunshū (Heisei gannen) (1990)