About KOIZUMI TAKEHARU
About NAKAJO HIROYA
About 群馬県 利根沼田県民局
About 群馬県農業技術センター研究報告
About Asparagus officinalis
About forcing culture
About rootstock
About stem(plant)
About plant disease
About dormancy
About Gunma prefecture
About labor saving
About cultivation management
About yield
About cultural pest control
About 茎枯病
About Vegetables
About Cultural pest control
About アスパラガス
About 栽培
About 茎枯病
About 根株
About 若茎
About 生育