About KOHARA HIROYUKI
About USUKURA TAKAHISA
About 熱帯農業研究
About Orchidaceae
About flowering plant
About food processing by-product
About culture soil
About fertilization(cultivation)
About liquid fertilizer
About fertilizer requirement
About concentration dependence
About dilution
About plant growth
About leaf
About root
About cost
About fertilizer effect
About Phalaenopsis
About ヤシガラ
About Flowering plants(=ornamental plants)and flowering trees
About Fertilizer application and efficiency
About ヤシガラ
About 培地
About ファレノプシス
About 栽培
About 施肥