About NAGUMO Toshiyuki
About Fac. of Agriculture, Shizuoka Univ.
About TAJIMA Shintaro
About Fac. of Agriculture, Shizuoka Univ.
About CHIKUSHI Sanae
About Fac. of Agriculture, Shizuoka Univ.
About YAMASHITA Ayako
About Fac. of Agriculture, Shizuoka Univ.
About Plant Production Science
About paddy rice
About fertilization (cultivation)
About phosphorus
About paddy soil
About material balance
About cropping system
About field (agriculture)
About compost
About green manure
About soil conditioner
About soil phosphorus
About Rice cropping
About Fertilizer application and efficiency
About Soil science in general
About 肥料
About 施肥
About 水稲
About 圃場
About リン
About 収支
About 土壌リン