About ANDO H
About Yamagata Univ., Tsuruoka, JPN
About KAKUDA K
About Yamagata Univ., Tsuruoka, JPN
About NAKAYAMA M
About Yamagata Univ., Tsuruoka, JPN
About YOKOTO K
About Yamagata Univ., Tsuruoka, JPN
About Soil Science and Plant Nutrition
About paddy rice
About Rice cropping
About Fertilizer application and efficiency
About 不耕起
About 直播
About 水稲
About 収量
About 窒素肥料
About 施肥法