About KATSUBA ZENNOSUKE
About 広島県立総合技術研究所農業技術センター
About 日本作物学会中国支部研究集録(Web)
About paddy rice
About fertilization(cultivation)
About nitrogen fertilizer
About crop yield
About quality
About field experiment
About food ingredient
About food analysis
About grain yield
About Food Quality
About nitrogen application
About amount of nitrogen application
About 恋の予感
About Food quality
About Rice cropping
About Fertilizer application and efficiency
About 水稲
About 品種
About 恋
About 窒素
About 用量
About 収量
About 講演
About 日本
About 作物
About 学会
About 中国
About 講演会