About SUZUKI KAZUYOSHI
About 農研機構 畜産草地研
About mineral resource
About phosphorus
About chicken dropping
About resource recovery
About resource recycling
About recycle
About composting
About animal waste treatment
About phosphate
About aluminium magnesium phosphate
About Fertilizers in general
About リン資源
About 枯渇
About リサイクル
About 家畜ふん尿