van Noordvijk M.Hairiah K.Ms S Peltophorum pterocarps (DC.) Back (Caesalpiniaceae), a tree with a root distribution suitable for alley cropping on acid soils in the humid tropics 1991是什么意思_van Noordvijk M.Hairiah K.Ms S Peltophorum pterocarps (DC.) Back (Caesalpiniaceae), a tree with a root distribution suitable for alley cropping on acid soils in the humid tropics 1991在线翻译_英语_读音_用法_例句