Nonetheless, the delta soils are conveniently labored. The diking with the Purple River to avoid flooding has deprived the delta’s rice fields of enriching silts they after been given, and it's been essential to use chemical fertilizers. Tên gọi "Việt Nam" cũng xuất Helloện trong tác phẩm Việt Nam vong https://vitnam78990.laowaiblog.com/30229206/rumored-buzz-on-vf555