Ceylon - Survey of possible fertilizer manufacture - Report to the government.

abonos agronomia agronomie agronomy ammonia ammoniac arroz azote caoutchouc capital caucho coco coconuts costos costs demand demanda demande economic analysis economic distribution engrais exigence des plantes factories fertilisation fertilizer application fertilizers fosfatos (sales) magnesio magnesium materias primas mezclado mixing necesidades de las plantas nitrogen noix de coco operating costs phosphate (sel) phosphates (salts) plant requirements potasio potassium raw materials rice riz rubber site factors skilled labour tea training usine