Potassium in tropical crops and soils; proceedings.
Colloquium on Potassium in Tropical Crops and Soils, 10th, Abidjan, Dec. 1973.
Potassium in tropical crops and soils; proceedings. - Berne (Switzerland) International Potash Institute 1974 - 603p.
631.416.4:633(213) L3
Potassium in tropical crops and soils; proceedings. - Berne (Switzerland) International Potash Institute 1974 - 603p.
631.416.4:633(213) L3


