Astudy on The Efficiency Of Nitrogen Fertilizers On Potatoes In A Recenty Reclaimed Souil

The present investigation out during the two sucessive of 1994and 1995 in the newly reclaimed sandy soils at El-qassasine Location Ismailial Governorate. Te aim of investigation was to study the infuence of five nitrogen souces (Urea Ureaform Ammonium Nitrate Ammonium Sulphate andCalcium nitrate ) and three nitrogen levels (90 120and 150Kg N/fed ) on growth yield and yield attributes and chemical analysis of potato( Solanum tuberousmL.)