الفهرس 
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Abstract
Two field experiments were carried out at the Agric. Experiment Station of Mansoura univ. during 1979 – 80 and 1980-81 seasons in order to determine the effect of nitrogenous, phosphatic and potash fertilization on the growth, yield and quality of seeds of pea plant. The little Marvel variety was used in the present investigation. The used experimental design was a complete block randomized. Three levels of nitrogen fertilizer ( 0, 15 and 30 kg N/fad), two levels of both phosphatic ( 0, 32 kg P2 0 5/fad ) and potash ( 0, and 50 kg k2 0/fad) fertilizer were used in this study. The fertilizer treatments, thus, consisted of twelve N, P and K combinations. The treatments were replicated four times, hence 48 plots were needed. Determined amounts of ammonium sulphate ( 20.5% N), calcium superphosphate ( 16% P2 O5) and potassium sulphate ( 48% K2O) were thoroughly mixed for every treatment. The dose of mixed fertilizer required for every plot was applied in two split applications, one half at three weeks after sowing and the other half at eight weeks after sowing. At each time of application, the fertilizer was uniformly distributed on the hills and irrigation was carried out directly.