Seed-cum fertilizer experiments on wheat conducted in cultivators fields in minufiya Province, Egypt, 1956.

abonos agricultural sector calidad data analysis engrais experimentation fertilizers graine methode methods muestreo nitrofosfatos nitrophosphate nitrophosphates quality rendement rendimiento sampling secteur agricole sector agrario seed seed treatment seeds semence semilla semillas statistical methods traitement des semences tratamiento de semillas trigo wheats yields