ABSTRACT The research had been conducted from August 1988 until October at the Potrobangsan village, North Magelang District, Magelang City, the soil type is gegonol, pH 6 at an altitude of 376 m. The purpose of the research is to know about the re- lationship between aplication frequensy of nitrogen and phosphate to the yield of sweet corn Honey Jean variety (Pâ‚ H…