The results showded that the method with urea 26 g ,am monium phosphte 26 g bottom fertilizer and potassium sulfate 12 g ap plied in period of oneleave on 1 m2 seeding bed have a best effect on synthetic quality ofseedling .

• 结果表明，1 m2 苗床25 kg 风干冲击土中一次施入尿素Co（NH2）2 26 g、磷酸二铵（NH4）2HPO4 26g 做底肥，在水稻一叶期施硫酸钾K2SO4 12 g ，秧苗综合素质好。