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以氮磷肥做底肥一次施入，对钾肥用量和时期进行了研究。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。
Nitrogen and phosphate fertilizer as a base fertilizer once applied to the amount and period of potash fertilizer were studied. The results showed that 26 g urea nitrogen (NH2) 2 and 26 g ammonium dihydrogen phosphate (NH4) 2HPO4 were applied in 25 kg dry blasting soil as substrate fertilizer, applied potassium sulfate K2SO4 12 g at the first leaf stage and comprehensive quality of seedlings it is good.