由于种肥集中施在种子附近,对促根壮蘖、培育壮苗有明显作用,尤其是在土壤瘠薄、底肥不足或误期晚播的情况下,施用种肥的作用更为明显。试验表明,667平方米用2.5～4公斤硫酸铵作种肥,每公斤肥料可增产小麦5公斤左右;667平方米用过磷酸钙5～10公斤作种肥, Due to the concentration of seed fertilizer in the vicinity of the seed, to promote strong roots and tillers, nurturing seedlings have a significant role, especially in the soil infertility, lack of fertilizer or late sowing in the case of late, the role of the application of fertilizer is more obvious. Tests show that 667 square meters with 2.5 to 4 kg of ammonium sulfate as seed fertilizer, fertilizer per kilogram of wheat can increase about 5 kg; 667 square meters of superphosphate 5 to 10 kg as seed fertilizer,