【摘要】 通过正交试验结果得出培育一年生长白落叶松（larix olgensis Henrg）苗,施N、P、K肥合理配比N₄P₄K₁即硝酸铵（NH₄No₃）720Kg/ha,磷酸二铵[（NH₄）₂HPO₄]360kg/ha,硫酸钾（K₂SO₄）12kg/ha,可提高苗木的成苗率达到83%;相反均促使苗木成苗率显著下降,一般在40%左右。另外,在N、P、K三种肥料中,N肥对苗木生长（高、径、根重、茎重、叶重）都起着决定性的作用,而P、K次之。更多还原

【Abstract】 It can raise the qualified rate to 83 per cent for cultivating one years Changbai Larch seedlings in the nursery by using the proper compatibility of N.P.K. fertilizer. The result of orthognoeity rejection shows that N₄P₄K₁720kg/ha（NH₄NO₃）,360kg/ha[（NH₄）₂HPO₄], 12kg/ha（K₂SO₄）; IS the best compatibility Otherwise, the qualified rate comes down obviously to 40 per cent. Among the N.P.K. fertilizer, N plays an important part to the nursery seedlings.更多还原