密肥条件对水稻氮素吸收和产量形成的影响.pdf

中国水稻科学(Ch inese J R ice S ci) , 200 1, 15 (4) : 281～ 286　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　 281 密肥条件对水稻氮素吸收和产量形成的影响 苏祖芳　周培南　许乃霞　张亚洁　(扬州大学 农学院农学系, 江苏 扬州 225009) E ffect s o f N it ro gen an d P lan t in g D en sity on N A b so rp t ion an d Y ie ld o f R ice U , HOU , U , HAN G S Zu fang Z P ei nan X N a i x ia Z Ya j ie ( , , , 225009 , ) D ep a rtm en t of A g ronomy A g ricu ltu ra l Colleg e Yang z hou U n iv ers ity Yang z hou Ch ina 　　 : Abstract T h e effect s of am oun t of n it rogen an d p lan t in g den sity on N ab so rp t ion an d y ield fo rm at ion of r ice w ere stu d ied . 95 16 63. : , w ith m id sea son r ice jap on ica cv an d in d ica hyb r id r ice Sh anyou T h e re su lt s are a s fo llow s at m atu r in g stage th e ( ) , to ta l am oun t of N ab so rp t ion AN A in p lan t s an d in p an icle s w ere in crea sed w ith th e in crea se of N app licat ion bu t th e rat io , . of AN A of p an icle s to th e to ta l AN A of p lan t s decrea sed th e to ta l AN A var ied am on g d ifferen t row sp acin g s D iver sificat ion , , of th e to ta l num b er of sp ik elet s p er area AN A p er p lan t var ied in l