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£Û5£Ý »¨»ÜÔ°ÒÕ.ÄϾ©ÖÐɽֲÎïÔ°.

£Û6£Ý Nadia Ronde,Terril A.nell,and James E.Barretl Longevit of Potted Chrysanthemums at Various Nitrogen and Potassium Concentrations and NH4:NO3 Ratios Hortscience.Vol 26£¨2£©£¬163£­165 February 1991.

£Û7£Ý K.S.Reddy and H.A.Mills.Interspecific Responses of Marig?old to Manganese as Influenced by Nitrogen Source Hortscience Vol 26(10), 1281-1282, October 1991.

£Û8£Ý Higaki,-T.;Imamura,-J.s.;Paull,-R.E.N,P,and K rates and leaf tissue standards for optimum Anthurium andreanum flower production. Hortscience Aug 1992 Vol.27(8) P.909-912

 

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