7Wild A V.Comparison of potassium uptake by four plant spe-cies grown in sand and in flowing solution culture[J].Appl Ecol,1974,11:801-812.
8Memon AR,Glass A D M.In:Genetic Aspects of PlantMineral Nutr[C].Eds.Saric M R,Loughman B C,MartiugsNijhoff Publishers,1987:323-330.
9Pettersson S,Jensen P.Variation among species and varieties inuptake and utilization of potassium[J].Plant and Soil,1983,72:231-237.
10Makmur A,Gerloff G C,Gabelman W H.Physiology andinheritance of efficiency in potassium utilization in tomatogrown underpotassium stress[J].Proc Am Soc Hortic Sci,1978,103:545-549.