References
- Benson , B.L. and Paulsen , K.N. 1990 . Macro‐and micro‐nutrient deficiency symptoms in asparagus seedlings . Acta Horticulturae , 271 : 497 – 501 .
- Dufault , R.J. and Greig , J.K . 1983 . Dynamic growth characteristics in seedling asparagus . J. Amer. Soc. Hort. Sci. , 108 (6) : 1026 – 1030 .
- Dufault , R.J. and Waters , L Jr. 1984 . Propagation methods influence asparagus transplant quality and seedling growth . HortSci. , 19 (6) : 866 – 868 .
- Hoagland , D.R. and Arnon , D.I. 1950 . The water‐culture method for growing plants without soil , California Experiment Station . Circular Number 347
- Mengel , K and Kirkby , E.A . 1978 . Principles of Plant Nutrition , Worblaufen‐Bern , , Switzerland : International Potash Institute .
- Pitman , B.C. , Sanders , D.C. and Swallow , W.H. 1991 . Growth and development of young asparagus plants in response to N fertilization . HortSci. , 26 (2) : 100 – 112 .
- SAS Institute . 1987 . SAS/STAT Guide for Personal Computers, , Version 6 edition Cary , NC
- Current address: University of Wisconsin Agronomy Department. 1575 Linden Drive, Madison, WI 53706.