PourThru: A method for monitoring nutrition in the greenhouse

Acta Horticulturae

Volumn 779, Issue , 2008, Pages 289-298

  Cavins, T J ^a   Whipker, B E ^b   Fonteno, W C ^b  

^a OKLAHOMA STATE UNIVERSITY   (United States)

^b NORTH CAROLINA STATE UNIVERSITY   (United States)

Author keywords

Bulk solution displacement; Electrical conductivity; Leachate; Pour through; SME; Soil testing

Indexed keywords

EID: 58049195863     PISSN: 05677572     EISSN: None     Source Type: Book Series    
DOI: 10.17660/ActaHortic.2008.779.35     Document Type: Conference Paper

References (23)

1. Argo, W.R. and Biernbaum, J.A. 1995. The effect of irrigation method, water-soluble fertilizer, preplant nutrient charge, and surface evaporation on early vegetative and root growth of poinsettia. J. Amer. Soc. Hort. Sci. 120:163-169.
2. Bilderback, T.E. and Fonteno, W.C. 1987. Effects of container geometry and media physical properties on air and water volumes in containers. J. Environ. Hort. 5:180-182.
3. Cataldo, D.A., Haroon, M., Schrader, L.E. and Youngs, V.L. 1975. Rapid colormetric determination of nitrate in plant tissue. Comm. Soil Sci. and Plant. Anal. 6:71-80.
4. Chaney, A.L. and Marbach, E.P. 1962. Modified reagents for determination of urea and ammonia. Clinical Chemistry 8:130-132.
5. Christian, G.D. and Feldman, F.J. 1970. Atomic absorption spectroscopy: applications in agriculture, biology, and medicine. Wiley Interscience. New York.
6. Cavins, T.J., Whipker, B.E., Fonteno, W.C. and Gibson, J.L. 2000a. Establishing a PourThru sampling program: part 1. Ohio Floristś Assoc. Bui. 846:1-11.
7. Cavins, T.J., Whipker, B.E., Fonteno, W.C. and Gibson, J.L. 2000b. Establishing a PourThru sampling program: part 2. Ohio FloristśAssoc. Bui. 847:11-14.
8. Cavins, T.J., Whipker, B.E. and Fonteno, W.C. 2001. Comparing Substrate Test. Greenhouse Product News 11(12): 10-16.
9. Compton, A.J. and Nelson, P.V. 1997. Timing is crucial for plug seedling substrate testing. HortTechnology 7:63-68.
10. Dole, J.M. and Wilkins, H.F. 1999. Nutrition, p.57-78. In: Floriculture: Principles and Species. Prentice Hall: Upper Saddle River, N.J.
11. Handreck, K.A. 1993. Properties of coir dust, and its use in the formulation of soilless potting media. Commun. Soil Sci. Plant Anal. 24(3&4):349-363.
12. Handreck, K.A. 1994. Pour-through extracts of potting media: anomalous results for pH Commun. Soil Sci. Plant Anal. 25:2081-2088.
13. Morvant, J.K., Dole, J.M. and Allen, E. 1997. Irrigation systems alter distributions of roots, soluble salts, nitrogen, and pH in the root medium. HortTechnology 7:156-160.
14. Murphy, J. and Riley, J.P. 1962. A modified solution method for the determination of phosphate in natural waters. Anal. Chim. Acta 27:31-36.
15. Sparks, D.L. 1995. Redox chemistry of soils. In: Environmental soil chemistry. Academic Press, San Diego, CA.
16. rd ed. North Carolina commercial flower growerś association, Raleigh. N.C.
17. Whipker, B.E., Fonteno, W.C, Cavins, T.J. and Gibson, J.L. 2000. Nutritional problems? You should be using PourThru. GmPro 20:28-34.
18. Whipker, B.E. and Hammer, P.A. 1997. Nutrient uptake in poinsettias during different stages of physiological development. J. Amer. Soc. Hort. Sci. 122:565-573.
19. Yeager, T.H., Wright, R.D. and Donohue, S.J. 1983. Comparison of pour-through and saturated pine bark extract N, P, K, and pH levels. J. Amer. Soc. Hort. Sci. 108:112-114.
20. Warncke, D.D. 1998. Greenhouse root media. North Cen. Reg. Res. Pub. 221:31-33 (Revised).
21. Warncke, D.D. and Krauskopf, D.M. 1983. Greenhouse growth media: testing and nutritional guidelines. Michigan State Univ. Coop. Ext. Serv. Bulletin E-1736.
22. Wright, R.D. 1986. The pour-through nutrient extraction procedure. HortScience 21:227-229.
23. Wright, R.D., Grueber, K.L. and Leda, C. 1990. Medium nutrient extraction with the pour-through and saturated medium extract procedure for poinsettia. HortScience 25:658-660.