2Warncke, D. D. Analyzing greenhouse growthmedia by the saturation extraction method. hortscience. 1986, 21(2): 223 ~ 225. 被引量:1
3Wright, R, D., K. L. Grueber, and C. Leda. Medium nutrient extraction with the pour - through and saturated medium extract procedures for poinsettia. HortScience. 1990, 25(6) :658~660. 被引量:1
4By Dr. Hannah Mathers . Monitoring Media In Containers [ J ].Digger., 1999, 12:28~30. 被引量:1
5Harvey J. Lang Growing Media Testing and Interpretation Greenhouse 3th Edition. 1990:129~ 130. 被引量:1