Authors:
Ellison, SLR
Burke, S
Walker, RF
Heydorn, K
Mansson, M
Pauwels, J
Wegscheider, W
Nijenhuis, BT
Citation: Slr. Ellison et al., Uncertainty for reference materials certified by interlaboratory study: Recommendations of an international study group, ACCRED Q A, 6(6), 2001, pp. 274-277
Citation: Rf. Walker, Growth and nutritional responses of containerized sugar and Jeffrey pine seedlings to controlled release fertilization and induced mycorrhization, FOREST ECOL, 149(1-3), 2001, pp. 163-179
Authors:
Walker, RF
Johnson, DW
Geisinger, DR
Ball, JT
Citation: Rf. Walker et al., Growth, nutrition, and water relations of ponderosa pine in a field soil as influenced by long-term exposure to elevated atmospheric CO2, FOREST ECOL, 137(1-3), 2000, pp. 1-11
Citation: Rf. Walker et Cd. Huntt, Growth and nutrition of containerized singleleaf pinyon seedlings in response to controlled release fertilization, ARID SOIL R, 13(2), 1999, pp. 123-132