Fertilization Treatments

Each of the 8 treatment levels in this experiment contains a single nutrient. There is also a control which receives no nutrients. The treatments are assigned a capital letter A through I or digits 1 through 9.
Treatment Code
 		Nutrient Added
A
 		20 g/m2 NH4NO3
B
 		35 g/m2 NaH2PO4-H2O + 35 g/m2 Na2HPO4
C
 		87 g/m2 K2SO4
D
 		75 g/m2 CaCO3
E
 		60 g/m2 MgSO4
F
 		71 g/m2 Na2SO4
G
 		60 ml/m2 trace metal sand*
H
 		4 gal/m2/week H2O
I
 		no nutrients added
*see nutradd.doc for documentation

The plots are 4 m2 in area.

The only irregularities in fertilization occurred in 1982 for treatment H. The water that year was applied only in the fall. Plot 36 received a small amount of KSO4 at the tagged end accidentally.


dman@lter.umn.edu