All Methods

Methods for Experiment 055 -

Fertilization Treatments

For experiments 55 and 70, the following nutrients are added twice each year, once in early May and once in late June:

Nutrient	Amount
P2O5	18 g/subplot
K2O	18 g/subplot
CaCO3	18 g/subplot
MgSO4	18 g/subplot
Trace Metals	1/4 teaspoon/subplot

Each subplot is 1.44 m2. This will give each subplot a total of 25 g/m2 of each chemical per year.

Field Operations: Burning

Starting in 1991, these plots are burned each spring before the plants start growing. This is to destroy litter so there is no litter effect.

Field Operations: Fencing

A belowground gopher fence (3 feet deep and 1 foot wide) and above-ground rodent/deer fence (6 feet tall) was built around the plots in 1989. Each plot was subdivided into 26 subplots with galvanized sheet metal (26 gauge, 48" x 12") in 1988.

Field Operations: Fertilization

Fertilizer is mixed and spread by hand twice a year, once in early May and once in late June. All plots receive the same fertilizer, with none of them getting any NH₄NO₃.

Field Operations: Mammal Trapping

Small mammals are trapped in the fall to discourage overwinter inhabitants. Pocket gophers are trapped out of the experiment as soon as they appear (very infrequently).

Field Operations: Soil Added

Different amounts of black soil were added to the different plots. The heavy black soil settled about 1-1.5 inches in some locations. Black soil was added to compensate for the settling. One half inch was added on top of black dirt for plots that received 7, 8 or 9 inches of black dirt. A table listing the different soil recipes for the individual plots follows:

Plot Number	N Level=Treatment	Soil Remove (in)	Black Dirt Added (in)
1	4	0	2
2	7	4	5
3	12	7	9
4	6	3	4
5	1	0	0.3
6	11	6	8
7	14	8	10
8	10	5	7
9	2	0	0.5
10	8	4	5
11	13	8	10
12	9	4	6
13	3	0	1
14	5	0	3

Field Operations: Watering

All plots are watered to receive at least 1.5cm/wk in April, May and October, and 2.5cm/wk in June through September.

Field Operations: Weeding

All plots and aisles are routinely weeded to keep the area free of unwanted plants and future seed sources.

Treatment layout : trmte55

How to read the competetion treatment: a. Each species is represented by two characters (see abstract ). b. The species code is followed by the percentage of this species seeds of the total number of seeds planted. Example: PV30AS70 : 30 % of seeds are from species PV and 70% are from AS. Note: Subplots 24,25, and 26 are no longer in e055

Field Identification	Experiment Number	Plot Number	Subplot Number	Treatment	Competition Treatment
E	55	1	1	12	PV30BG70
E	55	1	2	14	SS30AS70
E	55	1	3	2	SS100
E	55	1	4	9	PV70SS30
E	55	1	5	13	PV70BG30
E	55	1	6	16	SS30BG70
E	55	1	7	18	AS30BG70
E	55	1	8	22	AG70BG30
E	55	1	9	4	BG100
E	55	1	10	17	SS70BG30
E	55	1	11	5	AG100
E	55	1	12	23	BD30PV70
E	55	1	13	20	PV25SS25AS25BG25
E	55	1	14	15	SS70AS30
E	55	1	15	24	BD70PV30
E	55	1	16	10	PV30AS70
E	55	1	17	11	PV70AS30
E	55	1	18	3	AS100
E	55	1	19	6	BD100
E	55	1	20	1	PV100
E	55	1	21	8	PV30SS70
E	55	1	22	21	AG30BG70
E	55	1	23	19	AS70BG30
E	55	1	24	25	QR50SS50
E	55	1	25	7	QR100
E	55	1	26	26	BAREGROUND
E	55	2	1	4	BG100
E	55	2	2	21	AG30BG70
E	55	2	3	10	PV30AS70
E	55	2	4	19	AS70BG30
E	55	2	5	1	PV100
E	55	2	6	15	SS70AS30
E	55	2	7	24	BD70PV30
E	55	2	8	16	SS30BG70
E	55	2	9	17	SS70BG30
E	55	2	10	22	AG70BG30
E	55	2	11	12	PV30BG70
E	55	2	12	23	BD30PV70
E	55	2	13	6	BD100
E	55	2	14	18	AS30BG70
E	55	2	15	14	SS30AS70
E	55	2	16	20	PV25SS25AS25BG25
E	55	2	17	3	AS100
E	55	2	18	13	PV70BG30
E	55	2	19	8	PV30SS70
E	55	2	20	11	PV70AS30
E	55	2	21	2	SS100
E	55	2	22	5	AG100
E	55	2	23	9	PV70SS30
E	55	2	24	26	BAREGROUND
E	55	2	25	25	QR50SS50
E	55	2	26	7	QR100
E	55	3	1	20	PV25SS25AS25BG25
E	55	3	2	24	BD70PV30
E	55	3	3	12	PV30BG70
E	55	3	4	23	BD30PV70
E	55	3	5	9	PV70SS30
E	55	3	6	15	SS70AS30
E	55	3	7	8	PV30SS70
E	55	3	8	3	AS100
E	55	3	9	16	SS30BG70
E	55	3	10	17	SS70BG30
E	55	3	11	4	BG100
E	55	3	12	19	AS70BG30
E	55	3	13	14	SS30AS70
E	55	3	14	13	PV70BG30
E	55	3	15	10	PV30AS70
E	55	3	16	2	SS100
E	55	3	17	6	BD100
E	55	3	18	5	AG100
E	55	3	19	1	PV100
E	55	3	20	22	AG70BG30
E	55	3	21	21	AG30BG70
E	55	3	22	11	PV70AS30
E	55	3	23	18	AS30BG70
E	55	3	24	7	QR100
E	55	3	25	26	BAREGROUND
E	55	3	26	25	QR50SS50
E	55	4	1	19	AS70BG30
E	55	4	2	1	PV100
E	55	4	3	21	AG30BG70
E	55	4	4	22	AG70BG30
E	55	4	5	14	SS30AS70
E	55	4	6	8	PV30SS70
E	55	4	7	3	AS100
E	55	4	8	18	AS30BG70
E	55	4	9	16	SS30BG70
E	55	4	10	11	PV70AS30
E	55	4	11	23	BD30PV70
E	55	4	12	24	BD70PV30
E	55	4	13	4	BG100
E	55	4	14	2	SS100
E	55	4	15	17	SS70BG30
E	55	4	16	13	PV70BG30
E	55	4	17	10	PV30AS70
E	55	4	18	6	BD100
E	55	4	19	15	SS70AS30
E	55	4	20	9	PV70SS30
E	55	4	21	20	PV25SS25AS25BG25
E	55	4	22	12	PV30BG70
E	55	4	23	5	AG100
E	55	4	24	26	BAREGROUND
E	55	4	25	7	QR100
E	55	4	26	25	QR50SS50
E	55	5	1	17	SS70BG30
E	55	5	2	6	BD100
E	55	5	3	12	PV30BG70
E	55	5	4	10	PV30AS70
E	55	5	5	4	BG100
E	55	5	6	24	BD70PV30
E	55	5	7	11	PV70AS30
E	55	5	8	1	PV100
E	55	5	9	16	SS30BG70
E	55	5	10	3	AS100
E	55	5	11	8	PV30SS70
E	55	5	12	15	SS70AS30
E	55	5	13	22	AG70BG30
E	55	5	14	19	AS70BG30
E	55	5	15	14	SS30AS70
E	55	5	16	18	AS30BG70
E	55	5	17	23	BD30PV70
E	55	5	18	5	AG100
E	55	5	19	2	SS100
E	55	5	20	20	PV25SS25AS25BG25
E	55	5	21	21	AG30BG70
E	55	5	22	13	PV70BG30
E	55	5	23	13	PV70BG30
E	55	5	24	25	QR50SS50
E	55	5	25	7	QR100
E	55	5	26	26	BAREGROUND
E	55	6	1	5	AG100
E	55	6	2	15	SS70AS30
E	55	6	3	21	AG30BG70
E	55	6	4	18	AS30BG70
E	55	6	5	4	BG100
E	55	6	6	19	AS70BG30
E	55	6	7	13	PV70BG30
E	55	6	8	2	SS100
E	55	6	9	11	PV70AS30
E	55	6	10	23	BD30PV70
E	55	6	11	1	PV100
E	55	6	12	8	PV30SS70
E	55	6	13	24	BD70PV30
E	55	6	14	10	PV30AS70
E	55	6	15	6	BD100
E	55	6	16	17	SS70BG30
E	55	6	17	16	SS30BG70
E	55	6	18	14	SS30AS70
E	55	6	19	22	AG70BG30
E	55	6	20	9	PV70SS30
E	55	6	21	20	PV25SS25AS25BG25
E	55	6	22	12	PV30BG70
E	55	6	23	3	AS100
E	55	6	24	25	QR50SS50
E	55	6	25	26	BAREGROUND
E	55	6	26	7	QR100
E	55	7	1	20	PV25SS25AS25BG25
E	55	7	2	16	SS30BG70
E	55	7	3	19	AS70BG30
E	55	7	4	5	AG100
E	55	7	5	14	SS30AS70
E	55	7	6	21	AG30BG70
E	55	7	7	6	BD100
E	55	7	8	22	AG70BG30
E	55	7	9	10	PV30AS70
E	55	7	10	13	PV70BG30
E	55	7	11	23	BD30PV70
E	55	7	12	9	PV70SS30
E	55	7	13	4	BG100
E	55	7	14	18	AS30BG70
E	55	7	15	17	SS70BG30
E	55	7	16	2	SS100
E	55	7	17	8	PV30SS70
E	55	7	18	11	PV70AS30
E	55	7	19	12	PV30BG70
E	55	7	20	3	AS100
E	55	7	21	15	SS70AS30
E	55	7	22	1	PV100
E	55	7	23	24	BD70PV30
E	55	7	24	26	BAREGROUND
E	55	7	25	7	QR100
E	55	7	26	25	QR50SS50
E	55	8	1	9	PV70SS30
E	55	8	2	2	SS100
E	55	8	3	20	PV25SS25AS25BG25
E	55	8	4	18	AS30BG70
E	55	8	5	4	BG100
E	55	8	6	12	PV30BG70
E	55	8	7	21	AG30BG70
E	55	8	8	16	SS30BG70
E	55	8	9	13	PV70BG30
E	55	8	10	3	AS100
E	55	8	11	5	AG100
E	55	8	12	6	BD100
E	55	8	13	19	AS70BG30
E	55	8	14	23	BD30PV70
E	55	8	15	10	PV30AS70
E	55	8	16	19	AS70BG30
E	55	8	17	15	SS70AS30
E	55	8	18	17	SS70BG30
E	55	8	19	24	BD70PV30
E	55	8	20	1	PV100
E	55	8	21	14	SS30AS70
E	55	8	22	11	PV70AS30
E	55	8	23	8	PV30SS70
E	55	8	24	25	QR50SS50
E	55	8	25	26	BAREGROUND
E	55	8	26	7	QR100
E	55	9	1	9	PV70SS30
E	55	9	2	20	PV25SS25AS25BG25
E	55	9	3	23	BD30PV70
E	55	9	4	1	PV100
E	55	9	5	18	AS30BG70
E	55	9	6	16	SS30BG70
E	55	9	7	2	SS100
E	55	9	8	6	BD100
E	55	9	9	4	BG100
E	55	9	10	8	PV30SS70
E	55	9	11	13	PV70BG30
E	55	9	12	17	SS70BG30
E	55	9	13	21	AG30BG70
E	55	9	14	24	BD70PV30
E	55	9	15	22	AG70BG30
E	55	9	16	3	AS100
E	55	9	17	19	AS70BG30
E	55	9	18	15	SS70AS30
E	55	9	19	11	PV70AS30
E	55	9	20	14	SS30AS70
E	55	9	21	10	PV30AS70
E	55	9	22	5	AG100
E	55	9	23	12	PV30BG70
E	55	9	24	26	BAREGROUND
E	55	9	25	7	QR100
E	55	9	26	25	QR50SS50
E	55	10	1	15	SS70AS30
E	55	10	2	4	BG100
E	55	10	3	11	PV70AS30
E	55	10	4	13	PV70BG30
E	55	10	5	2	SS100
E	55	10	6	16	SS30BG70
E	55	10	7	22	AG70BG30
E	55	10	8	14	SS30AS70
E	55	10	9	5	AG100
E	55	10	10	19	AS70BG30
E	55	10	11	10	PV30AS70
E	55	10	12	8	PV30SS70
E	55	10	13	9	PV70SS30
E	55	10	14	1	PV100
E	55	10	15	24	BD70PV30
E	55	10	16	3	AS100
E	55	10	17	20	PV25SS25AS25BG25
E	55	10	18	12	PV30BG70
E	55	10	19	23	BD30PV70
E	55	10	20	18	AS30BG70
E	55	10	21	21	AG30BG70
E	55	10	22	17	SS70BG30
E	55	10	23	6	BD100
E	55	10	24	7	QR100
E	55	10	25	26	BAREGROUND
E	55	10	26	25	QR50SS50
E	55	11	1	4	BG100
E	55	11	2	22	AG70BG30
E	55	11	3	24	BD70PV30
E	55	11	4	12	PV30BG70
E	55	11	5	21	AG30BG70
E	55	11	6	11	PV70AS30
E	55	11	7	18	AS30BG70
E	55	11	8	16	SS30BG70
E	55	11	9	15	SS70AS30
E	55	11	10	23	BD30PV70
E	55	11	11	8	PV30SS70
E	55	11	12	10	PV30AS70
E	55	11	13	20	PV25SS25AS25BG25
E	55	11	14	13	PV70BG30
E	55	11	15	9	PV70SS30
E	55	11	16	2	SS100
E	55	11	17	1	PV100
E	55	11	18	3	AS100
E	55	11	19	19	AS70BG30
E	55	11	20	14	SS30AS70
E	55	11	21	6	BD100
E	55	11	22	17	SS70BG30
E	55	11	23	5	AG100
E	55	11	24	26	BAREGROUND
E	55	11	25	25	QR50SS50
E	55	11	26	7	QR100
E	55	12	1	4	BG100
E	55	12	2	1	PV100
E	55	12	3	19	AS70BG30
E	55	12	4	23	BD30PV70
E	55	12	5	13	PV70BG30
E	55	12	6	18	AS30BG70
E	55	12	7	11	PV70AS30
E	55	12	8	16	SS30BG70
E	55	12	9	15	SS70AS30
E	55	12	10	21	AG30BG70
E	55	12	11	14	SS30AS70
E	55	12	12	24	BD70PV30
E	55	12	13	9	PV70SS30
E	55	12	14	22	AG70BG30
E	55	12	15	10	PV30AS70
E	55	12	16	20	PV25SS25AS25BG25
E	55	12	17	8	PV30SS70
E	55	12	18	3	AS100
E	55	12	19	2	SS100
E	55	12	20	5	AG100
E	55	12	21	17	SS70BG30
E	55	12	22	6	BD100
E	55	12	23	12	PV30BG70
E	55	12	24	7	QR100
E	55	12	25	25	QR50SS50
E	55	12	26	26	BAREGROUND
E	55	13	1	18	AS30BG70
E	55	13	2	17	SS70BG30
E	55	13	3	11	PV70AS30
E	55	13	4	12	PV30BG70
E	55	13	5	3	AS100
E	55	13	6	21	AG30BG70
E	55	13	7	13	PV70BG30
E	55	13	8	23	BD30PV70
E	55	13	9	6	BD100
E	55	13	10	16	SS30BG70
E	55	13	11	2	SS100
E	55	13	12	22	AG70BG30
E	55	13	13	15	SS70AS30
E	55	13	14	19	AS70BG30
E	55	13	15	24	BD70PV30
E	55	13	16	4	BG100
E	55	13	17	10	PV30AS70
E	55	13	18	9	PV70SS30
E	55	13	19	8	PV30SS70
E	55	13	20	5	AG100
E	55	13	21	14	SS30AS70
E	55	13	22	20	PV25SS25AS25BG25
E	55	13	23	1	PV100
E	55	13	24	26	BAREGROUND
E	55	13	25	7	QR100
E	55	13	26	25	QR50SS50
E	55	14	1	5	AG100
E	55	14	2	6	BD100
E	55	14	3	13	PV70BG30
E	55	14	4	11	PV70AS30
E	55	14	5	19	AS70BG30
E	55	14	6	8	PV30SS70
E	55	14	7	14	SS30AS70
E	55	14	8	22	AG70BG30
E	55	14	9	2	SS100
E	55	14	10	4	BG100
E	55	14	11	12	PV30BG70
E	55	14	12	3	AS100
E	55	14	13	23	BD30PV70
E	55	14	14	17	SS70BG30
E	55	14	15	15	SS70AS30
E	55	14	16	9	PV70SS30
E	55	14	17	10	PV30AS70
E	55	14	18	1	PV100
E	55	14	19	16	SS30BG70
E	55	14	20	21	AG30BG70
E	55	14	21	20	PV25SS25AS25BG25
E	55	14	22	24	BD70PV30
E	55	14	23	18	AS30BG70
E	55	14	24	7	QR100
E	55	14	25	26	BAREGROUND
E	55	14	26	25	QR50SS50

Vegetation Sampling

1992: Clipped centered front to back, 35-45 cm from left, strip was 10 cm X 50 cm 1993: Clipped centered from to back, 35-45 cm from right, strip was 10 cm X 50 cm 1994: 1995: 1996: Clipped 45-55 cm from left, 10 cm from front, strip was 10 cm X 1 m 1997: 1998: 1999: 2000: