Table 3.

Overview of year×farm×field×treatment combinations available in the dataset. Crosses identify the available combinations

Farm	Field	Year	CAN			Urea	UAN
			1 Appl.*	2 Appl.	3 Appl.	1 Appl.	1 Appl.
1	1	2010	x	x	x		x
2	2	2010	x		x		x
3	3	2007			x	x	x
3	4	2008				x	x
3	5	2010	x	x	x		x
4	6	2010	x	x	x
5	7	2010	x	x	x
6	8	2008	x		x	x
6	9	2009	x		x	x	x
6	10	2010	x		x	x	x
7	11	2009	x	x	x
7	12	2009	x	x	x
7	13	2010	x	x	x
8	14	2009	x		x		x
8	15	2010	x		x
9	16	2007			x	x	x
9	17	2007				x	x
9	18	2010	x	x	x		x
10	19	2008				x	x
10	20	2009	x		x	x	x
11	21	2009	x	x	x
12	22	2007	x		x	x	x
12	23	2007	x		x	x	x
12	24	2009	x		x	x
13	25	2007	x		x	x	x
13	26	2007	x		x	x	x
13	27	2008	x		x		x
13	28	2009	x		x
14	29	2009	x		x	x
14	30	2010	x	x	x
15	31	2009					x
16	32	2009					x
17	33	2008			x†		x†
18	34	2008			x		x
18	35	2010	x	x	x		x
19	36	2008				x	x

^*Application.

^†Only data for crude protein were available for farm 17, field 11.