Comparison of Raw Dairy Manure Slurry and Anaerobically Digested Slurry as N Sources for Grass Forage Production

Table 2

Dates of forage harvest and fertilizer (slurry and urea) applications for field study in Monroe, WA for 2009–2011.

2009		2010		2011
Forage Harvest	Fertilizer application^a	Forage Harvest	Fertilizer application^a	Forage harvest	Fertilizer application^a
	17-Apr-09^b		4-Mar-10
7-May-09^c	14-May-09	26-Apr-10	11-May-10	5-May-11	19-May-11
2-Jun-09	8-Jun-09	10-Jun-10	22-Jun-10	10-Jun-11	22-Jun-11
1-Jul-09	20-Jun-09^d	7-Jul-10	15-Jul-10	14-Jul-10	4-Aug-11
28-Jul-09	11-Aug-09	12-Aug-10		22-Aug-10	31-Aug-11
31-Aug-09		15-Sep-10	30-Sep-10	20-Sep-10
29-Sep-09		2-Dec-10		18-Oct-11
30-Nov-09

^aSoil samples taken 1-day prior to fertilizer application.
^bEarly season manure application by grower, prior to plot establishment.
^cHarvest prior to plot establishment, yield data from this harvest does not include replicates.
^dUnintended slurry application from grower.