Table 3

Summary Statistics on Covariates for Enrolled and Nonenrolled Farmers for Grass Waterways

Variable	Definition	Prematching			Postmatching
		Enrolled (N = 146)	Nonenrolled (N = 379)		Enrolled (N = 144)	Nonenrolled (N = 379)
		Mean	Mean	Diff. in Means	Mean	Mean	Diff. in Means
Farm Revenue	= 1 if farm revenue exceeded $250,000 in 2009	0.377	0.269	0.108^*	0.375	0.368	0.007
Farm Horizon	= 1 if farm will be operated by family within the next 5 years	0.904	0.868	0.036	0.903	0.903	0.000
Age	Age	56.404	57.367	-0.963	56.521	56.389	0.132
Education	= 1 if education exceeds high school	0.479	0.404	0.076	0.479	0.454	0.025
Soil type	= 1 if dominant soil texture is clay	0.801	0.739	0.063	0.799	0.789	0.010
	= 1 if dominant soil texture is loam or sandy	0.199	0.261	-0.063	0.201	0.211	-0.010
Highly Erodible Land (HEL)	= 1 if land is classified as HEL	0.610	0.317	0.293^**	0.604	0.594	0.010
Household Income	= 1 if 0%–10% of household income comes from farming	0.226	0.193	0.033	0.215	0.223	-0.008
	=1 if 10%–50% of household income comes from farming	0.315	0.335	-0.020	0.319	0.318	0.002
	= 1 if more than 50% of household income comes from farming	0.459	0.472	-0.013	0.465	0.459	0.006
Rented	proportion of farm acreage rented in 2009	0.460	0.407	0.053	0.463	0.460	0.003
Grain Crops	proportion of farm acreage devoted to grain crops in 2009	0.941	0.851	0.090^**	0.941	0.932	0.009
Slope	proportion of farm acreage with slope 0%–2%	0.483	0.621	-0.138^**	0.490	0.517	-0.027
	proportion of farm acreage with slope 2%–6%	0.451	0.331	0.120^**	0.444	0.424	0.020
	proportion of farm acreage greater than 6% slope	0.066	0.048	0.018	0.067	0.059	0.007
Farm Size	natural log of total farm acreage operated in 2009	6.141	5.705	0.435^**	6.132	6.052	0.080
Stream	= 1 if a river or stream borders or runs through the property	0.685	0.562	0.123^**	0.681	0.652	0.028
Livestock	= 1 if managed livestock in 2009	0.411	0.509	-0.098^*	0.417	0.408	0.009

Note: Statistical significance based on a two-group mean-comparison t-test.
↵* Significant at the 95% level;
↵** significant at the 99% level.