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Trends in Agriculture in the LEASEQ Watersheds, 1975–1995

R. Peter Richards*,a, David B. Bakera and Donald J. Eckertb

a Water Quality Laboratory, Heidelberg College, 310 E. Market Street, Tiffin, OH 44883
b School of Natural Resources, The Ohio State University, 2021 Coffey Road, Columbus, OH 43210-1085



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  		Fig. 1. Trends in farmland, number of farms, and average farm size, 1976–1995.

 


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  		Fig. 2. Trends in conservation tillage, 1980–1995. (NT: no-till, MT: mulch-till.)

 


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  		Fig. 3. Trends in enrollment in the Conservation Reserve Program (CRP). The long bar indicates the number of farm acres in a given year, scaled to fit by dividing by 10. In the Maumee basin in 1995, for example, CRP hectares were 5.1% of all farm hectares.

 


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  		Fig. 4. Trends in application of treatment to highly erodible land.

 


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  		Fig. 5. Trends in hectares devoted to corn, soybean, wheat, and hay, 1976–1995.

 


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  		Fig. 6. Trends in yields per hectare for corn, soybean, wheat, and hay, 1976–1995.

 


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  		Fig. 7. Trends in fertilizer sales, 1971–1995.

 


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  		Fig. 8. Trends in manure production, 1975–1995.

 




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The SCI Journals Agronomy Journal Crop Science
Vadose Zone Journal Journal of Plant Registrations
Journal of Natural Resources
and Life Sciences Education		 Soil Science Society of America Journal
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