Comparisons of Manure Comparisons of Manure, Compost, and ...
Comparisons of Manure Comparisons of Manure, Compost, and ...
Comparisons of Manure Comparisons of Manure, Compost, and ...
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Comparing Yields Using Fertilizer<br />
Annual fertilizer rates<br />
(lb/A) 33-30-30<br />
(1930-1967), <strong>and</strong> 60-<br />
30-30 (1968-2000).<br />
<strong>Manure</strong> applied every<br />
4th 4 year at rates <strong>of</strong><br />
120 lb/A (1930-1967)<br />
<strong>and</strong> 240 lb/A (1968-<br />
2000).<br />
Grain Yieeld<br />
(bu/AA)<br />
45<br />
40<br />
35<br />
30<br />
25<br />
20<br />
15<br />
vs. M<strong>Manure</strong><br />
Comparing Winter Wheat Yields Using<br />
Fertilizer or <strong>Manure</strong> from 1930 - 2000<br />
<strong>Manure</strong><br />
Fertilizer<br />
1930-1937<br />
1937-1947<br />
1948-1957<br />
1958-1967<br />
1968-1977<br />
1978-1987<br />
1988-1997<br />
1998-2000<br />
Year<br />
Data source: Magruder Plots, Oklahoma State University
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