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Cotton Reduced Tillage Systems ND Effect on Cost and Return

Robert Dobbs, Normie Buehring, Mark Harrison, Stan Spurlock, and John Black

ABSTRACT

Seven tillage systems were evaluated (1999-2002) in continuous cotton and cotton following corn in a rotation system on a Marietta silt loam soil to determine their influence on input costs and net returns for 8 and 12-row production system. Total specified costs and net returns were affected by equipment size. The 8-row system averaged over tillage system, rotation, and years (2000-2002) showed 7% ($37/acre) more total specified cost per acre (included all costs except land, management, and overhead cost) and 35% ($40/acre) lower net returns above total specified costs than the 12-row system. Averaged over years and rotation, conventional tillage and ridge-till had lower total specified cost ($12 to $32/acre) and lower gross returns than all other tillage systems in both 8 and 12-row systems. This resulted in no difference in net returns for all tillage systems. There was a year by rotation interaction effect on net returns in both 8 and 12-row systems. The year 2000 was the only year where rotation net returns were higher than continuous cotton. Both continuous cotton and cotton following corn in rotation had higher net returns in 2000 and 2002 than 2001. The rotation showed $57/acre more net return than continuous cotton for both for both 8 and 12 row systems.





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Document last modified 04/27/04