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Comparing Newer vs Older Technologies - Management Systems in a 3-Year Study

Gordon R. Tupper, H. R. Hurst, H. C. Pringle, III and M. W. Ebelhar


 
ABSTRACT

This study compared results of some of the new production technologies to some of the older production technologies. In-row subsoiling was compared to 45 degree subsoiling to the row. The newer planting pattern of 32-inch rows in a 2x1 skip-row was compared to solid planted 40-inch rows. A modified no-till production system was compared to a conventional tillage system with hipping and cultivation. It also compared new Roundup-Ready® varieties and a BXN variety to standard cotton varieties. Subsoiling at a 45 degree angle to the row increased lint yields in both row spacings in 1998 and in the 32-inch rows in a 2x1 skip-row planting pattern over the 3-year study as compared to a modified no-till production system with in-row subsoiling but without cultivation. The solid planted 40-inch rows increased lint yields in 1997, 1998, and the 3-year average over 32-inch rows in a 2x1 skip-row planting pattern. Roundup Ready varieties did poorly except in 1999 as compared to conventional variety checks. Stv BXN 47 performed as well as its parent variety Stv 474 during the study. This study seemed to suggest that the skipped row in a 2x1 skip-row pattern on 32-inch rows should be subsoiled at a 45 degree angle to the row to allow for additional exploration of roots for nutrients and moisture.





Reprinted from Proceedings of the 2001 Beltwide Cotton Conferences pp. 600 - 602
©National Cotton Council, Memphis TN

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Document last modified XXXXXX, XXX XX 2001