Submitted to: American Peanut Research and Education Society Proceedings
Publication Type: Abstract Only
Publication Acceptance Date: April 15, 1996
Publication Date: N/A
Interpretive Summary: INTERPRETIVE SUMMARY NOT REQUIRED.
Technical Abstract: Fall paratill-bedding, winter cover crops, and chemical control for soilborne diseases, were shown to provide promising new alternatives to moldboard plowing. These strategies reduced trips over the field from as many as 9 to as few as 4. In 1994 reduced tillage main plots were planted into killed wheat stubble and included treatments for strip-tillage, paratill, and no-till. Secondary tillage subplots included slitting between rows, chisel-cultivating, and no tillage. In 1995 two tests were conducted, each under full and reduced irrigation strategies, and included main tillage treatments for paratill/bedding, bedding w/o subsoiling, and strip-tilling. Subplots for the two tests included secondary tillage and Folicur for control of soilborne diseases. A third study in 1995 compared Fall paratill/bedding + Rymin rye cover to Spring moldboard plowing, w/ and w/o Folicur in a well-rotated, non-irrigated, loamy sand field. Results in the latter study showed significant increase in yield for the reduced (4454 lb/A_ compared to conventional (3692 lb/A) tillage. Differences were attributed to reduced runoff, improved soil structure, and low disease pressure. In the former study, yields ranged from 140 to 673 lb/A, depending on disease pressure. The lowered cost for reducing trips over the field were sometimes offset by addtional cost for herbicides. However, long term fix costs are reduced.