Economic assessment of irrigated and nonirrigated soybean cropping rotations on a clay soil

Carl R. Dillon, Darla F. Rutherford, Terry C. Keisling, Lawrence R. Oliver
1999 Communications in Soil Science and Plant Analysis  
Experimentswere conductedin Keiser, Arkansas, on a Sharkey silty clay soil for 3 years to examine soybean, wheat, and grain sorghum rotations. Treatments also included selected variation of conventional versus no-till and alternative wheat residue management. Both irrigatedand nonirrigated strategieswere investigated. Agronomic results show that irrigated soybean yields average about 20 bu/A (1344 kg/ha higher than comparably treated nonirrigatedsoybeantreatments. Economicanalysis using
more » ... lysis using enterprise budgets reveals three top rotations, regardless of irrigation: continuous monocropped soybean, wheat fallow followed by monocropped soybean, and wheat-soybean double-cropped with burned wheat stubble. Statistical analysis demonstrates the profitability of irrigation and the dependence of the most economical crop rotation upon weather conditions. 19
doi:10.1080/00103629909370276 fatcat:anrfwprdgrfhlic6jlvkdixv3e