Year: 2006
Type: article
Abstract: An issue when seeking to identify rotation choice is persistence in yield‐enhancement and input‐saving carry‐over effects. Focusing on carry‐over length and the monoculture decision, we use quasi‐convexity of choice functions to develop price‐independent and price‐dependent principles concerning rotation structure. Iowa corn‐soybean rotation data suggest corn has one‐year memory. For corn, soybeans in the prior year is yield increasing (16.5 bu./ac.) and nitrogen saving (51 lb./ac.). The hypothesis that soybean has two‐year memory cannot be rejected. Corn in the prior year (two years) increases yield by 7 bu./ac. (11.6 bu./ac.). We simulate to find price and practice subsidy levels that support different rotations.
Author: David A. Hennessy
Institution: Iowa State University
Language: English
Subfield: Safety Research
Field: Social Sciences
Domain: Social Sciences
SDG: Zero hunger
Open Access status: green
OpenAlex ID: W2096943686