Abstract
Abstract Yield, and N uptake response to several rates of ? fertilizer applied to non‐tilled (NT) and plow‐tilled (PT) corn were compared for 3 years in an experiment conducted on Hagerstown silt loam (Typic hapludult, fine‐loamy, mixed, mesic) in central Pennsylvania. Insufficient moisture limited yields two of the three years of the study. The 3‐year average grain yields were significantly lower with NT than with PT at the 0 kg/ha broadcast N rate and higher with NT than PT at the upper two rates (150 and 200 kg broadcast N/ha). In the year when moisture did not limit yield potential, yields with NT were lower than with PT at the 0 kg/ha broadcast ? rate, but maximum yields were equal with both tillages. It was speculated that the greater maximum yields with NT in the drier years were due to the greater soil moisture availability with NT. Analysis of the 3‐year average quadratic‐linear plateau yield response to ? fertilizer rate functions for the two tillage systems indicated that the economic optimum ?...
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
