@inproceedings{4da6acde902c4e13ae191eeb43e83a4d,
title = "Site-specific treatment responses in on-farm precision experimentation",
abstract = "There is a large body of research on characterizing field variability of soil characteristics and their impact on crop yields. In contrast, site-specific information about crop responses to agronomic treatments is less frequent. On-farm precision experimentation (OFPE) brings important information to understand the spatial variation of crop response to agronomic practices and thus to improve agronomic decisions. The objective of this work was to investigate the spatial variability of corn yield responses to nitrogen and seed rates using OFPE in four fields in the US Midwest. Geographically-weighted regression was applied to generate local regression coefficients, which were used to delineate response zones in each field. The results showed the existence of great potential to adjust the rates of these inputs according to the response of each zone identified by the proposed method. The results of this study can be applied to re-evaluate expectations on variable rate prescriptions guided largely by soil and variability.",
keywords = "Chessboard design, Geographically-weighted regression, Nitrogen, Yield response functions, Zea mays L",
author = "Trevisan, {R. G.} and Bullock, {D. S.} and Martin, {N. F.}",
note = "Publisher Copyright: {\textcopyright} Wageningen Academic Publishers 2019; 12th European Conference on Precision Agriculture, ECPA 2019 ; Conference date: 08-07-2019 Through 11-07-2019",
year = "2019",
doi = "10.3920/978-90-8686-888-9_114",
language = "English (US)",
series = "Precision Agriculture 2019 - Papers Presented at the 12th European Conference on Precision Agriculture, ECPA 2019",
publisher = "Wageningen Academic Publishers",
pages = "925--931",
editor = "Stafford, {John V.}",
booktitle = "Precision Agriculture 2019 - Papers Presented at the 12th European Conference on Precision Agriculture, ECPA 2019",
}