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26 May 2016 Corn yield components response to nitrogen fertilizer as a function of soil texture
Athyna N. Cambouris, Noura Ziadi, Isabelle Perron, Khaled D. Alotaibi, Mervin St. Luce, Nicolas Tremblay
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Abstract

Information on how soil texture and related soil properties affect corn (Zea mays L.) nitrogen (N) response is needed to improve N management in corn production. We conducted a study at 12-site yr in Quebec to assess the effect of N rate (0–250 kg N ha−1) and soil surface textural groups [clay, loam, sandy belonging to the gleysolic soil order (Sg), and sandy belonging to the podzolic soil order (Sp)] on corn grain yield, stover yield, total N uptake (TNU), nitrogen uptake efficiency (NUE), thousand kernel weight (TKW), test weight, and chlorophyll meter readings (CMR). Corn was more responsive to N rate in the clay soil textural group for most of the parameters due to lower soil N supply, and least responsive in the Sp group, except for test weight and CMR, due to possibly greater leaching in this group. The CMR at flowering accounted for 87%, 87%, 82%, and 25% of the variation in grain yield, TNU, TKW, and test weight, respectively. This study suggests that soil surface texture has a major influence on corn N response, but other soil properties such as drainage may also be important.

© Her Majesty the Queen in right of Canada 2016. Permission for reuse (free in most cases) can be obtained from RightsLink.
Athyna N. Cambouris, Noura Ziadi, Isabelle Perron, Khaled D. Alotaibi, Mervin St. Luce, and Nicolas Tremblay "Corn yield components response to nitrogen fertilizer as a function of soil texture," Canadian Journal of Soil Science 96(4), 386-399, (26 May 2016). https://doi.org/10.1139/cjss-2015-0134
Received: 17 December 2015; Accepted: 17 May 2016; Published: 26 May 2016
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KEYWORDS
corn yield
Nitrogen fertilization
soil texture
test weight
thousand kernel weight
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