Quantifying Corn Nitrogen Deficiency and Application Rate with Active Canopy Sensors
dc.contributor.author | Sawyer, John | |
dc.contributor.author | Barker, D. W. | |
dc.contributor.author | Barker, Daniel | |
dc.contributor.department | Agronomy | |
dc.date | 2018-02-18T08:52:24.000 | |
dc.date.accessioned | 2020-06-29T23:02:18Z | |
dc.date.available | 2020-06-29T23:02:18Z | |
dc.date.copyright | Fri Jan 01 00:00:00 UTC 2010 | |
dc.date.embargo | 2017-04-11 | |
dc.date.issued | 2010-01-01 | |
dc.description.abstract | <p>Precision agriculture technologies are an integral part of many crop production operations. However, implementation for N application has lagged, primarily due to lack of a viable system for variable N rate decisions. Active canopy sensors have been developed as a tool to determine plant N stress deficiency and provide an on-the-go decision for implementing variable rate. Two general approaches could be implemented. One is to plan on conducting canopy sensing each year, with a reduced N rate applied preplant, at planting, or early sidedress and then sensing conducted at mid-vegetative growth to determine additional application need. A second is to conduct sensing only if conditions result in N loss from the primary N application, or other factors change expected crop requirements. Both approaches could address variable N fertilization and seasonal circumstances.</p> | |
dc.description.comments | <p>This is a proceeding from <em>40th North Central Extension-Industry Soil Fertility Conference </em>26 (2010): 97. Posted with permission.</p> | |
dc.format.mimetype | application/pdf | |
dc.identifier | archive/lib.dr.iastate.edu/agron_conf/49/ | |
dc.identifier.articleid | 1046 | |
dc.identifier.contextkey | 10003175 | |
dc.identifier.s3bucket | isulib-bepress-aws-west | |
dc.identifier.submissionpath | agron_conf/49 | |
dc.identifier.uri | https://dr.lib.iastate.edu/handle/20.500.12876/4389 | |
dc.language.iso | en | |
dc.source.bitstream | archive/lib.dr.iastate.edu/agron_conf/49/0-IPNI_Permission.pdf|||Sat Jan 15 00:29:33 UTC 2022 | |
dc.source.bitstream | archive/lib.dr.iastate.edu/agron_conf/49/2010_Sawyer_QuantifyingCorn.pdf|||Sat Jan 15 00:29:34 UTC 2022 | |
dc.subject.disciplines | Agricultural Science | |
dc.subject.disciplines | Agriculture | |
dc.subject.disciplines | Agronomy and Crop Sciences | |
dc.subject.disciplines | Research Methods in Life Sciences | |
dc.title | Quantifying Corn Nitrogen Deficiency and Application Rate with Active Canopy Sensors | |
dc.type | article | |
dc.type.genre | conference | |
dspace.entity.type | Publication | |
relation.isAuthorOfPublication | 17ce8a78-56b3-47be-abcb-b22968be40f2 | |
relation.isAuthorOfPublication | 9c31ee99-d456-4aef-8e50-5c46e4e21cd7 | |
relation.isOrgUnitOfPublication | fdd5c06c-bdbe-469c-a38e-51e664fece7a |