Optical crop sensor for variable-rate nitrogen fertilization in corn

Title Optical crop sensor for variable-rate nitrogen fertilization in cornTitle (native language) Sensor óptico na fertilizaçao nitrogenada à dose variável no milho

Category Recording or mapping technologyReacting or variable rate technology

Short summary forpractitioners (Practiceabstract) in English)

Determining a vegetation index by an N-Sensor® ALS optical sensor with YARA software

Short summary forpractitionersWebsiteAudiovisual materialLinks to other websitesAdditional commentsKeywords Farming practiceAdditional keywords nitrogen, N-Sensor, optical spectrometry, cornGeographical location(NUTS) EU

Other geographicallocation Field tests were conducted in Brasil

Cropping systems Arable cropsField operations FertilizationSFT users Farmer | ContractorEducation level of users Apprenticeship or technical school educationFarm size (ha) 50-100

Scientific article

Title Optical crop sensor for variable-rate nitrogen fertilization in corn: II - Indices of fertilizer efficiency andcorn yield

Full citation Bragagnolo, J.; Amado, T.J.C.; Nicoloso, R.S.; Santi, A.L.; Fiorin, J.E.; Tabaldi, F. (2013). RevistaBrasileira de Ciencia do Solo, DOI:10.1590/S0100-06832013000500019

Effects of this SFTProductivity (crop yield per ha) No effectQuality of product No effectRevenue profit farm income No effectSoil biodiversity No effectBiodiversity (other than soil) No effectInput costs No effectVariable costs No effectPost-harvest crop wastage No effectEnergy use No effectCH4 (methane) emission No effectCO2 (carbon dioxide) emission No effectN2O (nitrous oxide) emission No effectNH3 (ammonia) emission No effectNO3 (nitrate) leaching No effectFertilizer use Some decreasePesticide use No effectIrrigation water use No effectLabor time No effectStress or fatigue for farmer No effectAmount of heavy physical labour No effectNumber and/or severity of personal injury accidents No effectNumber and/or severity of accidents resulting in spills property damage incorrectapplication of fertiliser/pesticides etc. No effect

Pesticide residue on product No effectWeed pressure No effectPest pressure (insects etc.) No effectDisease pressure (bacterial fungal viral etc.) No effect

Information related to how easy it is to start using the SFTThis SFT replaces a tool or technology that is currently used. The SFT is better than thecurrent tool no opinion

The SFT can be used without making major changes to the existing system disagreeThe SFT does not require significant learning before the farmer can use it disagreeThe SFT can be used in other useful ways than intended by the inventor no opinionThe SFT has effects that can be directly observed by the farmer disagreeUsing the SFT requires a large time investment by farmer agreeThe SFT produces information that can be interpreted directly disagree

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This factsheet was generated on 2018-Apr-03 11:57:19.