Optical sensors for variable rate nitrogen application in dairy pastures

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Title

Optical sensors for variable rate nitrogen application in dairy pastures

Content partner

Lincoln University

Collection

Lincoln University Research Archive

Description

Reducing the amount of nitrogen (N) fertiliser applied to dairy pastures down to agronomically optimised levels would have positive economic and environmental results. The ability of commercially available optical sensors to estimate biomass yield and foliar-N uptake in pastures was investigated. Vegetative indices (Simple Ratio, SR; Water Index, WI; and Normalised Difference Vegetation Index, NDVI) from two active optical reflectance sensors (N-Sensor, Yara; and Greenseeker, Trimble) were co...

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Format

Research Paper

Research format

Journal article

Date created

2017

Creator

Wigley, K / Owens, JL / Trethewey, JAK / Ekanayake, D / Roten, RL / Werner, A

URL

https://hdl.handle.net/10182/9431

Related subjects

pasture / nitrogen / optical sensors / Agricultural and Veterinary Sciences / Crop and Pasture Production / Fertilisers and Agrochemicals (incl. Application)

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