Now showing items 1-5 of 5
Assessing biomass yield of kale (Brassica oleracea var. acephala L.) fields using multi-spectral aerial photography
(Fertilizer and Lime Research Centre, 2015-02)
Aerial images were taken in June 2014 with a multispectral VIS/NIR camera of the canopy from 14 kale (Brassica oleracea var. acephala L.) fields in Canterbury, New Zealand before this forage was grazed by cows. Images ...
Photogrammetry for assessment of pasture biomass
(New Zealand Grassland Association, 2019-11-04)
New tools are required to provide estimates of pasture biomass as current methods are time consuming and labour intensive. This proof-of-concept study tested the suitability of photogrammetry to estimate pasture height in ...
Real-time, non-destructive and in-field foliage yield and growth rate measurement in perennial ryegrass (Lolium perenne L.)
(BMC (part of Springer Nature), 2019-07-10)
Background: In-field measurement of yield and growth rate in pasture species is imprecise and costly, limiting scientific and commercial application. Our study proposed a LiDAR-based mobile platform for non-invasive ...
Active optical sensing of canopies in pasture management
(NZ Grassland Association, 2015)
Commercial units of Active Optical Sensor (AOS) systems are designed for sensing arable crops to estimate the required amount of nitrogen fertiliser and are well established in intensive arable cropping systems in ...
Urine patch detection using LiDAR technology to improve nitrogen use efficiency in grazed pastures
In grazed dairy pastures, the largest N source for both nitrate (NO₃⁻) leaching and nitrous oxide (N₂O) emissions is urine-N excreted by the animals. Additional application of N on urine patches as fertilizer may increase ...