Now showing items 1-8 of 8
A review of practices in precision application of granular fertilisers
There is an implicit assumption in cited literature on precision agriculture (PA) that spreading of fertiliser is performed perfectly in the field leading to uniform application, this is not true. Variation can be large ...
FEASIBILITY STUDY, EXTENDING THE SWATH WIDTH OF TOPDRESSING AIRCRAFT TO REDUCE STRIPING OF FERTILISER MIXES
Fertiliser mixes of magnesium oxide coated urea and super phosphate require high application rates 250kg/ha - 500kg/ha. These rates are inclined to clog spreaders reducing their efficiency and compromising operational ...
The classification of hill country vegetation from hyperspectral imagery
(Fertilizer & Lime Research Centre, 2017-04-10)
Remotely sensed hyperspectral data provides the possibility to categorise and quantify the farm landscape in great detail, supplementing local expert knowledge and adding confidence to decisions. This paper examines the ...
Improving aerial topdressing in New Zealand through particle ballistics modelling and accuracy trials
(Fertilizer & Lime Research Centre Massey University, 2016-06-01)
Fixed wing aircraft are utilised in New Zealand to apply dry bulk fertiliser on hill country farms. The fertiliser is most often applied manually as a blanket rate over the entire farm. Previous study indicates that this ...
Measuring the spread patterns of spreaders under normal field conditions compared to test conditions
(Fertilizer and Lime Research Centre, 2016-06-01)
Integration of precision farming data and spatial statistical modelling to interpret field-scale maize grain yield variability in New Zealand
Spatial variability in soil, crop, and topographic features, combined with temporal variability in weather can result in variable annual yield patterns within a paddock. The complexity of interactions between these ...