Crop Monitoring

Parallel crop monitoring activities focused on individual plants within established plots and the crop at paddock scale.

Importantly, the project linked these pictures of crop development to better understand how variability can be assessed and potentially managed.

The schedule of measurements included:

Crop Monitoring Programme
Stage Date Factor Technology
Preplant July Soil spatial variability EM38
Surface flows OptiSurface
August Soil pH Manual sampling
Soil Fertility Manual sampling
Soil NIR MicaSense
Seed viability Lab test
Planting August Penetration resistance Manual
Soil structure Aggregate Stability
Soil porosity/infiltration Manual sampling
Soil condition VSA
Soil moisture Decagon
Emergence* August Fresh mass Individual plants
Dry matter Individual plants
Population Sample plots
Canopy status NDVI GreenSeeker
Canopy status GroundCover App
Three leaf September Leaf count Individual plants
Leaf area Individual plants
Fresh mass Individual plants
Dry matter Individual plants
Radiation interception SunScan
Population Sample plots
Canopy status NDVI GreenSeeker
Canopy status GroundCover App
Five leaf October Leaf count Individual plants
Leaf area Individual plants
Fresh mass Individual plants
Dry matter Individual plants
Radiation interception SunScan
Population Sample plots
Canopy status NDVI MicaSense
Canopy status NDVI Greenseeker
Canopy status GroundCover App
Bulbing October Leaf count Individual plants
Leaf area Individual plants
Fresh mass Individual plants
Dry matter Individual plants
Radiation interception SunScan
Bulbing date/size Individual plants
Population Sample plots
Canopy status NDVI MicaSense
Canopy status NDVI GreenSeeker
Canopy status GroundCover App
NDVI Satellite
Top Down December Leaf count 15 plants
Leaf area Individual plants
Fresh mass Individual plants
Dry matter Individual plants
Radiation interception SunScan
Bulbing date/size Individual plants
Population Sample plots
Canopy status NDVI MicaSense
Canopy status GroundCover App
Lifting January Top down or not Individual plants
Plant weight Individual plants
Canopy status NDVI GreenSeeker
Canopy status GroundCover App
Harvest January Leaf mass Individual bulbs
Bulb diameter Individual bulbs
Bulb fresh mass Individual bulbs
Skin number 15 Individual bulbs
Skin density 15 Individual bulbs
After Storage TBC Skin number Individual bulbs
Skin density Individual bulbs
Sprout length Individual bulbs
Respiration Individual bulbs
Dry matter % Individual bulbs

* Emergence measurements repeated at 30, 50 and 90%

Many thanks to AgriOptics for providing a GreenSeeker unit for the season and Altus for the imagery from the UAV Micasense.