1. Smart fertilization day 2017
11/09/2018
Smart fertilization day 2017
Jan Rinze van der Schoot (VCU foddergrasses)

2. Presentation From more land to higher quality of land
Avoid soil compaction
Neutralize soil compaction
Overseeding in stead of resowing
Species and varieties with more roots
Some WUR Projects Smart Farming

3. Some PPS projects grassland
PPS Amazing Grazing (grass growth model and yield)
zing-4.htm
PPS Precisielandbouw 2.0 (real time data from sensors)
PSS Ruwvoer en bodem
Resultaten/Projecten/PPS-Ruwvoerproductie-en- bodemmanagement-1.htm

4. Perennial ryegrass rooting max 20 cm?

5. Rooting of grasses Other species with deeper roots like tall fescue
Most species suitable for only mowing
Most common Lolium perenne
Suitable under grazing
Differences in rooting between varieties?

6. Clover

7. Research together with LBI
Two trials of the Dutch Variety List for fodder grasses
Experiment I: mowing
8 applied Lp varieties
2 Production levels * 2 earliness classes * 2 ploidies
Experiment II: mowing + grazing
8 applied Lp varieties (other than in Exp. I)
2 Production levels * 2 soil cover classes * 2 ploidies
Grass production during trials (3 years)
Root biomass at the end of the trials

8. We found no trade-off with grass yield

9. Lp varieties (inspired by Crush e.a. 2005)

10. Soil compaction (Herman de Boer)

11. Some results

12. Overseeding of grassland
Quality of permanent grassland can decrease
Resowing?
Loss of organic matter and nutrients
Overseeding with ‘good’ grasses
New genetics
Deeper rooting grasses
Solve the problem why the grassland quality was bad

13. Amazing Grazing (Idse Hoving)
Measuring grass growth
Three trials; N-levels
Observations
Yield
Nearby (Cropscan, Fielddoc)
Remote (Drone, satellite)
Modelling
Compare yield (real and sensor)
Growth prediction in the future

14. Results so far and some remarks
Tools are promising but must improve
Not sure of good relations
Prediction should be 5-10 days ahead
Minimum input for user needed

15. Precision agriculture 2.0 (Corné Kempenaar)
Soil, crop and yield monitoring (looking for variation)
Place specific management (fertilization, diseases)
Selective harvest
Research for new sensors and uses
Big data use

16. Akkerweb

17. Mijn akkerweb

18. Use of machines With most machines you can deliver good work
Know how to use it
Know when not to use it
Low pressure does not mean you can use the machine all the time
Controlled traffic (permanent tracks/vaste rijpaden)
Also for grassland?

19. Thank you for your attention!
11/09/2018
Thank you for your attention!
To explore
the potential
of nature to
improve the
quality of life