1. CSBP 2014 Trial Highlights West Midlands Group

2. 2014 Trial Program

3. WMG - nitrogen inhibitor trial Carnamah - K strategies trial Bolgart - long term K * lime trial

4. WMG Trial 2014 Aim To determine the value of urease inhibitors applied with urea and Flexi-N

5. Harvest Results

6. Summary Very strong and profitable response to 30 kg N (300% + ROI) No responses to urease inhibitors. Rain within 2 days of N application reduced any volatilisation. CSBP will continue to look at innovative products in the aim of increasing fertiliser use efficiency

7. Increasing K fertiliser use efficiency

8. Carnamah 2014 DepthK 0-1035 10-2016 20-30<15 30-40<15

9. Carnamah 2014 Treatment IBSBanded Z23 Trt(kg/ha)(L/ha)(kg/ha)(L/ha)NPK 1 - - - -000 2 - -89 Big Phos -0120 3 -50 Flexi-N85 Agstar Extra65 Flexi-N60120 4 -54 Flexi-N100 K-Till Extra65 Flexi-N601211 5 -54 Flexi-N118 'Hi K-Till Extra'65 Flexi-N601220 640 MoP50 Flexi-N85 Agstar Extra65 Flexi-N601220 780 MoP -89 Big Phos -01240 880 MoP50 Flexi-N85 Agstar Extra65 Flexi-N601240 Trial Design

10. Carnamah 2014 K uptake – 8 July

11. Carnamah 2014 Wheat Yield

12. Carnamah 2014 Nitrogen Use Efficiency

13. Carnamah 2014 Water Use Efficiency

14. Bolgart 2011- 2014

15. Bolgart 2011 pHPBIK Al 0-105.24225 1 10-204.23815 6 20-304.23617 9 30-40cm4.33615 8 Soil Test Results

16. Bolgart Trial Design LimeK Fertiliser 2011 & 20142011, 2012, 2013 and 2014Annual K Trt(t/ha)(kg/ha) 1 - -0 2 -140 K-Till Extra15 3 -60 MoP30 4 -120 MoP60 53.2 + 2.6 -0 6 140 K-Till Extra15 73.2 + 2.660 MoP30 83.2 + 2.6120 MoP60

17. Bolgart 2011 Wheat Yield

18. Bolgart 2012 Wheat Yield

19. Bolgart 2013 K uptake to 13 July

20. Bolgart 2013 Sowing Date

21. Bolgart 2013 Wheat Yield

22. Bolgart 2014 - wheat Lsd K 0.27*** Lsd Lim 0.19** Wheat Yield

23. Bolgart 2013

24. Ryegrass Population

25. Bolgart 2013 Soil K – Autumn 2013

26. Key Findings K-Till banded is more efficient than top dressed MOP. Dry conditions limit the effectiveness of topdressed K Good K supply will increase nitrogen and water use efficiency Applications of K fertiliser to deficient paddocks can reduce ryegrass populations Large amounts of K are needed to increase soil levels.