Partners Networking to Advance South Island Dairying

Soil Nutrient Management Project

The project is focussed on the monitoring and scientific measurement of the changes which are occurring on the properties.  

It is driven by farmers, rural professionals and scientists who want to understand the implications of adopting the new fertiliser management strategies being actively promoted by agribusiness organisations and known as Biological Farming.   Many of these approaches are promoted on the basis of research which is not supported by traditional scientists, and there is interest from all parties in collecting information that can be more readily understood. 

The information provided over the three years will include:

Environmental indicators (water use, soil condition, measures of available N, n leaching, pasture composition and soil biology, etc.)

Production indicators presented in a form that allows direct comparison with benchmarking data from the Lincoln University dairy farm (LUDF) and SIDDC monitor farms;

Economic indicators based on the Dairybase financial reporting.

The three year project life will allow the mapping of changes over time, and provide an independent evaluation of the differences and impacts of the two strategies.

Click here to view the end of season report to stakeholders for 2016/17 season
Click here to view the end of season field day presenation 2016/17 season
Click here to view Richard Gillespies 2017 - Soil nutrient management in dairy farming: a systems comparison - year 4 report

Click here to view the season to date field day presentation for December 2016
Click here
to view the end of season field day presentation for 2014/15 season
Click here to view the December 2015 Soil nutrient management in dairy farming systems presentation - From the ground up.

For further Information about the project please contact: Glen Greer.  AERU, Lincoln University


Backtrack Dairies
 Weekly Summaries

  

Week ending - 21 February 2018  

Backtrack Dairies

Two farming systems. One Kinsey-Albrecht (Whakapono) and one conventional (Waiora). Both farms have a stocking rate of 3.3 cows/ha at peak.

Week Ending

14/02/17

12/02/18

Backtrack Dairies

Whakapono

Waiora

Whakapono

Waiora

Farm grazing ha

155

210

155

210

Peak Cows

523

697

523

697

Stocking Rate (cows in milk/ha)

3.3

3.2

3.3

3.2

Cows in Milk

516

675

509

671

% of cows in Sick Herd

0.5

0.5

0.6

0.9

Cows in Vat

513

672

505

665

Ave. Pasture Cover

2440

2550

2441

2456

Ave. Pasture Growth

57

54

63

57

Area Grazed

7.87

10.13

7.71

8.81

Grazing Interval

20

21

20

24

Pasture Intake (est kgDM/cow)

22

21

23

18

Grass Silage Fed (kgDM/cow)

0.0

0.0

0.0

0.0

Grain/PKE Fed (kgDM/cow)

1.0

1.0

1.0

1.0

Total Fed KgDM/cow

23

22

24

19

Milk Solids (Kg/cow/day)(inclu calf milk)

1.72

1.70

1.72

1.66

MS/ha/day

5.71

5.44

5.63

5.27

Nitrogen applied (kg N/ha)

11

11

0

0

Rainfall (mm for week)

2

2

135

135

Irrigation applied (mm for week)

29

32

11

11

Soil Temperature at 9am

21

22

17

17

Soil Moisture (between 65-76%)

93

85

100

83

Cell count (000’s)

148

150

122

115

Mastitis Cases (%)

0.8

0.0

0.0

0.1

Lameness Cases (%)

0.0

0.3

0.0

0.6

Body Condition Score

4.4

4.4

4.4

4.4

Totals To Date

 

 

 

 

Milk Solids to factory

145612

188617

164441

213241

Milk Solids inclu calf milk

153478

198130

172307

222754

MS/ha

936

894

1057

1011

MS/cow (peak cows)(inclu calf milk)

293

284

329

320

Nitrogen applied (kg N/ha)

95

108

95

108

Supplements Fed (kg/cow)

372

376

392

396

Deaths %

2.9

2.9

3.1

3.0

Culls %

1.7

2.2

2.9

2.6

Mastitis %

11.3

9.3

11.3

9.3

Lameness %

5

6

5

6

 Summary  

  • Rotation length at present is at 20-22 days.
  • Irrigation continues to keep up with dry period.
  • Irrigation for k-lines and pivots as per moisture meter.
  • 135mm of rain this week. Very wet.
  • Maintenance fertiliser being put on. Pasturemag 5K on Waiora at a rate of 401kg/ha. This includes 1kg/ha of selenium. Whakapono has put on annual fertiliser with nitrogen.
  • The plan for fertiliser plan for this season is to have both farms put on no more than 100kg/ha of N for the season.
  • Waiora is now going to exceed this as the first round of fertiliser has been put on with a different product than what was initially planned. Interestingly it did not lift the cover to above expected levels.
  • To date the spend for Waiora has been $90,377.30 = $430/ha. There will also be more maintenance fertiliser go on in Autumn as we didn’t want to put so much K on in one hit.
  • And on Whakapono the spend has been $80,840.51 = $521.55/ha.
  • We have been pre-mowing paddocks to keep on top of pasture quality. All of Waiora has been mown and nearly all of Whakapono apart from 2 paddocks has been mown. Ironically the silage paddocks need to be done again.
  • We have oversown all the paddocks that we calved on – with winter active ryegrass and plantain.
  • Only 20 odd bulls and Hereford calves left on farm.
  • Herd test done – see results table above.
  • Had first scan for mating – Waiora 677 scanned – early 444 late 135 total to recheck 98 – 14.5% to recheck. Whakapono 516 scanned – early 347 late 108 total to recheck 61 – 12% to recheck.

Click here for the full weekly summary - 21 February 2018

Previous Weeks Summaries 

 2017/18 Season
  31 Jan   29 Nov        
  24 Jan 27 Dec 22 Nov   27 Sep 30 Aug  
21 Feb  17 Jan 20 Dec 15 Nov 25 Oct 20 Sep 23 Aug   
14 Feb  10 Jan 13 Dec 8 Nov 18 Oct 13 Sep 16 Aug   
 7 Feb 3 Jan 6 Dec 1 Nov 11 Oct 6 Sep 9 Aug Jun/Jul 17
 2016/17 Season
    29 Mar              
24 May 17 26 Apr 17 22 Mar   25 Jan 17     26 Oct    
17 May 17 19 Apr 17 15 Mar 22 Feb 18 Jan 17 21 Dec 16 30 Nov 19 Oct    
10 May 17 12 Apr 17 8 Mar 15 Feb 11 Jan 17 14 Dec 16 16 Nov 12 Oct    
3 May 17   1 Mar 7 Feb 4 Jan 17 7 Dec 16 9 Nov 5 Oct Sept 16 Aug 16

End of season summary 2016/17


2015/16 Season

    30 Apr 16          
    23 Apr 16 26 Mar 16 27 Feb 16 30 Jan 16 27 Dec 15  
  21 May 16 16 Apr 16 19 Mar 16 20 Feb 16  17 Jan 16 20 Dec 15 29 Nov 15
  14 May 16 9 Apr 16 12 Mar 16 13 Feb 16 10 Jan 16 13 Dec 15 23 Nov 15
Jun/Jul 16 7 May 16 2 Apr 16 5 Mar 16 6 Feb 16 3 Jan 16 6 Dec 15 17 Nov 15

End of season summary 2015/16

Pasture Analysis Report - March 2016
Pasture Analysis Report - February 2016