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K.I.S.S. K.I.S.S.

K.I.S.S. - PowerPoint Presentation

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K.I.S.S. - PPT Presentation

Keep It Simple Sulphur Data Gleaned from Alberta Innovates Technology Futures Research Report Evaluation of Sulphur Compost Product as a Soil Modifier for Canola Growth Authors Dani Degenhardt AITF ID: 576763

sulphur soil 000 compost soil sulphur compost 000 cycle so4 years rates deficient growth plant harvest oxidation treatments bio

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Slide1

K.I.S.S.

Keep It Simple

Sulphur!!Slide2
Slide3

Data Gleaned from Alberta Innovates Technology Futures Research Report

Evaluation of Sulphur Compost Product as a Soil Modifier for Canola Growth

AuthorsDani Degenhardt (AITF)Kristine Wichuk (EWMCE)Eugene Dakin (Tervita)

Gleanings by Elston Solberg (SMI - Bio Cycle)Slide4

Bio-Cycle Premium Plus

Wide range of particles!! < 1 micron to 6,000+ micronsWorking to reduce the % large nuggets

Currently approximately:10% < 200 microns = Real FAST - yr 132% 200 to 1,000 m – Rapid -

yr

1/2/3

28% 1,000 to 2,000 - Moderate -

yr

2/3/416% 2,000 to 4,000 - Slow - yr 2/3/4/514% > 4,000 microns =

Real SLOW – yr 3/10Slide5

Bio-Cycle Premium Plus

Wide range of particles!! < 1 micron to 6,000+ microns

1 150 600 1,200 2,000 4,000 6,000

microns

Days

Days to 2 years

Weeks to 3-4 years

Months to 4-5 years

Months to 5-6 years

Months to 6+ yearsSlide6

> 2000

840 – 2000

420 – 840177 – 420125 – 17788 – 125

62 - 88Slide7

Logistics Trumps Agronomics

Grower Sustainability Story!!Slide8

Sulphur – Every Crop, Every Year!

Crop

Target Yield

S

Needed

S

Removed

Canola

6036

24Wheat

70

18

12

Peas

65

27

18

Malt, Oats,

Hay,

Etc

C-W = 21

lb

deficit

C-W-P = 39

lb

deficitSlide9

Lime Required per lb SSlide10

Data Gleaned from Alberta Innovates Technology Futures Research Report

Evaluation of Sulphur Compost Product as a Soil Modifier for Canola Growth

AuthorsDani Degenhardt (AITF)Kristine Wichuk (EWMCE)Eugene Dakin (Tervita)

Gleanings by Elston Solberg (SMI - Bio Cycle)Slide11
Slide12
Slide13

Selected Soil was NOT S deficient but extremely N deficient. Added urea was insufficient to optimize yields.

Direct Seeding was simulated.

This minimizes the potential for ES oxidationSlide14

Experimental Compost and Sulphur Treatments

Application rates were based on surface area.Slide15
Slide16
Slide17

Canola Biomass Yield

Total of 2 growth cycles averaged across all C and SC treatments

g/pot

+19.0 % Slide18

Sulphur Compost Effects on Plant Tissue Nutrient Content (%)

N, S, P,

Ca and Mg plant tissue nutrient concentrations increased with applied S compost. K decreased.

N was extremely deficient and likely reduced crop responses. Slide19

Sulphur Compost Effects on Plant Tissue Nutrient Content (ppm)

B, Cu, Fe,

Mn and Zn plant tissue nutrient concentrations increased with applied S compost. Slide20

Initial and Post experiment Soil Analysis

The huge jump in soil SO4-S indicates soil mixingSlide21

This test confirms the presence of Sulphur specific organisms in the compost material.Slide22

A reduction of soil pH reflects conversion of elemental S to plant available SO

4

-S.Slide23

Soil pH after Final Harvest

Compost and Sulphur Compost Rates

pHSlide24

Total Soil % S

Sulphur Rates

% S

Declining Total S values indicates conversion of elemental sulphur to SO4-S.Slide25

Soil SO4-S Content after each harvest

Sulphur Rates

S0

4

-S (ppm)

Low SO

4

-S after growth cycle 1 indicates poor oxidation with simulated direct seeding.

Soil mixing after cycle 1 harvest provided ES dispersion and rapid conversion to SO

4

-S.Slide26

Soil Sulphate S – Cycle 1

ppm

SO

4

-S found in soil after cycle 1 harvest - averaged across all C and SC treatments Slide27

Soil Sulphate S – Cycle 2

SO

4-S found in soil after cycle 2 harvest - averaged across all C and SC treatments

ppmSlide28

Final Net Soil Sulphate-S

p

pm SO4-S

0-5 cm depth

SO

4

-S is soil mobile. Significant additional SO

4-S would likely be found deeper in the pots.Slide29

My Conclusions from Study

Sulphur specific organisms were present in compost sources.

Simulated direct seeding placement greatly reduced Growth Cycle 1 oxidation (conversion to SO4-S). Sulphur compost increased biomass yield despite

soil NOT being

deficient in S

and

extremely

deficient in N. S compost increased the uptake of N, S, P, Ca, Mg, B, Cu, Fe, Mn and Zn. Only K

decreased.

Elemental S oxidation was significant after soil mixing prior to Growth Cycle 2 as evidenced by decreasing soil

pH and total S concentration coupled with

increasing SO4-

S with increasing S compost rates.

Sulphur Compost is an

effective

source of crop available sulphur when applied to optimized particle dispersion and soil contact.Slide30

K.I.S.S.

Keep It Simple

Sulphur!!Slide31

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