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Soil Organic Matter Accumulation at the George Jones Farm:

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floyd
18 diapositives · 359 Views · Mar 21, 2014

This study investigates soil organic matter (SOM) accumulation at the George Jones Farm by comparing various organic treatment methods against conventional management. Conducted by Nathaniel Decker, Kate Merrick, and Tina Bosch on December 10, 2003, the research emphasizes the importance of SOM in enhancing soil fertility, particularly for organic farming as part of the OSAP initiative. The methods included soil core sampling and loss-on-ignition to analyze SOM levels across different treatment types, aiming to understand the impact of organic amendments on soil quality.

#muck #mould #mold #bacillus globigii #bacillus subtilis #grass bacillus #hay bacillus #litter
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  1. Soil Organic Matter Accumulation at the George Jones Farm: A comparison of organic treatments with natural processes and conventional management December 10, 2003 Nathaniel Decker, Kate Merrick, Tina Bosch

  2. SOM and Organic Farming • Soil Fertility • Importance for Organic vs. Conventional Farming • OSAP aims to increase SOM • Treatment Types

  3. Treatments Note: C/M- COVER CROPPED AND MOWED FOR 3 YEARS CHX- CHICKEN TRACTOR LM- LEAF MULCH XLM- EXTRA LEAF MULCH M- MANURE 1,2- YEARS IN CULTIVATION

  4. SOM and Organic Farming • Soil Fertility • Importance for Organic vs. Conventional Farming • OSAP aims to increase SOM • Treatment Types • OSAP would like to know what effects the organic amendments used have on SOM

  5. Objectives and Hypotheses • Organic management increases SOM - conventional management - pre-OSAP SOM • SOM content will be higher in proportion to amount of organic amendments - GH>N & S Beds> Orchard • Will the Wetland Edge also increase SOM?

  6. Methods • Soil cores • Loss-on-ignition • Sampling sites

  7. Site Map

  8. North Beds South Beds

  9. OSAP SOM 10% A 9% 8% 7% B, C 6% B B, c B, c B 5% SOM Content C 4% 3% 2% 1% 0% North Beds South Beds Wetland Edge Fallow Field Neighbor Orchard Greenhouse Beds Results

  10. OSAP SOM 10% A 9% 8% 7% B, C 6% SOM Content B B, c B, c B 5% C 4% 3% 2% 1% 0% North Beds South Beds Wetland Edge Fallow Field Neighbor Orchard Greenhouse Beds Analysis • Greenhouse – high • Fallow Field – low • No significant differences among treatments • Neighbor – lower than GH but not other organic treatments • Wetland indistinguishable from treatments • SOM increased since 2000

  11. SOM in 2000 at OSAP

  12. Recommendations/Lessons • Experimental setup would be helpful - effect of different crops - cause and effect in GH

  13. Shout Outs • Yay Greenhouse! • Yay Amendments! • Further study to determine precise mechanisms for SOM increase

  14. Acknowledgments JP and his lab Brad and his farm Becca and her car A Group Phoenix Production