Sustainable Weed Management Strategies Know your
Description: Sustainable Weed Management Strategies Know your Weeds ID your weeds in your field Be sure you want to get rid of it They do have a role: Holding water Creating organic matter Providing cover Habitat for beneficial insects Weeds are plant
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slide1. Sustainable Weed Management Strategies<br>
slide2. Know your Weeds ID your weeds in your field
Be sure you want to get rid of it
They do have a role:
Holding water
Creating organic matter
Providing cover
Habitat for beneficial insects
“Weeds are plant we have not yet found a use for.”
“Weeds are any plant growing in a space intended for another.”<br>
slide3. Tools for Control Don’t bring weed seeds onto the farm
Nutrients brought onto the farm
Raw manure will have seeds
Instead of manure -- Use compost!
Turn the pile often to get the temp even throughout and kill seeds
Be careful of source material
Mulches
Don’t use hay
Straw is better<br>
slide4. What can I compost? Animal manures
Straw, hay
Vegetable matter
Yard debris
Wood shaving/chips
Newspaper
Fruit and vegetable wastes<br>
slide5. Organic Production
Compost non-animal materials Plant residues, etc
No specific composting regulations<br>
slide6. Organic Production
Compost with animal materials Regulations for using compost that contains animal materials are more specific.
Required minimum temperatures
Required turning times
Required C:N ratio<br>
slide7. Don’t let weeds go to seed! Early cycle weed control
Is it worth continued harvesting from a field to justify continued weed management?
Hand weeding is expensive
$200-$700/Ac<br>
slide8. Cultivating Expensive to control in row
Cultivate on both sides of row
Shallow tillage
Brings smallest amount weeds to the top
Planting techniques will help the crop out compete the weeds<br>
slide9. Cover crop the year before Use cover crop for weed suppression
Shallow tillage
Brings smallest amount weeds to the top Cover cropping with winter peas for organic dry land wheat production.<br>
slide10. Transplants Give 4+ week jump on weeds
Plant at the right planting density can give you weed free plots<br>
slide11. Irrigation Drip irrigation is more water efficient
Also by directing water to the crop it minimizes weed germination and reduces need to cultivate<br>
slide12. Timing of Cultivation Cultivate as soon as you can
Small weeds easier than big weeds to remove
Do not irrigate right after cultivation
Depth of cultivation
Depends on weed species<br>
slide13. Equipment A large part of controlling weeds is recruitment of the appropriate technology
The following is a short survey of the available equipment.<br>
slide14. Hand Tools Photos provided by D. Muehleisen<br>
slide15. Hand Tools Photos provided by D. Muehleisen<br>
slide16. Flamer<br>
slide17. Lely Tine Weeder Specially suitable for weeds with underground rhizomes
Bring rhizomes to surface and causes them to desiccate
Timing is critical<br>
slide18. Bush hog Rotary mower
Cutting cover crop
Mowing weeds before setting seeds Photos provided by D. Muehleisen<br>
slide19. Summary Know your weed problems
Don’t introduce new weeds
Eliminate spread of existing weeds
Compete with them – cover crops, the main crop (spacing, timing, etc.)
Use a variety of tools depending on situation (cultivators, flamers, hand tools)<br>
slide20. Reading and Assignment Reading for Next Week
New Organic Grower - Chapter 24
Assignments
Complete Pest Management and Weed Management in Whole Farm Plan
Compile the elements of sections I, II, IV and V from the Whole Farm Plan Template.
Bring in a hard copy for review next week<br>
slide2. Know your Weeds ID your weeds in your field
Be sure you want to get rid of it
They do have a role:
Holding water
Creating organic matter
Providing cover
Habitat for beneficial insects
“Weeds are plant we have not yet found a use for.”
“Weeds are any plant growing in a space intended for another.”<br>
slide3. Tools for Control Don’t bring weed seeds onto the farm
Nutrients brought onto the farm
Raw manure will have seeds
Instead of manure -- Use compost!
Turn the pile often to get the temp even throughout and kill seeds
Be careful of source material
Mulches
Don’t use hay
Straw is better<br>
slide4. What can I compost? Animal manures
Straw, hay
Vegetable matter
Yard debris
Wood shaving/chips
Newspaper
Fruit and vegetable wastes<br>
slide5. Organic Production
Compost non-animal materials Plant residues, etc
No specific composting regulations<br>
slide6. Organic Production
Compost with animal materials Regulations for using compost that contains animal materials are more specific.
Required minimum temperatures
Required turning times
Required C:N ratio<br>
slide7. Don’t let weeds go to seed! Early cycle weed control
Is it worth continued harvesting from a field to justify continued weed management?
Hand weeding is expensive
$200-$700/Ac<br>
slide8. Cultivating Expensive to control in row
Cultivate on both sides of row
Shallow tillage
Brings smallest amount weeds to the top
Planting techniques will help the crop out compete the weeds<br>
slide9. Cover crop the year before Use cover crop for weed suppression
Shallow tillage
Brings smallest amount weeds to the top Cover cropping with winter peas for organic dry land wheat production.<br>
slide10. Transplants Give 4+ week jump on weeds
Plant at the right planting density can give you weed free plots<br>
slide11. Irrigation Drip irrigation is more water efficient
Also by directing water to the crop it minimizes weed germination and reduces need to cultivate<br>
slide12. Timing of Cultivation Cultivate as soon as you can
Small weeds easier than big weeds to remove
Do not irrigate right after cultivation
Depth of cultivation
Depends on weed species<br>
slide13. Equipment A large part of controlling weeds is recruitment of the appropriate technology
The following is a short survey of the available equipment.<br>
slide14. Hand Tools Photos provided by D. Muehleisen<br>
slide15. Hand Tools Photos provided by D. Muehleisen<br>
slide16. Flamer<br>
slide17. Lely Tine Weeder Specially suitable for weeds with underground rhizomes
Bring rhizomes to surface and causes them to desiccate
Timing is critical<br>
slide18. Bush hog Rotary mower
Cutting cover crop
Mowing weeds before setting seeds Photos provided by D. Muehleisen<br>
slide19. Summary Know your weed problems
Don’t introduce new weeds
Eliminate spread of existing weeds
Compete with them – cover crops, the main crop (spacing, timing, etc.)
Use a variety of tools depending on situation (cultivators, flamers, hand tools)<br>
slide20. Reading and Assignment Reading for Next Week
New Organic Grower - Chapter 24
Assignments
Complete Pest Management and Weed Management in Whole Farm Plan
Compile the elements of sections I, II, IV and V from the Whole Farm Plan Template.
Bring in a hard copy for review next week<br>