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Dryland Weeders
Jonathan Pavone, Martin Rose, Anthony Fiorille
Who is SRI Global?
 SRI is a non-profiting organization created in January of 2011, that promotes
the System of Rice Intensification, primarily for rice farmers in developing
countries.
 Their goal is to increase the productivity of irrigated rice and other crops in
these areas of need.
 They set agronomic principles to manage the rice plants, soil, water and
nutrients differently than what conventional agriculture recommends.
Problem Statement
 Design a dryland weeder to increase the productivity of
irrigated rice.
Design Criteria
 Easy to build
 Comfortable to use
 Robust
 Effective in multiple applications
 Cost effective
Specifics of design
 Distance between rows are 25 cm apart for rice. Other crops such as wheat
are 15-20 cm.
 The weight of this design must be in a reasonable range. The typical weight is
around 8kg.
 Materials that are used must be available to the local blacksmiths to limit
cost.
Machine Needs
 Digs up weeds
 Creates a light tilling for the soil
 Aerates soil
 Disperses water
 Creates balanced plot conditions
Upland vs. Lowland
Dryland
 Grown in dry areas
 Fed by rain
 Soil is kept moist
 Planting time is critical
 Crops mature quickly
Wetland
 Grown in flooded/marshy areas
 Fed by water grown in
 Soil is flooded
 Can be planted just about anytime
 Crops mature slower
Types of Dryland Weeders
Dryland Peg Weeder
 All components made with mild
steel
 Roller with two discs joined by a
steel rod
 V shaped blade mounted on the
arms
 Blade and arms can be adjusted for
convenience and depth
Wheel Hand Hoe
 All components made with medium
carbon steel
 Straight blade, reversible blades,
sweeps, V –blade etc. can all be
accommodated on the frame
 Cut and uproot weeds in a manner
that buries the weeds
Questions for SRI Global
 Do you have a list of generally used local materials?
 Where would be a good place to look for what materials and technologies are
available in these countries?
 What would seem like a reasonable production cost in U.S. currency and
Malaysian currency?
 Are there other organizations which might donate supplies or parts?
 Are you willing to buy our passports if we get the offer to visit these fine
folks?
Contact Information
 Alfred State Dryland Designers-Facebook Page
 Link-https://www.facebook.com/pages/Alfred-State-Dryland-
Designers/454282554670987
 Find us and like us to fallow our progress and learn more about our design.

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Dryland weeders

  • 1. Dryland Weeders Jonathan Pavone, Martin Rose, Anthony Fiorille
  • 2. Who is SRI Global?  SRI is a non-profiting organization created in January of 2011, that promotes the System of Rice Intensification, primarily for rice farmers in developing countries.  Their goal is to increase the productivity of irrigated rice and other crops in these areas of need.  They set agronomic principles to manage the rice plants, soil, water and nutrients differently than what conventional agriculture recommends.
  • 3. Problem Statement  Design a dryland weeder to increase the productivity of irrigated rice.
  • 4. Design Criteria  Easy to build  Comfortable to use  Robust  Effective in multiple applications  Cost effective
  • 5. Specifics of design  Distance between rows are 25 cm apart for rice. Other crops such as wheat are 15-20 cm.  The weight of this design must be in a reasonable range. The typical weight is around 8kg.  Materials that are used must be available to the local blacksmiths to limit cost.
  • 6. Machine Needs  Digs up weeds  Creates a light tilling for the soil  Aerates soil  Disperses water  Creates balanced plot conditions
  • 7. Upland vs. Lowland Dryland  Grown in dry areas  Fed by rain  Soil is kept moist  Planting time is critical  Crops mature quickly Wetland  Grown in flooded/marshy areas  Fed by water grown in  Soil is flooded  Can be planted just about anytime  Crops mature slower
  • 8. Types of Dryland Weeders Dryland Peg Weeder  All components made with mild steel  Roller with two discs joined by a steel rod  V shaped blade mounted on the arms  Blade and arms can be adjusted for convenience and depth Wheel Hand Hoe  All components made with medium carbon steel  Straight blade, reversible blades, sweeps, V –blade etc. can all be accommodated on the frame  Cut and uproot weeds in a manner that buries the weeds
  • 9. Questions for SRI Global  Do you have a list of generally used local materials?  Where would be a good place to look for what materials and technologies are available in these countries?  What would seem like a reasonable production cost in U.S. currency and Malaysian currency?  Are there other organizations which might donate supplies or parts?  Are you willing to buy our passports if we get the offer to visit these fine folks?
  • 10. Contact Information  Alfred State Dryland Designers-Facebook Page  Link-https://www.facebook.com/pages/Alfred-State-Dryland- Designers/454282554670987  Find us and like us to fallow our progress and learn more about our design.