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Acknowledgements. Justin Dulaney (Coahoma Co.) Earl Kline (Bolivar Co.) Collier Tillman (Leflore Co.) Buddy Allen (Tunica Co.) Kirk Satterfield (Bolivar Co.). Tim Walker (MS DREC) Shane Powers (YMD) Lyle Pringle (MSU DREC) Jim Thomas (MSU ABE ret.). MAFES MS Rice Promotion Board

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Acknowledgements
Acknowledgements

Justin Dulaney(Coahoma Co.)

Earl Kline(Bolivar Co.)

Collier Tillman(Leflore Co.)

Buddy Allen(Tunica Co.)

Kirk Satterfield(Bolivar Co.)

  • Tim Walker(MS DREC)

  • Shane Powers(YMD)

  • Lyle Pringle(MSU DREC)

  • Jim Thomas(MSU ABE ret.)

  • MAFES

  • MS Rice Promotion Board

  • MS Water ResourcesResearch Institute

  • YMD

Support

Collaborators


2010 2012 on farm trials intermittent rice irrigation
2010-2012 On-Farm TrialsIntermittent Rice Irrigation

Varietal Response

  • 6 Clearfield rice varietiesusing 4 reps per variety.

  • Planted at the top (alternatingwet-dry) and bottom(~continuous flood) of paddy.

  • 150 lbs N per A applied.

  • Yield and milling quality.

  • Water use and pumping pattern.

  • Rainfall


2010-2012 Rice On-Farm Variety x Intermittent Irrigation Trials


2010 variety x intermittent irrigation trial clay soil w 5 wet drying cycles using 23 a in a
2010 Variety x Intermittent Irrigation TrialClay soilw/ 5 wet-drying cycles using 23 A-in/A

Rice yields were either unaffected (p > 0.05) or slightly higher (p < 0.05) for the plots subjected to intermittent flooding.


2010-2012 Rice On-Farm Variety x Intermittent Irrigation Trials


Pringle (1994)How much water does rice actually need?

Depending on soil and cultivar, rice needs ~14 to 25 A-in/A water per 80-day flood in Mississippi.

Avg. Evapo-

Transpiration Losses

Avg. Deep Percolation Losses

1991 rainfall was 66.5% of avg.

1993 rainfall was 97.9% of avg.

ET was linearly-related to biomassproduction



YMD (2009)

6-yr average water use in Mississippi rice production

For Existing Straight-Levee Rice

44

~60,000 A-ft savings if convert existing SL to Side-Inlet using 31 A-in

38

38

31

9

20

9

Pringle (1994): Water Use Requirements for Rice in the MS Delta


YMD (2009)

6-yr average water use in Mississippi rice production

For Existing Straight-Levee Rice

44

~109,000 A-ft savings if convert existing SL to Side-Inlet using 25 A-in

38

38

31

25

9

20

9

Pringle (1994): Water Use Requirements for Rice in the MS Delta


Conversion of all straight levee acres to optimized side inlet
Conversion of All Straight LeveeAcres to Optimized Side-Inlet


Conversion of all straight levee acres to optimized side inlet1
Conversion of All Straight LeveeAcres to Optimized Side-Inlet

Value assumes pumping 25 A-in/A,not total that would include rainfall capture.


44

38

31

22

20

SL + Side Inlet + Intermittent

Average Water Use by Different MS Rice Irrigation Systems

10-yr pumped average @ Dulaney Seed


44

38

31

21

20

SL + Side Inlet + Intermittent

Average Water Use by Different MS Rice Irrigation Systems

4-yr pumped average @ Kline Farms



Introduction to side inlet irrigation training video
Introduction to Side-Inlet Irrigation Training Video

Completed Nov 2012Free DVDs available

Side-Inlet = Foundational Practice


Co-written and reviewed by farmers

‘It takes an experienced crew of three about one hour to lay one roll of tubing, install gates, punch air holes, and begin initial flood.’

Justin DulaneyClarksdale, MS


Side inlet video available on dvd or on line
Side-Inlet Video Available on DVD or On-Line

http://msucares.com/crops/rice/index.html


Info Sheet

No. 1358

Now Available

http://msucares.com/pubs/infosheets_research/i1358.pdf


http://msucares.com/pubs/infosheets_research/i1358.pdf

242 depthgaugesbuilt anddistributed

to farmers

in 2012


Gauges help with flood management
Gauges Help with Flood Management

Top of Levee

Top of Levee

Emergency Overflow

Top of Gate

~12-in

4-in Freeboard for Rain Capture

4-in Controlled Flood

  • Maintain freeboard to maximize rainfall capture and to reduce runoff.


21st Century Bin Busters

Rice Harvest Competition

Reward and Recognize Innovation

Rice Harvest Competition

Harvest Index: Bushels Produced / A-in H2O (pumped + rainfall)


Estimated energy used by groundwater based irrigation systems per a in water delivered
Estimated Energy Used By Groundwater-Based Irrigation Systems per A-in Water Delivered

Remind farmers that:

For every inch of water not pumped, ~ 1 gallon/A diesel fuel is saved.


Remind farmers that flow meters are a valuable management tool
Remind Farmers that: Systems Flow Meters are a valuable Management Tool

Portable flow meter


Systematic approach to water and energy conservation in irrigation of row crops
Systematic Approach to Water and Energy Conservation in Irrigation of Row Crops

$

Crop Breeding

AgronomicManagement

Economics

State/FederalRegulations

Irrigation Technology


Row rice trial n 1
Row Rice Trial (N=1) Irrigation of Row Crops

Runoff

Irrigation added: 39 A-in/A Days less than full-flood: 88

Rainfall received: 15 in Water-use index: 4.2 bu/A-in

Yield: 165 bu/A (dry)


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