PROFIT POTENTIAL USING SPLIT PIVOT IRRIGATION STRATEGIES IN COTTON PRODUCTION. Bob Glodt. and Layton Schur

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1 PROFIT POTENTIAL USING SPLIT PIVOT IRRIGATION STRATEGIES IN COTTON PRODUCTION Bob Glodt and Layton Schur

2 Discussion Topics Split pivot irrigation strategies with 200 gallon per minute irrigation potential. Parameters and production guidelines for using split pivot irrigation strategies. Variable cost breakdown and profit potential when irrigating using a split pivot production strategy grower examples of using split pivot irrigation strategies.

3 COTTON MANAGEMENT GUIDELINES FOR SPLIT PIVOT IRRIGATION STRATEGIES

4 DEFINING THE PARAMETERS WATER DELIVERY MUST BE APPLIED IN ACCORDANCE TO CROP DEMAND. IRRIGATION MUST BE APPLIED STRATEGICALLY. WE MUST UNDERSTAND THE RELATIONSHIP BETWEEN YIELD POTENTIAL AND WATER.

5 PRE-WATER AS CLOSE TO PLANTING AS POSSIBLE TO A DEPTH OF 18-24

6 COTTON WATER DEMAND AT 100% OF PET Inches Per Day emergence first square first bloom first open boll maturity Days After Planting

7 PRE-FLOWER IRRIGATION STRATEGY Inches Per Day Maintain Adequate Moisture in Root Zone emergence first square first bloom first open boll maturity Days After Planting

8 FLOWER TO 1 ST OPEN BOLL IRRIGATION STRATEGY FILL PROFILE % OF PET Inches Per Day emergence first square first bloom first open boll maturity Days After Planting

9 Irrigation Capacity During Peak Water Demand in Relationship to Potential Evapotranspiration for Cotton % PET PET Inches/Wk Inches/ % of PET 90% % %

10 PUSH WATER DEEP INTO THE SOIL PROFILE LEPA

11 REVIEW OF IRRIGATION STRATEGY Irrigation Pre-Water Pre-Bloom One Irrigation Prior to PET Irrigations PET Irrigations Rainfed Irrigate top Keep water in root zone Apply 1-2 of water or capacity No Irrigations, Rainfed only 30% Irrigate top Keep water in root zone Apply 1-2 of water or capacity Irrigate at 30% PET 60% Irrigate top Keep water in root zone Apply 1-2 of water or capacity Irrigate at 60% PET

12 QUESTIONS SO FAR?

13 UNDERSTANDING THE RELATIONSHIP BETWEEN YIELD POTENTIAL AND WATER

14 AVERAGE YIELDS PER IRRIGATION REGIMEN AGRI-SEARCH DATA YEAR SITE # VAR. POUNDS LINT PER ACRE RF 30% 60% 90% 2012 OLT EDM EDM AVG

15 PET / FALLOW SCENARIOS 200 Gallon Per Minute Pivot 65 Ac 55 Ac 9 Ac 111 Ac 60% PET Fallow 30% PET Fallow

GROSS $ PER ACRE @ (0.65/lb) PET/FALLOW SCENARIOS $44,337.80 $64,447.

16 GROSS $ PER (0.65/lb) PET/FALLOW SCENARIOS $44, $64, $46, $ $64, % PET FALLOW 30% PET FALLOW

17 60% PET - RAINFED AND 30% PET - RAINFED SCENARIOS 65 Ac 55 Ac 9 Ac 111 Ac 60% PET Rainfed 30% PET Rainfed

18 GROSS $/ACRE - 60% PET - RAINFED AND 30% PET - RAINFED (0.65/lb) $70, $68, $24, $46, $3, $64, % PET RAINFED 30% PET RAINFED

19 GROSS $/ACRE - 60% PET - RAINFED $70, SCENARIO $24, $46, % PET RAINFED

20 GROSS $/ACRE - 60% PET - RAINFED BUMPED UP ONE IRRIGATION REGIMEN $70, $90, $24, $46, $37, $52, % PET RAINFED 90% PET 30% PET

21 GROSS $/ACRE - 30% PET- RAINFED $68, SCENARIO $3, $64, % PET RAINFED

22 30% PET- RAINFED BUMPED UP ONE IRRIGATION REGIMEN $68, $3, $98, $5, $64, $93, % PET RAINFED 60% PET 30% PET

23 GROSS VALUES PER 120 ACRES $100,000 $90,000 $80,000 $70,000 $60,000 $50,000 $40,000 $30,000 $20,000 $10,000 $0 60%- FAL 30%- FAL 60%- RF 30% - RF 90% - 30% 60% - 30%

24 Production Costs Per Acre $120 Plowing Fertilizer Seed Irrigation Chemicals Har/Gin $100 $80 $60 $40 $20 $0 60% PET 30% PET Rainfed

25 Production Costs, Gross Value, and Potential Profit By Irrigation Regimen (Per Acre) $900 $800 $700 $600 $500 $400 $300 $200 $100 $0 Pro Cost Gross $ Profit/Ac 60% PET 30% PET Rainfed

26 $100,000 $90,000 $80,000 $70,000 $60,000 $50,000 $40,000 $30,000 $20,000 $10,000 $0 $ / 120 Ac Var Cost Profit

27 HOW MUCH WATER DOES IT TAKE TO JUMP UP ONE PET REGIMEN? % PET 2012 IRR.* 2013 IRR.* 2014 IRR.* AVG. RAINFED % PET % PET % PET RAIN *POST FLOWER RAIN AND IRRIGATION

28 WHAT IS THE PROBABILITY OF ACHIEVING YIELD GOALS? (21 YEARS) % 10 48% 5 24% 1% 0 < 2.1" 2.1" + 5.2" + 8.3" +

29 THE END

30 GROWER PERSPECTIVE 2017 SPLIT PIVOT IRRIGATION STRATEGIES IN COTTON PRODUCTION Layton Schur

31 2017 CLEMENTS WEST LOCKNEY, TX 30% - Rainfed 80 Ac 40 Ac 30% PET Rainfed

32 CLEMENTS WEST WATER MANAGEMENT GROWTH STAGE 30% PET RAINFED RAINFALL Pre-plant Pre Flower Post Flower

33 2017 CLEMENTS LOCKNEY, TX PRODUCTION COSTS/ACRE INPUT RAINFED 30% PET FERTILIZER $27.75 $27.75 SEED $61.36 $88.63 PLOWING $37.00 $37.00 CHEMICALS $ $ IRRIGATION $11.25 $71.25 HARVEST $37.80 $99.60 GINNING $9.58 $24.90 TOTAL $ $473.86

34 Yield Clements Farm 1400 Lbs. Lint/Ac % PET Rainfed 30% PET Rainfed

35 Profit and Loss Profile Clements Farm $55,000 $50,000 $45,000 $40,000 $35,000 $30,000 $25,000 $20,000 $15,000 $10,000 $5,000 $0 -$5,000 Gross $ Cost Profit 30% PET RAINFED WHOLE PIVOT

36 WHY WAS THE RAINFED PORTION OF THE PIVOT NOT PROFITABLE?

37 TAKE AWAY MESSAGES The TAWC website was very important to know how much water should be applied and when. Always use the most productive ground for allocation of water. Less inputs can be used in the rainfed portion of the pivot as compared to the 30 or 60% PET portions.

38 THANK YOU FOR YOUR ATTENTION!

2011 Beltwide Cotton Conferences, Atlanta, Georgia, January 4-7, 2011

2011 Beltwide Cotton Conferences, Atlanta, Georgia, January 4-7, 2011 373 EVALUATION OF SUBSURFACE DRIP IRRIGATION STRATEGIES FOR THE OPTIMAL USE OF GROUND WATER FOR COTTON PRODUCTION IN THE TEXAS SOUTH-PLAINS Tyler Cowie Jeff Johnson Texas Tech University & Texas AgriLife