1/6/2003 low volume irrigation and crop management technologies value of sdi combined with cmt...
TRANSCRIPT
1/6/2003
Low Volume Irrigation and Crop Management Technologies
Value of SDI Combined with CMT
National Sales Meeting June 13-17, 2005
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Identify Issue/NeedRelate Product or Feature that Solves IssueCommunicate Gains in productivity, performance or economicsConvert Benefits into gain or pain eliminatedTranslate into economic terms
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Economic Squeeze
Low Commodity Prices Increasing Input Costs
Jim Phene -- Netafim USAJim Phene -- Netafim USA
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Identify Issue/NeedRelate Product or Feature that Solves IssueCommunicate Gains in productivity, performance or economicsConvert Benefits into gain or pain eliminatedTranslate into economic terms
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Dr. Claude J Phene--Retired USDA-ARS Copyright 2005--used by permission
04/19/23
Identify Issue/NeedRelate Product or Feature that Solves IssueCommunicate Gains in productivity, performance or economicsConvert Benefits into gain or pain eliminatedTranslate into economic terms
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Discovery of High Frequency &Fertigation Effects
Average Yield @ 29 Tons 1st Year: 40% less water &
“N” Injected-- 48 Tons 2nd Year: 40% less water &
“N & P” Injected-- 75 Tons 3rd Year: “N-P-K” Injected--
110Tons
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Mike Bartolo--CSU ExtensionEqual Yields of 1500 Bags
Furrow requiring @6.9 ac-ft
Drip requiring @13 ac-in
@ Over 5 acre foot difference...
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What Makes Drip Work? Low volume water application
Frequent irrigation: every day or several times a day
Application of nutrients through system
Wet only soil about roots
Low operating pressure: 7-15 psi
Highest efficiency & uniformity possible
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Water Use Efficiency
Evapotranspiration
or
ET
E
T
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Water Use Efficiency
Best Described as
Unit of Production/Unit of Water
E
TTypically see 30 to 50%
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Improved Yield, Quality & EarlinessOptimal balance of water, air and nutrients enhances top growth over root growth
Plant doesn’t wilt so more sugars for growth
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The Benefits of Drip- Fertility
P,KP,K
NONO33NONO33
PP
KK PP
Less NO3 loss due to deep percolation
Nutrients in solution &readily taken up by roots
Meet crop nutrient demands
NONO33
NONO33
NONO33
NONO33NONO33
NONO33
NONO33
PP KKKK
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Typical Irrigation Methodology
“TOO DRY”
“TOO WET”
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High Frequency Irrigation Theory
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Typical Fertility Methodology
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High Frequency Fertigation Theory
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High Frequency Fertigation Method
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The Benefits of Drip: Fertigation
Majority of InputsInjected
NONO33 NONO33
PP PP
KK KK
pHpH pHpH
CHEMIGATION
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+No evaporative losses+More Flexibility+Less Labor+NPK in root zone
SDI on FarmAdvantages
+Dry Soil Surface+Mitigates Weeds+Controlled Root Zone+Less Compaction+Permanent
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Lower Salt AccumulationsNo evaporative lossesMore FlexibilityMitigates Surface RunoffMitigates Deep Percolation
SDIMacroAdvantages
Dry Soil SurfaceDecreases HerbicidesDecreases ErosionHighest EfficiencyPermanent Solution
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Identify Issue/NeedRelate Product or Feature that Solves IssueCommunicate Gains in productivity, performance or economicsConvert Benefits into gain or pain eliminatedTranslate into economic terms
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1/6/2003
Crop Management Technologies
Creating Value or Why do our Customers Need It?
National Sales Meeting June 13-17, 2005
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Continuous Measurement
12”
36”
Shallow sensor = when to start
Deep sensor = how long
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Used by permission--Dr. Claude Phene Copyright 2005
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Available Volumetric
Water Content
100%
Available Water - What does it mean?Total Volumetric
Water Content
100%
50%
50%
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Used by permission--Dr. Claude Phene Copyright 2005
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Used by permission--Dr. Claude Phene Copyright 2005
Volumetric vs. Matric Potential
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Used by permission--Dr. Claude Phene Copyright 2005
How We Use GP Sensor
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Tools to Help with Scheduling
Soil’s Description Program to provide guidelines for AWC Consider effects of Matric Potential Consider effects of Osmotic Potential Leaching Fractions
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SPAW
Soil - Plant - Atmosphere - WaterField & Pond Hydrology
SPAW is a daily hydrologic budget model for agricultural fields and ponds (wetlands, lagoons, ponds and reservoirs). Included are irrigation scheduling and soil nitrogen. Data input and results are graphical screens.
Developed By:Dr. Keith E. SaxtonUSDA - Agricultural Research Servicein cooperation withDepartment of Biological Systems EngineeringWashington State UniversityPullman, WA 99164-6120Voice: (509) 332-7277FAX: (509) 332-7277Email: [email protected]: http://www.bsyse.wsu.edu/saxton
Register and Download SPAW
Revised: Mar 3, 2005
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http://hydrolab.arsusda.gov/SPAW/Index.htm
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Soil Water Characteristic Estimates by Texture and Organic Matter for Hydrologic Solutions". By Dr. Keith Saxton Email: [email protected]
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Start-up of Automation (Shafter)
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High Frequency Irrigation (Shafter)
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Frequency of Irrigation (Shafter)
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Frequency of Irrigation (Daily)
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IrriWiseTM Weather Station
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High Frequency Fertigation Method
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Management by Exception
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Netafim assembled a professional team with the aim of creating a
reliable modular and open control platform
These products are the beginning of a new concept in which
automation products function as a decision support tool
Introduction
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Summary NMC-64:User friendly controller consisting of: Large graphic display Flexible hardware structure Suitable for Irrigation and climate application
NMC-15: Advanced, simple irrigation controller. Suitable for small to mid-range applications
NetaJet dosing units: Ensures outstanding accuracy,
homogeneous solution and simplicity
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Identify Issue/NeedRelate Product or Feature that Solves IssueCommunicate Gains in productivity, performance or economicsConvert Benefits into gain or pain eliminatedTranslate into economic terms
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04/19/23
Economic Squeeze
Low Commodity Prices Increasing Input Costs
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Economic Analysis
Spreadsheet from Kansas State University
Spreadsheet Showing Updated Inputs
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This template determines the economics of converting existing furrow-irrigated fields tocenter pivot sprinkler irrigation (CP) or subsurface drip irrigation (SDI) for corn production.
Field description and irrigation system estimatesVersion 2, modified by F.R. Lamm, 4-9-02
Total Suggested CP Suggested SDI Suggested
Field area, acres 160 160 125 125 155 155
Non-cropped field area (roads and access areas), acres 5 5
Cropped dryland area, acres (= Field area - Non-cropped field area - Irrigated area) 30 0Irrigation system investment cost, total $ $58,000.00 $45,114 $155,000.00 $122,016
Irrigation system investment cost, $/irrigated acre $464.00 $1,000.00Irrigation system life, years 25 25 25 15
Interest rate for system investment, % 8% 8%
Annual insurance rate, % of total system cost 0.25% 0.25% 0.25% 0.25%
Production cost estimates CP Suggested SDI Suggested
Total variable costs, $/acre (See CF Tab for details on suggested values) $342.91 $342.91 $318.19 $318.19
Additional SDI variable costs (+) or savings (-), $/acre Additional Costs $0.00 $0.00
Yield and revenue stream estimates CP Suggested SDI Suggested
Corn grain yield, bushels/acre Suggested 200 200 250 200
Corn selling price, $/bushel $2.50 $2.28
Net return to cropped dryland area of field ($/acre) $32.50 $32.50
Advantage* of CP over SDI, $/total field each year -$18,941.80 Negative value means SDI has positive advantage
$/acres each year -$118.39 * Advantage in Net returns to land and management
You may examine sensitivity to Main worksheet (tab) assumptions on three of the tabs listed below.
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