Appendix C - Enable On-Farm Worksheet.xlsx

Instructions

● Have a change in irrigation application system. (i.e. flood to sprinkler)

● Provide sufficient pressure and appropriate velocity where topography enables it to allow for the future installations of high efficiency on-farm improvements (i.e. sprinkler systems).

● Where working pressure generated by the pipeline is insufficient booster pumps may be added. Capital costs for pumps and electrical connections would be part of the Reclamation funded project and must be displayed as project costs in Appendix E of the Project Application.

https://www.nrcs.usda.gov/wps/portal/nrcs/detail/national/programs/financial/eqip/?cid=stelprdb1044009 Salinity Definitions https://www.nrcs.usda.gov/wps/portal/nrcs/detail/national/programs/financial/eqip/?cid=stelprdb1044009 https://www.nrcs.usda.gov/wps/portal/nrcs/detail/national/programs/financial/eqip/?cid=stelprdb1044009 Appendix E -- Estimate of Enabled On-farm Acreage Page 2/2

Name of Canal/Lateral/Ditch: ____________________________

TOTAL ACRES CLAIMED 0

Symbol Approx application efficiency

Description

UF 32%

Unimproved flood - earthen ditches, dirt or sod turnouts, poor or no field corrugations, undulating topography, uneven irrigation flows, poor water control. Field has obvious high and low areas, wet and dry areas, uneven greenness/growth and high run-off.

IFPC 37%

Improved flood, poor condition - earthen ditches to flexible temporary plastic pipe, no or poorly maintained corrugations, significant cross slopes and undulating topography.

Majority of the field appears to have even growth, few obviously wet or dry areas, high run-off.

IFPlus 45%

Partially improved flood, wo IFM - earthen ditch to siphon tube, marginal field corrugations, cross slopes and irrigation slopes are variable, some water control.

Operator has developed techniques to somewhat evenly irrigate most of the field and significantly reduce run-off.

OIFM 45%

Old improved flood - Improved flood systems w/ IWM beyond their practice life of 15 years. It is assumed that application efficiency has declined by 10% from new condition.

IFM 55%

Improved flood system with IWM being practiced - pipeline to gated pipe, concrete ditch w/ports or siphon tubes, etc., with IWM practice being applied per acceptable standard.

OPM 55%

Old periodic move, Wheel line, side roll, big gun, pod, hand line, etc., beyond its practice life of 15 years. It is assumed that application efficiency has declined by 10% from new condition.

PM 65%

Periodic Move - Siderolll sprinklers, hand line, pod, or solid set sprinklers and IWM being applied.

OCM 65%

Old continuous move, Center pivot, lateral move, spooled move big gun, etc., beyond its specified practice life of 15 years. It is assumed that application efficiency has declined by 10% from new condition.

CM 75% Continous move, Center pivot, lateral move, spooled move big gun, etc. with IWM.

High Tech 85% High Tech – 85% - Micro Spray, Drip, Center pivot with high efficiency and lowered nozzles (MESA, LEPA, etc.), with IWM being applied.

All of the values used in this spreadsheet represent broad-scale averages, as opposed to individual field level evaluations. The application efficiencies used represent averages, not the potential peak efficiency set out in the NRCS Engineering Handbook and are generalized to the salinity program.

Not all states will use all of the symbols in this list. These are a combination of definitions previously used in different states.

Irrigation efficiency is directly related to the uniformity of water application, control, and run-off. If the field appears to have even color throughout, on the latest NAIP, it is probably at 35% or better efficiency.

Irrigation Practice Definitions For calculating cost/ton for salinity ranking

Definitions image1.emf