The cost of water per acre is determined by the following formula:

(Annual Crop ET / Irrigation Application Uniformity decimal)

x

Water Cost per Acre Foot

This decimal is multiplied by the current
water cost to generate the drip water cost. It reflects the improvement
in application uniformity converting from gravity to drip (.67/.88 =
.761), from sprinkler to drip (.68/.88=.773) and from mechanized to drip
(.77/.88)=.875.

The cost per acre of fuel (gas, electric or diesel) to pump or transport water to the crop.

The multiplier coefficient is used to
determine the cost for energy per acre when converting to a drip-micro
system. The formula is as follows:

(current system x drip-micro %)

The cost per acre of buying and applying fertilizer.

The multiplier coefficient is used to
determine the cost for fertilizer per acre when converting to a
drip-micro system. The formula is as follows:

(current system x drip-micro %)

The cost per acre of buying and applying chemicals.

The multiplier coefficient is used to
determine the cost for chemicals per acre when converting to a
drip-micro system. The formula is as follows:

(current system x drip-micro %)

The cost per acre of labor directly involved in irrigation.

The multiplier coefficient is used to
determine the cost for irrigation labor per acre when converting to a
drip-micro system. The formula is as follows:

(current system x drip-micro %)

The cost per acre of parts, materials and labor to repair and maintain the irrigation system.

The multiplier coefficient is used to
determine the cost for maintenance per acre when converting to a
drip-micro system. The formula is as follows:

(current system x drip-micro %)

The cost per acre of tillage operations including cultivation, mowing, tilling and shaping.

The multiplier coefficient is used to
determine the cultural costs per acre when converting to a drip-micro
system. The formula is as follows:

(current system x drip-micro %)

The cost per acre of new software, technology, system upgrades, etc.

The multiplier coefficient is used to
determine the cost for equipment per acre when converting to a
drip-micro system. The formula is as follows:

(current system x drip-micro %)

The total annual cost of harvesting the crop per acre.

The multiplier coefficient is used to
determine the harvest cost per acre when converting to a drip-micro
system. The formula is as follows:

(current system x drip-micro %)