Nut Orchard Water Requirement Calculator – Optimal Irrigation for Almonds, Walnuts, Pistachios & More

Nut Orchard Water Requirement Tool

Calculate the water needs for your nut orchard based on crop type, growth stage, and environmental factors. Get precise daily and weekly irrigation estimates to optimize water use.

Orchard Information

Nut Crop Type

Growth Stage

Orchard Size (acres)

Tree Density (trees/acre)

Soil Type

Irrigation System

Reference ET (inches/day)

Recent Rainfall (inches)

Water Requirements Analysis

Crop Specific Needs

Crop Coefficient (Kc)

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This factor represents your crop’s water use relative to reference ET, varying by crop and growth stage.

Daily Crop Water Need (ETc)

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The estimated water needed by your plants per day in inches (Evapotranspiration of the Crop).

Weekly Crop Water Need (ETc Total)

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Total water required by your crop over seven days, in inches.

Orchard Totals & Adjustments

Adjusted Weekly Need (after rainfall)

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This accounts for any recent rainfall reducing your irrigation needs. If rainfall covers the need, this will be zero.

Total Orchard Weekly Need (Net)

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The total volume of water your entire orchard needs this week, expressed in acre-feet. This is the net amount after accounting for rainfall.

Irrigation Application

Irrigation System Efficiency

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How effectively your irrigation system delivers water to the plants (e.g., drip is highly efficient, flood less so).

Actual Water to Apply (Gross)

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The gross amount of water you need to apply to compensate for system losses and fully meet the orchard’s weekly demand.

Estimated Irrigation Duration

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An estimate of how long your irrigation system needs to run this week to apply the ‘Actual Water to Apply’. (Assumes a typical application rate of 0.05 acre-ft/hour/acre for calculation purposes. *Consider entering your specific system’s flow rate for a precise value.*)

Orchard Information

Water Requirements Analysis

Crop Specific Needs

Orchard Totals & Adjustments

Irrigation Application

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