Irrigation

Planning calculators for irrigation — estimates from industry-style inputs.

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Calculate emitter count, system flow rate, zone sizing, and daily run time for drip irrigation systems.

Calculate precipitation rate, head count, zone sizing, and run times for sprinkler irrigation systems.

Calculate center pivot coverage area, application depth, GPM/acre, and peak demand capacity.

Calculate required pump horsepower from total dynamic head and flow rate using Hazen-Williams friction loss.

Calculate acre-feet allocation, required diversion rate, and duty of water for irrigation water rights.

Calculate growth-stage Kc values and crop ET using FAO-56 methodology for irrigation scheduling.

Calculate sensor placement depths, irrigation trigger points, and scheduling intervals from soil water-holding capacity.

Calculate fertilizer injection rates, stock solution concentration, and nutrient ppm for fertigation systems.

Calculate application efficiency, distribution uniformity, scheduling coefficient, and water loss analysis.

Calculate seasonal irrigation water needs using Blaney-Criddle evapotranspiration, crop coefficients, and rainfall data.