Clemson University · CU-CAT

Practical tools for real farm decisions

Find mobile-friendly agricultural calculators and decision tools for irrigation, fertility, livestock, peanuts, machinery, and more.

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19 tools; sorted by recommended order

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Horticulture +1New

Drip Fumigation Calculator

Estimate treated area, fumigant required, and injection run time for an inline drip fumigation application.

Agronomic Crops +2Legacy site

Drip Fertigation Calculator

Calculate daily and weekly fertilizer rates for drip fertigation.

Agronomic CropsLegacy site

EMC Calculator

Determine grain equilibrium moisture content from air conditions and view a local EMC forecast.

Agribusiness +3Legacy site

Clemson Fertilizer Blend Calculator

Evaluate fertilizer blends that meet NPK requirements cost-effectively.

Agronomic Crops +2Legacy site

Injection Pump Settings Calculator

Determine injection-pump settings for chemigation and fertigation applications.

Agronomic Crops +2Legacy site

Lime Rate Calculator

Calculate agricultural lime requirements from soil conditions and lime-source properties.

Agronomic Crops +2Legacy site

Liquid Fertilizer Solution Calculator

Calculate nutrient composition for liquid solutions made from soluble fertilizers.

Livestock and ForagesUpdated

Livestock Feed Ration Calculator

Analyze livestock feed rations, review nutrient composition, and prepare practical mix sheets.

Agribusiness +1Legacy site

Livestock Feed Ration Optimizer

Build livestock rations that match nutritional criteria while optimizing ingredient cost.

Agronomic Crops +2Legacy site

NPK Recommendations Calculator

Find Clemson nitrogen, phosphorus, and potassium recommendations by crop and soil fertility level.

Agronomic CropsLegacy site

Peanut Digger Conveyor Speed Calculator

Determine peanut-digger conveyor speed using a simple stopwatch measurement.

Agronomic CropsLegacy site

Peanut Field Drying Forecaster

Forecast peanut kernel moisture during windrow drying with local weather data.

Agribusiness +1Legacy site

Peanut Loan Rate Calculator

Estimate peanut loan rate, value, discounts, and premiums per ton and acre.

Agronomic CropsLegacy site

Peanut Yield Estimator

Estimate peanut yield from field observations collected within a sampling window.

Agronomic Crops +2Legacy site

Pivot Fertigation Calculator

Schedule fertilizer injection settings for center-pivot irrigation systems.

Agronomic Crops +2Legacy site

Reverse Lime Rate Calculator

Estimate the resulting soil pH from a lime rate and lime source.

Agronomic Crops +1Legacy site

Soil Acidification Calculator

Estimate amendment requirements for lowering soil pH.

Agronomic Crops +2Legacy site

Tractor Ballast Calculator

Estimate an appropriate tractor ballast configuration for field operation.

Agronomic Crops +2Legacy site

Watermark Soil Moisture Calculator

Support irrigation scheduling with Watermark 200SS soil-moisture sensor readings.