Agricultural Science, Crop & Precision Farming Hub
Solvers for center-pivot irrigation, NPK fertilizer blending, grain bin storage volume, cattle feed conversion, seed population planting rates, and soil CEC.
Crop Yield Estimator (Corn, Soybeans & Wheat Bushels Per Acre)
Calculate pre-harvest corn grain yield in bushels per acre using ear count, kernel rows, kernels per row, and kernel test weight factors.
N-P-K Fertilizer Application & Nutrient Blending Rate (lbs/acre)
Calculate commercial fertilizer application rates in lbs/acre for Nitrogen (N), Phosphate (P₂O₅), and Potash (K₂O) from soil test recommendations.
Cattle Stocking Rate & Animal Unit Months (AUM) Grazing Capacity
Calculate pasture grazing capacity in Animal Unit Months (AUM), allowable forage intake, and stocking rate for cow-calf pairs and stockers.
Grain Silo & Cylindrical Grain Bin Bushel Capacity Calculator
Calculate struck and peaked grain volume in bushels for round corrugated steel grain bins, accounting for grain compaction and test weight pack factors.
Center Pivot Irrigation Flow Rate & Water Application Depth Calculator
Calculate system pumping capacity in GPM, hours per revolution, and water application depth (inches) for 1/4-mile (125-acre) center pivot irrigation.
Timber Board Foot Volume Estimator (Doyle, Scribner & International 1/4)
Calculate sawtimber board foot volume (BF) in standing trees and harvested logs using the Doyle, Scribner Decimal C, and International 1/4-Inch log rules.
Round Hay Bale Weight & Winter Livestock Forage Requirement
Calculate estimated round bale weight from diameter and core density, winter hay inventory requirements, and feeding waste losses.
Seed Planting Population & Row Spacing Seed Count Per Acre
Calculate seeds per foot of row, seed bag requirements, and planter spacing settings for corn, soybeans, and cotton across standard row widths.
Livestock Feed Conversion Ratio (FCR) & Cost of Gain Calculator
Calculate feed conversion efficiency (lbs feed per lb live weight gain), feed cost per hundredweight of gain, and margin over feed cost.
Agricultural Soil Lime Requirement & CCE Neutralization Calculator
Calculate tons of agricultural limestone needed per acre to raise acid soil pH based on Sikora / Woodruff buffer pH and Calcium Carbonate Equivalent (CCE).
Herbicide / Pesticide Tank Mix Spray Dilution Rate Calculator
Calculate pesticide chemical ounces to add per tank, carrier spray volume in Gallons Per Acre (GPA), and sprayer speed calibration.
Dairy Cow Fat-Corrected Milk (4% FCM) & Energy-Corrected Milk (ECM)
Calculate Fat-Corrected Milk (4% FCM) and Energy-Corrected Milk (ECM) from bulk tank milk weight, butterfat percentage, and true protein test.
Combine Harvester Field Grain Loss & Bushel Dockage Rate Calculator
Calculate field harvesting grain loss in bushels per acre and lost dollar revenue from kernel counts behind combine header and rotor/shoe separator.
Agricultural Subsurface Drainage Tile Spacing & Sizing Calculator
Calculate subsurface corrugated HDPE drainage tile lateral spacing in feet, drainage coefficient, and pipe diameter using Hooghoudt's equation.
Greenhouse Daily Light Integral (DLI) & Supplemental LED PPFD Calculator
Calculate Daily Light Integral (DLI in mol/m²/day), supplemental LED photosynthetic photon flux density (PPFD in μmol/m²/s), and photoperiod hours.
Swine Nursery Feed Intake & Average Daily Gain (ADG) Calculator
Calculate Average Daily Gain (ADG), days to market weight (280 lbs), and total feed consumed for commercial swine grow-finish operations.
Poultry Broiler Flock European Production Efficiency Factor (EPEF) Calculator
Calculate EPEF (European Production Efficiency Factor / EPI) index from liveability, market body weight, flock age, and feed conversion ratio (FCR).
Silage Bunker Trench Dry Matter Density & Packing Loss Calculator
Calculate packing tractor weight requirements, dry matter packing density (lbs DM/cu ft), and fermentation spoilage loss in bunker and drive-over silage piles.
Livestock Manure N-P-K Nutrient Fertilizer Value Credit Per Ton
Calculate commercial N-P-K fertilizer dollar replacement value per ton or 1,000 gallons for dairy, beef, swine, and poultry broiler litter manure.
Farm Tractor Diesel Fuel Consumption Per Acre (PTO Horsepower) Calculator
Calculate hourly and per-acre diesel fuel consumption for tractors based on Nebraska Tractor Test Laboratory PTO horsepower benchmarks.
Pasture Weed Eradication Herbicide Rate & Boom Sprayer Calibration
Calculate nozzle flow rate (GPM), sprayer speed, and herbicide coverage per acre for pasture thistle, briar, and invasive weed management.
Beehive Honey Harvest Yield & Fall Sugar Syrup Feeding Calculator
Calculate harvestable honey surplus per hive (leaving 60 lbs for winter), 2:1 fall sugar syrup feeding requirements, and apiary economics.
Aquaponics Fish-to-Plant Biomass Ratio & Biofilter Media Sizing
Calculate daily fish feed rate, nitrogen biofilter surface area, and hydroponic plant bed grow area (UVI Rakocy aquaponics model).
Vineyard Grape Yield to Finished Wine Gallons & Bottles Calculator
Calculate harvest grape tonnage per acre, raw must press juice gallons, and finished 750ml bottles of wine produced per ton of grapes.
Farmland Cash Rent Equivalent vs Crop Share Lease Calculator
Compare fixed cash rent per acre versus 50/50 and 60/40 crop-share lease economics, factoring commodity price volatility and input cost sharing.