Category: Agronomy Calculator
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Harvest Index Calculator
Harvest Index Calculator Harvest Index (HI %)
Enter crop yield values
Formula:
Harvest Index
HI (%) = (Economic yield / Biological yield) × 100
Where:
Economic yield = Grain or usable yield
Biological yield = Total above-ground biomass -
Leaf Area Index Calculator
Leaf Area Index Calculator Leaf Area Index (LAI)
Enter leaf and ground area values
Formula:
Leaf Area Index
LAI = Leaf area / Ground area
Where:
Leaf area = Total leaf surface area
Ground area = Land area occupied by the plant/crop -
Relative Growth Rate Calculator
Relative Growth Rate Calculator Relative Growth Rate (RGR)
Enter dry weights and time intervals
Formula:
Relative Growth Rate
RGR = (ln W₂ − ln W₁) / (t₂ − t₁)
Where:
W₁ = Dry weight at time t₁
W₂ = Dry weight at time t₂
t₁, t₂ = Time (days) -
Biological Yield Calculator
Biological Yield Calculator Biological Yield
Enter grain and straw yield
Formula:
Biological Yield
Biological yield = Grain yield + Straw yield -
Fertilizer Use Efficiency Calculator
Fertilizer Use Efficiency Calculator Fertilizer Use Efficiency (FUE)
Enter fertilizer applied and yield increase
Formula:
Fertilizer Use Efficiency
FUE = Yield increase / Fertilizer applied
Where:
Yield increase = Yield with fertilizer − Yield without fertilizer
Fertilizer applied = Quantity of nutrient or fertilizer added -
Weed Index Calculator
Weed Index Calculator Weed Index (WI %)
Enter yield values
Formula:
Weed Index
WI (%) = [(Yweed-free − Ytreated) / Yweed-free] × 100 -
Moisture Content Calculator
Moisture Content Calculator Moisture Content (%)
Enter fresh and dry weights
Formula:
Moisture Content
Moisture (%) = (Fresh − Dry) / Fresh × 100
Where:
Fresh = Fresh sample weight
Dry = Oven-dry sample weight -
Moisture Content Calculator
Moisture Content Calculator Moisture Content (%)
Enter fresh and dry weights
Formula:
Moisture Content
Moisture (%) = (Fresh − Dry) / Fresh × 100
Where:
Fresh = Fresh sample weight
Dry = Oven-dry sample weight