|
Corn Measurements
|
|
Grower Return
|
Units
|
$/acre
|
|
Formula
|
(Weighted price per bushel x yield) - (yield x
(handling + hauling + trucking)) -(storage x 0.02) - (yield
x (grain moisture-15.5) x drying).
|
|
Determination
|
Handling cost = $0.02 per bushel
Hauling cost = $0.04 per bushel
Trucking cost = $0.11 $ per bushel (100 miles)
On-farm drying cost = $0.02 per point per bushel
Storage = (yield*0.25 *4) + (yield*0.25*8); On-farm
$0.02/bu. 30days
Weighted Price per
Bushel = $1.86 per bushel = (50% December Average Cash
price) + (25% March CBOT Futures price) + (25% July CBOT
Futures price).
December Average Cash price derived from Wisconsin Ag
Statistics; CBOT Futures prices derived from closing price
on first business day in December.
|
|
Grain Yield
|
Units
|
Bu/acre
|
|
Formula
|
(43560/(plot width * plot length in feet)) * weight of
sample in lbs.* ((100-sample moisture)/(100-15.5{moisture
standard}))/56 lb/bu
|
|
Moisture
|
Units
|
%
|
|
Determination
|
GRAIN: determined by
Harvest Master unit on combine or wet weight method and
adjusted to standard corn moisture 15.5%
WHOLE PLANT: moisture of subsample of chopped whole plant
moisture of subsample of chopped stover (whole plant less
ears)
|
|
Test Weight
|
Units
|
lbs/bushel
|
|
Determination
|
weight of known volume converted to lbs/bushel
|
|
Plant Height
|
Units
|
inches or centimeters
|
|
Determination
|
plant height from soil surface to top leaf (flag) canopy.
|
|
Observations
|
average of several plants in each plot
|
|
Ear Height
|
Units
|
inches
|
|
Determination
|
height from soil surface to base of ear
|
|
Observations
|
average of several plants in each plot
|
|
Broken Stalks
|
Units
|
%
|
|
Determination
|
at harvest
|
|
Observations
|
number of stalks broken below the ear + number of plants
lodged at >45% from the whole plot (22' x 2 rows)
|
|
Formula
|
(broken stalks + lodged plants)/total stalks x 100%
|
|
Kernel Weight
|
Units
|
mg/seed
|
|
Determination
|
weight of 100 seeds converted to mg/seed
|
|
Plant Density
|
Units
|
plants per acre
|
|
Determination
|
Early = plants at v3-v5 stage
Late = just prior to harvest
|
|
Observations
|
plants counts on whole plot (22' x 2 rows)
|
|
Ear Density
|
Units
|
Ears per acre
|
|
Determination
|
Just prior to harvest
|
|
Observations taken
|
Ear counts are taken from whole plot (22' x 2 rows)
|
|
Leaf Development
|
Units
|
none
|
|
Determination
|
count of leaf number
|
|
Observations
|
LEAF COLLARS: total number of visible leaf collars
HAIL ADJUSTERS: total number of drooping leaves
TOTAL: total number of leaves visible
|
|
Starch (Grain)
|
Units
|
%
|
|
Determination
|
Near Infra-Red
Transmittance Spectroscopy using a global calibration
equation from Foss
|
|
Observations
|
Plot subsample
|
|
Protein (Grain)
|
Units
|
%
|
|
Determination
|
Near Infra-Red
Transmittance Spectroscopy using a global calibration
equation from Foss
|
|
Observations
|
Plot subsample
|
|
Oil (Grain)
|
Units
|
%
|
|
Determination
|
Near Infra-Red
Transmittance Spectroscopy using a global calibration
equation from Foss
|
|
Observations
|
Plot subsample
|
|
Ethanol (Grain)
|
Units
|
%
|
|
Determination
|
Near Infra-Red
Transmittance Spectroscopy using a global calibration
equation from Pioneer
|
|
Observations
|
Plot subsample
|
|
Diseases ratings
|
Units
|
Rating score = 1-9
1,2,3= Worst; 4,5,6= Mid; 7,8,9= Best
|
|
Determination
|
Based on amount of
disease on plant part of interest
|
|
Observations
|
Plot measured in the
field
|
|
Forage Yield
(Whole Plant)
|
Units
|
Tons of dry mater per
acre
|
|
Formula
|
weight of sample in
lbs.* (43560/(2000*plot width * plot length in feet)).*
((100-sample moisture)/100)
|
|
Kernel Milk
|
Units
|
%
|
|
Determination
|
percent milk remaining in kernel at harvest
|
|
Observations
|
visual average of three ears from a non-harvest row
|
|
Kernel Milk Rating (KMR)
|
Formula
|
% Kernel Milk x 5
|
|
Scale
|
0-5
|
|
Stover Moisture Rating (SMR)
|
Formula
|
% Greenness x
Leaf Rating (Leaf Rating scale 1-5, Based on % of upright
leaves)
|
|
Scale
|
0-5
|
|
Visual Moisture Rating (VMR)
|
Formula
|
KMR + SMR
|
|
Scale
|
0-10
|
|
Crude Protein (CP)
|
Units
|
%
|
|
Determination
|
wet lab or NIRS procedure on plot sub sample
|
|
Neutral Detergent Fiber
|
Units
|
%
|
|
Determination
|
wet lab or NIRS procedure on plot sub sample
|
|
Neutral Detergent Fiber Digestibility
|
Units
|
%
|
|
Determination
|
wet lab or NIRS procedure on plot sub sample
|
|
Acid Detergent Fiber
|
Units
|
%
|
|
Determination
|
wet lab or NIRS procedure on plot sub sample
|
|
In Vitro Digestibility
|
Units
|
%
|
|
Determination
|
In vitro wet lab or NIRS procedure on plot sub sample
|
|
Starch content
|
Units
|
%
|
|
Determination
|
wet lab or NIRS on
plot sub sample
|
|
Kernel Rot
|
Units
|
none
|
|
Determination
|
visual average of 5 plants at V2-V4
|
|
Scale
|
1=deterioration
2=no deterioration
|
|
Emergence
|
Units
|
%
|
|
Formula
|
Early stand / late stand count x 100%
|
|
Residue cover
|
Units
|
%
|
|
Determination
|
Point transects
centered on row.
|
|
% Survival
|
Units
|
%
|
|
Formula
|
Early stand / late stand count x 100%
|
|
Root Rating
|
Determination
|
The ISU 0 to 3
node-injury root rating scale was used. A rating of
0.50 or below is considered acceptable economic root
protection.
|
|
Scale
|
0-3
|
|
Soybean Measurements
|
|
Grower Return
|
Units
|
$/acre
|
|
Formula
|
(Weighted price per bushel x yield) - (yield
x (handling + hauling + trucking)) -(storage x 0.02).
|
|
Determination
|
Handling cost = $0.02 per bushel
Hauling cost = $0.04 per bushel
Trucking cost = $0.11 $ per bushel (100 miles)
Storage = (yield*0.25*4)+ (yield*0.25*8); On-farm $0.02/bu.
30days.
Weighted Price per Bushel = $5.54 per bushel = (50%
December Average Cash price) + (25% March CBOT Futures
price) + (25% July CBOT Futures price).
December Average Cash price derived from Wisconsin Ag
Statistics; CBOT Futures prices derived from closing price
on first business day in December.
|
|
Grain Yield
|
Units
|
Bu/acre
|
|
Formula
|
(43560/(plot width * plot length in feet)) * weight of
sample in lbs.* ((100-sample moisture)/(100-13{moisture
standard}))/60 lb/bu
|
|
Grain Moisture
|
Units
|
%
|
|
Determination
|
determined by detector on combine 13% is standard soybean
moisture
|
|
Plant Height
|
Units
|
inches
|
|
Determination
|
plant height from soil surface to tip of main stem
|
|
Observations
|
average of several plants in each plot
|
|
Plant Lodging
|
Units
|
none
|
|
Determination
|
based on average erectness of main stem of plant
|
|
Observations
|
whole plot is assessed
|
|
Scale
|
1=ALL PLANTS ERECT
2=SLIGHT LODGING
3=PLANTS LODGED AT 45 DEGREE ANGLE
4=PLANTS LODGED AT 60-80 DEGREE ANGLE
|
|
Seed Weight
|
Units
|
seeds/lb
|
|
Determination
|
weight of 300 seeds converted to seeds/lb
|
|
Plant Density
|
Units
|
plants per acre
|
|
Determination
|
early = plants at V3
to V5 stage
late = just prior to harvest
|
|
Observations
|
plants counts are taken from 5 linear feet of plot X the
harvested area
|
|
% Survival
|
Units
|
%
|
|
Formula
|
Early stand / late stand count x 100%
|
|
Wheat Measurements
|
|
Grower Return
|
Units
|
$/acre
|
|
Formula
|
(Weighted price per bushel x yield) - (yield x (handling
+ hauling + trucking)) -(storage x 0.02).
|
|
Determination
|
Handling cost = $0.02 per bushel
Hauling cost = $0.04 per bushel
Trucking cost = $0.11 $ per bushel (100 miles)
Storage = (yield*0.25*4)+ (yield*0.25*8); On-farm $0.02/bu.
30days.
Weighted Price per Bushel = $3.07 per bushel = (50%
December Average Cash price) + (25% March CBOT Futures
price) + (25% July CBOT Futures price).
December Average Cash price derived from Wisconsin Ag
Statistics; CBOT Futures prices derived from closing price
on first business day in December.
|
|
Grain Yield
|
Units
|
Bu/acre
|
|
Formula
|
(43560/(plot width * plot length in feet)) * weight of
sample in lbs.* ((100-sample moisture)/(100-13.5{moisture
standard}))/60 lb/bu
|
|
Grain Moisture
|
Units
|
%
|
|
Determination
|
|
