agronomy training november 9, 2005 @wsu ryan maiden, ag tech rep
TRANSCRIPT
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Agronomy TrainingAgronomy TrainingNovember 9, 2005November 9, 2005
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WSUWSU
Ryan Maiden, Ag Tech RepRyan Maiden, Ag Tech Rep
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EC Maps, what do they mean?EC Maps, what do they mean?
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Veris Direct Soil ContactVeris Direct Soil Contact
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The amount of clay in the soil plays a huge role in water and nutrient holding capacity. The cation-exchange capacity (CEC) of the soil is based largely on the clay content. If you can map this accurately, you have a good start on defining the differences in productive potential in the field.
Why is soil texture important?Why is soil texture important?
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Improved soil sampling: “Directed Improved soil sampling: “Directed grids”grids”
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Conventional grids
Directed grid sampling
Brian E.
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Improved soil sampling: Improved soil sampling: “Management Zones”“Management Zones”
Sampling density and lab analysis costs can be reduced by dividing a field into management zones, based on soil EC and soil texture variability. In this example of zones, the number of samples was reduced by 50% versus 2.5 acre grids.
Zone 1
Zone 2
Zone 3
Zone 4
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Finish!
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Questions ?Questions ?