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Unformatted text preview: 11) Clay Loam soil has a AWHC = 1.75 in/ft, the effective plant root zone is 2 ft, and the MAD is 50 %. What is the SMD max (SMD prior to irrigation) in inches? 12) Given the following representative soil log for a field; The effective root zone of the crop is 40 in. and the MAD is 45 %. Calculate the soil thickness and Layer AWHC. What is the SMD prior to irrigation? Layer AWHC (inches) Soil Layer Soil Texture Depth (inches) Thickness (feet) AWHC (in/ft) 1 S Loam 0-18 1.3 2 F Sand 18-36 0.8 3 L Sand 36-42 1 4 Loam 42-48 1.6...
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- Fall '09