Soil Moisture Lab

Soil Moisture Lab - Adam Pescatore Brae 236 Soil/Plant...

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Adam Pescatore Brae 236 10/31/2011 Soil/Plant Water Determination Lab In this lab the moisture content of a field was calculated using a few different methods. Helpful tools such as a plant bomb and the “Feel and Appearance” method along with a demonstration of these tools helped with the acquisition of moisture content. The soil looked at in the lab was a clay/clay loam type soil. The particles in these soils have a larger surface area which allows them to hold more water at field capacity. The first part of the lab used the “Feel and Appearance” method to estimate soil moisture at two different parts of the field, each at a depth of 36 inches. There is a standardized chart for this method where descriptions of the soil are laid out in an easy to read fashion. Darker and wetter slick soils will have a smaller SMD (soil moisture depletion) where the drier and crumblier soils have a larger SMD. The SMD is given in inches per foot. This value was obtained for every six inches of depth. The total SMD values for each part of the field were 1.1 inches (from the wet location) and 2 inches (from the dry location-*value given in class*). Soil Moisture depletion, or soil moisture deficit, is the
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This note was uploaded on 11/14/2011 for the course BRAE 236 taught by Professor Styles during the Fall '08 term at Cal Poly.

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Soil Moisture Lab - Adam Pescatore Brae 236 Soil/Plant...

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