Abstract: A sample unloading system comprising: a sample staging rack comprising at least one inclined feed ramp configured for receiving an elongated sample tube configured for holding the sample, the sample tube including a first end cap and a second end cap; an unloading apparatus coupled to the staging rack, the unloading apparatus configured to receive the sample tube from the staging rack; and a transfer mechanism operable to transfer the sample tube from the staging rack to the unloading apparatus. Method for unloading a sample container.

Abstract: A system may analyze agricultural materials. The system may include one or more inlets receiving the agricultural materials. The agricultural materials may be a slurry (e.g., soil slurry) including at least one solid and at least one liquid. The system may include a chamber configured to house the agricultural materials. The chamber may include a mixing device configured to mix the agricultural materials. The system may include a flow control device configured to stop the flow of the agricultural materials in a first state, or move the flow of the agricultural materials in a second state. The system may include an agricultural materials density device configured to determine the density of the agricultural materials when the flow of the agricultural materials is stopped in the first state and when the flow of the agricultural materials is moving in the second state.

Abstract: A system may analyze agricultural materials. The system may include one or more inlets receiving the agricultural materials. The agricultural materials may be a slurry (e.g., soil slurry) including at least one solid and at least one liquid. The system may include a chamber configured to house the agricultural materials. The chamber may include a mixing device configured to mix the agricultural materials. The system may include a flow control device configured to stop the flow of the agricultural materials in a first state, or move the flow of the agricultural materials in a second state. The system may include an agricultural materials density device configured to determine the density of the agricultural materials when the flow of the agricultural materials is stopped in the first state and when the flow of the agricultural materials is moving in the second state.

Abstract: A system may analyze agricultural materials. The system may include one or more inlets receiving the agricultural materials. The agricultural materials may be a slurry (e.g., soil slurry) including at least one solid and at least one liquid. The system may include a chamber configured to house the agricultural materials. The chamber may include a mixing device configured to mix the agricultural materials. The system may include a flow control device configured to stop the flow of the agricultural materials in a first state, or move the flow of the agricultural materials in a second state. The system may include an agricultural materials density device configured to determine the density of the agricultural materials when the flow of the agricultural materials is stopped in the first state and when the flow of the agricultural materials is moving in the second state.

Abstract: A system may analyze agricultural materials. The system may include one or more inlets receiving the agricultural materials. The agricultural materials may be a slurry (e.g., soil slurry) including at least one solid and at least one liquid. The system may include a chamber configured to house the agricultural materials. The chamber may include a mixing device configured to mix the agricultural materials. The system may include a flow control device configured to stop the flow of the agricultural materials in a first state, or move the flow of the agricultural materials in a second state. The system may include an agricultural materials density device configured to determine the density of the agricultural materials when the flow of the agricultural materials is stopped in the first state and when the flow of the agricultural materials is moving in the second state.

Abstract: An automated computer-controlled sampling system and related methods for collecting, processing, and analyzing agricultural samples for various chemical properties such as plant available nutrients. The sampling system allows multiple samples to be processed and analyzed for different analytes or chemical properties in a simultaneous concurrent or semi-concurrent manner. Advantageously, the system can process soil samples in the “as collected” condition without drying or grinding. The system generally includes a sample preparation sub-system which receives soil samples collected by a probe collection sub-system and produces a slurry (e.g., mixture of soil, vegetation, and/or manure and water), and a chemical analysis sub-system which processes the prepared slurry samples for quantifying multiple analytes and/or chemical properties of the sample. The preparation sub-system may comprise a slurry recirculation flow loop configured with devices to stir, measure, and adjust a water to solids ratio of the slurry.