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design_type - The shorthand for the design type. Must exist in the database. Possible values include CRD (Completely Randomized Design), RCBD (Randomized Complete Block Design), Alpha (Alpha Lattice Design), Lattice ( Lattice Design), Augmented (Augmented Design), MAD (Modified Augmented Design), Greenhouse (Greenhouse layour/design), p-rep (Partially replicated design), Westcott splitplot (Westcott Designsplitplot design), Lattice Westcott (Lattice Westcott Design).
description - Additional text with any other relevant information about the trial.
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