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10 9 13 C
11 2 4 C
12 1 2 C
13 9 14 D
14 6 9 D
15 7 10 D
16 5 6 D

4. Draw the lay out, assign plot number, and indicate the
treatment assignment. The final layout is shown in the figure below.

1 C 2 C 3 A 4 C
5 A 6 D 7 A 8 B
9 D 10 D 11 B 12 A
13 C 14 D 15 B 16 B

Final Field Lay out of an experiment with 4 treatments and four replications
in CRD with treatments randomized by drawing cards.

CLASS ACTIVITY:

Prepare a Final Field Lay Out for a study with 5 treatments replicated
4 times. Construct a table to show the sequence, Number, Rank and
Assignment of the Treatments in the Experimental units. (30 points)

RANDOMIZATION AND LAY OUT USING THE TABLE OF RANDOM

NUMBERS

Step by step procedure for randomization and lay out of a CRD for a field
experiment with 4 treatments A, B, C, and D, each replicated 5 times.

 STEP 1. Determine the total number of experimental plots (n) as
the product of the number of treatments(t) and the number of
replications (r):
o N = (r) (t), example n = (5) (4) = 20
 STEP 2. Assign a plot number to each experimental plot in any
convenient manner: Example, consecutively from 1 to n……plot
numbers 1…………20 are assigned to the 20 experimental plots as
shown in figure 1.

 STEP 3. Assign the treatments to the experimental plots by any of
the following randomization schemes: :