plot when multiplied by 200 is an approximation of the
yield an acre.

1. Testing of varieties of grains, vegetables, or root seeds, including
potatoes new to the district.

2. Testing different varieties of clovers and fodder grasses. These
plots should be so situated that they can remain for three years.

3. Thick and thin sowing of grain: Use plots not less than four feet
square. They may be tried most easily with wheat, oats, or barley,
although any species of grain may be used. Use four plots of the same
size, equal in fertility and other soil conditions. In No. 1 put grains
of wheat or oats, as the case may be, two inches apart each way. In No.
2 put the grains two inches apart in the row and the rows four inches
apart. In No. 3 put the grains four inches apart in the row and the rows
four inches apart. In No. 4 put the grains four inches apart in the row
and the rows eight inches apart.

If possible, weigh the straw and grain when cut and the grain alone when
dry and shelled out of the heads.

4. Deep and shallow growing of grain: Use four plots similar to those in
experiment No. 3. Put the same amount of seed in the different plots. In
No. 1, one inch deep; in No. 2. two inches deep; in No. 3, four inches
deep, and in No. 4, six inches deep. Note which is up first, and which
gives the best yield and best quality.

5. Early and late sowing: Three plots are required. Plant the same
amount of seed in each and cover to the same depth. Plant No. 1 as early
as the soil can be made ready; No. 2, two weeks later; and No. 3, two
weeks later than No. 2. Compare the quality and the yield.

6. Effect of sowing clover with grain the first year: Only two plots are
required. Sow the same amount of wheat or oats on each plot. On one
plot put a moderate supply of red clover and none on the other. Weigh
(or estimate), as in Experiment 3 above, the straw and the grain
produced on each.

7. Effect of a clover crop on the grain crop succeeding it the following
year: The same two plots must be used as in No. 6. When the grain was
cut the previous autumn, the plots should have been left standing
without cultivation until spring. When the clover has made some growth,
spade it down and prepare the other plot in the same way. Rake them
level and sow the same amount of grain in each again. Weigh the crops
produced on each.

8. Test quality, yield, and time of maturity of several varieties of the
same species. Samples of such va