We expect to sell wheat and some corn, and if successful we shall
sell some soy beans, alsike seed, and red clover seed.

How soon we shall be able to get this system fully under way I shall
not try to predict; but we shall work toward this end unless we
think we have good reason to modify the plan.

I hope to make the initial application of limestone five tons per
acre, but after the first six years this will be reduced to two or
three tons. I also plan to apply at least one ton per acre of
fine-ground raw phosphate every six years until the phosphorus
content of the plowed soil approaches two thousand pounds per acre,
after which the applications will probably be reduced to about
one-half ton per acre each rotation.

There are three things that mother and I are fully decided upon:

First, that we shall use ground limestone in sufficient amounts to
make the soil a suitable home for clover.

Second, that we shall apply fine-ground rock phosphate in such
amounts as to positively enrich our soil in that very deficient
element.

Third, that we shall reserve a three-rod strip across every
forty-acre field as an untreated check strip to which neither
limestone nor phosphate shall ever be applied, and that we shall
reserve another three-rod strip to which limestone is applied
without phosphate, while the remaining thirty-seven acres are to