Thomas Jefferson’s Farm Book, page 84

VII. Plants.

Wheat.

G. Divers supposes that every Cubic yard of a stack of wheat yields generally 2. bushels of grain. a demi-cord then yields 4¾ bushels of grain & 475 of straw & chaff, or perhaps ¼ of a ton.

Jo. Watkins says he knows from actual experiment that wheat loses 2 in the bushel, weight, from Oct. to January which is 1. pr cent pr month.

he reckons the offal of a bushel of wheat worth 1/see below

2½ bush. of seed wheat to the acre produces the maximum. 1. Young. exp. agr. 271.

drilling in equidistant rows, those 1. foot apart produce the maximum. ib. 286. 292. 294.
in this way 2 bush. of seed per acre seems better than 2½ ib. 298.

all September & the first fortnight of October, in England, for sowing, produces most. 310.
too early sowing does more mischief after a clover lay than after a fallow. ib. 306.

as to change of seed he establishes these points. 1. wheats from the most opposite climates are best. 2. from opposite soils also, as clay wheats on gravel soil, or gravel wheats on clay soil. 3. wheat which has for some years been of the same neighborhood is worse than any change that can be made. 1. Exp. agr. 321.

for 5½ bushels of wheat a miller should give a barrel of fine flour, he keeping the offal

for 6. bushels he should give a barrel of [. . .] fine flour, he finding barrel & nails, & returng the offal.

6. bushels of wheat weigh 360
a barrel contains of fine flour 196
allowance for waste 20
sd
Offal. Seconds 25 = ½bush. of corn 25 = ½ bush. of corn 1–6
Shorts2. bushels 50. @ 1–6
bran3. bushels 69 @ 1/ per bushel 3
6–0

when wheat is @ 6/ per bush. then the offal is worth 1/ per bushel

to have a barrel of flour & the offal for 6/ instead of a barrel for 5½ is getting 6/ for the odd half bushel of wheat

1800. Sep 9. on accurate trial 3. bush. of wheat in the chaff as it came from the threshing machine yielded 1. bush. of clean wheat.
1814. May. 3. the period for sowing wheat is from Oct. 10. to Nov. 10. What is sown either earlier or later is subject to the fly.
Manuscript (Massachusetts Historical Society, Thomas Jefferson’s Farm Book, page 84). Scan available online here.

Source Information

Author Thomas Jefferson
Date 1800-1814
Place of Origin Monticello
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