I 345 1
courſes of crops, and found that the degree of exhauſtion of the ſoil was in propbrtion to the potatoes occurring in thoſe courſes(a..
At Slaine, in Ireland, wheat is ſown after them, but generally a bad crop, and bad grain: barley good(e.
In Suffolk, wheat found ſo bad after them, that there is no doubt of their exhauſting much%.
Mr. Hollins gained thirty buſhels of wheat after them(..
Mr. Barbor, had a better crop of wheat after them than ever ſeen in the neighbourhood(H).
In France, many obſervations have been made, tending to prove that they do not exhauſt().
Experiment in Scotland.— Half a large field carefully dreſſed and dunged, cropped with turnips, and the other half with potaroes; then barley and graſs ſeeds. The potatoe-half carried the beſt barley, and ſooneſt ripe; and the lay for two years the weightieſt crop(ε.⁴. N. B. Not ſaid whether the turnips were carted off.—.
In Ayrſhire, good wheat after them(1.
In Edinburghfhire, wheat better after them than after oats(m).
In Eaſt Lothian, found not to be an exhauſting crop(/).
Sir James Grant had better barley after potatoes than after turnips(%). In Vorkfhire, opinions various; one party afſerts, that they are great impoveriſhers of the ſoil; hurtful to corn, and ruinous to graſs. The other, that they are friendly to corn, and not enemies to graſs(p).
Mr. Whyn Baker, ſowed barley after various preparations; the reſult as ollows:
8
Produce Barrels
of Barley.
Bar. ſt. Ib.
Red French Potatoes——— 18 9 2
Black ditto——— 16 4 8
White Munſter ditto—— 12 13 10
Flat Dutch Cabbage, drawn—— 13 2 4
Horſe Beans and Turnips, dravn—— 13 06
Red Cabbage, drawn—— 12 13 10
Vetches, for Hay and Turnips, drawn— 12 11 6 Turnips, drawn—— 12 9 2(2) (4) Vol. 23. p. 505.(e) Iriſh Tour, vol. 1. p. 27.) Society Tranſ. vol. 4. p. 69, 82.(g) Ibid. vol. vI. p. 80.(4) Vol. 11. p. 92: (i) Parmentier Traité de Pommes de Terre, p. 164.(¼) Wight, vol. 3. p. 5. () Ibid. p. 191.(m) Ibid. vol. 4. p. 450.(n) Ibid. vol. z. p. 133. (c) Ibid. vol. 4. part 1. p. 384.(b) Marſhal York, vol. 2. p. 64.() Experiments
reported to the Dublin Society, 1723, P. 83,