Exp. IV. by James Stovin, Esq; of Doncaster. "In the year 1769, I made the following trial with the oil-compost, prepared as above directed. One acre sown with barley, and manured with oil-compost at 18s. produced five quarters, five bushels. An acre adjoining, sown with barley, and manured with 12 loads of rotten dung at 3l. produced four quarters three bushels and two pecks. The compost-barley was bolder and better corn than the other. In the year 1770, the dunged acre produced of rye, three quarters. The compost acre of ditto, two quarters six bushels. In the year 1771, the same lands were sown with oats, and the product was greatly in favour of the dunged acre. These experimental lands were in a common field that had been long under the plough."
Exp. V. by Richard Townly, Esq; of Belfield. "In the spring 1770, I prepared a piece of ground for onions. It was laid out into six beds of the same size, and which were all sown at the same time. Over two of them, the oil-compost was scattered in a very moderate quantity. Over other two, pigeons dung; and over the remaining two, some of my weed-compost, (formed of putrefied vegetables) which I esteem one of the best manures, for most vegetables, that can be made. The onions came up very well in all the beds; but, in about six weeks, those that were fed with the oil-compost, plainly discovered the advantage they had over the rest, by their luxuriance and colour, and at the end of the summer perfected the finest crop I had ever seen, being greatly superior to the
others both in quantity and size. The same spring I made an experiment upon four rows of cabbages, set at the distance of four feet every way. Two were manured with oil-compost, and two with my own. All the plants were unluckily damaged, just before they began to form, by some turkies getting into the field and plucking off the greatest part of the leaves. However, they so far recovered, in the September following, from 22 to 28 lb a-piece. The rows proved so equal in goodness, that I could not determine which had the advantage. The same year, one part of a field of wheat exposed to the north-east winds, which, that spring, continued to blow for a month or five weeks, appeared very poor and languid at the time of tilling. Over it I ordered some of the oil-compost to be sown with the hand; which not only recovered, but also pushed forwards the wheat plants in that part of the field, so as to make them little inferior, if any, to the rest. The same spring, I made a comparative experiment, upon four contiguous lands of oats, between the oil-compost and my own weed-compost. The latter had manifestly the advantage, though the other produced a very large and fine crop. I also tried the oil-compost upon carrots, and it answered exceedingly well. I did the same this year (1771) both upon them and my onions, and have the finest crops of these vegetables I ever saw any where upon the same compass of ground."