[143]Weeds cannot be killed before they grow, but will lie dormant, as they do in our Partitions, and in their sown Land; and while Seeds are in the Ground, they are always ready to grow at the first Opportunity, and will certainly break out at one time or other; so that preventing their coming, is only like healing up a Wound before it be cured.

Some object against my Method of[144] weighing a Yard, or a Perch in Length of a Row, saying, this does not determine the Produce of a whole Field.

[144]I did not weigh this Yard, as different from the other Yards round about it, for I had much Difficulty to determine which Row I should chuse it in; when I was going to cut in one Row, it still seemed that another was better, and I question whether I did chuse the best at last.

Note, Whereas I often mention the Wheat of this Field to be without Dung or Fallow, it must be understood of that Part of the Field wherein my Weighings and other Trials were made: because there was a small Part once fallowed Eight or Nine Years ago, and a little Dung laid on another Part about the last Michaelmas, after the Crop of Oats was taken off. But this being a Year in which Dung is observed to have little or no Effect on sown Wheat (my Dung being weak and laid thin), ’tis the same here; for those Rows which are in the dunged Part, can hardly be distinguished from the rest of the Rows which had not been dunged: And yet the Ends of the Rows which were cleansed of Weeds, are very distinguishable by the Colour of the Wheat, though some are the Third, and some the Fourth Crop since the Difference was made; and the whole Rows managed alike every Year, from that time to this; so that here Un-exhaustion is more effectual than Dung. This is certain, that neither Dung nor Fallow hath been near the Part wherein my Experiments were made.

I answer, that they judge right, if the Produce of the whole Field be not of equal Goodness; but if it be not, it must be because one Part of the Field is richer, or differently managed from the other Part: For the same Causes that produce Twenty Ounces of clean Wheat upon one Yard, must produce the same Quantity upon every Yard, of a Million of Acres.

When the Crop of half a Field is spoiled by Sheep, not hoed at all, or improperly, it would be ridiculous to compute the whole Field together for an Experiment: We might indeed weigh the poorest, to prove the Difference of the one from the other, to try (as they sometimes seem to do) how poor a Crop we can raise; but my Design was, to try how good a Crop I could raise with a Tenth Part of the common Expence.

And I have often weighed the Produce of the same Quantity of Ground[145], of all Sorts of sown Wheat, both the best and the worst; but never have found any of the sown equal to the best of my drilled. Indeed we have none of the richest Land[146] in our Country within my Reach, that being not above One Mile.

[145]I allow Two square Yards of their Crops to One Yard in Length of my Treble Row.

[146]I am sorry that this Farm, whereon I have practised Horse-hoeing, being situate on an Hill, that consists of Chalk on one Side, and Heath ground on the other, has been usually noted for the poorest and shallowest Soil in the Neighbourhood.

As a Yard in Length of my treble Row of the Third successive Crop of Wheat, without Dung or Fallow, produced Twenty Ounces of Wheat; which, allowing Six Feet to the Ridge, is about Six Quarters[147] to an Acre; and, allowing Seven Inches to each Partition, and Two Inches on each Outside, is in all Eighteen Inches of Ground to each treble Row, and but just One-fourth Part of the Ridge. Now, if, in the old Husbandry, the Crop was as good all over the Ground, as it was in these Eighteen Inches of the treble Row, they must have Twenty-four Quarters to an Acre; but let them dung whilst they can, they will scarce raise Twenty-four Gallons of Wheat the Third Year, on an Acre of Land of equal Goodness; and let them leave out their Dung, and add no more Tillage in lieu of it, and I believe they will not expect Three Quarters to an Acre, in all the Three Years put together.