The Partitions being one Sixth-part for the Crop to stand on, and to be nourished in the Winter, one other Sixth-part being well pulveriz’d, may be sufficient to nourish it from thence till Harvest[251]; the Remainder, being Two-thirds of the Whole, may be kept unexhausted, the One-third for one Year, and the other Third of it Two Years; all kept open for the Reception of the Benefits descending from above, during so long a time; whilst the sowed Land is shut against them every Summer, except the little time in which it is fallow’d, once in Three Years, and a little, perhaps, whilst they plow it for Barley in the Winter, which is a Season seldom proper for pulverizing the Ground. [251] This may be done, tho’ the Roots of a competent Number of Plants run through the Whole, in the manner herein before explained. Their Land must have been exhausted as well by those supernumerary Plants of Wheat, while they lived, as by those that remain for the Crop, and by the Weeds. Our Land must be much less exhausted, when it has never above one Third-part of the Wheat-plants to nourish that they have, and generally no Weeds; so that our ho’d Land having much more vegetable Pasture made, and continually renewed, to so much a less Stock of Plants[252], must needs be left, by every Crop, in a much better Condition than theirs is left in by any one of their sown Crops, altho’ our Crops of Corn at Harvest be better than theirs[253]. [252] Therefore, whenever a Soil receives more Supplies of fine Earth from the Atmosphere, than is exhausted by all the Plants that grow in the Soil, it becomes richer; but if the contrary, then it becomes poorer.