Lawes and Gilbert have the following concise and interesting remarks: “At this third experimental harvest, we have on the continuously unmanured plot, namely, No.
The untilled and unmanured grass lands of Herkimer County, in this State, are no richer to-day than they were 50 years ago.
The following is the result compared with the yield of the continuously unmanured plot in the experimental field that is sown to wheat every year: 1.
The weight per bushel on theunmanured plot was 45 lbs.
It will enable us to do this very thing, and the land runs no greater risk of exhaustion than Mr. Lawes’ unmanured wheat crop.
The winter was very unfavourable for the plants in our cold wet soil, and in the unmanured part of the field many of them perished, and those that survived made very little progress, from having no stimulus at the roots.
In 1864 this plat gave double the yield of an adjoining plat which had been left unmanured during the eight years.
If a good dressing of manure be given half the land, affording proper conditions for making a sod, the result will be a heavy growth of clover, while the seeding on the unmanured half will be nearly a failure.
In the province of Yaroslavl, for example, the Communal land is generally divided into two parts: the manured land lying near the village, and the unmanured land lying beyond.
In the artichoke field (probably light soil not lately manured), and even in an asparagus bed unmanured for one year, the amount of carbonic acid is not greatly larger.
Thus clover removes a much larger amount of nitrogen than wheat, the quantity being on unmanured land, say 30.
Taking the average of the forty years, it will be found that the produce of the manured land averaged 49 bushels per acre per annum, while the unmanured land gave only 16½ bushels.
Unmanured pasture, on the other hand, is more complex in its herbage.
The average for thirteen years on unmanured fallow soil has been 37.
There was further added to all the experiments (the unmanured ones, of course, as well) an excess of nitrogen and potash.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "unmanured" in a variety of sentences. We hope that you will now be able to make sentences using this word.
