c 0
N T
ENTS.
Facts show little danger to exist when pro-
PAGE.
For barley and oats . .
PAGE.
. 347
perly performed
. 344
For wheat
ibid.
Differences in the method of performing theoperations
ibid.
Thickness of parings should depend on thenature of the soil
ibid.
Probably necessary from the differences of
Mr. Boys's opinion of
. 348
soil
ibid.
Usual depths of
ibid,
Manner of proceeding most useful in diffe-rent cases .
ibid.
Circumstances to be regarded in spreadingthe ashes .
ibid.
Skirting
. 345
Particular mode of, in some places
ibid.
Beat-burning
. ibid.
Objections to
ibid.
Implements employed in the performing of,
Expences of, in lighter sorts of soils
ibid.
different
ibid.
In fen districts . 349
—351
Advantages of each
. 346
Manure produced by
ibid.
Ploughs most expeditious when they can be used ibid.
Most advantageous methods of cropping
ibid.
Season for the process
. 347
after the process in different cases .
Dry weather highly necessary
ibid.
Estimates of the expence and profits of
. 353
Spring months generally the best
ibid.
Utility of the practice
. 355
Must vary, from the nature of crops
ibid.
How may be rendered' less necessary
ibid,
For rape and turnips
ibid.
General observations on
. 350.
SECTION X.
' FALLOWING OF LAND.
PAGE.
FALLOWING . . .358
In preparing lands by means of, variouschanges take place in the substancesthat form soils . . ibid.
A high degree of mellowness and pulveriza-tion mostly effected by it . ibid.
By such means the different materials be-come more uniformly and extensivelyblended together . . ibid.
Advantages of this in the grow h of crops . ibid.Dews and moisture more readily admitted
thereby . ibid.
Destruction of weeds in, also useful in im-proving the sods . . 359
Other 1 modes in which pulverization may be
beneficial . . ibid.
By admitting the atmospheric air moreabundantly into the interstices of' . the soils . . ibid.
By the formation of carbonic or other
acids in consequence of it . ibid.
Of ammonia, or volatile alkali . ibid.
Of nitrous acid . . ibid.
Of fluid carbonic acid . . ibid.
The practice of fallowing in these waysmere extensively beneficial 'than hasbeen supposed . . 360
Is more adapted to some sorts ofland than
others . » . . ibid.
In some, unnecessary or injurious . ibid.
page.
On the lighter and moredry soils . 3 Q 0
On such as are rich from the application
of manures . . ibid.
Mannet; in which it proves hurtful in
each _ . . ibid.
Useful in the wet, stiff, and tenacious clayey
soils, in various ways . , s6|
By permitting atmospheric air to entermore fully into the cavities of thesoils, the matters that promotevegetation are more extensivelyproduced . . ibid.
The roots of plants allowed to penetrateand take them up more freely bythe great increase of surface thatthus takes place . . ibid.
The destruction of weeds more effectual in
this way . . ibid.
Can only perhaps be effected in wet soils by
summer fallowing . . ibid.
Ploughing them in winter often renders
« them more stiff and adhesive . 362
Dry gravelly soils may mostly be managedwithout this process, but wet andclayey ones cannot . . ibid.
No modes of cropping perhaps fully effectual
in the latter . . ibid..
On such soils they will not therefore obviatethe occasional use of summer fal-lowing . . ibid,.