An Essay on Calcareous Manures, Volume 1 |
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Common terms and phrases
abundant acid soils acre action agricultural applied azote barren benefit bushels calcareous earth calcareous manures calcareous matter calcareous soil calxing carbonate of lime carbonic acid carts cause cent chalk chemical chemists clay clover colour combination constitution contain corn course crop cultivation digging effects eocene excess existence experiments facts farm farmers feet fertility field finely divided fossil shells furnished grains greater green-sand growth gypseous earth gypsum heaped humate humic acid humus improvement inches increase inferred injurious James river kind known labour layer less lime-stone loam lower Virginia magnesia measure miocene muriatic acid natural nearly neutral soils obtained operation opinion plants ploughed present profit proportion putrescent manures putrescent matter qualities quantity reous rich river salts sandy soils serve silicious sand soluble sorrel specimens sub-soil substance sulphate supply supposed surface texture tillage tion usually vegetable acid vegetable matter wheat whole
Popular passages
Page 151 - There is no operation of nature heretofore less understood or of which the cause or agent seems so totally disproportioned to the effect as the enormous in46. Page 151. crease of vegetable growth from a very small quantity of gypsum in circumstances favorable to its action. All other manures, whatever may be the nature of their action, require to be applied in quantities very far exceeding any bulk of crop expected from their use. But one bushel of gypsum spread over an acre of land fit for its action...
Page 190 - ... land, under the plough, is a fine, deep, mellow, putrid, sandy loam, adhesive enough to fear no drought, and friable enough to strain off" superfluous moisture ; so that all seasons suit it: from texture, free to work, and from chemical qualities, sure to produce in luxuriance whatever the industry of man commits to its friendly bosom. The husbandry is good, but by no means perfect. The relative contents of these districts arc found by measurement to be : Square Miles.
Page 413 - If on washing a sterile soil it is found to contain the salts of iron, or any acid matter, it may be ameliorated by the application of quick lime.
Page 10 - A NEW AND COMPREHENSIVE GAZETTEER OF VIRGINIA, AND THE DISTRICT OF COLUMBIA : CONTAINING A COPIOUS COLLECTION OF GEOGRAPHICAL, STATISTICAL, POLITICAL, COMMERCIAL...
Page 35 - The ridge lands are always level and very poor, sometimes clayey, more generally sandy, but stiffer than would be inferred from the proportion of silicious earth they contain, which is caused by the fineness of its particles." These evils " vary between sandy loam and clayey loam.
Page 8 - A Guide to Commissioners in Chancery, with practical forms for the discharge of their duties; adapted to the new Code of Virginia, by JAMES M. MATTHEWS, Attorney at Lawj author of "Digest of the Laws of Virginia.
Page 58 - E equal to it in bulk, and this water flows through the tube into the graduated measure ; and gives by its volume the indication of the proportion of carbonic acid disengaged from the soil; for every ounce measure of which two grains of carbonate of lime may be estimated.
Page 58 - E the bottle for containing the bladder. When this instrument is used, a given quantity of soil is introduced into A. B is filled with muriatic acid diluted with an equal quantity of water ; and the stop-cock being closed, is connected with the upper orifice of A, which is ground to receive it.
Page 58 - When the stop-cock of B. is turned, the acid flows into A, and acts upon the soil ; the elastic fluid generated passes through C into the bladder, and displaces a quantity of water in...
Page 74 - If the noxious quality which causes such injury is an acid, it is as certain as any chemical truth whatever that it will be neutralized, and its powers destroyed, by applying enough of calcareous earth to the soil ; and precisely such effects are found whenever that remedy is tried. On land thus relieved of this annoyance the young corn (maize) no longer appears of a pale and sickly green, approaching to yellow, but takes immediately a deep healthy colour.