Cultivation of Arable Land. After -management of new Grafs Lands. 34.9 



following fubftances have been found by the fame gentleman to have confidcrable 

 powers. On (t the application of marl he mentions one fact, which is, that he 

 has known it fuccefsful in fixing the white clover on ftrong cold land, from which 

 it is very apt to difappear. He has like wife found folding of great advantage in 

 fixing and forwarding the white clover. Coal-aihes will, he fays, produce this 

 clover on wet land ; but unlefs the land is drained, it wiM foon grow weak or 

 difappear.&quot; It has alfo been obferved, that on the drier clayey lands in Cornwall, 

 &quot; fea fand is found to mellow the clay and make them hold the graifes.&quot; And or 

 what are often termed ftone brafh lands the ufe of marl is found of great utility, 

 when applied in the latter part of the fummer of the firft year of the lay. But 

 it is neceflary, to the fuccefs of this fort of application, that the ground be well 

 covered with grafs before it is applied, as where the furface is much expofed the 

 marl is liable to plafter and cake together, and the young grafs-plants to be in 

 confequence expofed to much injury from the heat of fummer. This fubflance 

 feems to bring up the bed fort of natural grafles. In time this is, however, funk 

 below the reach of vegetation. About thirty cart loads are fufficient for the acre. 

 And chalk on the deep loamy clays is found an ufeful application the ftrft year on 

 new lays, in the proportion of about twenty loads to the acre.* And on the more 

 fandy defcriptions of land clayey marl may be of great advantage in eftablifhing the 

 grafs. On peaty or moory lands marl and other fimilar materials will be of ad 

 vantage in rendering them more compact, and better fuited for prefer ving the gralfes; 

 and fand and road Huff for fining the herbage. 



The advantages from the two following fubftances do not feem fo important. 

 Soot has been much ufed as a top-drefling, but Dr. Wilkinfon has not obferved 

 * the effects to lad beyond the firft year. He has tried it to the amount of fixty 

 bufhels per acre, at Sd. per bufhel ; perhaps it mould be ufed in larger quantity. 

 Lime is nearly as dear, and of that he has ufed 160 bumels per acre on arable hind. 

 If he ufes foot again he intends to lay it on to that amount. But he has ufed fugar- 

 baker s fcum with great fuccefs to the amount of two loads an acre, at half a guinea 

 per load, which has been found a ftrong warm manure, highly ferviceable on cold 

 land, its effects being permanent.&quot; Lime is found ufeful on the more friable red 

 Joamy foils, by fixing and rendering them more clofe, to keep the vegetation more 

 to the furface, as well as to promote the growth of the natural graffes, and prevent- 

 their roots from being injured by the heat of the fun. 



The following materials are probably chiefly ufeful in protecting and nourifhing 



* Davis in Communications to the Board, &c. vol. III. 



