AGRICULTURE WITH CHEMISTRY. j^- 



Clover, saint foin, cabbages, turnips, leguminous crops, 

 hemp, and those plants which overshadow the ground, 

 and cause a stagnation of air, prevent thereby the ex- 

 cessive exhalation of moisture, and promote the putre- 

 fadion or decomposition of vegetable matters contained 

 in the soil : such crops will therefore prove more oecono- 

 mical and beneficial to subsequent crops, than the present 

 system of fallowing. 



By fallowing, not only one yearns rent and labour are 

 lost. V)Ut likewise the vegetable matter contained in the soil 

 is thereby rendered less fit to promote the growth of sub- 

 sequent crops. Fallowing should be pradtised but spar- 

 ingly; its principal use is in altering the mechanical 

 arrangement of the soil, either by -pulverising it, or 

 making it more compacl, (both of which cfTc6ls, according 

 to circumstances, are thereby produced). and in destroying 

 root, seed weeds, orinseds. These objcdls being attained, 

 recourse should never be had to the same operation, unless 

 it becomes requisite from the faihjre of crops, or other 

 incidental causes, which are best provided against by sub- 

 stituting the culture of drill crops instead of a fallow. 



To 



