CALCAREOUS MANURES-PRACTICE. 



79 



On marled land, close adjoining on one side, 

 363 square yards made rather more than 6 gallons— to the acre, 10 bushels. 

 363 square yards on another side, made not quite 8 gallons, 



or to the acre, 12 bushels. 



The piece not marled coincided with that measured in 1828, as nearly 

 as their difference of size and shape permitted— as did the last named 

 marled piece, with the two of 1828. The last crop was greatly injured 

 by the wettest summer that I have ever known, which has caused the 

 decrease of product exhibited in this experiment— which will be best seen 

 in this form : 



Product of grain to the acre, 

 1828— October 18. 1831— October 20. 



Not marled, - - - 7 bushels 1 peck. - 5 bushels. 



Marled, (averaged,) - -13" 3 " -11" 



Experiment 6. 



The remainder of the thirty acres was grubbed during the winter of 

 1826-7 — marled the next summer at five hundred to six hundred bushels the 

 acre; marl 40 per cent. A rectangle (A) 11 by 13 poles, was laid off by 

 the chain and compass, and left without marl. All the surrounding land 

 supposed to be equal in quality with A— and all level, except on the sides 

 E and B, which were partly sloping, but not otherwise different. The soil 

 suited to the general description given before ; no material difference known 

 or suspected between the land on which 5th experiment was made and this, 

 except that the latter had not been robbed of any wood for fuel, before 

 clearing. The large trees (or all more than ten inches through,) were 

 belted, and the smaller cut down in the beginning of 1828, and all the land 

 west of the line e/ was planted in corn. As usual, the tillage bad, and the 

 crop very small. The balance lying east of e f, was coultered once, but as 

 more labor could not be spared, nothing more was done with it until the 

 latter part of the winter, 1829, when it was broken by two-horse ploughs, 

 oats sown and covered by trowel ploughs— then clover sown, and a 

 wooden-tooth harrow passed over to cover the seed, and to smooth down, 

 in some measure, the masses of roots and clods. 



Results, 1829. The oats produced badly— but yicldcil more for the 

 labor required than corn would have done. The young clovei on the marled 

 land was remarkably good, and covered the surface completely. In the 

 unmarled part, A, only two casts through had been sown, lor comparison, 

 as I knew it would be a waste of seed. This looked as badly as had been 

 expected. 



