FERTILIZERS. 107 



waste land, rocky pastures, and hillsides which neither 

 the plough nor manure cart could reach. This was made 

 practicable by the use of commercial fertilizers. The 

 professor's plan is, in brief, to dig holes three or four feet 

 across, throwing out the earth to the requisite depth, and 

 then, with picks, loosening the soil eighteen inches deeper 

 if practicable. Make a mixture of half bone, half potash, 

 and, when planting, scatter about four good handfuls over 

 the soil thrown out before planting, and as much more in 

 the holes when they are half filled up with earth. Mulch 

 with waste hay or tan. Apply the same amount of manur- 

 ing yearly for a few years, until the trees are well estab- 

 lished and in a thrifty condition. I have planted a hundred 

 or more trees in this way on my waste hilly pasture-land, 

 and am thus far pleased with their promise. 



IN LAYING LAND DOWN TO GKASS. Finely ground 

 bone harrowed in at the time of laying down, at the rate 

 of from five hundred to a thousand pounds to the acre, 

 will be found to be an excellent manure, and a lasting one. 

 If the bone is stemmed, it can be used in a coarser state. If 

 the grass is light upland (such land is better for corn than 

 grass), then have half of the bone in the form of acid 

 phosphate. When wood ashes are accessible, test your 

 upland, and manure a portion with a mixture of the two, 

 using value for value of each, and be governed in the 

 future by the results. In bone and ashes we have a com- 

 plete manure, all of the three elements being present. 



FOR CORN. In the valuable experiments inaugurated 

 by the Connecticut experimental station, in the experi- 

 ments with barn manures and various fertilizers on corn, it 

 was found that the mixture of three hundred pounds of 

 superphosphate with one hundred and fifty pounds of 

 muriate of potash gave the greatest profit, though not the 

 largest crop ; the average yield in fifty-three experiments 



