Mr. Wright's ^Agricultural Ex^^erimenls. 179 



quantity decreases every time as the seed is laid deeper. I shall beg leave to 

 assign two reasons for it, though, perhaps, neither of them the real cause. First, 

 by harrowing Mo. 1, previous to sowing, the surface was laid even, and the seed 

 fell much more regular over it ; whereas, when seed is sowed upon rough land, it 

 is not uncommon to see ten corns lie in a square inch, and a square foot near it, 

 without one, owing to the seed rebounding, and falling into the lowest parts ; it 

 likewise gets buried at different depths, and consequently is not all up together. 

 Secondly, by ploughing, it is unequally distributed, and some of it totally buried, 

 especially that four inches deep. After all, this, like a great deal of other agricul- 

 tural practice, must be left to the skill of the agriculturist ; for upon a dry burning 

 soil, highly manured, and a hot, dry summer, the ploughed in might answer the 

 best ; but upon a cool, loamy soil, I should prefer the harrowing. 



Experiment IV. 



An Experment made to ascertahi the Ejjects of Manures for Barley, on naked 



Fallow. 



April 11th, 1805. Nine half roods were measured off, manured, and sowed as 

 follows, with two pecks of barley each : 



No. 1. Manured with one cart load of long fresh stable dung. 



No. 2. Two ditto. 



No. 3. Three ditto. 



No. 4. One fourth of a load of the same dung, rotten spit dung. 



No. 5. One half of a load ditto. 



No. 6. Three fourths of a load ditto. 



No. 7. Three quarters of a ton of barley straw, spread over and burnt immedi- 

 ately before sowing the seed, and well harrowed in. 



No, 8. Three quarters of a ton of bean straw, burnt the same. 



No, 9. No manure: all mowed Sept, 9th. 



