upon Oats, Barley, and Wheat. 
271 
Management. — Ribbed and sown April 10, 1843, with barley 
and clover seeds. Manures applied as follows : — 
1 
1. , 2. 
3. 
4. 
5. 
6. 
7. 
Nothing. ! Rape-dust. 
i 
Guano 
Rape-dust 
and Salt. 
Nit. of 
Soda. 
Nit. of 
Soda and 
Sul. Soda. 
Salt. 
No. 1 . — \ acre. 
do. 
do. 
do. 
do. 
do. 
do. 
Nothing. 
Rape-dust, 3 bush., sown in the fuirows with the seed. 
Guano, 4 st. 
fRape-dust, 3 bush. 
< and 
[Salt, 3 St., 
Nitrate of soda, 3 st. 
f Nitrate of soda, 2 st. 
(Sulpliate of soda, 2 st. 
Salt, 8 St. 
do. 
do. 
do. 
do. 
applied as a top-dressing, May 3. 
do. do. 
jmixed, and do. ^ 
do. do. 
The remaining portion of the field (about 5 acres) was manured 
with 2 cwts. of guano per acre, in alternate lands or stitches, with 
12 bushels of rape-dust per acre. 
Observations. — The effects of the guano and rape-dust were 
distinctly marked from the first appearance of the plant — the 
portions left for a top-dressing being in one month a full week 
behind the Nos. 2 and 3. If anything. No. 3 had the lead of 
the two. 
At the beginning of June, the top-dressings had not begun to 
show any effects, Nos. 1, 5, 6, and 7, being much in the back- 
ground. Indeed the difference between them and Nos. 2, 3, and 
4, could be seen half a mile off. At this time No. 3 was very 
decidedly superior to No. 1. This was the case, too, throughout 
the field, the lands dressed with guano being very distinguishable 
by their superior luxuriance from those manured with rape-dust. 
A week of fine weather, about the middle of June, coming 
after a month of almost constant rain, made a wonderful improve- 
ment in the top-dressed portion ; so much so, that some of them 
(Nos. 5 and 6) came up with No. 2, which had not progressed 
so well as No. 3. No. 4, however, at this time pressed No. 3 
very closely in the race; so that, at the end of July, the whole 
field, with the exception of No. 1, (unmanured,) was a splendid 
crop. The experimental plots at this time stood as follows: — 
1. (No. 3) Guano — Splendid crop, thick and luxuriant. 
2. (No. 4) Rape-dust and salt — Do., not quite so luxuriant ; more forward. 
3. (No. 5) Nit. of soda — Nearly equal to the preceding ; ratlier more backward. 
^ J(No. 6) Do. and sulp. soda — Not quite so good as No. ; backward. 
\i,No. 2) Rape-dust — Equal to No. ; not quite so backward. 
5. No. 7) Salt — Not so luxuriant in the straw ; very forward. 
6, ( No. 1) Nothing — Very poor crop ; much worse than any of the above. 
