, t 
194 
The Woburn Field Experiments , 1904. 
Table I. — Continuous Growing of Wheat , 1904 ( 28th Season). 
(Wheat grown year after year on the same land, the manures being 
applied every year.) 
Stackyard Field — Produce per acre. 
Plot 
1 
2a 
2b 
i5 
6 
7 
8a 
8b 
9a 
9b 
10a 
10b 
11a 
lib 
Head corn 
Tail 
corn 
Straw, 
Value 
per 
Manures per acre 
Wght. 
No. 
of 
bush. 
Wgt. 
per 
bush. 
-a 
*53 
£ 
chaff, 
&c. 
quarter 
on basis 
of 32s. 
Lb. 
Lb. 
Lb. 
C. q. lb. 
s. d. 
Unmanured 
267 8 
4-43 
61'0 
5 
4 1253 
30 6 
( 1 2 Ammonia salts (containing 1 
1 50 lb. ammonia) . . j 
16 
— 
— 
6 
0 14 
32 0 
(Ammonia salts (containing) 
-j 50 lb. ammonia) with 2 tons > 
l lime, December, 1897 . ) 
164 
27 
60'0 
2 
3 017 
31 6 
( Nitrate of soda (containing ) 
t nltrogen=50 lb. ammonia) J 
261 
4-5 
58‘0 
5 
4 3 25 
31 0 
( 2 Mixed mineral manures) 
J (sulphates of potash, soda, ! 
1 and magnesia, with super- j 
V phosphate) . . . ) 
411 8 
6'6 » 
617 
5 
6 3 23 
32 0 
( Mixed mineral manures and ) 
s ammonia salts (containing v 
( 50 lb. ammonia) . . ) 
263 
4'2 
62-0 
3 
3 2 6 
32 6 
( Mixed mineral manures and ) 
■< nitrate of soda (containing > 
l nitrogen=50 lb. ammonia) ) 
776 
* 
12'9 
597 
9 
11 1 19 
31 6 
Unmanured 
455 
7'4 
61-5 
5 
0 123 
32 0 
(Mineral manures, ammonia) 
J salts (=100 lb. ammonia) [ 
) omitted (in alternate years, ( 
V including 1904) . . ) 
(Mineral manures and (in al-) 
J ternate years, 1904 included) ( 
J ammonia salts (=100 lb. am- j 
V monia) ) 
/Mineral manures, nitrate of\ 
soda (containing nitrogen= 
-< 100 lb. ammonia) omitted (in V 
alternate years, including 
V 1904) J 
(Mineral manures and (in al-) 
J ternate years, 1904 included) I 
j nitrate of soda (containing [ 
V nitrogen=100 lb. ammonia) ) 
17 
348 
331 
1,027 
5'6 
5‘5 
171 
62'0 
60'0 
60-0 
5 
4 
6 
10 
0 110 
4 10 
3 3 24 
15 2 26 
32 6 
32 0 
31 6 
32 0 
j 1889, rape cake (=50 lb. am- ) 
t monia). No manure since J 
303 
4'9 
62-0 
4 
5 18 
32 0 
f Rapecake(=1001b.ammonia) ) 
t every year since 1890 . j 
883 
14’6 
60-5 
14 
16 014 
31 6 
(1877-1881, farmyard manure) 
■j (=200 lb. ammonia). No ( 
(. manure since . . . J 
554 
9‘0 
61-2 
8 
8 2 2 
32 6 
( Farmyard manure (=200 lb. I 
\ ammonia) every year . ) 
748 
12-2 
61-2 
12 
13 1 8 
32 6 
Remarks 
( Poor miller’s wheat ; 
■{ and more yellow than 
l plot 7 
(Not so even as 8b, and 
( less strength 
Looks blighted: 
stronger wheat than 
2a, and larger grain 
than 10b 
( Badly matured and 
i thin, but more 
l strength than plot 1 
[Less colour and 
•j strength than plot 7, 
( equal to plot 10a 
'Does not contain so 
much thin corn as 8a; 
good average miller’s 
wheat; well filled out, 
but not quite so 
strong as 8a 
| Badly matured, practi- 
1 cally the same as 9b 
( Decidedly better wheat 
-j than plot 1 ; bigger 
v berry and more bloom 
( Runs plot 5 very close; 
contains more thin 
corn, but is a stronger 
wheat 
(More even and more 
strength than 2a ; not 
(. quite so much bloom 
( Bigger wheat than 
l 10b, but less strength 
( Useful lot of wheat, 
< fairly strong, not 
\ fully matured 
( Equal to plot 4, with 
1 less colour and 
(, strength than plot 7 
( Small grain wheat, 
-( practically the same 
( as 2b 
( Nice small berry, and 
t well filled out 
( Very like 11a, but con- 
tains more drossy 
wheat than plots 6, 
8a, 11a 
1 Ammonia salts are equal weights of sulphate of ammonia and muriate of ammonia. 
2 Mixed mineral manures are, throughout, 3£ cwt. superphosphate of lime, 200 lb. sulphate of 
potash, 100 lb. sulphate of soda, 100 lb. sulphate of magnesia per acre. 
8 These plots were injured by trees near them. 
