for Twenty Years in succession on the same Land. 143 
quality. The barley-crop was also very variable, but, perhaps, 
upon the whole rather better than wheat. Oats were more uni- 
formly bad. 
In accordance with the characters of the crop of the country, 
the experimental wheat-crop was very variable ; much below the 
average under most conditions of manuring, but above it under 
others ; and particularly so with farmyard-manure, and the mixture 
of mineral manure and nitrate of soda — a point to which further 
reference will be made presently. The results in the experimental 
barley-field were as follows : — 
Table XIX. — Quantity and Quality of Barley on Selected Plots. 
Ei2;hteenth Season, 1869. 
Plots. 
MANURES, PER ACRE. 
1 0 
4 0 
1 A 
4 A 
4AA 
4C 
14 Tons Farm-yard Manure 
Utimanured 
Mixed Mineral Manure 
200 lbs. Ammouia-salts 
Mixed Mineral Manure, and 
200 lbs. Ammonia-salts 
Mixed Mineral Manure, and\ 
275 ll)s. Nitrate Soda (') j 
Mixed Mineral Manure, and^ 
1000 lbs. (^) Rape-cake ../ 
PRODUCE PER ACRE, &c. 
Dressed Com 
Quantity. 
Bushels. 
46J 
15i 
49i 
49^ 
Weight 
per Bubh. 
Total 
Corn. 
lbs. 
56-4 
52-4 
54-6 
52-4 
lbs. 
2746 
840 
1286 
1599 
Straw 
and 
Chafif. 
57-4 ! 2848 
57-1 
57-4 
2929 
3065 
Cwts. 
281 
11 
121 
181 
34| 
38i 
35i 
Total 
Produce 
(Corn and 
Straw). 
lbs. 
5959 
2075 
2729 
3640 
6701 
7194 
7001 
Corn 
to 
KlO 
Straw. 
85-5 
68-0 
89-2 
78-4 
73-9 
68-7 
77-9 
(') 400 lbs. Ammonia-salts the first 6 j'ears (1S52-7), 200 lbs. the next 10 years 
(18.')8-67) ; 275 lbs. Nitrate Soda, 1868, and since. 
{-) 2000 lbs. the first 6 years (1852-7). 
The seed was sown on March 13th ; the earlier crops were 
cut on August 5th, and carted on August 16th ; and the later 
cut on August 19th, and carted on August 25th. Between 
cutting and carting there was some cold and showery weather ; 
but notwithstanding the later crops (those not manured with 
superphosphate) had the benefit of much hotter and drier weather 
before being carried, than the earlier (which were manured with 
superphosphate), the latter gave by far the higher weight per bushel ; 
considerably higher indeed than the average. Unlike the wheat, 
the experimental barley gave, under liberal manuring, very gene- 
rally more, both corn and straw, than the average ; but without 
manure, with mineral manure alone, and with ammonia-salts 
alone, the produce, more especially of corn, was considerably 
below the average. The crop was, upon the whole, bulky, being 
heavy in straw ; so that even where the produce of corn was 
more than the average, the proportion of corn to straw was less 
than the avera<re. 
