for Ttrcnft/ Years in s^iccession on the same Land. 
149 
<Ionerally well got in ; but, besides injury from wire-worm, they 
sufrered from the heat and drought more than either wheat or 
barley, and gave, upon the whole, a very light crop throughout 
Midland, Eastern, and Southern districts. 
The experimental wheat-field gave, under all conditions of 
manuring, considerably less than the average produce of straw ; 
but, without manure, ajid with farmyard-manure, about the 
average, and with liberal artificial manuring (mineral manure 
and ammonia-salts or nitrate of soda) considerably more than the 
average quantity of corn. Under all conditions the weight per 
bushel was much over the average ; in fact, generally, though not 
uniformly, as high as in any preceding year. The following 
results were obtained in the experimental barley-field : — 
Table XX. — Quantity and Quality of Barley on Selected Plots. 
Nineteenth Season, 1870. 
PRODUCE PER ACRE. &c. 
riuts. 
MANURES, PER ACRE. 
Dressed Corn. 
Total 
Com. 
Slraw 
Total 
Produce 
(Cora and 
Slraw). 
Corn 
Quantity. 
Weight 
per Bush. 
and 
Chaff. 
to 
100 
Straw. 
1 0 
4 0 
i A 
4 A 
4 A A 
4C 
14 Tons Farm-yard Manure 
Mixed Mineral Manure 
200 lbs. Ammonia-salts 
Jlixed Mineral Manure, and"! 
•200 lbs. Ammonia-salts .. / 
Mixed Mineral Manure, andl 
27.') lbs. Nitrate Soda (') / 
Mixed Mineral Manure, audi 
1000 lbs. (=) Rape-cake .. / 
Bushels. 
47^ 
13i 
27f 
38 
44^ 
43f 
lbs. 
57-1 
52-9 
5.5-6 
54-6 
57-1 
57-1 
.58-0 
lbs. 
2734 
751 
1053 
1539 
2197 
2571 
2569 
Cwts. 
19f 
6i 
18i 
181 
20^8 
lbs 
4950 
1489 
2101 
2945 
4287 
4621 
4857 
123-4 
101-8 
100-5 
109-4 
105-1 
125-4 
112-3 
(•) 400 lbs. Ammonia-salts the first G years (1852-7), 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 15; the usually earliest plots 
were cut on July 27, and carted on August 5 ; and the remainder 
-were cut on August 8, and carted on August 12. With a very 
-unusually deficient rain-fall from the date of sowing until harvest, 
and also a great deal of hot weather, the amount of total produce 
(corn and straw together) was, as might be expected, very much 
below the average ; and the deficiency of straw was throughout 
greater than that of corn. Without manure, and with mineral 
manure alone, the produce of corn was only two-thirds the average, 
and that of straw even less, especially without manure. In most 
other cases the produce of straw was only about two-thirds the 
average, whilst that of corn ranged from five-sixths of the average 
to nearly average. As in 1868, the deficiency of corn was much 
