Abbreviated Description
of Manures.
Nitrogenous
Manures.
Mineral Manures.
E

r


II


A

^ CD


u


■as
1°


il


i

So






Lb.
Lb.
Cwt.
Lb.
Lb.
Lb.
Lb.
3
12


VUnmanured every year ....
2

1


Unmanured ; following Dung first 8 years.
Ammoninm-salts alone; with Dung also

first 8 years


200














4-1
8
7


Superphosphate of Lime ....
Mineral Manure without Potash.
Complete Mineral Manure.
3-5
3-5
3-5


500


250
100


ibo

100




6
15


As Plot 7 ; Ammonium-salts alone first 13

years

As Plot 7 ; Nitrate Soda alone first 18 years






3-5
3-5


500
500


100
100


100
100




5
17


Ammonium-salts alone (to 1897).
Nitrate of Soda alone


400


273












4-2
10

9

13

11-1

11-2


Superphosphate and Ammonium-salts

Mineral Manure (without Potash) and Am-
monium-salts

Complete Mineral Manure and Ammonium-
salts

As Plot 9, and Chaffed Wheat Straw also
to 1897

Complete Mineral Manure and Ammonium-
salts

As Plot 11-1, and Silicate of Soda


400

400

400

400

600
600




3-5

3-5

3-5

3-5

3-5
3-5


500

500

500
500


250

100

100

100
100


100

100

100

100
100


400


16
14


Compete Mineral Manure and Nitrate Soda
Complete Mineral Manure and Nitrate Soda




275
550


3-5
3-5


500
500


100
100


100
100





applied each year to the plots, and Table LVII. the average
produce over the whole period, over the last ten years, and
for the single year 1902.
152 EXPERIMENTS UPON GEASS LAND

Table LVII. — Produce of Hay per cwre. Average over the period of 4:7 years
(1856-1902), the 10 years (1893-1902), and the individual year 1902.
Rothamsted. Total of first, and second crops (if any).
Averages over


Season




Abbreviated Description






Plot.
of Manures.
47 years


10 years


1902.
(1866-1902).
(1893-1902).
Cwt.
Cwt.
Cwt.
