376 SOILS AND AGRICULTURE OF NORFOLK. 
1. Chalky marl in the north. 
2. „ clay „ south. 
3. ,, Kimridgian clay in Suffolk. 
The analyses in Tables X. — XIIT. show very well the 
differences in the classes. 
Weasenham, Field Dalling, and Little Snoring are all from 
the “ chalky marl ” area, containing about 8 per cent, of 
clay and 1 to 2 per cent, chalk, and may be considered as 
being typical examples of barley soils, barley being the most 
important crop in the district. , 
The Wood Dalling and Hindolvestone samples are from a 
small patch of a much heavier soil with a fairly high clay 
percentage and only about 5 per cent, of chalk. Some 30 
years ago chalk was dug out and applied to some of the land 
which still shows the effect of the dressing. Some old 
varities of wheat, “ Golden Drop ” and Browick, are still 
cultivated in this area, and good crops are grown of these 
once generally known varieties. 
Table XIII. 
Chemical analysis of some South Norfolk Boulder Clay 
Soils 
Woodton. 
Attleborough. 
Saliam Toney. 
Bressingliam. 
Pulham Mkt. 
Ravenliam. 
Moisture 
1-41 
2-4 
2-15 
1-7 
1-85 
3-08 
Organic and loss on 
ignition 
4*15 
71 
45 
5-48 
4-85 
6-62 
Nitrogen 
T34 
•21 
T55 
T5 
T57 
•2016 
Potash 
•378 
■4112 
•294 
•469 
•384 
•592 
Phosphrs. pentoxide 
T15 
T2 
T34 
T28 
T02 
T34 
Calcium and mag- 
nesium carbonates 
•54 
324 
IT 
4-0 
.32 
434 
Insoluble residues . . 
86-55 
78-57 
86-5 
81T 
85T7 
75-4 
