




SOILS OF SOUTHERN NEW JERSEY AND THEIR USES. 59 
In this table the total measured area of each type, the area occu- 
pied for different purposes connected with agriculture, and the 
areas and percentages of the different classes of occupation are sum- 
marized from the detailed tables given in the presentation of the 
facts concerning each of the four areas. The same classification of 
crops is made as in the detailed tables. | 
The final classification of all soil and crop areas mapped is shown 
in the summary given in this table. 
The notable facts derived from this tabulation may be briefly 
stated. 
With respect to the soils of the sand and coarse sandy loam group, 
it is shown that truck crops are of chief importance, covering 63.6 
per cent of the total cropped area. General farm crops cover only 
24.4 per cent, while orchard and other fruit crops cover 5.8 per cent. 
Only 6.2 per cent of the group is not occupied for the growing of 
these crops. — 
In contrast, the soils of the loam and sandy loam group have only 
39.6 per cent of their area in truck crops, including Irish potatoes in . 
this class, while 47.3 per cent is in general farm crops and 6.4 per 
cent in fruit crops. The area not cropped is again small, compris- 
ing only 6.7 per cent of the total. 
The fine sandy loam group is intermediate between the two other 
groups, carrying 51.7 per cent of truck crops and 25.1 per cent of 
general farm crops, but showing 10.9 per cent of fruit crops and 
12.3 per cent of area not occupied by annual or orchard crops. 
_ The preferred uses of the different types are capable of a degree of 
mathematical approximation through a comparison of the relative 
areas of each crop and group of crops supported by the different soil 
types. Thus, for truck-crop production the Sassafras sand takes 
leading rank, with 73.6 per cent of its area occupied by such crops. 
The other soils of this group are arranged under this type in the 
order of their relative importance in truck-crop production. The 
lowest percentages of truck crops found on any soil in the group is 
53.5 per cent. It is notable that the three sandy soils in the group 
considerably outrank the two coarse sandy loams in percentage of 
truck-crop maintenance This is almost sufficient to justify a sub- 
grouping within the group. 
Within the loam and sandy loam group the highest percentages 
given to any class of truck crops is found on the Sassafras loam with 
40.6 per cent of its area given to such crops. This is almost equalled 
by the Sassafras sandy loam, with 40.1 per cent of the truck crops. 
In both of these cases the high percentage must be ascribed to the 
large areas of Irish potatoes grown upon the two types. The grow- 
ing of other truck crops than potatoes and tomatoes on either of 
these soils is negligible. 
