36 BULLETIN 1005, U. S. DEPARTMENT OF AGRICULTURE. 
to 1,000 pounds per acre. The formula varies, but either the usual 
potato fertilizer or that applied for winter forcing is most commonly 
employed. 
Peas. — Garden peas are chiefly grown as a spring crop. Eleven 
replies to inquiries were received representing 83 acres of this crop. 
Eight growers prefer either a sandy soil or a sandy loam for peas, 
while three express a preference for a loam. As in the case of beans, 
over 70 per cent of the replies call for a warm, well-drained soil. 
Peas are marketed in bushel baskets, and the replies show a range 
in yield of 30 to 80 baskets per acre, with a normal production of 
about 50 baskets. 
Peas are also grown as an interplanted crop to a considerable extent 
and are fertilized with reference to the accompanying crop. The 
amoimts of commercial fertilizer range from 300 to 400 pounds to 
1,000 pounds per acre. 
Cucumbers.^-CMQwmhQTs are grown both as a field crop and under 
frames. (See PI. XII, figs. 1 and 2.) The methods of management 
differ very markedly in the two cases. The producers growing the 
crop under frames require a light sandy soil, and all the manuring and 
fertilizing is on an intensified scale. As much as 50 to 60 tons of 
stable manure per acre may be used for the forcing crop, together 
with heavy applications of soluble fertilizers. After the earliest 
part of the crop is harvested and all danger of frost is over, the frames 
are removed and the vines are allowed to spread, producing a later 
crop. The yields from this form of production are heavy and not at 
all comparable with those of the field crop. 
The 16 replies concerning the cucumber crop were chiefly from 
those producing the field crop. Thirteen growers, or 80 per cent, 
prefer either a sandy soil or a sandy loam for the crop. Three are in 
favor of a loam soil. 
The yields under field conditions range from 50 to 150 barrels per 
acre, with a mean of about 100 barrels. 
In practicall}^ all cases stable manure is used in considerable 
amounts. In addition commercial fertilizers are used at a rate of 
500 to 1,500 pounds per acre, with a normal application of about 
1,000 pounds. 
Sweet potatoes. — Of the 15 replies received from growers of sweet 
potatoes, 13, or 87 per cent, state a preference for a sandy soil or a 
sandy loam for this crop. 
While sweet potatoes are rather a subordinate crop in the Norfolk 
district, a considerable acreage is grown, especially at points where 
marketing facilities are not quite so favorable as to permit of the 
more intensive forms of truck growing. Usually the individual acre- 
ages within the trucking district are smaU. 
