. Bulletin. Agriculture -- New Hampshire. April, 1931] Agricultural Research in N. H., 1930 13 Lancaster Lettuce Started Well The experiment to determine whether "Iceberg" lettuce can be suc- cessfully grown on a commercial scale in the White Mountain area of New Hampshire met with auspicious results early in the season of 1930; but an unusual spell of sunless weather coupled with a flooded market changed the story. The first shipments of lettuce from Lancaster, where ten acres were grown experimentally by the Station, under the charge of R. B. Dearborn, were of fine quality heads, s
. Bulletin. Agriculture -- New Hampshire. April, 1931] Agricultural Research in N. H., 1930 13 Lancaster Lettuce Started Well The experiment to determine whether "Iceberg" lettuce can be suc- cessfully grown on a commercial scale in the White Mountain area of New Hampshire met with auspicious results early in the season of 1930; but an unusual spell of sunless weather coupled with a flooded market changed the story. The first shipments of lettuce from Lancaster, where ten acres were grown experimentally by the Station, under the charge of R. B. Dearborn, were of fine quality heads, solid and free of dirt. Prices were comparable with those for western "Iceberg". One wholesale distributor purchased a lot of lettuce and placed it in his storage along with some western. After five days had elapsed, he checked on the lettuce from the two sources and stated, "That from New Hampshire held up equally as well as the western and the flavor was ; Subsequent shipments declined in solidi- ty; and also in quality, due to wet cloudy weather. Until further trials have been made, the Station is not ready to recommend com- mercial culture of the crop; but on the other hand, is not yet / ready to abandon the proj ect. Effect of Temperature on Seed Stalk Formation. Greenhouse studies with let- tuce prior to the outdoor ex- periment reported above in- dicated that the growth of seed stalks is directly pro- portional to the amount of heat. Fertilizer studies with Lancaster soil under green- house conditions showed marked results from the use of acid phosphate in promoting growth. A combination of medium nitrogen and high phosphorus gave best re- turns, and in the commercial plantation a 5-8-2 fertilizer was used. {Purnell Fund) Soil Fertility Studies The Station's long-time soil fertility experiments, involving 461 plots on five different areas in the state, are building up a body of evidence as to varying treatments, particularly on run-out soils. In
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