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Hertfordshire (England)

 Subject
Subject Source: Local sources

Found in 14 Collections and/or Records:

Amm[oni]a Salts, Rothamsted, 1870s-1930s

 Item
Identifier: Coll-1434/1420
Scope and Contents Photograph of a sample of grasses in plot 5 that have been treated with Ammonia Salts at Rothamsted in the mid 20th century.
Dates: 1870s-1930s

Full Minerals After Nitrate, Rothamsted, 1870s-1930s

 Item
Identifier: Coll-1434/3009
Scope and Contents Photograph of a plot of grasses with full minerals after nitrate at Rothamsted, [England] in the early/mid 20th century.
Dates: 1870s-1930s

Full Minerals and Ammonium Salts, Rothamsted, 1870s-1930s

 Item
Identifier: Coll-1434/3043
Scope and Contents Photograph of a plot of land in a small box that was tested with full minerals and ammonium salts at Rothamsted in England in the early 20th century.
Dates: 1870s-1930s

Full Minerals and Nitrate of Soda, Rothamsted, 1870s-1930s

 Item
Identifier: Coll-1434/3042
Scope and Contents Photograph of a plot of land in a small box that was tested with full minerals and nitrate of soda at Rothamsted in England in the early 20th century.
Dates: 1870s-1930s

Growth of Wheat at Rothamsted, 13 Years, With Increasing Amounts of Nitrogenous Manure, 1870s-1930s

 Item
Identifier: Coll-1434/3008
Scope and Contents Graph illustrating the growth of wheat at Rothamsted over a period of 13 years with increasing amounts of nitrogenous manure from the early/mid 20th century.
Dates: 1870s-1930s

Nitrogen Manure - Growth of Wheat, 1870s-1930s

 Item
Identifier: Coll-1434/1371
Scope and Contents Image of a table showing the development of the growth of wheat in nitrogen manure at Rothamsted in 1903.
Dates: 1870s-1930s

Plant Food in Soil, Broadback Field, Rothamsted, 1870s-1930s

 Item
Identifier: Coll-1434/2956
Scope and Contents Informational graph on the total available plant food in soil compared with that removed in wheat crop at Broadback Field, Rothamsted, [England] in the early/mid 20th century.
Dates: 1870s-1930s

Rothamsted [Experimental Station], [Harpenden, Hertfordshire, England], 1870s-1930s

 Item
Identifier: Coll-1434/3046
Scope and Contents Photograph of the buildings of Rothamsted [Experimental Station], [Harpenden, Hertfordshire, England] in the early 20th century.
Dates: 1870s-1930s

Table IX - Sulphuric Acid and Chlorine in Rain-water collected at Rothamsted, 1870s-1930s

 Item
Identifier: Coll-1434/1362
Scope and Contents Image of a table summarizing the measurements of sulphuric acid and chlorine in rain-water that was collected at Rothamsted between 1881 and 1887.
Dates: 1870s-1930s

Table VII - Nitrogen and Chlorine in Rothamsted Rain, Monthly Averages, 15 Years (1889-1903), 1870s-1930s

 Item
Identifier: Coll-1434/3044
Scope and Contents Table of information on the amount of nitrogen and chlorine in Rothamsted Station's rain by monthly averages over a 15 year period from 1889 to 1903.
Dates: 1870s-1930s