eRA e-RAdoc: Digited Documents from the Rothamsted Long-term Experiments

Fertiliser Investigations

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Report 1921-22 with the supplement to the Guide to the Experimental Plots containing the Yields per Acre etc.

Report 1921-22 With the Supplement to the Guide to the Experimental Plots Containing the Yields per Acre Etc. -1
Rothamsted Experimental Station Report for 1921-22 With the Supplement to the Guide to the Experimental Plots1
Rothamsted Laboratories, Erected 1914-162
Rothamsted Experimental Station and Woburn Experimental Farm Staff List4
Publications of the Rothamsted Experimental Station8
Introduction - General Account of Rothamsted10
Report for the Years 1921, 1922 11
Soil Cultivation11
Soil Acidity13
The Feeding of the Planet14
Fertiliser Investigations16
Effect of Manures on Crop Composition and Quality20
Quantity of Fertiliser and Crop Composition and Quality22
Soil Population and Plant Foods22
Control of Soil Population23
The Plant Disease 24
The Associated Farms : Woburn Farm and Leadon Court Farm26
Apicultural Investigations 26
Summary of Papers Published - I. Scientific Papers29
Crops and Plant Growth : Botanical Department29
Statistical Methods and Results : Statistical Department33
Soil Organisms 36
Environmental Factors 40
Plant Pathology 42
Summary of Papers Published - II. Technical Papers49
Crops and Crop Production49
Organic Manures 50
Rothamsted Experimental Plots 55
Notes on the Seasons55
Expenditure and Cash Returns59
Costs of Ploughing60
Woburn Experimental Farm Report 1921-192261
Table of Results - the Classical Experiments77
Table of Results - Later Experiments90
Outside Centres : Malting Barley104
Lawes Agricultural Trust, Trustees and Committee; the Incorporated Society for Extending the Rothamsted Experiments105

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