Report 1918-20 with the supplement to the Guide to the Experimental Plots containing the Yields per Acre etc.
Creators: name: Rothamsted Experimental Station
Publisher: name: Lawes Agricultural Trust
Year: 1921
Subjects: subject: crop yield
subject: meteorological observations
subject: fertilizer application
subject: wheat
subject: soil
subject: crop rotation
subject: agricultural research
subject: agronomy
subject: barley
subject: fallowing
subject: farmyard manure
subject: nitrogen fertilizers
subject: rothamsted research
subject: rothamsted classical experiments
subject: broadbalk long-term experiment
subject: park grass long-term experiment
subject: rothamsted long-term experiments
subject: hoosfield alternate wheat and fallow long-term experiment
subject: exhaustion land long-term experiment
subject: broadbalk wilderness experiment
subject: geescroft wilderness experiments
subject: agdell long-term experiment
subject: barnfield clover long-term experiment
subject: stubble cleaning
subject: labour efficiency
subject: tractors
subject: entomology
subject: mycology

description: Scanned PDF of Report 1918-20 with the supplement to the Guide to the Experimental Plots containing the Yields per Acre etc.
description: Rothamsted Experimental Station Report for 1918-20 With The Supplement to the Guide to the Experimental Plots..3<br>Rothamsted Laboratories, Erected 1914-16............................................................4<br>Contents............................................................................................5<br>Rothamsted Experimental Station Staff List..........................................................6<br>Publications of Rothamsted Experimental Station.....................................................8<br>Introduction - General Account Of Rothamsted........................................................9<br>Report for the Years 1918-20 .......................................................................10<br>Expenditure On Crops................................................................................11<br>Stubble Cleaning....................................................................................13<br>Efficiency Of Labour................................................................................14<br>Value Of Tractor....................................................................................15<br>Cultivation Experiments.............................................................................16<br>Fertiliser Investigations...........................................................................17<br>Organic Matter In Soil..............................................................................19<br>Soil Population.....................................................................................21<br>Weed flora..........................................................................................23<br>Physical Conditions.................................................................................23<br>Entomological Investigations........................................................................25<br>Mycological Investigations..........................................................................26<br>War Work At Rothamsted..............................................................................27<br>Summary of Papers Published - I. Scientific Papers.................................................30<br>CROPS AND PLANT GROWTH :............................................................................30<br>Botanical Department i-vi..........................................................................30<br>Statistical Department vii..........................................................................35<br>Chemical Department - Rain viii....................................................................36<br>Chemical Department - Soil Changes ix-xiii.........................................................37<br>SOIL ORGANISMS : ...................................................................................40<br>Protozoological Department xiv-xvii.................................................................40<br>Bacteriological Department xviii, xix..............................................................43<br>Chemcial Department xxi, xxii.......................................................................45<br>ENVIRONMENTAL FACTORS : Physical Department xxiii-xxix..............................................47<br>PLANT PATHOLOGY :...................................................................................50<br>Entomological Department xx, xxx, xxxi.............................................................50<br>Mycological Department xxxii-xxxv...................................................................53<br>Summary of Papers Published - II. Technical Papers.................................................54<br>Botanical Department xxxvi, xxxvii.................................................................54<br>Experimental Plots and Pots xxxvi-lv................................................................54<br>Artificial Farmyard Manure xlix.....................................................................59<br>Partial Sterilisation lv............................................................................60<br>General Agricultural Problems lvi-lxi...............................................................61<br>Rothamsted Experimental Plots - Crop Results........................................................62<br>Notes On The Seasons................................................................................62<br>Table Of Results - The Classical Experiments........................................................66<br>Lawes Agricultural Trust, Trustees And Committee;The Incorporated Society For Extending The Rothamsted Experiments..88<br>