Report for 1931
Creators: name: Rothamsted Experimental Station
Publisher: name: Lawes Agricultural Trust
Year: 1932
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: woburn experimental farm
subject: grasslands
subject: potatoes
subject: apiculture
subject: sugarbeet
subject: viral diseases
subject: bacterial diseases
subject: fungal diseases
subject: insecticides
subject: disease surveys
subject: pest surveys
subject: disease control

description: Scanned PDF of Report for 1931
description: Rothamsted Experimental Station Report for 1931.....................................................1<br>Rothamsted Laboratories , Erected 1914-1916.........................................................2<br>Contents............................................................................................4<br>Rothamsted Experimental Station; Woburn Experimental Farm; And Imperial Bureau of Soil Staff List...6<br>Publications Of Rothamsted Experimental Station.....................................................13<br>Introduction - General Account Of Rothamsted........................................................17<br>Rothamsted Report For The Year 1931.................................................................20<br>FIELD EXPERIMENTS...................................................................................20<br>Fertilisers on Grassland............................................................................20<br>Home Grown Food For Animals.........................................................................27<br>Potatoes ...........................................................................................28<br>Barley..............................................................................................30<br>Sugar Beet .........................................................................................31<br>Experiments At Outside Centres......................................................................33<br>SOIL FERTILITY AND MECHANISATION....................................................................35<br>ELEMENTS NEEDED BY PLANTS IN SMALL QUANTITIES.......................................................38<br>METHODS FOR AGRICULTURAL SOIL SURVEY................................................................39<br>GENERAL MICROBIOLOGY................................................................................40<br>BACTERIAL NUMBERS AND SOIL FERTILITY................................................................40<br>FUNGAL NUMBERS......................................................................................41<br>VIRUS DISEASES......................................................................................42<br>BACTERIAL DISEASES..................................................................................43<br>FUNGUS DISEASES ....................................................................................44<br>INSECT PESTS........................................................................................45<br>INSECTICIDES........................................................................................46<br>BEES................................................................................................47<br>SURVEY OF FUNGUS DISEASES AT ROTHAMSTED AND WOBURN..................................................49<br>SURVEY OF INSECT PESTS AT ROTHAMSTED AND WOBURN.....................................................52<br>FIELD PLOT TECHNIQUE................................................................................57<br>ACCURACY OF FIELD EXPERIMENTS.......................................................................59<br>ROTHAMSTED FARM REPORT..............................................................................61<br>METEOROLOGICAL OBSERVATIONS.........................................................................66<br>Summaries of Papers Published In 1931 - I. Scientific Papers .......................................68<br>CROPS, PLANT GROWTH, PLANT PRODUCTS AND ACTION OF MANURES...........................................68<br>STATISTICAL METHODS AND RESULTS.....................................................................74<br>THE SOIL............................................................................................77<br>SOIL ORGANISMS......................................................................................80<br>THE PLANT IN DISEASE : CONTROL OF DISEASE...........................................................84<br>Summaries Of Papers Published in 1931 II. Technical and Other Papers ...............................89<br>GENERAL.............................................................................................89<br>CROPS, SOILS AND FERTILISERS........................................................................90<br>BIOLOGICAL..........................................................................................91<br>Woburn Experimental Farm :..........................................................................93<br>Woburn Experimental Farm Report For 1931............................................................93<br>Report by Mr H. G. Miller..........................................................................100<br>Rothamsted Experimental Plots, 1931.................................................................108<br>THE USE OF THE SUMMARY TABLES.......................................................................108<br>THE CLASSICAL EXPERIMENTS...........................................................................109<br>Errata for Rothamsted Report for 1930...............................................................127<br>CONTINUOUS ROTATION EXPERIMENTS.....................................................................129<br>OTHER EXPERIMENTS AT ROTHAMSTED.....................................................................141<br>OTHER EXPERIMENTS AT WOBURN.........................................................................160<br>EXPERIMENTS AT OUTSIDE CENTRES......................................................................166<br>Lawes Agricultural Trust; Trustees And Committee; The Incorporated Society for Extending the Rothamsted Experiments..199<br>