Sir Bernard Augustus Keen

NameSir Bernard Augustus Keen
Job titleSoil scientist, former Head of Soil Physics and Deputy Director
Preferred citationKeen, B. A.
TitleKeen, B. A.

Research outputs

A quantitative relation between soil and the soil solution brought out by freezing-point determinations

Keen, B. A. 1919. A quantitative relation between soil and the soil solution brought out by freezing-point determinations. The Journal of Agricultural Science. 9 (4), pp. 400-415.

The evaporation of water from soil

Keen, B. A. 1914. The evaporation of water from soil. The Journal of Agricultural Science. 6 (4), pp. 456-475.

Dr. Löwy's theory of ground-water accumulation

Keen, B. A. 1946. Dr. Löwy's theory of ground-water accumulation. The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science . 37 (270), pp. 502-504.

Daily and seasonal changes in the surface temperature of fallow soil at Rothamsted

Penman, H. L. and Keen, B. A. 1943. Daily and seasonal changes in the surface temperature of fallow soil at Rothamsted. Quarterly Journal of the Royal Meteorological Society. 69 (298), pp. 1-13.

Soil physics: Theory and practice

Keen, B. A. 1942. Soil physics: Theory and practice. Journal of the Royal Society of Arts. 90 (4618), pp. 545-579.

Hoeing

Keen, B. A. 1942. Hoeing. Journal of the Royal Horticultural Society. 67, pp. 323-328.

The efficiency of pneumatic tyred tractors under farm conditions

Russell, E. W., Hine, H. J. and Keen, B. A. 1942. The efficiency of pneumatic tyred tractors under farm conditions. The Journal of Agricultural Science. 32 (1), pp. 1-42.

Dry farming in India [Book Review]

Keen, B. A. 1945. Dry farming in India [Book Review]. Nature. 155 (3940), pp. 529-530.

Weather and crops

Keen, B. A. 1940. Weather and crops. Quarterly Journal of the Royal Meteorological Society. 66 (285), pp. 155-166.

Meteorological and soil factors affecting evaporation from fallow soil

Penman, H. L. and Keen, B. A. 1940. Meteorological and soil factors affecting evaporation from fallow soil. Quarterly Journal of the Royal Meteorological Society. 66 (287), pp. 401-410.

What happens to the rain?

Keen, B. A. 1939. What happens to the rain? Quarterly Journal of the Royal Meteorological Society. 65 (280), pp. 123-138.

Are cultivations overdone?

Keen, B. A. 1938. Are cultivations overdone? Journal of the Ministry of Agriculture. 45, pp. 645-652.

Rothamsted Conference RC No 21 : The Use of Electricity in Agriculture

Russell, E. J., Haryey, M. M., Keen, B. A., Cashen, G. H., Rowland, F. E. and Cameron Brown, C. A. 1937. Rothamsted Conference RC No 21 : The Use of Electricity in Agriculture. Rothamsted Research.

The scientific basis of the art of cultivation

Keen, B. A. 1937. The scientific basis of the art of cultivation. Conference Mechanical Farming, Oxford. 2.

Are cultivation standards wastefully high?

Keen, B. A. and Russell, E. W. 1937. Are cultivation standards wastefully high? Journal of the Royal Agricultural Society of England. 98, pp. 53-60.

Some aspects of cultivation and other power operations on the farm

Keen, B. A. and Cashen, G. H. 1936. Some aspects of cultivation and other power operations on the farm. Journal and Transactions of the Society of Engineers. 27, pp. 114-128.

Land drainage: the area of benefit

Keen, B. A. 1936. Land drainage: the area of benefit. Journal of the Ministry of Agriculture. 43, pp. 521-526.

The circulation of water in the soil between the surface and the level of underground water

Keen, B. A. 1936. The circulation of water in the soil between the surface and the level of underground water. Bulletin of the International Association of Scientific Hydrology. 22, pp. 328-331.

The functions of mechanical power in soil cultivation

Keen, B. A. 1934. The functions of mechanical power in soil cultivation. Proceedings of the Institution of Automobile Engineers. 29 (1), pp. 179-194.

The contribution of Rothamsted to Soil Physics

Keen, B. A. 1934. The contribution of Rothamsted to Soil Physics. Rothamsted Research Annual Report. 1934, pp. 35-48.

Rothamsted Conference RC No 14 : Mechanization and British Agriculture

Vicount Lymington, Russell, E. J., Greig, R., Newman, J. E., Watson, J. A. S., Nevile, G. H., Orin, C. S., Brown, A. H., Wolton, E. D., Dudley, R., Keen, B. A. and Miller, H. G. 1933. Rothamsted Conference RC No 14 : Mechanization and British Agriculture. Rothamsted Research.

Experimental methods for the study of soil cultivation

Keen, B. A. 1933. Experimental methods for the study of soil cultivation. Empire Journal of Experimental Agriculture. 1, pp. 97-102.

Studies in Soil cultivation. VI. The physical effect of sheep folding on the soil ((With five text-figures)

Keen, B. A. and Cashen, G. H. 1932. Studies in Soil cultivation. VI. The physical effect of sheep folding on the soil ((With five text-figures). The Journal of Agricultural Science. 22 (1), pp. 126-134.

Formation of streamers in sedimentation

Keen, B. A. and Schofield, R. K. 1930. Formation of streamers in sedimentation. Nature. 126 (3168), pp. 93-94.

“Single Value” Soil Properties. A Study of the Significance of Certain Soil Constants. IV. A Further Note on the Technique of the “Box” Experiment

Keen, B. A. 1930. “Single Value” Soil Properties. A Study of the Significance of Certain Soil Constants. IV. A Further Note on the Technique of the “Box” Experiment . The Journal of Agricultural Science. 20 (3), pp. 414-416.

Studies in soil cultivation. V. Rotary cultivation

Keen, B. A. and Staff of the Soil Physics Department 1930. Studies in soil cultivation. V. Rotary cultivation. The Journal of Agricultural Science. 20 (3), pp. 364-389.

Can cultivation costs be reduced?

Keen, B. A. 1929. Can cultivation costs be reduced? Essex County Farmers' Union Yearbook. 1929, pp. 1-7.

“Single value” soil properties: a study of the significance of certain soil constants

Keen, B. A. and Coutts, J. R. H. 1930. “Single value” soil properties: a study of the significance of certain soil constants. The Journal of Agricultural Science. 18 (4), pp. 740-765.

Some comments on the hydrometer method for studying soils

Keen, B. A. 1928. Some comments on the hydrometer method for studying soils. Soil Science. 26 (4), pp. 261-264.

Revised official British method for mechanical analysis

Sub-Committee of the Agricultural Education Association and Keen, B. A. 1928. Revised official British method for mechanical analysis. The Journal of Agricultural Science. 18, pp. 734-739.

The use of the tractor on the average farm

Keen, B. A. 1928. The use of the tractor on the average farm. Essex County Farmers' Union Yearbook.

First Commission: Soil mechanics and physics

Keen, B. A. 1928. First Commission: Soil mechanics and physics. Soil Science. 25 (1), pp. 9-22.

The place of the tractor in soil cultivation

Keen, B. A. 1927. The place of the tractor in soil cultivation. Proceedings of the Institution of Automobile Engineers. 21 (2), pp. 242-274.

The limited role of capillarity in supplying water to plant roots

Keen, B. A. 1927. The limited role of capillarity in supplying water to plant roots. International congress of soil science. 1, pp. 504-512.

A new dynamometer for all types of horse and power drawn implements

Haines, W. B. and Keen, B. A. 1927. A new dynamometer for all types of horse and power drawn implements. International congress of soil science. 1.

the value of the dynamometer in cultivation experiments

Keen, B. A. 1927. the value of the dynamometer in cultivation experiments. International congress of soil science. 1.

Some physical and physico-chemical effects of soil organic matter

Keen, B. A. 1927. Some physical and physico-chemical effects of soil organic matter. Journal of the American Society of Agronomy. 19 (5), pp. 362-368.

The American agricultural research and advisory system

Keen, B. A. 1927. The American agricultural research and advisory system. Proceedings of the First International Congress for Soil Science.

The history and development of the use of superphosphate

Keen, B. A. 1926. The history and development of the use of superphosphate. International conference on superphosphate manufacturing.

Soil management

Keen, B. A. 1926. Soil management. Essex County Farmers' Union Yearbook.

Soil physics and its bearing on practice

Keen, B. A. 1926. Soil physics and its bearing on practice. Scottish Journal Of Agriculture.

The evaporation of water from soil: III. A critical study of the Technique

Keen, B. A., Crowther, E. M. and Coutts, J. R. H. 1926. The evaporation of water from soil: III. A critical study of the Technique. The Journal of Agricultural Science. 16 (1), pp. 105-122.

The mechanical analysis of soils. A report on the present position and recommendations for a new official method

A Sub-Committee of the Agricultural Education Association and Keen, B. A. 1926. The mechanical analysis of soils. A report on the present position and recommendations for a new official method. The Journal of Agricultural Science. 16 (1), pp. 123-144.

The border-line between meteorology and soil physics

Keen, B. A. 1925. The border-line between meteorology and soil physics. The Meteorological Magazine. pp. 1-7.

Studies in soil cultivation. III. Measurements on the Rothamsted classical plots by means of dynamometer and plough

Haines, W. B. and Keen, B. A. 1925. Studies in soil cultivation. III. Measurements on the Rothamsted classical plots by means of dynamometer and plough. The Journal of Agricultural Science. 15 (3), pp. 395-406.

Studies in soil cultivation. II. A test of soil uniformity by means of dynamometer and plough

Haines, W. B. and Keen, B. A. 1925. Studies in soil cultivation. II. A test of soil uniformity by means of dynamometer and plough. The Journal of Agricultural Science. 15 (3), pp. 387-394.

Studies in soil cultivation. I. The evolution of a reliable dynamometer technique for use in soil cultivation experiments

Keen, B. A. and Haines, W. B. 1925. Studies in soil cultivation. I. The evolution of a reliable dynamometer technique for use in soil cultivation experiments. The Journal of Agricultural Science. 15 (3), pp. 375-386.

The dispersion of soil in water under various conditions

Puri, A. N. and Keen, B. A. 1925. The dispersion of soil in water under various conditions. The Journal of Agricultural Science. 15 (2), pp. 147-161.

The physicisit in agriculture with special reference to soil problems

Keen, B. A. 1925. The physicisit in agriculture with special reference to soil problems. Lecture to the Institute of Physics. pp. 27-63.

Recent work at Rothamsted Experiment Station

Keen, B. A. 1925. Recent work at Rothamsted Experiment Station. Essex County Farmers' Union Yearbook.

The use of the dynamometer in soil cultivation studies and implement trials

Keen, B. A. 1925. The use of the dynamometer in soil cultivation studies and implement trials. Journal of the Royal Agricultural Society of England. 86, pp. 30-43.

The relation between the vapour pressure and water content of soils

Puri, A. N., Crowther, E. M. and Keen, B. A. 1925. The relation between the vapour pressure and water content of soils. The Journal of Agricultural Science. 15 (1), pp. 68-88.

An automatic and continuous recording balance. (The Oden-Keen balance)

Coutts, J. R. H., Crowther, E. M., Keen, B. A. and Oden, S. 1924. An automatic and continuous recording balance. (The Oden-Keen balance). Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences. 106 (735), pp. 33-51.

On the moisture relationships in an ideal soil

Keen, B. A. 1924. On the moisture relationships in an ideal soil. The Journal of Agricultural Science. 14 (2), pp. 170-177.

On the effect of wear on small mesh wire sieves

Keen, B. A. and Haines, W. B. 1923. On the effect of wear on small mesh wire sieves. The Journal of Agricultural Science. 13 (4), pp. 467-482.

Section II.—Papers and discussion on “soil moisture”. The system soil-soil moisture

Keen, B. A. 1922. Section II.—Papers and discussion on “soil moisture”. The system soil-soil moisture. Transactions of the Faraday Society. 17, pp. 228-243.

The relation between the clay content of certain physical properties of a soil

Keen, B. A. and Rackowski, H. 1921. The relation between the clay content of certain physical properties of a soil. The Journal of Agricultural Science. 11 (4), pp. 441-449.

The evaporation of water from soil. II.: Influence of soil type and manurial treatment

Keen, B. A. 1921. The evaporation of water from soil. II.: Influence of soil type and manurial treatment. The Journal of Agricultural Science. 11 (4), pp. 432-440.

The factors determining soil temperature

Keen, B. A. and Russell, E. J. 1921. The factors determining soil temperature. The Journal of Agricultural Science. 11 (3), pp. 211-239.

The relations existing between the soil and its water content: A Résumé of the Subject

Keen, B. A. 1920. The relations existing between the soil and its water content: A Résumé of the Subject. The Journal of Agricultural Science. 10 (1), pp. 44-71.

A note on the capillary rise of water in soils

Keen, B. A. 1919. A note on the capillary rise of water in soils. The Journal of Agricultural Science. 9 (4), pp. 396-399.

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