A study in sampling technique: the effect of artificial fertilisers on the yield of potatoes
A - Papers appearing in refereed journals
Wishart, J. and Clapham, A. R. 1929. A study in sampling technique: the effect of artificial fertilisers on the yield of potatoes. The Journal of Agricultural Science. 19 (4), pp. 600-618. https://doi.org/10.1017/S0021859600013332
| Authors | Wishart, J. and Clapham, A. R. |
|---|---|
| Abstract | (1) The desiderata of a sampling-method are outlined, and the particular case of sampling a large number of potato plots discussed.(2) An analysis is made of the yields of 54 sub-plots of the Rothamsted Potato Experiment of 1928, both as estimated by a sampling-method and as determined by large-scale lifting.(3) It is shown that most of the significant results of the experiment are obtained from the sample-yields, but that the higher standard error per plot obscures the effect of superphosphate.(4) It is concluded that at Rothamsted 102, and at Woburn 56, plants would have to be lifted to give a sampling-error as small as 4 per cent. It would then be profitable only to sample experimental plots of 1/20th acre or more in area.Finally it is a pleasure to record our indebtedness to Dr R. A. Fisher for much valuable advice and criticism: and to Mr H. J. G. Hines for assistance with the field work. |
| Year of Publication | 1929 |
| Journal | The Journal of Agricultural Science |
| Journal citation | 19 (4), pp. 600-618 |
| Digital Object Identifier (DOI) | https://doi.org/10.1017/S0021859600013332 |
| Open access | Published as non-open access |
| Funder | Rothamsted Research |
| Output status | Published |
| Publisher | Cambridge University Press (CUP) |
| ISSN | 0021-8596 |
Related outputs
Principles and practice of field experimentation
E - Books edited/written by staff member, alone/with others
Wishart, J. and Sanders, H. G. 1955. Principles and practice of field experimentation. Cambridge CAB International (CABI).
Field trials II: the analysis of covariance
E - Books edited/written by staff member, alone/with others
Wishart, J. 1950. Field trials II: the analysis of covariance. Cambridge CAB International (CABI).
Field trials: their lay-out and statistical analysis
E - Books edited/written by staff member, alone/with others
Wishart, J. 1940. Field trials: their lay-out and statistical analysis. Cambridge CAB International (CABI).
Crop estimation and its relation to agricultural meteorology
A - Papers appearing in refereed journals
Irwin, J. O., Wishart, J. and Cochran, W. G. 1938. Crop estimation and its relation to agricultural meteorology. Supplement to the Journal of the Royal Statistical Society. 5 (1), pp. 1-45. https://doi.org/10.2307/2983579
Principles and practice of field experimentation
E - Books edited/written by staff member, alone/with others
Wishart, J. and Sanders, H. G. 1935. Principles and practice of field experimentation. London Empire Cotton Growing Association.
The Technique of Field Experiments Rothamsted conferences on present day problems on crop production being the report of a conference held at Rothamsted on XX 1932 Rothamsted Conference RC No 13
E - Books edited/written by staff member, alone/with others
Russell, E. J., Fisher, R. A., Wishart, J., Stapledon, R. G., Armstrong, S. F., Lewis, A. H., Manson, A.D., Procter, J., Hoblyn, T. N., Garner, H. V., Watson, D. J. and Carroll, T. H. J. Russell, E. W. (ed.) 1932. The Technique of Field Experiments Rothamsted conferences on present day problems on crop production being the report of a conference held at Rothamsted on XX 1932 Rothamsted Conference RC No 13 . Harpenden Rothamsted Research.
On the secular variation of rainfall at Rothamsted
A - Papers appearing in refereed journals
Wishart, J. 1932. On the secular variation of rainfall at Rothamsted. Quarterly Journal of the Royal Meteorological Society. 58 (247), pp. 468-469. https://doi.org/10.1002/qj.49705824709
The derivation of the pattern formulae of two-way partitions from those of simpler patterns
A - Papers appearing in refereed journals
Fisher, R. A. and Wishart, J. 1932. The derivation of the pattern formulae of two-way partitions from those of simpler patterns. Proceedings Of The London Mathematical Society. s2-33 (1), pp. 195-208. https://doi.org/10.1112/plms/s2-33.1.195
The analysis of variance illustrated in its application to a complex agricultural experiment on sugar beet
A - Papers appearing in refereed journals
Wishart, J. 1931. The analysis of variance illustrated in its application to a complex agricultural experiment on sugar beet. Archiv für Pflanzenbau. 5, pp. 561-573.
Notes on frequency-constants
A - Papers appearing in refereed journals
Wishart, J. 1931. Notes on frequency-constants. Journal of the Institute of Actuaries. 62 (1), pp. 174-177. https://doi.org/10.1017/S0020268100009951
The mean and second moment coefficient of the multiple correlation coefficient, in samples from a normal population
A - Papers appearing in refereed journals
Wishart, J., Kondo, T. and Elderton, E. M. 1931. The mean and second moment coefficient of the multiple correlation coefficient, in samples from a normal population. Biometrika. 22 (3/4), pp. 353-376. https://doi.org/10.2307/2332101
Studies in Crop Variation VII. The Influence of Rainfall on the Yield of Barley at Rothamsted
A - Papers appearing in refereed journals
Wishart, J. and Mackenzie, W. A. 1930. Studies in Crop Variation VII. The Influence of Rainfall on the Yield of Barley at Rothamsted. The Journal of Agricultural Science. 20 (3), pp. 417-439. https://doi.org/10.1017/S0021859600006948
On the secular variation of rainfall at Rothamsted
A - Papers appearing in refereed journals
Wishart, J. 1930. On the secular variation of rainfall at Rothamsted. Memoirs of the Royal Meteorological Society. 3 (27), pp. 127-137.
VII.—The correlation between product moments of any order in samples from a normal population
A - Papers appearing in refereed journals
Wishart, J. 1930. VII.—The correlation between product moments of any order in samples from a normal population. Proceedings of the Royal Society of Edinburgh. 49, pp. 78-90. https://doi.org/10.1017/S0370164600026304
Studies in crop variation VII. The influence of rainfall on the yield of barley at Rothamsted
A - Papers appearing in refereed journals
Wishart, J. and Mackenzie, W. A. 1930. Studies in crop variation VII. The influence of rainfall on the yield of barley at Rothamsted. The Journal of Agricultural Science. 20 (3), pp. 417-439. https://doi.org/10.1017/S0021859600006948
A method of estimating the yield of a missing plot in field experimental work
A - Papers appearing in refereed journals
Allan, F. E. and Wishart, J. 1930. A method of estimating the yield of a missing plot in field experimental work. The Journal of Agricultural Science. 20 (3), pp. 399-406. https://doi.org/10.1017/S0021859600006912
The derivation of certain high order sampling product moments from a normal population
A - Papers appearing in refereed journals
Wishart, J. 1930. The derivation of certain high order sampling product moments from a normal population. Biometrika. 22 (1/2), pp. 224-238. https://doi.org/10.2307/2332072
The arrangement of field experiments and the statistical reduction of the results
G - Articles in popular magazines and other technical publications
Fisher, R. A. and Wishart, J. 1930. The arrangement of field experiments and the statistical reduction of the results. https://doi.org/10.23637/rothamsted.8v20y
Fertilizer trials in 1929
D1 - Technical reports: non-confidential
Garner, H. V. and Wishart, J. 1929. Fertilizer trials in 1929.
A problem in combinatorial analysis giving the distribution of certain moment statistics
A - Papers appearing in refereed journals
Wishart, J. 1929. A problem in combinatorial analysis giving the distribution of certain moment statistics. Proceedings Of The London Mathematical Society. s2-29 (1), pp. 309-321. https://doi.org/10.1112/plms/s2-29.1.309
Fertilizer trials on the ordinary farm
A - Papers appearing in refereed journals
Wishart, J. and Hines, H. J. G. 1929. Fertilizer trials on the ordinary farm. Journal of the Ministry of Agriculture. 36 (6), pp. 524-532.
The exact treatment of the multiple correlation coefficient in meteorology and agriculture
C1 - Edited contributions to conferences/learned societies
Wishart, J. 1928. The exact treatment of the multiple correlation coefficient in meteorology and agriculture. Proceedings of the Congress of the French Association of the Advancement of Science 1928.
On errors in the multiple correlation coefficient due to random sampling
A - Papers appearing in refereed journals
Wishart, J. 1928. On errors in the multiple correlation coefficient due to random sampling. Memoirs of the Royal Meteorological Society. 2, pp. 29-38.
Table of significant values of the multiple correlation coefficient
A - Papers appearing in refereed journals
Wishart, J. 1928. Table of significant values of the multiple correlation coefficient. Quarterly Journal of the Royal Meteorological Society. IJV (227), pp. 258-259.
Sampling errors in the theory of two factors
A - Papers appearing in refereed journals
Wishart, J. 1928. Sampling errors in the theory of two factors. British Journal of Psychology. 19 (2), pp. 180-187. https://doi.org/10.1111/j.2044-8295.1928.tb00508.x
The generalised product moment distribution in samples from a normal multivariate population
A - Papers appearing in refereed journals
Wishart, J. 1928. The generalised product moment distribution in samples from a normal multivariate population. Biometrika. 20A (1/2), pp. 32-52. https://doi.org/10.2307/2331939
On the distribution of the error of an interpolated value, and on the construction of tables
A - Papers appearing in refereed journals
Fisher, R. A. and Wishart, J. 1927. On the distribution of the error of an interpolated value, and on the construction of tables. Mathematical Proceedings Of The Cambridge Philosophical Society. 23 (8), pp. 912-921. https://doi.org/10.1017/S0305004100013785
Permalink - https://repository.rothamsted.ac.uk/item/8w439/a-study-in-sampling-technique-the-effect-of-artificial-fertilisers-on-the-yield-of-potatoes