Adams, J.A. and Wilde, R.H.1980: Comparison of the variability in a soil taxonomic unit with that of the associated soil mapping unit. Australian Journal of Soil Research18, 285-97.
2.
Anderson, M.J. and Kneale, P.E.1980: Topography and hillslope water relationships in a catchment of low relief. Journal ofHydrology47, 115-28.
3.
Beckett, P.H.T. and Webster, R.1971: Soil variability: a review. Soils and Fertilisers34, 1-15.
4.
Bell, K.R., Blanchard, B.J., Schmugge, T.J. and Witczak, M.W.1980: Analysis of surface moisture variations within large-field sites. Water Resources Research16, 796-810.
5.
Bouma, J.1980: Field measurement of soil hydraulic properties characterizing water movement through swelling clay soil. Journal ofHydrology45, 149-58.
6.
Bouma, J., de Laat, P.J.M., Awater, R.H.C.M., van Heesen, H.C., van Holst, H.C. and van de Nes, Th. J.1980a: Use of soil survey data in a model for simulating regional soil moisture régimes. Soil Science Society America, Journal44, 808-813.
7.
Bouma, J., de Laat, P.J.M., van Holst, A.F. and van de Nes, Th. J.1980b: Predicting the effects of changing water-table levels and associated soil moisture régimes for soil survey interpretations. Soil Science Society America, Journal44,797-802.
8.
Burgess, T.M. and Webster, R.1980a: Optimal interpolation and isorithmic mapping of soil properties. I The semi-variogram and punctual kriging. Journal of Soil Science31, 315-31.
9.
1980b: Optimal interpolation and isorithmic mapping of soil properties. II Block kriging. Journal of Soil Science31, 333-41.
10.
Bums, I.G.1976: Equations to predict the leaching of nitrate uniformly incorporated to a known depth or uniformly distributed throughout a soil profile . Journal of Agricultural Science, Cambridge86, 305-13.
11.
1980b: Influence of the spatial distribution of nitrate on the uptake of N by plants: a review and a model for rooting depth. Journal of Soil Science31, 155-73.
12.
1980b: A simple model for predicting the effects of leaching of fertiliser nitrate during the growing season on the nitrogen fertiliser need of crops. Journal of Soil Science31, 175-85.
13.
1980c: A simple model for predicting the effects of winter leaching of residual nitrate on the nitrogen fertiliser need of spring crops. Journal of Soil Science31, 187-202.
14.
Cannell, R.Q., Davies, D.B. and Pidgeon, J.D.1979: The suitability of soils for sequential direct drilling of combine-harvested crops in Britain: a provisional classification . Soil Survey of England and Wales, Technical Monograph 13, 1-23.
15.
Centre for World Food Studies1980a: Summary description of Thailand agricultural model. THAM-1. Centre for World Food Studies, Research Report SOW-80-2. (36 pp.)
16.
1980 b: The model of physical crop production. Centre for World Food Studies, Research Report SOW-80-5. (31 pp.)
17.
de Smedt, F. and Wierenga, P.J.1980: A generalized solution for solute flow in soils with mobile and immobile water. Water Resources Research15, 1137-41.
18.
de Wit, C.T. and Goudriaan, J.1974: Simulation of ecological processes. Simulation Monographs, Wageningen: Pudoc.
19.
Dowdell, R.J. and Webster, C.P.1980: A lysimeter study using nitrogen-15 on the uptake of fertiliser nitrogen by perennial ryegrass swards and losses by leaching . Journal of Soil Science31, 65-75.
20.
Dudal, R.1978: Land resources for agricultural development. Transactions 11th International CongressSoil Science2, 314-40.
21.
Dumanski, J., Marshall, I.B. and Huffman, E.C.1979: Soil capability analysis for regional land use planning - a study of the Ottawa urban fringe. Canadian Journal of Soil Science59, 363-79.
22.
George, H. and Jarvis, M.G.1979: Land for camping and caravan sites, picnic sites and footpaths . Soil Survey of England and Wales, Technical Monograph 13, 166-83.
23.
Grisak, G.E. and Pickens, J.F.1980: Solute transport through fractured media. 1 The effect of matrix diffusion. Water Resources Research16, 719-30.
24.
Grisak, G.E., Pickens, J.F. and Cherry, J.A., 1980: Solute transport through fractured media. 2 Column study of fractured till. Water Resources Research16, 731-39.
25.
Harrod, T.R.1979: Soil suitability for grassland. Soil Survey of England and Wales, Technical Monograph 13, 51-70.
26.
Hauck, R.D.1972: Synthetic slow release fertilizers and fertilizer amendments . In Organic chemicals for the soil environment , New York: Marcel De Kkor.
27.
Henderson, R. and Ragg, J.M.1980: A reappraisal of soil mapping in an area of southern Scotland. II The usefulness of some morphological properties and of a discriminant analysis in distinguishing between the dominant taxa of four mapping units . Journal of Soil Science31, 573-80.
28.
Hills, R.C. and Reynolds, S.G.1969: Illustrations of soil moisture variability in selected areas and plots of different sizes. Journal ofHydrology8, 27-47.
29.
Hopkins, A. and Green, J.O.1979: Effect of soil fertility and drainage on sward changes . In Charles, A.H. and Hagger, R.J., editors, Changes in sward composition and productivity, British Grassland Society, 115-29.
30.
Hoogmoed, W.B. and Bouma, J.1980: A simulation model for predicting infiltration into cracked clay soil. Soil Science Society of America, Journal44, 458-61.
31.
Jones, R.J.A.1979: Soils of the western Midlands grouped according to ease of cultivation. Soil Survey of England and Wales , Technical Monograph 13, 24-42.
32.
Jones, R.J.A. and Tinsley, J.1980: Hill land studies in the Grampian Region of Scotland. 1 Effects of soil parent material, altitude and aspect on the herbage yields, composition and responses to fertiliser treatments in the Upper Don Basin . Journal of Soil Science31, 343-70.
33.
Lahav, N. and Tropp, D.1980: Movement of synthetic microspheres in saturated soil columns . Soil Science130, 151-56.
34.
Libardi, P.L., Reichardt, K., Nielsen, D.R. and Biggar, J.W.1980: Simple field methods for estimating soil hydraulic conductivity . Soil Science Society of America, Journal44, 3-7.
35.
Long, F.L. and Huck, M.G.1980: Nitrate movement under corn and fallow conditions . Soil Science Society of America, Journal44, 787-92.
36.
Luxmoore, R.J. and Sharma, M.L.1980: Run off responses to soil heterogeneity: experimental and simulation comparisons for two contrasting watersheds. Water Resources Research16, 675-84.
37.
Mansell, R.S. et al. 1980a: Nitrogen and water distributions in fertilized sandy soil during irrigation and drainage. Soil Science Society of America, Journal44,95-102.
38.
Mansell, R.S., Wheeler, W.B. and Calvert, D.V.1980b: Leaching losses of two nutrients and an herbicide from two sandy soils during transient drainage. Soil Science130, 140-50.
39.
Mausbach, M.J., Brasher, B.R., Yeck, R.D. and Nettleton, W.D.1980: Variability of measured properties in morphologically matched pedons. Soil Science Society America, Journal44, 358-62.
40.
McGowan, M. and Williams, J.B.1980a: The water balance of an agricultural catchment. I Estimation of evaporation from soil water records. Journal of Soil Science31, 217-30.
41.
1980b: The water balance of an agricultural catchment. II Crop evaporation: seasonal and soil factors. Journal of Soil Science31, 231-44.
42.
Meek, B.D., Owen-Bartlett, E.C., Stolzy, L.H. and Labanauskas, C.K.1980: Cotton yield and nutrient uptake in relation to water table depth. Soil Science Society America, Journal44, 301-305.
43.
Nortcliff, S.1978: Soil variability and reconnaissance soil mapping: a statistical study in Norfolk. Journal of Soil Science29, 404-18.
44.
Palmer, R.C. and Jarvis, M.G.1979: Land for winter playing fields, golf course fairways and parks. Soil Survey of England and Wales, Technical Monograph 13, 152-65.
45.
Pidgeon, J.D.1980: A comparison of the suitability of two soils for direct drilling of spring barley. Journal of Soil Science31, 581-94.
46.
Philip, J.R.1980: Field heterogeneity: some basic issues. Water Resources Research16, 443-48.
47.
Russo, D. and Bresler, E.1980: Scaling soil hydraulic properties of a heterogeneous field . Soil Science Society of America, Journal44, 681-84.
48.
Ragg, J.M. and Henderson, R.1980: A reappraisal of soil mapping in an area of southern Scotland. I The reliability of four soil mapping units and the morphological variability of their dominant taxa. Journal of Soil Science31, 559-72.
49.
Sibma, L.1977: Maximization of arable crop yield in the Netherlands. Netherlands Journal of AgriculturalScience25, 278-87.
50.
Stynes, B.A., Wallace, H.R. and Veitch, L.G.1979: A synoptic approach for crop loss assessment used to study wheat. 1 An appraisal of the physical and chemical soil properties in the study area. Australian Journal of Soil Research17, 217-25.
51.
Thompson, T.R.E.1979: Soil surveys and wildlife conservation in agricultural landscapes. Soil Survey of England and Wales, Technical Monograph 13, 184-92.
52.
Tukey, R.1942: The future of data analysis. Annals of Mathematical Statistics33, 1-67.
53.
van Keulen, H., de Wit, C.T. and Lof, H. 1976: The use of simulation models for productivity studies in arid regions. In Lange, O.L., Kappen, L. and Schulze, E.D., editors, Ecological studies. Analysis and synthesis, volume 19, Berlin: Springer-Verlag.
54.
Webster, R.1979: Exploratory and descriptive uses of multivariate analysis in soil survey. In Wrigley, N., editor, Statistical applications in the spatial sciences, London: Pion, 286-306.
55.
Wellings, S.R. and Bell, J.P.1980: Movement of water and nitrate in the unsaturated zone of the Upper Chalk nearWinchester, Hants., England. Journal of Hydrology48, 119-36.
56.
Williams, G.D.V., Joynt, M.I. and McCormick, P.A.1975: Regression analysis of Canadian Prairie crop-district cereal yields, 1961-1972, in relation to weather, soil and trend. Canadian Journal of Soil Science55, 43-53.
