References
- Gradwell , M. W. 1968 . The moisture-holding properties of Waikato soils and methods of their determination . New Zealand journal of agricultural research , 11 : 631 – 654 .
- Gradwell , M. W. 1974 . The available-water capacities of some southern and central zonal soils of New Zealand . New Zealand journal of agricultural research , 17 : 465 – 478 .
- Gradwell , M. W. 1979 . Subsoil hydraulic conductivities of major New Zealand soil groups at water contents near field capacity . New Zealand journal of agricultural research , 22 : 603 – 614 .
- Gradwell , M. W. and Birrell , K. S. 1979 . “ Soil Bureau laboratory methods. C. Methods for physical analysis of soils ” . In New Zealand Soil Bureau scientific report 10C
- Greacen , E. L. and Hignett , C. T. 1976 . “ A water balance model and supply index for wheat in South Australia ” . In CSIRO Division of Soils technical paper 27 33
- Maclean , A. H. and Yager , T. U. 1972 . Available-water capacities of Zambian soils in relation to pressure plate measurements and particle size analysis . Soil science , 113 : 23 – 29 .
- Miller , D. E. 1969 . “ Flow and retention of water in layered soils ” . In United States Department of Agriculture, Agricultural ResearchService, Conservation research report number 13 28
- Pidgeon , J. D. 1972 . The measurement and prediction of available water capacity of ferrallitic soils in Uganda . Journal of soil science , 23 : 431 – 441 .
- Piper , C. S. 1944 . Soil and plant analysis , 368 The University of Adelaide .
- Reeve , M. J. , Smith , P. D. and Thomasson , A. J. 1973 . The effect of density on water retention properties of field soils . Journal ofsoil science , 24 : 355 – 367 .
- Richards , L. A. and Moore , D. C. 1952 . Influence of capillary conductivity and depth of wetting on moisture retention in soil . Transactions of the American Geophysical Union , 33 : 531 – 540 .
- Webster , R. and Beckett , P. H. T. 1972 . Matric suctions to which soils in south central England drain . Journal of agricultural science, Cambridge , 78 : 379 – 387 .