References
- Aitchison , G. D. 1953 . Simplified Measurements of Soil Temperature and of Soil Moisture . Aust. J. appl. Sci. , 4 : 418 – 426 .
- Aitchison , G. D. , Butler , P. F. and Gurr , C. G. 1951 . Techniques Associated with the use of Gypsum Block Soil Moisture Meters . Ibid. , 2 : 56 – 75 .
- Bouyoucos , G. J. and Mick , A. H. 1940 . An Electrical Resistance Method for the Continuous Measurement of Soil Moisture Under Field Conditions . Mich. agric. Exp. Sta. Tech. Bull. 172 ,
- Colman , E. A. 1950 . “ Manual of Instructions for use of the Fibreglass Soil-Moisture Instrument ” . In Calif. For. Range Exp. St.
- Colman , E. A. and Hendrix , T. M. 1949 . The Fibreglass Electrical Soil Moisture Instrument . Soil Sci. , 67 (6) : 425 – 438 .
- Grange , L. I. 1929 . A Classification of Soils of Rotorua County . N.Z. J. Sci. Tech. , 11 : 219 – 228 .
- Grange , L. I. 1931 . Volcanic Ash Showers . Ibid , 12 : 228 – 240 .
- N.Z. Soil Bureau . 1954 . General Survey of the Soils of North Island, New Zealand . N.Z. Soil Bur. Bull. n.s. 5. ,