Water balance calculations were conducted for data obtained from a soil moisture characteristic to demonstrate the effect of different subsurface drain depths on the extent of droughtiness of a sandy soil. / Laboratory experiments were conducted on samples of sandy soils of the St. Lawrence lowlands to determine pertinent physical and soil-water properties. These properties were used, together with published crop data, to determine the effect of different subsurface drain depths on the quantity of available water in the soils studied. / Empirical relationships were derived among some of the properties measured, with the objective of enabling future drainage planners to make preliminary assessments of the likelihood of the occurrence of excessive drainage in a particular soil. / Based on information gained from this study, subsurface drainage-problem cases, representing conditions similar to those existing in the fields studied, were analysed and designs or design improvements were suggested for minimising the problem exemplified in each case.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.68582 |
| Date | January 1981 |
| Creators | Rashid-Noah, Augustine Bundu. |
| Publisher | McGill University |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Language | English |
| Detected Language | English |
| Type | Electronic Thesis or Dissertation |
| Format | application/pdf |
| Coverage | Doctor of Philosophy (Department of Agricultural Engineering) |
| Rights | All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. |
| Relation | alephsysno: 000594690, proquestno: AAINK52099, Theses scanned by UMI/ProQuest. |
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