Accumulation of sodium in soil is a serious problem in arid and semi-arid regions of the world. Millions of acres of once fertile land have been thrown out of cultivation and-millions more are being added every year. The magnitude of the problem can be visualized from the fact that in Alberta alone 10 million acres are either seriously or partially affected by excess salinity and/or exchangeable sodium. In West Pakistan 100,000 acres go out of cultivation annually because of this menace and in the United States, out of 300 million acres under irrigation, between 25 and 30 percent are affected to varying degrees. [...]
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:QMM.117560 |
| Date | January 1965 |
| Creators | Chaudhry, Ghulam Haider. |
| Contributors | Warkentin, B. (Supervisor), Carter, A. L., MacKenzie, A. F. |
| 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 Soil Science. ) |
| Rights | All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. |
| Relation | alephsysno: NNNNNNNNN, Theses scanned by McGill Library. |
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