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Base Exchange Properties of Nursery Soils and the Application of Potash Fertilizers

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The more complete understanding of exchange reactions arrived at in recent years has revolutionized the concept of plant feeding in many respects and has placed fertilizer practice upon a more reliable scientific foundation. In nutrition of seedlings, the exchange material acts as a storehouse in which bases are preserved in a form available to seedlings and yet not easily removable by leaching. Except for a negligible amount in the soil solution, the available potash occurs in the form of an exchangeable ion. Therefore heavy applications of potash fertilizers to soils of low base exchange capacity may result in a considerable loss by leaching, especially if heavy rains or excessive irrigation follow the application. This paper presents the relation of the exchange capacity of forest nursery soils to available potash supply and suggests the rate of application of potash fertilizers.

Document Type: Journal Article

Affiliations: University of Wisconsin

Publication date: April 1, 1940

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  • The Journal of Forestry is the most widely circulated scholarly forestry journal in the world. In print since 1902, the Journal has received several national awards for excellence. The mission of the Journal of Forestry is to advance the profession of forestry by keeping forest management professionals informed about significant developments and ideas in the many facets of forestry: economics, education and communication, entomology and pathology, fire, forest ecology, geospatial technologies, history, international forestry, measurements, policy, recreation, silviculture, social sciences, soils and hydrology, urban and community forestry, utilization and engineering, and wildlife management. The Journal is published bimonthly: January, March, May, July, September, and November.
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