Effects of Different Sources of Fertilizer Nitrogen on Growth and Nutrition of

M. A. Radwan, Dean S. Debell

ISBN 10: 1390023788 / ISBN 13: 9781390023787

Published by Forgotten Books, 2024

About this Item

Print on Demand. This book examines the impact of using fertilizers of varying nitrogen sources on the growth and sustenance of young Western Hemlock trees, a species of increasing importance to the lumber industry in the Pacific Northwest. Conducted by the United States Department of Agriculture Forest Service, the study examined twelve different fertilizers' effects on plant growth over eight months, with a focus on nitrogen as a key growth element. The author notes that despite previous assumptions, there appears to be little difference in response based on which source of nitrogen is applied - with urea and a sulfur-coated urea performing best. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book.

Seller Inventory # 9781390023787_0

Bibliographic Details

• Title: Effects of Different Sources of Fertilizer Nitrogen on Growth and Nutrition of
• Publisher: Forgotten Books
• Publication Date: 2024
• Language: English
• ISBN 10: 1390023788
• ISBN 13: 9781390023787
• Binding: Paperback
• Condition: New
• Book Type: print-on-demand item
• Seller catalogs:
  • Chemistry

About this title

Synopsis

Exploring how nitrogen fertilizer choices affect western hemlock seedlings

This study compares twelve different nitrogen fertilizer treatments to see how they influence growth, soil chemistry, and needle composition in western hemlock seedlings. It also examines whether a nitrification inhibitor changes outcomes and how two application rates compare.

In controlled pots, seedlings were treated with a range of N sources, including urea, ammonium salts, calcium nitrate, sulfur-coated forms, and urea blends, with and without inhibitors. The research tracks growth, chlorophyll content, total nitrogen in foliage, soil pH, and various nutrient levels over two harvests, highlighting what helps seedlings grow and what doesn’t.
What you’ll experience in this edition

• A side-by-side look at how different nitrogen sources affect seedling growth and foliage chemistry.
• Insights on how nitrification inhibitors like N-Serve influence soil nitrogen dynamics.
• Clear conclusions about variability across treatments and the practical implications for forest fertilization.

Key takeaways

• Fertilization generally increases seedling growth versus no fertilization, though differences among nitrogen sources are often small.
• Urea paired with N-Serve and sulfur-coated urea show particular promise for improving growth.
• Total nitrogen in foliage rises with fertilization and correlates with soil nitrate levels, while macronutrient and micronutrient levels are largely stable or diluted by growth.
• The study suggests the source of nitrogen may not fully explain variability in plant responses, indicating the need for broader field testing.

Ideal for readers seeking a practical, data-driven look at how different nitrogen fertilizers perform on conifers, and for anyone involved in forestry nutrition planning.