Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Decomposition and nutrient release of four potential mulching materials for poplar plantations on upland sites

Decomposition and nutrient release of four potential mulching materials for poplar plantations on... The application of organic residues and the release dynamics of nutrients during decomposition may be crucial to improving poplar growth in upland areas. Field experiments were conducted in Guizhou Province, southwestern China, to determine differences in biomass decomposition of four potential mulching materials in one-year-old poplar plantations. Results showed the initial total content of N, P, K, Ca and Mg in the mulches ranged from 30.0 to 35.0 g/kg and was significantly greater in Quercus fabri , Imperata cylindrica var. major and Pteridium aquilinum var. latiuscukum than in Coriaria nepalensis . The weight loss pattern of these four species during decomposition could be best described by a double exponential decay model, and monthly decay rate coefficients (k) were in the order Q. fabri > C. nepalensis > I. cylindrica > P. aquilinum over a one-year period. Total nutrient (N, P and K) release of the four mulching materials ranged from 74.2 to 90.8% of the initial content after one year of decomposition, while nutrients were released in the order K > P>N. Nutrient release was fastest in C. nepalensis followed by Q. fabri , I. cylindrica , and slowest in P. aquilinum . Thus, taking into account initial nutrient content, nutrient additions and decay rates, the sprouts of woody species ( Q. fabri and C. nepalensis ) with massive foliage proved to be more important as nitrogen sources than the grass or fern. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Agroforestry Systems Springer Journals

Decomposition and nutrient release of four potential mulching materials for poplar plantations on upland sites

Fang, Shengzuo; Li, Huayong; Xie, Baodong
Agroforestry Systems , Volume 74 (1) – Sep 1, 2008
Download PDF
9 pages

Loading next page...
 
/lp/springer-journals/decomposition-and-nutrient-release-of-four-potential-mulching-PjjB2qBLZT

References (36)

Publisher
Springer Journals
Copyright
Copyright © 2008 by Springer Science+Business Media B.V.
Subject
Life Sciences; Agriculture; Forestry
ISSN
0167-4366
eISSN
1572-9680
DOI
10.1007/s10457-008-9155-0
Publisher site
See Article on Publisher Site

Abstract

The application of organic residues and the release dynamics of nutrients during decomposition may be crucial to improving poplar growth in upland areas. Field experiments were conducted in Guizhou Province, southwestern China, to determine differences in biomass decomposition of four potential mulching materials in one-year-old poplar plantations. Results showed the initial total content of N, P, K, Ca and Mg in the mulches ranged from 30.0 to 35.0 g/kg and was significantly greater in Quercus fabri , Imperata cylindrica var. major and Pteridium aquilinum var. latiuscukum than in Coriaria nepalensis . The weight loss pattern of these four species during decomposition could be best described by a double exponential decay model, and monthly decay rate coefficients (k) were in the order Q. fabri > C. nepalensis > I. cylindrica > P. aquilinum over a one-year period. Total nutrient (N, P and K) release of the four mulching materials ranged from 74.2 to 90.8% of the initial content after one year of decomposition, while nutrients were released in the order K > P>N. Nutrient release was fastest in C. nepalensis followed by Q. fabri , I. cylindrica , and slowest in P. aquilinum . Thus, taking into account initial nutrient content, nutrient additions and decay rates, the sprouts of woody species ( Q. fabri and C. nepalensis ) with massive foliage proved to be more important as nitrogen sources than the grass or fern.

Journal

Agroforestry Systems – Springer Journals

Published: Sep 1, 2008

There are no references for this article.