NDLI: Nitrogen dynamics and mineralization in degraded agricultural soil mulched with fresh grass

Content Provider	Springer Nature Link
Author	Fang, Shengzuo Xie, Baodong Zhang, Huanchao
Copyright Year	2007
Abstract	Understanding mulching influences on nitrogen (N) availability is important for developing N management strategies in plantations at the upland sites of the southwestern China. Dynamics of biomass loss and nutrient release of mulching material, N availability in the soil and N mineralization in situ were evaluated for the treatments with different mulch quantity in degraded agricultural soil. The time taken for 95% decomposition of the initial biomass of Cogon grass (Imperata cylindrical L. Beauv. var. major) was 17 months with a half-life (t $_{1/2}$) of about 4.8 months. During the first 4 months about 55.2% of N was released, and after 1-year decomposition about 71.6% of N was released from the mulch material. The fresh grass mulch increased the available N in the soil as they decomposed. Compared to no mulch treatment, mulch treatments with 2.5, 5.0 and 7.5 kg m$^{−2}$ mulching grass increased available N by about 13.1, 40.8 and 56.4% in the top soil (0–5 cm), and about 23.6, 78.0 and 139.3% in the middle layer (5–20 cm), respectively. The mean annual net N mineralization in the mulched plots had 9.0–40.9% higher cumulative rate than that in no-mulch plots, and the majority of the accumulated N in the incubated soils existed as NO$_{3}$–N. There was a positive relationship between the rate of N mineralization and the available N in both the top soil and the middle layer. Mulch improves soil nutrients and this improvement increased with increasing mulching quantity. The increment of net N mineralization was approximately 69, 161 and 322 kg N ha$^{−1}$ year$^{−1}$ in the soil of 0–20 cm depth for the 2.5, 5.0 and 7.5 kg m$^{−2}$ grass mulch treatments, respectively. The results from this study will provide a basis to optimize mulching techniques for poplar plantations in degraded agricultural soils of southwestern China.
Starting Page	269
Ending Page	280
Page Count	12
File Format	PDF
ISSN	0032079X
Journal	Plant and Soil
Volume Number	300
Issue Number	1-2
e-ISSN	15735036
Language	English
Publisher	Springer Netherlands
Publisher Date	2007-09-19
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Available nitrogen Grass mulch Half lives In situ soil incubation Nitrogen mineralization Nitrogen release Ecology Plant Physiology Soil Science & Conservation Plant Sciences
Content Type	Text
Resource Type	Article
Subject	Soil Science Plant Science

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Nitrogen dynamics and mineralization in degraded agricultural soil mulched with fresh grass

In situ annual nitrogen mineralization predicted by simple soil properties and short-period field incubation

Manure composition affects net transformation of nitrogen from dairy manures

Can mineralization of soil organic nitrogen meet maize nitrogen demand?

Interactions of maize and Italian ryegrass in a living mulch system: (2) Nitrogen and water dynamics

Influence of competition for nitrogen in soil on net mineralization of nitrogen

Interactions of water, mulch and nitrogen on sorghum in Niger

Oat plant effects on net nitrogen mineralization

Temperature sensitivity of soil carbon and nitrogen mineralization: impacts of nitrogen species and land use type

Nitrogen dynamics and mineralization in degraded agricultural soil mulched with fresh grass

Similar Documents

Nitrogen dynamics and mineralization in degraded agricultural soil mulched with fresh grass

In situ annual nitrogen mineralization predicted by simple soil properties and short-period field incubation

Manure composition affects net transformation of nitrogen from dairy manures

Can mineralization of soil organic nitrogen meet maize nitrogen demand?

Interactions of maize and Italian ryegrass in a living mulch system: (2) Nitrogen and water dynamics

Influence of competition for nitrogen in soil on net mineralization of nitrogen

Interactions of water, mulch and nitrogen on sorghum in Niger

Oat plant effects on net nitrogen mineralization

Temperature sensitivity of soil carbon and nitrogen mineralization: impacts of nitrogen species and land use type

Nitrogen dynamics and mineralization in degraded agricultural soil mulched with fresh grass