NDLI: Cowpea N rhizodeposition and its below-ground transfer to a co-existing and to a subsequent millet crop on a sandy soil of the Sudano-Sahelian eco-zone

Content Provider	Springer Nature Link
Author	Laberge, Guillaume Haussmann, Bettina Ambus, Per Høgh Jensen, Henning
Copyright Year	2010
Abstract	Nitrogen (N) rhizodeposition by cowpea (Vigna unguiculata (L.) Walp) is potentially a large N source in cropping systems of Sub-Saharan Africa. A field experiment was conducted to measure cowpea N rhizodeposition under the conditions of the Sudano-Sahelian zone using direct $^{15}$N labelling techniques to trace the amount of deposition and its transfer to associated and subsequent crops. Half of the total cowpea crop N was located below-ground at plant maturity, which exceeded 20 kg N ha$^{−1}$ when intercropped with millet. Only 15% of the below-ground cowpea N was recovered in roots, while 85% was found in the rhizodeposited pools. The experiment demonstrated that direct below-ground N transfer occurred from cowpea to millet in intercrop at a rate of 2 kg N ha$^{−1}$ over the growing season. Forty percent of the 25 kg below-ground N that the cowpea crop left at harvest were identifiable in the top 0.30 m soil in the beginning of the next planting season 7 months later; a pool still present at the end of that second season. Thus, the subsequent crop of millet (Pennisetum glaucum (L.) R. Br.) only recovered 2.5 kg N ha$^{−1}$ from the below-ground cowpea pre-crop N during this growth season. The role and potential of cowpea as N provider has been underestimated in the past by ignoring the large proportion of N contained in its rhizodeposits. However, information is needed to determine how losses of the rhizodeposited N can be minimized to fully harness the potential of cowpea as N provider in agro-ecosystems of the region.
Starting Page	369
Ending Page	382
Page Count	14
File Format	PDF
ISSN	0032079X
Journal	Plant and Soil
Volume Number	340
Issue Number	1-2
e-ISSN	15735036
Language	English
Publisher	Springer Netherlands
Publisher Date	2010-11-04
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	$^{15}$N Vigna unguiculata Leaf labelling Legume Nitrogen transfer Tracer Roots Cowpea Pennisetum glaucum N deposition Plant Physiology Plant Sciences Soil Science & Conservation Ecology
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

Cowpea N Rhizodeposition And Its Below-ground Transfer To A Co-existing And To A Subsequent Millet Crop On A Sandy Soil Of The Sudano-Sahelian Eco-zone

Effects of Cropping System and Cowpea Variety on Symbiotic Potential and Yields of Cowpea (Vigna unguiculata L. Walp) and Pearl Millet (Pennisetum glaucum L.) in the Sudano-Sahelian Zone of Mali

Improving millet/cowpea intercropping in the semi-arid zone of Mali

Bioefficacy And Economics Of Different Insecticides Against Legume Pod Borer (Maruca Vitrata Fabricius) Infesting Cowpea (Vigna Unguiculata Walpers)

Financial performance of fertilisation strategies for sustainable soil fertility management in Sudano-Sahelian West Africa 1: profitability of annual fertilisation strategies

Financial performance of fertilization strategies for sustainable soil fertility management in Sudano–Sahelian West Africa. 2: Profitability of long-term capital investments in rockphosphate

Genetic mapping and legume synteny of aphid resistance in African cowpea (Vigna unguiculata L. Walp.) grown in California

Below-ground nitrogen transfer from oak seedlings facilitates Molinia growth: 15 N pulse-chase labelling

Association Analysis In Segregating Generations Of Inter Subspecies Crosses Of Cowpea - (Vigna Unguiculata Ssp. Unguiculata And Vigna Unguiculata Ssp. Sesquipedalis)*

Cowpea N rhizodeposition and its below-ground transfer to a co-existing and to a subsequent millet crop on a sandy soil of the Sudano-Sahelian eco-zone

Similar Documents

Cowpea N Rhizodeposition And Its Below-ground Transfer To A Co-existing And To A Subsequent Millet Crop On A Sandy Soil Of The Sudano-Sahelian Eco-zone

Effects of Cropping System and Cowpea Variety on Symbiotic Potential and Yields of Cowpea (Vigna unguiculata L. Walp) and Pearl Millet (Pennisetum glaucum L.) in the Sudano-Sahelian Zone of Mali

Improving millet/cowpea intercropping in the semi-arid zone of Mali

Bioefficacy And Economics Of Different Insecticides Against Legume Pod Borer (Maruca Vitrata Fabricius) Infesting Cowpea (Vigna Unguiculata Walpers)

Financial performance of fertilisation strategies for sustainable soil fertility management in Sudano-Sahelian West Africa 1: profitability of annual fertilisation strategies

Financial performance of fertilization strategies for sustainable soil fertility management in Sudano–Sahelian West Africa. 2: Profitability of long-term capital investments in rockphosphate

Genetic mapping and legume synteny of aphid resistance in African cowpea (Vigna unguiculata L. Walp.) grown in California

Below-ground nitrogen transfer from oak seedlings facilitates Molinia growth: 15 N pulse-chase labelling

Association Analysis In Segregating Generations Of Inter Subspecies Crosses Of Cowpea - (Vigna Unguiculata Ssp. Unguiculata And Vigna Unguiculata Ssp. Sesquipedalis)*

Cowpea N rhizodeposition and its below-ground transfer to a co-existing and to a subsequent millet crop on a sandy soil of the Sudano-Sahelian eco-zone