eprintid: 5016
rev_number: 10
eprint_status: archive
userid: 14
dir: disk0/00/00/50/16
datestamp: 2011-12-17 06:31:33
lastmod: 2011-12-17 06:31:33
status_changed: 2011-12-17 06:31:33
type: article
metadata_visibility: show
contact_email: Library-ICRISAT@cgiar.org
creators_name: Lee, K K
creators_name: Wani, S P
creators_name: Yoneyama, T
creators_name: Trimurtulu, N
creators_name: Harikrishnan, R
icrisatcreators_name: Lee, K K
icrisatcreators_name: Wani, S P
icrisatcreators_name: Trimurtulu, N
icrisatcreators_name: Harikrishnan, R
affiliation: ICRISAT(Patancheru)
affiliation: National Agriculture Research Center
country: India
country: Japan
title: Associative N2-fixation in pearl millet and sorghum: levels and response to inoculation.

ispublished: pub
subjects: S1.5
subjects: s1.4
full_text_status: restricted
abstract: N2-fixation was compared in pearl millet (Pennisetum glaucum), sorghum, pigeonpeas, chickpeas, and groundnuts and the responses of the two cereal crops to inoculation with N2-fixing bacteria was examined. The overall mean nitrogenase activity (C2H2 reduction) in pearl millet throughout the growing period was less than 0.1% of that in pigeonpeas and the activity in sorghum was only 1.3% of that in chickpeas. Whether assessed by the determination of the N balance in pots, using pigeonpeas as reference, or by the measurement of the natural abundance of 15N (δ15N) using groundnuts as reference, N gain by these cereals, even when they were inoculated with N2-fixing bacteria was not observed. Inoculation trials were conducted in pots and in the field with Azospirillum lipoferum and Azotobacter chroococcum. Only one trial with sterilized soil in pots showed a significant response to inoculation. It is concluded that associative N2-fixing systems in pearl millet and sorghum do not exert an agronomically significant impact through N input on the production of these crops.


date: 1994
date_type: published
publication: Soil Science and Plant Nutrition
volume: 40
number: 3
publisher: Japanese Society of Soil Science and Plant Nutrition 
pagerange: 477-484
refereed: TRUE
issn: 0038-0768
related_url_url: http://scholar.google.co.in/scholar?as_q=Associative+N2-Fixation+in+Pearl+Millet+and+Sorghum%3A+Levels+and+Response+to+Inoculation+&num=10&btnG=Search+Scholar&as_epq=&as_oq=&as_eq=&as_occt=title&as_sauthors=&as_publication=&as_ylo=&as_yhi=&as_sdt=1.&as_sd
related_url_type: author
citation:   Lee, K K and Wani, S P and Yoneyama, T and Trimurtulu, N and Harikrishnan, R  (1994) Associative N2-fixation in pearl millet and sorghum: levels and response to inoculation.  Soil Science and Plant Nutrition, 40 (3).  pp. 477-484.  ISSN 0038-0768     
document_url: http://oar.icrisat.org/5016/1/JA%201283.pdf