Soybean response on nodulation to starter nitrogen and inoculation with Bradyrhizobium japonicum

Hastuti, R. D., Indrasumunar, A., Pratiwi, E., Roughley, R. J. and Simanungkalit, R. D. M. (1995) Soybean response on nodulation to starter nitrogen and inoculation with Bradyrhizobium japonicum. Indonesian Journal of Crop Science, 10 2: 25-32.

Author Hastuti, R. D.
Indrasumunar, A.
Pratiwi, E.
Roughley, R. J.
Simanungkalit, R. D. M.
Title Soybean response on nodulation to starter nitrogen and inoculation with Bradyrhizobium japonicum
Formatted title
Soybean response on nodulation to starter nitrogen and inoculation with Bradyrhizobium japonicum
Journal name Indonesian Journal of Crop Science   Check publisher's open access policy
ISSN 1411-982X
Publication date 1995
Sub-type Article (original research)
Open Access Status Not Open Access
Volume 10
Issue 2
Start page 25
End page 32
Total pages 8
Place of publication Bogor, Indonesia
Publisher Indonesia Agency for Agricultural Research and Development
Language eng
Formatted abstract
Two experiments to determine a suitable level of starter N to maximize N2 fixation and seed yield were conducted using Indonesian soyabean cultivars and five strains of Bradyrhizobium japonicum. The first experiment was a pot trial using a mix of charcoal and acid-washed quartz sand, while the second experiment was a field trial in Red-Yellow Podzolic soil at Taman Bogo, Lampung, with a very low total N status. In the pot trial, N was applied as urea in amounts equivalent to 0, 25, 50 or 100 kg N/ha. Nodule mass varied inversely with the amount of N applied; 100 kg N/ha decreased nodule mass by 29 mg/plant (17%). Shoot dry weight increased with applied N and also significantly responded to inoculation. The field experiment compared strains of B . japonicum and nitrogen as urea at either 0, 25 and 50 kg N/ha applied to cv. Wilis. In the absence of added N, inoculation increased yield by 18, 20 and 22% for strains FCB26, FCB152, and FCB189, respectively. When nitrogen was applied at the rate of 25 kg N/ha, yield increased by 7 and 8% from inoculation with FCB26 and FCB189, respectively. Yield was highest when 50 kg N/ha was applied, but at this rate and at this site, there was no increased benefit from inoculation. Yield increases at this rate were related to higher N application.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Centre for Integrative Legume Research Publications
 
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