ISSN:
1573-5036
Keywords:
Field beans
;
Inoculation trial
;
Symbiotic N2 fixation
;
No-tillage
Source:
Springer Online Journal Archives 1860-2000
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Summary Field experiments were established at three locations in the Dominican Republic to evaluate the response of field beans (Phaseolus vulgaris L. cv. Pompadour) to inoculation with selected strains ofRhizobium phaseoli. A comparison of no-tillage and conventional tillage was included to determine whether modification of rhizosphere temperature and moisture would influence the inoculation response. Yields of inoculated treatments were not statistically difference from controls and ranged from 30–80% of those obtained on N-fertilized plots. Neither tillage systems nor P fertilization influence the response to inoculation. Serological investigations indicated that the applied rhizobial strains nodulated successfully. This host/endophyte combination appears to form an ineffective symbiotic association. Inoculation trials employing indigenous and commercial strains compared with N fertilizer in the greenhouse support the conclusion from the field studies that symbiotic N2 fixation can provide only a fraction of the plant's N requirement.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02378854
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