Root Characteristics and Seed Yields of Cowpeas Grown with and without Added Nitrogen Fertilizer

Hortscience: A Publication of the American Society for Hortcultural Science

Volumn 34, Issue 7, 1999, Pages 1238-1239

  Kahn, Brian A ^a   Schroeder, Judith L ^a  

^a OKLAHOMA STATE UNIVERSITY   (United States)

Author keywords

Adventitious root; Basal root; Lateral root; Nodule; Southernpea; Taproot; Vigna unguiculata

Indexed keywords

VIGNA UNGUICULATA;

EID: 0033458804     PISSN: 00185345     EISSN: None     Source Type: Journal    
DOI: 10.21273/hortsci.34.7.1238     Document Type: Article

References (13)

1. Beverly, R.B. and W.M. Jarrell. 1984. Cowpea response to N form, rate, and timing of application. Agron. J. 76:663-668.
2. Buttery, B.R., S.J. Park, and D.J. Hume. 1992. Potential for increasing nitrogen fixation in grain legumes. Can. J. Plant Sci. 72:323-349.
3. Dart, P.J. 1975. Legume root nodule initiation and development, p. 467-506. In: J.G. Torrey and D.T. Clarkson (eds.). The development and function of roots. Academic, London.
4. ElHassan, G.A. and D.D. Focht. 1986. Comparison of inoculant and indigenous rhizobial dinitrogen fixation in cowpeas by direct nitrogen-15 analyses. Soil Sci. Soc. Amer. J. 50:923-927.
5. Elowad, H.O.A. and A.E. Hall. 1987. Influences of early and late nitrogen fertilization on yield and nitrogen fixation of cowpea under well-watered and dry field conditions. Field Crops Res. 15:229-244.
6. Fernandez, G.C.J. and J.C. Miller, Jr. 1986. Interaction between rhizobial inoculation and fertilizer nitrogen in five cowpea cultivars. HortScience 21:1345-1348.
7. Halsey, L.H. 1960. Influence of nitrogen fertilization and seed inoculation levels on yields of southern peas. Proc. Amer. Soc. Hort. Sci. 75:517-520.
8. Kahn, B.A. and P.J. Stoffella. 1987. Root morphological characteristics of field-grown cowpeas. J. Amer. Soc. Hort. Sci. 112:402-406.
9. Kahn, B.A. and P.J. Stoffella. 1991. Nodule distribution among root morphological components of field-grown cowpeas. J. Amer. Soc. Hort. Sci. 116:655-658.
10. Pate, J.S. and P.J. Dart. 1961. Modulation studies in legumes: IV. The influence of inoculum strain and time of application of ammonium nitrate on symbiotic response. Plant Soil 15:329-346.
11. Schroeder, J.L., B.A. Kahn, and J.Q. Lynd. 1998. Utilization of cowpea crop residues to reduce fertilizer nitrogen inputs with fall broccoli. Crop Sci. 38:741-749.
12. Summerfield, R.J., P.J. Dart, P.A. Huxley, A.R.J. Eaglesham, F.R. Minchin, and J.M. Day. 1977. Nitrogen nutrition of cowpea (Vigna unguiculata). 1. Effects of applied nitrogen and symbiotic nitrogen fixation on growth and seed yield. Expt. Agr. 13:129-142.
13. Undersander, D., D. Mertens, and N. Thiex. 1993. Forage analysis procedures. Natl. Forage Testing Assn., Omaha, Nebr.